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My main interest lies in how organisms adapt to different or changing environments and how this influences speciation and adaptive radiation. Currently, I am trying to resolve why some cichlid species have diversified in some lineages whereas other lineages occuring in the same or similar environment refuse to do so.<br /><span class="u-fw700">Supervisors: </span>Ole Seehausen<br /><div class="js-profile-less-about u-linkUnstyled u-tcGrayDarker u-textDecorationUnderline u-displayNone">less</div></div></div><div class="ri-section"><div class="ri-section-header"><span>Interests</span><a class="ri-more-link js-profile-ri-list-card" data-click-track="profile-user-info-primary-research-interest" data-has-card-for-ri-list="534684">View All (14)</a></div><div class="ri-tags-container"><a data-click-track="profile-user-info-expand-research-interests" data-has-card-for-ri-list="534684" href="https://www.academia.edu/Documents/in/Biology"><div id="js-react-on-rails-context" style="display:none" 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data-dom-id="Pill-react-component-d8a27651-e6b5-427e-adab-f87a8876e207"></div> <div id="Pill-react-component-d8a27651-e6b5-427e-adab-f87a8876e207"></div> </a><a data-click-track="profile-user-info-expand-research-interests" data-has-card-for-ri-list="534684" href="https://www.academia.edu/Documents/in/Speciation"><div class="js-react-on-rails-component" style="display:none" data-component-name="Pill" data-props="{"color":"gray","children":["Speciation"]}" data-trace="false" data-dom-id="Pill-react-component-0df13057-eef3-4125-91d5-458e44634155"></div> <div id="Pill-react-component-0df13057-eef3-4125-91d5-458e44634155"></div> </a><a data-click-track="profile-user-info-expand-research-interests" data-has-card-for-ri-list="534684" href="https://www.academia.edu/Documents/in/Adaptive_Radiation"><div class="js-react-on-rails-component" style="display:none" data-component-name="Pill" data-props="{"color":"gray","children":["Adaptive Radiation"]}" data-trace="false" 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id="social-redesign-work-container"><div class="upload-header"><h2 class="ds2-5-heading-sans-serif-xs">Uploads</h2></div><div class="nav-container backbone-profile-documents-nav hidden-xs"><ul class="nav-tablist" role="tablist"><li class="nav-chip active" role="presentation"><a data-section-name="" data-toggle="tab" href="#all" role="tab">all</a></li><li class="nav-chip" role="presentation"><a class="js-profile-docs-nav-section u-textTruncate" data-click-track="profile-works-tab" data-section-name="Papers" data-toggle="tab" href="#papers" role="tab" title="Papers"><span>63</span> <span class="ds2-5-body-sm-bold">Papers</span></a></li><li class="nav-chip" role="presentation"><a class="js-profile-docs-nav-section u-textTruncate" data-click-track="profile-works-tab" data-section-name="Books" data-toggle="tab" href="#books" role="tab" title="Books"><span>1</span> <span class="ds2-5-body-sm-bold">Books</span></a></li></ul></div><div class="divider ds-divider-16" style="margin: 0px;"></div><div class="documents-container backbone-social-profile-documents" style="width: 100%;"><div class="u-taCenter"></div><div class="profile--tab_content_container js-tab-pane tab-pane active" id="all"><div class="profile--tab_heading_container js-section-heading" data-section="Papers" id="Papers"><h3 class="profile--tab_heading_container">Papers by Jacco van Rijssel</h3></div><div class="js-work-strip profile--work_container" data-work-id="123145256"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/123145256/Bestandsoverzicht_van_snoekbaars_baars_blankvoorn_en_brasem_In_het_IJsselmeer_Markermeer_2022"><img alt="Research paper thumbnail of Bestandsoverzicht van snoekbaars, baars, blankvoorn en brasem : In het IJsselmeer/Markermeer, 2022" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div 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Rijssel","url":"https://wageningen-ur.academia.edu/JaccovanRijssel"},"attachments":[],"research_interests":[],"urls":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="123145253"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/123145253/Reintroducing_Atlantic_salmon_in_the_river_Rhine_for_decades_Why_did_it_not_result_in_the_return_of_a_viable_population"><img alt="Research paper thumbnail of Reintroducing Atlantic salmon in the river Rhine for decades: Why did it not result in the return of a viable population?" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/123145253/Reintroducing_Atlantic_salmon_in_the_river_Rhine_for_decades_Why_did_it_not_result_in_the_return_of_a_viable_population">Reintroducing Atlantic salmon in the river Rhine for decades: Why did it not result in the return of a viable population?</a></div><div class="wp-workCard_item"><span>River research and applications</span><span>, Apr 21, 2024</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Freshwater species biodiversity is under threat. The average global decline for migratory fish sp...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Freshwater species biodiversity is under threat. The average global decline for migratory fish species is estimated to be more than 75% since 1970. Atlantic salmon is one of these species with a steep decline in northwestern Europe and it even went extinct in the river Rhine in the 1950s. The causes for this decline have been posted to habitat loss, pollution, climate change and overfishing. Annual stocking in the Rhine since the late 1980s resulted in an initial increase in the Atlantic salmon numbers after which numbers collapsed again. In this paper, we lay out the recent decline, estimate losses of smolts and adults at different sections in the freshwater habitat and elaborate on potential causes of the recent decline and these losses. We found</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="123145253"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="123145253"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 123145253; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=123145253]").text(description); $(".js-view-count[data-work-id=123145253]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 123145253; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='123145253']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 123145253, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=123145253]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":123145253,"title":"Reintroducing Atlantic salmon in the river Rhine for decades: Why did it not result in the return of a viable population?","translated_title":"","metadata":{"abstract":"Freshwater species biodiversity is under threat. The average global decline for migratory fish species is estimated to be more than 75% since 1970. Atlantic salmon is one of these species with a steep decline in northwestern Europe and it even went extinct in the river Rhine in the 1950s. The causes for this decline have been posted to habitat loss, pollution, climate change and overfishing. Annual stocking in the Rhine since the late 1980s resulted in an initial increase in the Atlantic salmon numbers after which numbers collapsed again. In this paper, we lay out the recent decline, estimate losses of smolts and adults at different sections in the freshwater habitat and elaborate on potential causes of the recent decline and these losses. We found","publication_date":{"day":21,"month":4,"year":2024,"errors":{}},"publication_name":"River research and applications"},"translated_abstract":"Freshwater species biodiversity is under threat. The average global decline for migratory fish species is estimated to be more than 75% since 1970. Atlantic salmon is one of these species with a steep decline in northwestern Europe and it even went extinct in the river Rhine in the 1950s. The causes for this decline have been posted to habitat loss, pollution, climate change and overfishing. Annual stocking in the Rhine since the late 1980s resulted in an initial increase in the Atlantic salmon numbers after which numbers collapsed again. In this paper, we lay out the recent decline, estimate losses of smolts and adults at different sections in the freshwater habitat and elaborate on potential causes of the recent decline and these losses. We found","internal_url":"https://www.academia.edu/123145253/Reintroducing_Atlantic_salmon_in_the_river_Rhine_for_decades_Why_did_it_not_result_in_the_return_of_a_viable_population","translated_internal_url":"","created_at":"2024-08-23T02:43:26.223-07:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":534684,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[],"slug":"Reintroducing_Atlantic_salmon_in_the_river_Rhine_for_decades_Why_did_it_not_result_in_the_return_of_a_viable_population","translated_slug":"","page_count":null,"language":"en","content_type":"Work","owner":{"id":534684,"first_name":"Jacco","middle_initials":null,"last_name":"van Rijssel","page_name":"JaccovanRijssel","domain_name":"wageningen-ur","created_at":"2011-07-07T01:30:45.155-07:00","display_name":"Jacco van Rijssel","url":"https://wageningen-ur.academia.edu/JaccovanRijssel"},"attachments":[],"research_interests":[{"id":19673,"name":"River Ecology","url":"https://www.academia.edu/Documents/in/River_Ecology"},{"id":46371,"name":"Salmonids","url":"https://www.academia.edu/Documents/in/Salmonids"},{"id":64073,"name":"Brown trout","url":"https://www.academia.edu/Documents/in/Brown_trout"},{"id":64336,"name":"Population","url":"https://www.academia.edu/Documents/in/Population"},{"id":94214,"name":"Telemetry","url":"https://www.academia.edu/Documents/in/Telemetry"},{"id":164869,"name":"Atlantic Salmon","url":"https://www.academia.edu/Documents/in/Atlantic_Salmon"},{"id":173285,"name":"Fishery","url":"https://www.academia.edu/Documents/in/Fishery"},{"id":395125,"name":"Rhine-Meuse Delta","url":"https://www.academia.edu/Documents/in/Rhine-Meuse_Delta"}],"urls":[{"id":44189995,"url":"https://doi.org/10.1002/rra.4284"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="118702632"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/118702632/Reintroducing_Atlantic_salmon_in_the_river_Rhine_for_decades_Why_did_it_not_result_in_the_return_of_a_viable_population"><img alt="Research paper thumbnail of Reintroducing Atlantic salmon in the river Rhine for decades: Why did it not result in the return of a viable population" class="work-thumbnail" src="https://attachments.academia-assets.com/114267487/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/118702632/Reintroducing_Atlantic_salmon_in_the_river_Rhine_for_decades_Why_did_it_not_result_in_the_return_of_a_viable_population">Reintroducing Atlantic salmon in the river Rhine for decades: Why did it not result in the return of a viable population</a></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Freshwater species biodiversity is under threat. The average global decline for migratory fish sp...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Freshwater species biodiversity is under threat. The average global decline for migratory fish species is estimated to be more than 75% since 1970. Atlantic salmon is one of these species with a steep decline in northwestern Europe and it even went extinct in the river Rhine in the 1950s. The causes for this decline have been posted to habitat loss, pollution, climate change and overfishing. Annual stocking in the Rhine since the late 1980s resulted in an initial increase in the Atlantic salmon numbers after which numbers collapsed again. In this paper, we lay out the recent decline, estimate losses of smolts and adults at different sections in the freshwater habitat and elaborate on potential causes of the recent decline and these losses. We found</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="f6de41c7647b882ad7caeb93e2f5ac85" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":114267487,"asset_id":118702632,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/114267487/download_file?st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="118702632"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="118702632"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 118702632; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=118702632]").text(description); $(".js-view-count[data-work-id=118702632]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 118702632; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='118702632']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 118702632, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "f6de41c7647b882ad7caeb93e2f5ac85" } } $('.js-work-strip[data-work-id=118702632]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":118702632,"title":"Reintroducing Atlantic salmon in the river Rhine for decades: Why did it not result in the return of a viable population","translated_title":"","metadata":{"doi":"10.1002/rra.4284","abstract":"Freshwater species biodiversity is under threat. The average global decline for migratory fish species is estimated to be more than 75% since 1970. Atlantic salmon is one of these species with a steep decline in northwestern Europe and it even went extinct in the river Rhine in the 1950s. The causes for this decline have been posted to habitat loss, pollution, climate change and overfishing. Annual stocking in the Rhine since the late 1980s resulted in an initial increase in the Atlantic salmon numbers after which numbers collapsed again. In this paper, we lay out the recent decline, estimate losses of smolts and adults at different sections in the freshwater habitat and elaborate on potential causes of the recent decline and these losses. We found","publication_date":{"day":null,"month":null,"year":2024,"errors":{}}},"translated_abstract":"Freshwater species biodiversity is under threat. The average global decline for migratory fish species is estimated to be more than 75% since 1970. Atlantic salmon is one of these species with a steep decline in northwestern Europe and it even went extinct in the river Rhine in the 1950s. The causes for this decline have been posted to habitat loss, pollution, climate change and overfishing. Annual stocking in the Rhine since the late 1980s resulted in an initial increase in the Atlantic salmon numbers after which numbers collapsed again. In this paper, we lay out the recent decline, estimate losses of smolts and adults at different sections in the freshwater habitat and elaborate on potential causes of the recent decline and these losses. We found","internal_url":"https://www.academia.edu/118702632/Reintroducing_Atlantic_salmon_in_the_river_Rhine_for_decades_Why_did_it_not_result_in_the_return_of_a_viable_population","translated_internal_url":"","created_at":"2024-05-07T07:39:09.279-07:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":534684,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":114267487,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/114267487/thumbnails/1.jpg","file_name":"River_Research_Apps_2024_Rijssel_Reintroducing_Atlantic_salmon_in_the_river_Rhine_for_decades_Why_did_it_not_1_.pdf","download_url":"https://www.academia.edu/attachments/114267487/download_file?st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Reintroducing_Atlantic_salmon_in_the_riv.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/114267487/River_Research_Apps_2024_Rijssel_Reintroducing_Atlantic_salmon_in_the_river_Rhine_for_decades_Why_did_it_not_1_-libre.pdf?1715095277=\u0026response-content-disposition=attachment%3B+filename%3DReintroducing_Atlantic_salmon_in_the_riv.pdf\u0026Expires=1733027989\u0026Signature=aOJ0RzXmY1zUzMRPEi2xx72NpXfMuFxqC1QdmYjxE4WXFMKCz8c9x0trRXMjFphzg~U4u0RIAmziX~6ZkiNA1rw7V~FScbVn0DA0b8iY1uTO95elTpG3QErKljzLBZVuWkcRcMz6ZPRu4g36Y9KU0ZmwMLg0EvRrB~oo7M3~C8KVsHM8ivv5Ep~0Ng7U9SfvAvEJxyC~jAt0tsEsv2LU4Eh4i-a1xvySNtGt1CIShNG1zWdbMT3iwXm96DCp3M2t6gn88IFZ5KlbTOtN3SwiD-0Ey6gZRsw4bj6xjFTFbuAtrh49eu0DkKdVvr7cm5G4CZCAsjPyHgd5nuiI8eNE~A__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Reintroducing_Atlantic_salmon_in_the_river_Rhine_for_decades_Why_did_it_not_result_in_the_return_of_a_viable_population","translated_slug":"","page_count":19,"language":"en","content_type":"Work","owner":{"id":534684,"first_name":"Jacco","middle_initials":null,"last_name":"van Rijssel","page_name":"JaccovanRijssel","domain_name":"wageningen-ur","created_at":"2011-07-07T01:30:45.155-07:00","display_name":"Jacco van Rijssel","url":"https://wageningen-ur.academia.edu/JaccovanRijssel"},"attachments":[{"id":114267487,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/114267487/thumbnails/1.jpg","file_name":"River_Research_Apps_2024_Rijssel_Reintroducing_Atlantic_salmon_in_the_river_Rhine_for_decades_Why_did_it_not_1_.pdf","download_url":"https://www.academia.edu/attachments/114267487/download_file?st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Reintroducing_Atlantic_salmon_in_the_riv.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/114267487/River_Research_Apps_2024_Rijssel_Reintroducing_Atlantic_salmon_in_the_river_Rhine_for_decades_Why_did_it_not_1_-libre.pdf?1715095277=\u0026response-content-disposition=attachment%3B+filename%3DReintroducing_Atlantic_salmon_in_the_riv.pdf\u0026Expires=1733027989\u0026Signature=aOJ0RzXmY1zUzMRPEi2xx72NpXfMuFxqC1QdmYjxE4WXFMKCz8c9x0trRXMjFphzg~U4u0RIAmziX~6ZkiNA1rw7V~FScbVn0DA0b8iY1uTO95elTpG3QErKljzLBZVuWkcRcMz6ZPRu4g36Y9KU0ZmwMLg0EvRrB~oo7M3~C8KVsHM8ivv5Ep~0Ng7U9SfvAvEJxyC~jAt0tsEsv2LU4Eh4i-a1xvySNtGt1CIShNG1zWdbMT3iwXm96DCp3M2t6gn88IFZ5KlbTOtN3SwiD-0Ey6gZRsw4bj6xjFTFbuAtrh49eu0DkKdVvr7cm5G4CZCAsjPyHgd5nuiI8eNE~A__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":19673,"name":"River Ecology","url":"https://www.academia.edu/Documents/in/River_Ecology"},{"id":46371,"name":"Salmonids","url":"https://www.academia.edu/Documents/in/Salmonids"},{"id":64073,"name":"Brown trout","url":"https://www.academia.edu/Documents/in/Brown_trout"},{"id":94214,"name":"Telemetry","url":"https://www.academia.edu/Documents/in/Telemetry"},{"id":164869,"name":"Atlantic Salmon","url":"https://www.academia.edu/Documents/in/Atlantic_Salmon"},{"id":395125,"name":"Rhine-Meuse Delta","url":"https://www.academia.edu/Documents/in/Rhine-Meuse_Delta"}],"urls":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="93778035"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/93778035/Strong_species_structure_but_weak_geographical_structure_in_demersal_Lake_Victoria_cichlids"><img alt="Research paper thumbnail of Strong species structure but weak geographical structure in demersal Lake Victoria cichlids" class="work-thumbnail" src="https://attachments.academia-assets.com/96422195/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/93778035/Strong_species_structure_but_weak_geographical_structure_in_demersal_Lake_Victoria_cichlids">Strong species structure but weak geographical structure in demersal Lake Victoria cichlids</a></div><div class="wp-workCard_item"><span>Ecology and Evolution</span><span>, 2022</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Studying phenotypic and genetic differentiation between very young species can be very informativ...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Studying phenotypic and genetic differentiation between very young species can be<br />very informative with regard to learning about processes of speciation. Identifying<br />and characterizing genetic species structure and distinguishing it from spatial genetic<br />structure within a species is a prerequisite for this and is often not given sufficient<br />attention. Young radiations of cichlid fish are classical speciation study systems.<br />However, it is only during the past decade that population genomics based on nextgeneration sequencing has begun to provide the power to resolve species and distinguish speciation from spatial population structure for the youngest of these radiations.<br />The Lake Victoria haplochromine cichlids constitute the youngest large cichlid fish<br />radiation, probably <20,000 years old. Earlier work showed that communities of rocky<br />reef cichlids are composed of many reciprocally monophyletic species despite their<br />very recent origins. Here, we build on this work by studying assemblages of offshore<br />demersal cichlids, adding analyses of within-species<br />spatial structure to the sympatric species structure. We sampled seven multispecies communities along a 6-km-long<br />transect from one side of the Mwanza Gulf to the other side. We investigated whether<br />phenotypically diagnosed putative species are reciprocally monophyletic and whether<br />such monophyly is stable across species geographic ranges. We show that all species<br />are genetically strongly differentiated in sympatry, that they are reciprocally monophyletic, and that monophyly is stable across distribution ranges. We found significant<br />differentiation between geographically distinct populations in two species, but no or<br />weak isolation by distance. We further found subtle but significant morphological differences between all species and a linear relationship between genomic and morphological distance which suggests that differences in morphology begin to accumulate<br />after speciation has already affected genome-wide<br />restrictions of gene flow.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="a4fd45d5dff8c9c1009bcd3613743882" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":96422195,"asset_id":93778035,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/96422195/download_file?st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="93778035"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="93778035"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 93778035; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=93778035]").text(description); $(".js-view-count[data-work-id=93778035]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 93778035; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='93778035']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 93778035, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "a4fd45d5dff8c9c1009bcd3613743882" } } $('.js-work-strip[data-work-id=93778035]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":93778035,"title":"Strong species structure but weak geographical structure in demersal Lake Victoria cichlids","translated_title":"","metadata":{"doi":"10.1002/ece3.9669","abstract":"Studying phenotypic and genetic differentiation between very young species can be\nvery informative with regard to learning about processes of speciation. Identifying\nand characterizing genetic species structure and distinguishing it from spatial genetic\nstructure within a species is a prerequisite for this and is often not given sufficient\nattention. Young radiations of cichlid fish are classical speciation study systems.\nHowever, it is only during the past decade that population genomics based on nextgeneration sequencing has begun to provide the power to resolve species and distinguish speciation from spatial population structure for the youngest of these radiations.\nThe Lake Victoria haplochromine cichlids constitute the youngest large cichlid fish\nradiation, probably \u003c20,000 years old. Earlier work showed that communities of rocky\nreef cichlids are composed of many reciprocally monophyletic species despite their\nvery recent origins. Here, we build on this work by studying assemblages of offshore\ndemersal cichlids, adding analyses of within-species\nspatial structure to the sympatric species structure. We sampled seven multispecies communities along a 6-km-long\ntransect from one side of the Mwanza Gulf to the other side. We investigated whether\nphenotypically diagnosed putative species are reciprocally monophyletic and whether\nsuch monophyly is stable across species geographic ranges. We show that all species\nare genetically strongly differentiated in sympatry, that they are reciprocally monophyletic, and that monophyly is stable across distribution ranges. We found significant\ndifferentiation between geographically distinct populations in two species, but no or\nweak isolation by distance. We further found subtle but significant morphological differences between all species and a linear relationship between genomic and morphological distance which suggests that differences in morphology begin to accumulate\nafter speciation has already affected genome-wide\nrestrictions of gene flow.","publication_date":{"day":null,"month":null,"year":2022,"errors":{}},"publication_name":"Ecology and Evolution"},"translated_abstract":"Studying phenotypic and genetic differentiation between very young species can be\nvery informative with regard to learning about processes of speciation. Identifying\nand characterizing genetic species structure and distinguishing it from spatial genetic\nstructure within a species is a prerequisite for this and is often not given sufficient\nattention. Young radiations of cichlid fish are classical speciation study systems.\nHowever, it is only during the past decade that population genomics based on nextgeneration sequencing has begun to provide the power to resolve species and distinguish speciation from spatial population structure for the youngest of these radiations.\nThe Lake Victoria haplochromine cichlids constitute the youngest large cichlid fish\nradiation, probably \u003c20,000 years old. Earlier work showed that communities of rocky\nreef cichlids are composed of many reciprocally monophyletic species despite their\nvery recent origins. Here, we build on this work by studying assemblages of offshore\ndemersal cichlids, adding analyses of within-species\nspatial structure to the sympatric species structure. We sampled seven multispecies communities along a 6-km-long\ntransect from one side of the Mwanza Gulf to the other side. We investigated whether\nphenotypically diagnosed putative species are reciprocally monophyletic and whether\nsuch monophyly is stable across species geographic ranges. We show that all species\nare genetically strongly differentiated in sympatry, that they are reciprocally monophyletic, and that monophyly is stable across distribution ranges. We found significant\ndifferentiation between geographically distinct populations in two species, but no or\nweak isolation by distance. 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="80166234"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/80166234/Efficiency_changes_in_bottom_trawling_for_flatfish_species_as_a_result_of_the_replacement_of_mechanical_stimulation_by_electric_stimulation"><img alt="Research paper thumbnail of Efficiency changes in bottom trawling for flatfish species as a result of the replacement of mechanical stimulation by electric stimulation" class="work-thumbnail" src="https://attachments.academia-assets.com/86638681/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/80166234/Efficiency_changes_in_bottom_trawling_for_flatfish_species_as_a_result_of_the_replacement_of_mechanical_stimulation_by_electric_stimulation">Efficiency changes in bottom trawling for flatfish species as a result of the replacement of mechanical stimulation by electric stimulation</a></div><div class="wp-workCard_item"><span>ICES Journal of Marine Science</span><span>, 2020</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Although fishing with electricity is illegal in the European Union, a number of temporary licence...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Although fishing with electricity is illegal in the European Union, a number of temporary licences allowed converting beam trawlers to pulse trawling. To analyse how the adaption of pulse trawling changed this fishery, we studied fishing speeds and landings per unit effort as proxies for catch efficiencies for the main target species. Compared to conventional tickler chain beam trawls, pulse trawls were towed at lower speeds (small vessels −10%, large vessels −23%). Large vessels that switched from conventional beam trawls to pulse trawls at the end of 2009 gradually increased catch efficiency for sole over the period of almost 1 year. While pulse trawling was found to have higher catch rates (kg/h) for sole (small vessels +74%, large vessels +17%), lower catch rates were observed for plaice (small vessels −31%, large vessels −32%). Vessels that switched later achieved immediate gains in catch efficiency for sole. The change in catch efficiency is likely due to the difference in cra...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="be534747df7991e2d9aadea73a14282a" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":86638681,"asset_id":80166234,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/86638681/download_file?st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="80166234"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="80166234"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 80166234; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=80166234]").text(description); $(".js-view-count[data-work-id=80166234]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 80166234; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='80166234']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 80166234, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "be534747df7991e2d9aadea73a14282a" } } $('.js-work-strip[data-work-id=80166234]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":80166234,"title":"Efficiency changes in bottom trawling for flatfish species as a result of the replacement of mechanical stimulation by electric stimulation","translated_title":"","metadata":{"abstract":"Although fishing with electricity is illegal in the European Union, a number of temporary licences allowed converting beam trawlers to pulse trawling. To analyse how the adaption of pulse trawling changed this fishery, we studied fishing speeds and landings per unit effort as proxies for catch efficiencies for the main target species. Compared to conventional tickler chain beam trawls, pulse trawls were towed at lower speeds (small vessels −10%, large vessels −23%). Large vessels that switched from conventional beam trawls to pulse trawls at the end of 2009 gradually increased catch efficiency for sole over the period of almost 1 year. While pulse trawling was found to have higher catch rates (kg/h) for sole (small vessels +74%, large vessels +17%), lower catch rates were observed for plaice (small vessels −31%, large vessels −32%). Vessels that switched later achieved immediate gains in catch efficiency for sole. The change in catch efficiency is likely due to the difference in cra...","publisher":"Oxford University Press (OUP)","publication_date":{"day":null,"month":null,"year":2020,"errors":{}},"publication_name":"ICES Journal of Marine Science"},"translated_abstract":"Although fishing with electricity is illegal in the European Union, a number of temporary licences allowed converting beam trawlers to pulse trawling. To analyse how the adaption of pulse trawling changed this fishery, we studied fishing speeds and landings per unit effort as proxies for catch efficiencies for the main target species. Compared to conventional tickler chain beam trawls, pulse trawls were towed at lower speeds (small vessels −10%, large vessels −23%). Large vessels that switched from conventional beam trawls to pulse trawls at the end of 2009 gradually increased catch efficiency for sole over the period of almost 1 year. While pulse trawling was found to have higher catch rates (kg/h) for sole (small vessels +74%, large vessels +17%), lower catch rates were observed for plaice (small vessels −31%, large vessels −32%). Vessels that switched later achieved immediate gains in catch efficiency for sole. 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="80166232"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/80166232/Lion_predation_on_livestock_and_native_wildlife_in_Waza_National_Park_northern_Cameroon"><img alt="Research paper thumbnail of Lion predation on livestock and native wildlife in Waza National Park, northern Cameroon" class="work-thumbnail" src="https://attachments.academia-assets.com/86638734/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/80166232/Lion_predation_on_livestock_and_native_wildlife_in_Waza_National_Park_northern_Cameroon">Lion predation on livestock and native wildlife in Waza National Park, northern Cameroon</a></div><div class="wp-workCard_item"><span>mammalia</span><span>, 2013</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="f52f8d5ed83b9ea278c338d6de196323" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":86638734,"asset_id":80166232,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/86638734/download_file?st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="80166232"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="80166232"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 80166232; 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Diet was determined using global positioning system (GPS) data of lion kill sites (clusters of GPS location points) collected using radio collars. Lions consumed 14 different prey species, with five species that were either medium (50-200 kg) or large (\u003e 200 kg) in size forming the bulk of kills. The western kob (Kobus kob kob) was the most common (23.5 %) wild prey of lions, but worryingly livestock (predominantly cattle) constituted as much as 21.6 % of the diet. This creates a conservation problem resulting in lions being killed in retaliation. However, this conflict is strongly exacerbated by herders driving their cattle into the park for forage and water. Wild prey was also consumed outside the park (6.7 %), suggesting excursions beyond the park boundary. Lions showed a preference for wild prey over livestock when relative abundances were considered. Management efforts to reduce livestock intrusion into the park and to reverse the declining trends of wild prey populations would significantly reduce predation of livestock and prevent persecution of lions in this park, but conflict mitigation measures outside the park are also urgently needed.","publication_date":{"day":null,"month":null,"year":2013,"errors":{}},"publication_name":"mammalia","grobid_abstract_attachment_id":86638734},"translated_abstract":null,"internal_url":"https://www.academia.edu/80166232/Lion_predation_on_livestock_and_native_wildlife_in_Waza_National_Park_northern_Cameroon","translated_internal_url":"","created_at":"2022-05-29T01:31:42.631-07:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":534684,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":86638734,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/86638734/thumbnails/1.jpg","file_name":"Tumenta_et_al._2013.pdf","download_url":"https://www.academia.edu/attachments/86638734/download_file?st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Lion_predation_on_livestock_and_native_w.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/86638734/Tumenta_et_al._2013-libre.pdf?1653813266=\u0026response-content-disposition=attachment%3B+filename%3DLion_predation_on_livestock_and_native_w.pdf\u0026Expires=1733027989\u0026Signature=Y4Ktx172ROYRBoPdTdQ2VhEVe--zes4~xlP3O79QBmWLWXEK2GJDJ9UM-pPs3JtU8OOud1Jp7xX~YLDYmssHOEr4NuVCO7ifkaKtjqHvAnh9bguwdx2QYJDCMij~a3h7PzNOpEjd068l5dHo0pCeuJT6ZRjJBWxsSpuLS91YzT9Pp5Q9pHY0bhxJXGsEDzOiBKMDsG7oRDhlkW0vo5I2TVoQLkaav0PK6P~ofiXHTYw0yxKaiMb3tHf14qQ3FgTW7khufvZ9OWpGMhO-xK4mC7pXMIa7jTD0Yvgrwh~c4DUCsnKxjbxZKc3QEjovEdI~~brBG9Ud5whnOlmQm4geig__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Lion_predation_on_livestock_and_native_wildlife_in_Waza_National_Park_northern_Cameroon","translated_slug":"","page_count":5,"language":"en","content_type":"Work","owner":{"id":534684,"first_name":"Jacco","middle_initials":null,"last_name":"van Rijssel","page_name":"JaccovanRijssel","domain_name":"wageningen-ur","created_at":"2011-07-07T01:30:45.155-07:00","display_name":"Jacco van Rijssel","url":"https://wageningen-ur.academia.edu/JaccovanRijssel"},"attachments":[{"id":86638734,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/86638734/thumbnails/1.jpg","file_name":"Tumenta_et_al._2013.pdf","download_url":"https://www.academia.edu/attachments/86638734/download_file?st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Lion_predation_on_livestock_and_native_w.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/86638734/Tumenta_et_al._2013-libre.pdf?1653813266=\u0026response-content-disposition=attachment%3B+filename%3DLion_predation_on_livestock_and_native_w.pdf\u0026Expires=1733027989\u0026Signature=Y4Ktx172ROYRBoPdTdQ2VhEVe--zes4~xlP3O79QBmWLWXEK2GJDJ9UM-pPs3JtU8OOud1Jp7xX~YLDYmssHOEr4NuVCO7ifkaKtjqHvAnh9bguwdx2QYJDCMij~a3h7PzNOpEjd068l5dHo0pCeuJT6ZRjJBWxsSpuLS91YzT9Pp5Q9pHY0bhxJXGsEDzOiBKMDsG7oRDhlkW0vo5I2TVoQLkaav0PK6P~ofiXHTYw0yxKaiMb3tHf14qQ3FgTW7khufvZ9OWpGMhO-xK4mC7pXMIa7jTD0Yvgrwh~c4DUCsnKxjbxZKc3QEjovEdI~~brBG9Ud5whnOlmQm4geig__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":173,"name":"Zoology","url":"https://www.academia.edu/Documents/in/Zoology"},{"id":261,"name":"Geography","url":"https://www.academia.edu/Documents/in/Geography"},{"id":7710,"name":"Biology","url":"https://www.academia.edu/Documents/in/Biology"},{"id":55843,"name":"Mammalia","url":"https://www.academia.edu/Documents/in/Mammalia"},{"id":70099,"name":"Livestock","url":"https://www.academia.edu/Documents/in/Livestock"},{"id":88930,"name":"Predation","url":"https://www.academia.edu/Documents/in/Predation"},{"id":113579,"name":"Wildlife","url":"https://www.academia.edu/Documents/in/Wildlife"},{"id":284869,"name":"National Park","url":"https://www.academia.edu/Documents/in/National_Park"}],"urls":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="75592694"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/75592694/Habitat_related_birdsong_divergence_a_multi_level_study_on_the_influence_of_territory_density_and_ambient_noise_in_European_blackbirds"><img alt="Research paper thumbnail of Habitat-related birdsong divergence: a multi-level study on the influence of territory density and ambient noise in European blackbirds" class="work-thumbnail" src="https://attachments.academia-assets.com/83510400/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/75592694/Habitat_related_birdsong_divergence_a_multi_level_study_on_the_influence_of_territory_density_and_ambient_noise_in_European_blackbirds">Habitat-related birdsong divergence: a multi-level study on the influence of territory density and ambient noise in European blackbirds</a></div><div class="wp-workCard_item"><span>Behavioral Ecology and Sociobiology</span><span>, 2009</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="fa31973ea92d14a2cc89f16e42f546b2" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":83510400,"asset_id":75592694,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/83510400/download_file?st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="75592694"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="75592694"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 75592694; 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Habitat-related variation between populations in particular can reflect adaptations to the environment accumulated over generations, but this may not always be the case. In this study, we test whether variation between individuals matches local conditions with respect to noise level and territory density to examine whether short-term flexibility could contribute to song divergence at the population level. We conducted a case study on an urban and forest population of the European blackbird and show divergence at the population level (i.e. across habitats) in blackbird song, anthropogenic noise level and territory density. Unlike in several other species, we found a lack of any correlation at the individual level (i.e. across individuals) between song features and ambient noise. This suggests species-specific causal explanations for noisedependent song differentiation which are likely associated with variation in song-copying behaviour or feedback constraints related to variable singing styles. On the other hand, we found that at the level of individual territories, temporal features, but not spectral ones, are correlated to territory density and seasonality. This suggests that shortterm individual variation can indeed contribute to habitatdependent divergence at the population level. As this may undermine the potential role for song as a population marker, we conclude that more investigations on individual song flexibility are required for a better understanding of the impact of population-level song divergence on hybridisation and speciation.","publication_date":{"day":null,"month":null,"year":2009,"errors":{}},"publication_name":"Behavioral Ecology and Sociobiology","grobid_abstract_attachment_id":83510400},"translated_abstract":null,"internal_url":"https://www.academia.edu/75592694/Habitat_related_birdsong_divergence_a_multi_level_study_on_the_influence_of_territory_density_and_ambient_noise_in_European_blackbirds","translated_internal_url":"","created_at":"2022-04-05T23:05:32.559-07:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":534684,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":83510400,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/83510400/thumbnails/1.jpg","file_name":"Habitat-related_birdsong_divergence_a_mu20220408-28828-1jj5gcu.pdf","download_url":"https://www.academia.edu/attachments/83510400/download_file?st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Habitat_related_birdsong_divergence_a_mu.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/83510400/Habitat-related_birdsong_divergence_a_mu20220408-28828-1jj5gcu.pdf?1649471215=\u0026response-content-disposition=attachment%3B+filename%3DHabitat_related_birdsong_divergence_a_mu.pdf\u0026Expires=1733027989\u0026Signature=Z7Kg-eF5WU6FrYCD8M3Ee50h0g3M-DwrFoayqXdnyk6y33R7hUDhBGGlJSuJJASapzYzhVtdIecOFApPQoFyA-~aWxSEiolmp3PSgERK7td9Jl9D2JIfe6vjabJumftP~hm34P2TP6Zc0S5TU9~yjK4oTACtr~~27j003C3HlPwSuHeHWCDo5nlj4uDVedJOLYULIYOBfbNKG8WfBgWED1MrMdvsEDIl1831Ipn1yYbaRBtG3aZroF50nJDc0ILE~Z5MQZeHHMU~oK0o8TLs6qObqI46oYHok3QdGVyz1ZBFlLb9JVDd2Ft-WWk9vdWEpdYCoE6MJjVObslghTK0dw__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Habitat_related_birdsong_divergence_a_multi_level_study_on_the_influence_of_territory_density_and_ambient_noise_in_European_blackbirds","translated_slug":"","page_count":10,"language":"en","content_type":"Work","owner":{"id":534684,"first_name":"Jacco","middle_initials":null,"last_name":"van Rijssel","page_name":"JaccovanRijssel","domain_name":"wageningen-ur","created_at":"2011-07-07T01:30:45.155-07:00","display_name":"Jacco van Rijssel","url":"https://wageningen-ur.academia.edu/JaccovanRijssel"},"attachments":[{"id":83510400,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/83510400/thumbnails/1.jpg","file_name":"Habitat-related_birdsong_divergence_a_mu20220408-28828-1jj5gcu.pdf","download_url":"https://www.academia.edu/attachments/83510400/download_file?st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Habitat_related_birdsong_divergence_a_mu.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/83510400/Habitat-related_birdsong_divergence_a_mu20220408-28828-1jj5gcu.pdf?1649471215=\u0026response-content-disposition=attachment%3B+filename%3DHabitat_related_birdsong_divergence_a_mu.pdf\u0026Expires=1733027989\u0026Signature=Z7Kg-eF5WU6FrYCD8M3Ee50h0g3M-DwrFoayqXdnyk6y33R7hUDhBGGlJSuJJASapzYzhVtdIecOFApPQoFyA-~aWxSEiolmp3PSgERK7td9Jl9D2JIfe6vjabJumftP~hm34P2TP6Zc0S5TU9~yjK4oTACtr~~27j003C3HlPwSuHeHWCDo5nlj4uDVedJOLYULIYOBfbNKG8WfBgWED1MrMdvsEDIl1831Ipn1yYbaRBtG3aZroF50nJDc0ILE~Z5MQZeHHMU~oK0o8TLs6qObqI46oYHok3QdGVyz1ZBFlLb9JVDd2Ft-WWk9vdWEpdYCoE6MJjVObslghTK0dw__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":25730,"name":"Behavioral Ecology","url":"https://www.academia.edu/Documents/in/Behavioral_Ecology"},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences"},{"id":57433,"name":"Seasonality","url":"https://www.academia.edu/Documents/in/Seasonality"},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences"},{"id":96047,"name":"Case Study","url":"https://www.academia.edu/Documents/in/Case_Study"},{"id":198377,"name":"Individual variation","url":"https://www.academia.edu/Documents/in/Individual_variation"},{"id":2464435,"name":"Ambient Noise","url":"https://www.academia.edu/Documents/in/Ambient_Noise"}],"urls":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="74327573"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/74327573/Historical_Perspectives_and_Trends_in_Fisheries_Research_in_Tanzania"><img alt="Research paper thumbnail of Historical Perspectives and Trends in Fisheries Research in Tanzania" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/74327573/Historical_Perspectives_and_Trends_in_Fisheries_Research_in_Tanzania">Historical Perspectives and Trends in Fisheries Research in Tanzania</a></div><div class="wp-workCard_item"><span>Lake Victoria Fisheries Resources</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">This chapter traces the history and trends in fisheries research for the Tanzanian part of Lake V...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">This chapter traces the history and trends in fisheries research for the Tanzanian part of Lake Victoria and its basin back to the late nineteenth century when the haplochromine species were scientifically identified for the first time. Past studies in the early to mid-twentieth century were mainly designed to address issues related to the introduced species and the abundant haplochromines. Subsequent studies in the late twentieth to early twenty-first centuries integrated multiple disciplines such as fish biology, ecology, biodiversity, limnology, socio-economics and aquaculture. In the late 1990s and early 2000s, lake-wide research projects played a key role in further understanding of the lake-basin flora, fauna and related fisheries. Over the last half century, Lake Victoria has undergone dramatic ecosystem changes, partly driven by the introduction of the predatory Nile perch and the non-indigenous tilapiine species in the 1950s and early 1960s. The profound ecosystem transformation of the lake has also been attributed to cultural eutrophication, climatic variability and over-fishing. In the mid-1950s, the lake had a diverse fish fauna, which was thought to comprise about 29 genera and more than 650 species, with the haplochromines forming about 80% of the demersal fish stocks. Later discoveries in the early 1970s to the late 1990s confirmed that the haplochromine group alone consisted of over 500 endemic species. The introduction of the Nile perch was meant to utilize the abundant haplochromines that were considered commercially unimportant, and to extend fishing operations from the inshore to deeper offshore waters.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="74327573"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="74327573"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 74327573; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=74327573]").text(description); $(".js-view-count[data-work-id=74327573]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 74327573; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='74327573']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 74327573, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=74327573]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":74327573,"title":"Historical Perspectives and Trends in Fisheries Research in Tanzania","translated_title":"","metadata":{"abstract":"This chapter traces the history and trends in fisheries research for the Tanzanian part of Lake Victoria and its basin back to the late nineteenth century when the haplochromine species were scientifically identified for the first time. Past studies in the early to mid-twentieth century were mainly designed to address issues related to the introduced species and the abundant haplochromines. Subsequent studies in the late twentieth to early twenty-first centuries integrated multiple disciplines such as fish biology, ecology, biodiversity, limnology, socio-economics and aquaculture. In the late 1990s and early 2000s, lake-wide research projects played a key role in further understanding of the lake-basin flora, fauna and related fisheries. Over the last half century, Lake Victoria has undergone dramatic ecosystem changes, partly driven by the introduction of the predatory Nile perch and the non-indigenous tilapiine species in the 1950s and early 1960s. The profound ecosystem transformation of the lake has also been attributed to cultural eutrophication, climatic variability and over-fishing. In the mid-1950s, the lake had a diverse fish fauna, which was thought to comprise about 29 genera and more than 650 species, with the haplochromines forming about 80% of the demersal fish stocks. Later discoveries in the early 1970s to the late 1990s confirmed that the haplochromine group alone consisted of over 500 endemic species. The introduction of the Nile perch was meant to utilize the abundant haplochromines that were considered commercially unimportant, and to extend fishing operations from the inshore to deeper offshore waters.","publisher":"Springer International Publishing","publication_name":"Lake Victoria Fisheries Resources"},"translated_abstract":"This chapter traces the history and trends in fisheries research for the Tanzanian part of Lake Victoria and its basin back to the late nineteenth century when the haplochromine species were scientifically identified for the first time. Past studies in the early to mid-twentieth century were mainly designed to address issues related to the introduced species and the abundant haplochromines. Subsequent studies in the late twentieth to early twenty-first centuries integrated multiple disciplines such as fish biology, ecology, biodiversity, limnology, socio-economics and aquaculture. In the late 1990s and early 2000s, lake-wide research projects played a key role in further understanding of the lake-basin flora, fauna and related fisheries. Over the last half century, Lake Victoria has undergone dramatic ecosystem changes, partly driven by the introduction of the predatory Nile perch and the non-indigenous tilapiine species in the 1950s and early 1960s. The profound ecosystem transformation of the lake has also been attributed to cultural eutrophication, climatic variability and over-fishing. In the mid-1950s, the lake had a diverse fish fauna, which was thought to comprise about 29 genera and more than 650 species, with the haplochromines forming about 80% of the demersal fish stocks. Later discoveries in the early 1970s to the late 1990s confirmed that the haplochromine group alone consisted of over 500 endemic species. The introduction of the Nile perch was meant to utilize the abundant haplochromines that were considered commercially unimportant, and to extend fishing operations from the inshore to deeper offshore waters.","internal_url":"https://www.academia.edu/74327573/Historical_Perspectives_and_Trends_in_Fisheries_Research_in_Tanzania","translated_internal_url":"","created_at":"2022-03-22T13:04:08.528-07:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":534684,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[],"slug":"Historical_Perspectives_and_Trends_in_Fisheries_Research_in_Tanzania","translated_slug":"","page_count":null,"language":"en","content_type":"Work","owner":{"id":534684,"first_name":"Jacco","middle_initials":null,"last_name":"van Rijssel","page_name":"JaccovanRijssel","domain_name":"wageningen-ur","created_at":"2011-07-07T01:30:45.155-07:00","display_name":"Jacco van Rijssel","url":"https://wageningen-ur.academia.edu/JaccovanRijssel"},"attachments":[],"research_interests":[{"id":261,"name":"Geography","url":"https://www.academia.edu/Documents/in/Geography"},{"id":4711,"name":"Fisheries","url":"https://www.academia.edu/Documents/in/Fisheries"},{"id":10001,"name":"Fisheries Management","url":"https://www.academia.edu/Documents/in/Fisheries_Management"},{"id":26181,"name":"Eutrophication","url":"https://www.academia.edu/Documents/in/Eutrophication"},{"id":216604,"name":"Cichlidae","url":"https://www.academia.edu/Documents/in/Cichlidae"},{"id":332276,"name":"Tilapia","url":"https://www.academia.edu/Documents/in/Tilapia"},{"id":348966,"name":"Lake Victoria","url":"https://www.academia.edu/Documents/in/Lake_Victoria"},{"id":613425,"name":"Nile Perch","url":"https://www.academia.edu/Documents/in/Nile_Perch"},{"id":845700,"name":"lake Victoria cichlids","url":"https://www.academia.edu/Documents/in/lake_Victoria_cichlids"}],"urls":[{"id":18713179,"url":"http://link.springer.com/content/pdf/10.1007/978-3-319-69656-0_2"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="74327572"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/74327572/The_origin_and_future_of_an_endangered_crater_lake_endemic_phylogeography_and_ecology_of_Oreochromis_hunteri_and_its_invasive_relatives"><img alt="Research paper thumbnail of The origin and future of an endangered crater lake endemic; phylogeography and ecology of Oreochromis hunteri and its invasive relatives" class="work-thumbnail" src="https://attachments.academia-assets.com/82518301/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/74327572/The_origin_and_future_of_an_endangered_crater_lake_endemic_phylogeography_and_ecology_of_Oreochromis_hunteri_and_its_invasive_relatives">The origin and future of an endangered crater lake endemic; phylogeography and ecology of Oreochromis hunteri and its invasive relatives</a></div><div class="wp-workCard_item"><span>Hydrobiologia</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="62fe0e18800f2ffbd5faac1b2826dc75" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":82518301,"asset_id":74327572,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/82518301/download_file?st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="74327572"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="74327572"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 74327572; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=74327572]").text(description); $(".js-view-count[data-work-id=74327572]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 74327572; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='74327572']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 74327572, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "62fe0e18800f2ffbd5faac1b2826dc75" } } $('.js-work-strip[data-work-id=74327572]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":74327572,"title":"The origin and future of an endangered crater lake endemic; phylogeography and ecology of Oreochromis hunteri and its invasive relatives","translated_title":"","metadata":{"publisher":"Springer Nature","grobid_abstract":"Cichlids of the genus Oreochromis (\"Tilapias\") are intensively used in aquaculture around the world. In many cases when \"Tilapia\" were introduced for economic reasons to catchments that were home to other, often endemic, Oreochromis species, the loss of native species followed. Oreochromis hunteri is an endemic species of Crater Lake Chala on the slopes of Mount Kilimanjaro, and is part of a small species flock in the upper Pangani drainage system of Tanzania. We identified three native and three invasive Oreochromis species in the region. Reconstructing their phylogeography we found that O. hunteri is closely related to, but distinct from the other members of the upper Pangani flock. However, we found a second, genetically and phenotypically distinct Oreochromis species in Lake Chala whose origin we cannot fully resolve. Our ecological and ecomorphological investigations revealed that the endemic O. hunteri is currently rare in the lake, outnumbered by each of three invasive cichlid species. It is mitochondrially, phenotypically and trophically distinct from all others. The occurrence of the formerly abundant O. hunteri in such small numbers, its narrow habitat restriction and its limited morphological variability suggest recent population decline and loss of niche breadth in this critically endangered endemic cichlid 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diversification 50 years after colonization of a crater lake by haplochromine cichlid fishes" class="work-thumbnail" src="https://attachments.academia-assets.com/82518300/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/74327571/The_onset_of_ecological_diversification_50_years_after_colonization_of_a_crater_lake_by_haplochromine_cichlid_fishes">The onset of ecological diversification 50 years after colonization of a crater lake by haplochromine cichlid fishes</a></div><div class="wp-workCard_item"><span>Proceedings. Biological sciences</span><span>, Jan 15, 2018</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Adaptive radiation research typically relies on the study of evolution in retrospective, leaving ...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Adaptive radiation research typically relies on the study of evolution in retrospective, leaving the predictive value of the concept hard to evaluate. Several radiations, including the cichlid fishes in the East African Great Lakes, have been studied extensively, yet no study has investigated the onset of the intraspecific processes of niche expansion and differentiation shortly after colonization of an adaptive zone by cichlids. Haplochromine cichlids of one of the two lineages that seeded the Lake Victoria radiation recently arrived in Lake Chala, a lake perfectly suited for within-lake cichlid speciation. Here, we infer the colonization and demographic history, quantify phenotypic, ecological and genomic diversity and diversification, and investigate the selection regime to ask if the population shows signs of diversification resembling the onset of adaptive radiation. We find that since their arrival in the lake, haplochromines have colonized a wide range of depth habitats assoc...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="d02984408438f5d877dff3673ca08a71" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":82518300,"asset_id":74327571,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/82518300/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="74327571"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="74327571"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 74327571; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=74327571]").text(description); $(".js-view-count[data-work-id=74327571]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 74327571; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='74327571']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 74327571, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "d02984408438f5d877dff3673ca08a71" } } $('.js-work-strip[data-work-id=74327571]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":74327571,"title":"The onset of ecological diversification 50 years after colonization of a crater lake by haplochromine cichlid fishes","translated_title":"","metadata":{"abstract":"Adaptive radiation research typically relies on the study of evolution in retrospective, leaving the predictive value of the concept hard to evaluate. Several radiations, including the cichlid fishes in the East African Great Lakes, have been studied extensively, yet no study has investigated the onset of the intraspecific processes of niche expansion and differentiation shortly after colonization of an adaptive zone by cichlids. Haplochromine cichlids of one of the two lineages that seeded the Lake Victoria radiation recently arrived in Lake Chala, a lake perfectly suited for within-lake cichlid speciation. Here, we infer the colonization and demographic history, quantify phenotypic, ecological and genomic diversity and diversification, and investigate the selection regime to ask if the population shows signs of diversification resembling the onset of adaptive radiation. We find that since their arrival in the lake, haplochromines have colonized a wide range of depth habitats assoc...","publication_date":{"day":15,"month":1,"year":2018,"errors":{}},"publication_name":"Proceedings. Biological sciences"},"translated_abstract":"Adaptive radiation research typically relies on the study of evolution in retrospective, leaving the predictive value of the concept hard to evaluate. Several radiations, including the cichlid fishes in the East African Great Lakes, have been studied extensively, yet no study has investigated the onset of the intraspecific processes of niche expansion and differentiation shortly after colonization of an adaptive zone by cichlids. Haplochromine cichlids of one of the two lineages that seeded the Lake Victoria radiation recently arrived in Lake Chala, a lake perfectly suited for within-lake cichlid speciation. Here, we infer the colonization and demographic history, quantify phenotypic, ecological and genomic diversity and diversification, and investigate the selection regime to ask if the population shows signs of diversification resembling the onset of adaptive radiation. We find that since their arrival in the lake, haplochromines have colonized a wide range of depth habitats assoc...","internal_url":"https://www.academia.edu/74327571/The_onset_of_ecological_diversification_50_years_after_colonization_of_a_crater_lake_by_haplochromine_cichlid_fishes","translated_internal_url":"","created_at":"2022-03-22T13:04:08.159-07:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":534684,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":82518300,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/82518300/thumbnails/1.jpg","file_name":"rspb.2018.pdf","download_url":"https://www.academia.edu/attachments/82518300/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"The_onset_of_ecological_diversification.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/82518300/rspb.2018-libre.pdf?1647980132=\u0026response-content-disposition=attachment%3B+filename%3DThe_onset_of_ecological_diversification.pdf\u0026Expires=1733027989\u0026Signature=f-E5O-tLB26xYXm2VdXWAWvl0BpAjSjLaV8vLCms5JjfTPXTAhUKNv9Je3pu7~DedGzo3JH7Sj2wHie2GpWmYDbqWrCFpCYs01pcZtbFieK2agvZHzzXUSTTUkCDL6Qd4mRWhfoJnwtFq0K6heYjBC99CH36DXR2KDf3736lwF1PzT8wUS2A9a-7ukaf7NXgvNMK8ObPe9s1WuZfaQNzXlZcy2hIL1oNfhlS96N~v~uho1x~PhktcHFgtnhS7EdM5xoZqahswIyMBn1Ly27q0utuoA8yP9~ceL7Xf-5MXhEcDhtG6ccKkGkGbv91gu3ja0YCzRWJTeUCvD~SIx287A__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"The_onset_of_ecological_diversification_50_years_after_colonization_of_a_crater_lake_by_haplochromine_cichlid_fishes","translated_slug":"","page_count":10,"language":"en","content_type":"Work","owner":{"id":534684,"first_name":"Jacco","middle_initials":null,"last_name":"van Rijssel","page_name":"JaccovanRijssel","domain_name":"wageningen-ur","created_at":"2011-07-07T01:30:45.155-07:00","display_name":"Jacco van Rijssel","url":"https://wageningen-ur.academia.edu/JaccovanRijssel"},"attachments":[{"id":82518300,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/82518300/thumbnails/1.jpg","file_name":"rspb.2018.pdf","download_url":"https://www.academia.edu/attachments/82518300/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"The_onset_of_ecological_diversification.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/82518300/rspb.2018-libre.pdf?1647980132=\u0026response-content-disposition=attachment%3B+filename%3DThe_onset_of_ecological_diversification.pdf\u0026Expires=1733027989\u0026Signature=f-E5O-tLB26xYXm2VdXWAWvl0BpAjSjLaV8vLCms5JjfTPXTAhUKNv9Je3pu7~DedGzo3JH7Sj2wHie2GpWmYDbqWrCFpCYs01pcZtbFieK2agvZHzzXUSTTUkCDL6Qd4mRWhfoJnwtFq0K6heYjBC99CH36DXR2KDf3736lwF1PzT8wUS2A9a-7ukaf7NXgvNMK8ObPe9s1WuZfaQNzXlZcy2hIL1oNfhlS96N~v~uho1x~PhktcHFgtnhS7EdM5xoZqahswIyMBn1Ly27q0utuoA8yP9~ceL7Xf-5MXhEcDhtG6ccKkGkGbv91gu3ja0YCzRWJTeUCvD~SIx287A__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":3216,"name":"Genomics","url":"https://www.academia.edu/Documents/in/Genomics"},{"id":7710,"name":"Biology","url":"https://www.academia.edu/Documents/in/Biology"},{"id":9846,"name":"Ecology","url":"https://www.academia.edu/Documents/in/Ecology"},{"id":10866,"name":"Morphology","url":"https://www.academia.edu/Documents/in/Morphology"},{"id":10882,"name":"Evolution","url":"https://www.academia.edu/Documents/in/Evolution"},{"id":18594,"name":"Evolutionary Ecology","url":"https://www.academia.edu/Documents/in/Evolutionary_Ecology"},{"id":26327,"name":"Medicine","url":"https://www.academia.edu/Documents/in/Medicine"},{"id":40422,"name":"Natural Selection","url":"https://www.academia.edu/Documents/in/Natural_Selection"},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences"},{"id":60960,"name":"Adaptive Radiation","url":"https://www.academia.edu/Documents/in/Adaptive_Radiation"},{"id":216604,"name":"Cichlidae","url":"https://www.academia.edu/Documents/in/Cichlidae"},{"id":241716,"name":"Incipient Speciation","url":"https://www.academia.edu/Documents/in/Incipient_Speciation"},{"id":1129239,"name":"Crater Lakes","url":"https://www.academia.edu/Documents/in/Crater_Lakes"},{"id":1285919,"name":"Fitness Landscapes","url":"https://www.academia.edu/Documents/in/Fitness_Landscapes"},{"id":1303941,"name":"Disruptive Selection","url":"https://www.academia.edu/Documents/in/Disruptive_Selection"},{"id":3763225,"name":"Medical and Health Sciences","url":"https://www.academia.edu/Documents/in/Medical_and_Health_Sciences"}],"urls":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="74327570"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/74327570/Prevalence_of_disruptive_selection_predicts_extent_of_species_differentiation_in_Lake_Victoria_cichlids"><img alt="Research paper thumbnail of Prevalence of disruptive selection predicts extent of species differentiation in Lake Victoria cichlids" class="work-thumbnail" src="https://attachments.academia-assets.com/82518299/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/74327570/Prevalence_of_disruptive_selection_predicts_extent_of_species_differentiation_in_Lake_Victoria_cichlids">Prevalence of disruptive selection predicts extent of species differentiation in Lake Victoria cichlids</a></div><div class="wp-workCard_item"><span>Proceedings. Biological sciences</span><span>, Jan 31, 2018</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Theory suggests that speciation with gene flow is most likely when both sexual and ecological sel...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Theory suggests that speciation with gene flow is most likely when both sexual and ecological selection are divergent or disruptive. Divergent sexual and natural selection on the visual system have been demonstrated before in sympatric, morphologically similar sister species of Lake Victoria cichlids, but this does not explain the subtle morphological differences between them. To investigate the significance of natural selection on morphology during speciation, we here ask whether the prevalence of disruptive ecological selection differs between sympatric sister species that are at different stages of speciation. Some of our species pairs do () and others do not () differ distinctively in sexually selected male nuptial coloration. We find that (i) evidence for disruptive selection, and for evolutionary response to it, is prevalent in traits that are differentiated between sister species; (ii) prevalence of both predicts the extent of genetic differentiation; and (iii) genetic differ...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="199949f35ca18726194370e440b38867" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":82518299,"asset_id":74327570,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/82518299/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="74327570"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="74327570"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 74327570; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=74327570]").text(description); $(".js-view-count[data-work-id=74327570]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 74327570; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='74327570']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 74327570, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "199949f35ca18726194370e440b38867" } } $('.js-work-strip[data-work-id=74327570]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":74327570,"title":"Prevalence of disruptive selection predicts extent of species differentiation in Lake Victoria cichlids","translated_title":"","metadata":{"abstract":"Theory suggests that speciation with gene flow is most likely when both sexual and ecological selection are divergent or disruptive. Divergent sexual and natural selection on the visual system have been demonstrated before in sympatric, morphologically similar sister species of Lake Victoria cichlids, but this does not explain the subtle morphological differences between them. To investigate the significance of natural selection on morphology during speciation, we here ask whether the prevalence of disruptive ecological selection differs between sympatric sister species that are at different stages of speciation. Some of our species pairs do () and others do not () differ distinctively in sexually selected male nuptial coloration. We find that (i) evidence for disruptive selection, and for evolutionary response to it, is prevalent in traits that are differentiated between sister species; (ii) prevalence of both predicts the extent of genetic differentiation; and (iii) genetic differ...","publication_date":{"day":31,"month":1,"year":2018,"errors":{}},"publication_name":"Proceedings. Biological sciences"},"translated_abstract":"Theory suggests that speciation with gene flow is most likely when both sexual and ecological selection are divergent or disruptive. Divergent sexual and natural selection on the visual system have been demonstrated before in sympatric, morphologically similar sister species of Lake Victoria cichlids, but this does not explain the subtle morphological differences between them. To investigate the significance of natural selection on morphology during speciation, we here ask whether the prevalence of disruptive ecological selection differs between sympatric sister species that are at different stages of speciation. Some of our species pairs do () and others do not () differ distinctively in sexually selected male nuptial coloration. We find that (i) evidence for disruptive selection, and for evolutionary response to it, is prevalent in traits that are differentiated between sister species; (ii) prevalence of both predicts the extent of genetic differentiation; and (iii) genetic differ...","internal_url":"https://www.academia.edu/74327570/Prevalence_of_disruptive_selection_predicts_extent_of_species_differentiation_in_Lake_Victoria_cichlids","translated_internal_url":"","created_at":"2022-03-22T13:04:08.017-07:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":534684,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":82518299,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/82518299/thumbnails/1.jpg","file_name":"rspb.2017.pdf","download_url":"https://www.academia.edu/attachments/82518299/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Prevalence_of_disruptive_selection_predi.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/82518299/rspb.2017-libre.pdf?1647980133=\u0026response-content-disposition=attachment%3B+filename%3DPrevalence_of_disruptive_selection_predi.pdf\u0026Expires=1733027990\u0026Signature=LOQ9mkZr~Py5n7lyvx9CTDh0gg2cBFFeaip~EJmSKFRJsjOm5-tCqPsZ6C2Q2E4AOdWA6EtlQPlUBad8wgDh7pNUHxFTQyJwbsPUNTmFjQOox8HgZlN7k2p6koP8-8xagOrjZuNirz8G46fsxu89HHshpkpCUz0~Srr3q7XI9n1ERLKNyuODhd4Ir8vj4TjMlorIPOUNar0tYwkp3oCPKq79JdoMPCSf2xcbFNCWAeieJnbHURIbb43QthJq5FbUekmj0yfrIaI7qD0f5RUZFwngGNe4atYUWF6nGoD83FtIZLIN-~y6MGznKlVTN0ToZkOsp99ObeBcqavbxdQCoQ__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Prevalence_of_disruptive_selection_predicts_extent_of_species_differentiation_in_Lake_Victoria_cichlids","translated_slug":"","page_count":10,"language":"en","content_type":"Work","owner":{"id":534684,"first_name":"Jacco","middle_initials":null,"last_name":"van Rijssel","page_name":"JaccovanRijssel","domain_name":"wageningen-ur","created_at":"2011-07-07T01:30:45.155-07:00","display_name":"Jacco van Rijssel","url":"https://wageningen-ur.academia.edu/JaccovanRijssel"},"attachments":[{"id":82518299,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/82518299/thumbnails/1.jpg","file_name":"rspb.2017.pdf","download_url":"https://www.academia.edu/attachments/82518299/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Prevalence_of_disruptive_selection_predi.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/82518299/rspb.2017-libre.pdf?1647980133=\u0026response-content-disposition=attachment%3B+filename%3DPrevalence_of_disruptive_selection_predi.pdf\u0026Expires=1733027990\u0026Signature=LOQ9mkZr~Py5n7lyvx9CTDh0gg2cBFFeaip~EJmSKFRJsjOm5-tCqPsZ6C2Q2E4AOdWA6EtlQPlUBad8wgDh7pNUHxFTQyJwbsPUNTmFjQOox8HgZlN7k2p6koP8-8xagOrjZuNirz8G46fsxu89HHshpkpCUz0~Srr3q7XI9n1ERLKNyuODhd4Ir8vj4TjMlorIPOUNar0tYwkp3oCPKq79JdoMPCSf2xcbFNCWAeieJnbHURIbb43QthJq5FbUekmj0yfrIaI7qD0f5RUZFwngGNe4atYUWF6nGoD83FtIZLIN-~y6MGznKlVTN0ToZkOsp99ObeBcqavbxdQCoQ__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":4310,"name":"Speciation","url":"https://www.academia.edu/Documents/in/Speciation"},{"id":4313,"name":"Gene Flow","url":"https://www.academia.edu/Documents/in/Gene_Flow"},{"id":7044,"name":"Sexual Selection","url":"https://www.academia.edu/Documents/in/Sexual_Selection"},{"id":10866,"name":"Morphology","url":"https://www.academia.edu/Documents/in/Morphology"},{"id":40422,"name":"Natural Selection","url":"https://www.academia.edu/Documents/in/Natural_Selection"},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences"},{"id":216604,"name":"Cichlidae","url":"https://www.academia.edu/Documents/in/Cichlidae"},{"id":280861,"name":"Character Displacement","url":"https://www.academia.edu/Documents/in/Character_Displacement"},{"id":319956,"name":"Genetic Differentiation","url":"https://www.academia.edu/Documents/in/Genetic_Differentiation"},{"id":348966,"name":"Lake Victoria","url":"https://www.academia.edu/Documents/in/Lake_Victoria"},{"id":1285919,"name":"Fitness Landscapes","url":"https://www.academia.edu/Documents/in/Fitness_Landscapes"},{"id":1303941,"name":"Disruptive Selection","url":"https://www.academia.edu/Documents/in/Disruptive_Selection"},{"id":3763225,"name":"Medical and Health Sciences","url":"https://www.academia.edu/Documents/in/Medical_and_Health_Sciences"}],"urls":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="74327569"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/74327569/Oil_extraction_imperils_Africas_Great_Lakes"><img alt="Research paper thumbnail of Oil extraction imperils Africa's Great Lakes" class="work-thumbnail" src="https://attachments.academia-assets.com/82518297/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/74327569/Oil_extraction_imperils_Africas_Great_Lakes">Oil extraction imperils Africa's Great Lakes</a></div><div class="wp-workCard_item"><span>Science</span><span>, 2016</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="03b02b3adeeaa7f2fc498c33073d54cc" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":82518297,"asset_id":74327569,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/82518297/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="74327569"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="74327569"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 74327569; 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="74327568"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/74327568/Climatic_variability_in_combination_with_eutrophication_drives_adaptive_responses_in_the_gills_of_Lake_Victoria_cichlids"><img alt="Research paper thumbnail of Climatic variability in combination with eutrophication drives adaptive responses in the gills of Lake Victoria cichlids" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/74327568/Climatic_variability_in_combination_with_eutrophication_drives_adaptive_responses_in_the_gills_of_Lake_Victoria_cichlids">Climatic variability in combination with eutrophication drives adaptive responses in the gills of Lake Victoria cichlids</a></div><div class="wp-workCard_item"><span>Oecologia</span><span>, 2016</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Textbook examples of adaptive radiation often show rapid morphological changes in response to env...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Textbook examples of adaptive radiation often show rapid morphological changes in response to environmental perturbations. East Africa&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s Lake Victoria, famous for its stunning adaptive radiation of cichlids, has suffered from human-induced eutrophication over the past decades. This cultural eutrophication is thought to be partly responsible for the dramatically reduced cichlid biodiversity, but climatic variability in itself might also have contributed to the eutrophication which resulted in low oxygen levels and decreased water transparency. To determine how recent environmental changes have influenced the lake and its cichlids over the past 50 years, we gathered environmental and meteorological variables and compared these with gill surface area of four cichlid species. We found that during the period of severe eutrophication and temperature increase (1980s), reduced wind speeds coincided with a reduction in oxygen levels and a decrease in both water temperature and transparency. The gill surface area in three out of the four cichlid species increased during this period which is consistent with adaptive change in response to increased hypoxia. During the 2000s, wind speeds, oxygen levels, water transparency and water temperature increased again, while cichlid gill surface area decreased. Our results imply that climatic changes and especially wind speed and direction might play a crucial role in tropical lake dynamics. The changes in Lake Victoria&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s water quality coincide with fluctuations in cichlid gill surface area, suggesting that these fish can respond rapidly to environmental perturbations, but also that climatic variability, together with continued eutrophication, might be detrimental to the lake&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s cichlid biodiversity.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="74327568"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="74327568"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 74327568; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=74327568]").text(description); $(".js-view-count[data-work-id=74327568]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 74327568; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='74327568']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 74327568, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=74327568]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":74327568,"title":"Climatic variability in combination with eutrophication drives adaptive responses in the gills of Lake Victoria cichlids","translated_title":"","metadata":{"abstract":"Textbook examples of adaptive radiation often show rapid morphological changes in response to environmental perturbations. East Africa\u0026amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s Lake Victoria, famous for its stunning adaptive radiation of cichlids, has suffered from human-induced eutrophication over the past decades. This cultural eutrophication is thought to be partly responsible for the dramatically reduced cichlid biodiversity, but climatic variability in itself might also have contributed to the eutrophication which resulted in low oxygen levels and decreased water transparency. To determine how recent environmental changes have influenced the lake and its cichlids over the past 50 years, we gathered environmental and meteorological variables and compared these with gill surface area of four cichlid species. We found that during the period of severe eutrophication and temperature increase (1980s), reduced wind speeds coincided with a reduction in oxygen levels and a decrease in both water temperature and transparency. The gill surface area in three out of the four cichlid species increased during this period which is consistent with adaptive change in response to increased hypoxia. During the 2000s, wind speeds, oxygen levels, water transparency and water temperature increased again, while cichlid gill surface area decreased. Our results imply that climatic changes and especially wind speed and direction might play a crucial role in tropical lake dynamics. The changes in Lake Victoria\u0026amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s water quality coincide with fluctuations in cichlid gill surface area, suggesting that these fish can respond rapidly to environmental perturbations, but also that climatic variability, together with continued eutrophication, might be detrimental to the lake\u0026amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s cichlid biodiversity.","publisher":"Springer Nature","publication_date":{"day":null,"month":null,"year":2016,"errors":{}},"publication_name":"Oecologia"},"translated_abstract":"Textbook examples of adaptive radiation often show rapid morphological changes in response to environmental perturbations. East Africa\u0026amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s Lake Victoria, famous for its stunning adaptive radiation of cichlids, has suffered from human-induced eutrophication over the past decades. This cultural eutrophication is thought to be partly responsible for the dramatically reduced cichlid biodiversity, but climatic variability in itself might also have contributed to the eutrophication which resulted in low oxygen levels and decreased water transparency. To determine how recent environmental changes have influenced the lake and its cichlids over the past 50 years, we gathered environmental and meteorological variables and compared these with gill surface area of four cichlid species. We found that during the period of severe eutrophication and temperature increase (1980s), reduced wind speeds coincided with a reduction in oxygen levels and a decrease in both water temperature and transparency. The gill surface area in three out of the four cichlid species increased during this period which is consistent with adaptive change in response to increased hypoxia. During the 2000s, wind speeds, oxygen levels, water transparency and water temperature increased again, while cichlid gill surface area decreased. Our results imply that climatic changes and especially wind speed and direction might play a crucial role in tropical lake dynamics. The changes in Lake Victoria\u0026amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s water quality coincide with fluctuations in cichlid gill surface area, suggesting that these fish can respond rapidly to environmental perturbations, but also that climatic variability, together with continued eutrophication, might be detrimental to the lake\u0026amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s cichlid biodiversity.","internal_url":"https://www.academia.edu/74327568/Climatic_variability_in_combination_with_eutrophication_drives_adaptive_responses_in_the_gills_of_Lake_Victoria_cichlids","translated_internal_url":"","created_at":"2022-03-22T13:04:07.748-07:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":534684,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[],"slug":"Climatic_variability_in_combination_with_eutrophication_drives_adaptive_responses_in_the_gills_of_Lake_Victoria_cichlids","translated_slug":"","page_count":null,"language":"en","content_type":"Work","owner":{"id":534684,"first_name":"Jacco","middle_initials":null,"last_name":"van Rijssel","page_name":"JaccovanRijssel","domain_name":"wageningen-ur","created_at":"2011-07-07T01:30:45.155-07:00","display_name":"Jacco van Rijssel","url":"https://wageningen-ur.academia.edu/JaccovanRijssel"},"attachments":[],"research_interests":[{"id":1512,"name":"Climate Change","url":"https://www.academia.edu/Documents/in/Climate_Change"},{"id":7710,"name":"Biology","url":"https://www.academia.edu/Documents/in/Biology"},{"id":9846,"name":"Ecology","url":"https://www.academia.edu/Documents/in/Ecology"},{"id":10990,"name":"Hypoxia","url":"https://www.academia.edu/Documents/in/Hypoxia"},{"id":17825,"name":"Biodiversity","url":"https://www.academia.edu/Documents/in/Biodiversity"},{"id":26181,"name":"Eutrophication","url":"https://www.academia.edu/Documents/in/Eutrophication"},{"id":26327,"name":"Medicine","url":"https://www.academia.edu/Documents/in/Medicine"},{"id":53652,"name":"Lakes","url":"https://www.academia.edu/Documents/in/Lakes"},{"id":195089,"name":"Cichlids","url":"https://www.academia.edu/Documents/in/Cichlids"},{"id":216604,"name":"Cichlidae","url":"https://www.academia.edu/Documents/in/Cichlidae"},{"id":223041,"name":"Oecologia","url":"https://www.academia.edu/Documents/in/Oecologia"},{"id":233558,"name":"Microevolution","url":"https://www.academia.edu/Documents/in/Microevolution"},{"id":348966,"name":"Lake Victoria","url":"https://www.academia.edu/Documents/in/Lake_Victoria"},{"id":462837,"name":"Gills","url":"https://www.academia.edu/Documents/in/Gills"},{"id":764245,"name":"Adaptive Response","url":"https://www.academia.edu/Documents/in/Adaptive_Response"},{"id":845700,"name":"lake Victoria cichlids","url":"https://www.academia.edu/Documents/in/lake_Victoria_cichlids"},{"id":1002090,"name":"Climatic Variability","url":"https://www.academia.edu/Documents/in/Climatic_Variability"}],"urls":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="74327567"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/74327567/Stable_isotope_evidence_from_formalin_ethanol_preserved_specimens_indicates_dietary_shifts_and_increasing_diet_overlap_in_Lake_Victoria_cichlids"><img alt="Research paper thumbnail of Stable isotope evidence from formalin–ethanol-preserved specimens indicates dietary shifts and increasing diet overlap in Lake Victoria cichlids" class="work-thumbnail" src="https://attachments.academia-assets.com/82518298/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/74327567/Stable_isotope_evidence_from_formalin_ethanol_preserved_specimens_indicates_dietary_shifts_and_increasing_diet_overlap_in_Lake_Victoria_cichlids">Stable isotope evidence from formalin–ethanol-preserved specimens indicates dietary shifts and increasing diet overlap in Lake Victoria cichlids</a></div><div class="wp-workCard_item"><span>Hydrobiologia</span><span>, 2016</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="77afe35f69709d71c4b23dacbe78a265" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":82518298,"asset_id":74327567,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/82518298/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="74327567"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="74327567"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 74327567; 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dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "77afe35f69709d71c4b23dacbe78a265" } } $('.js-work-strip[data-work-id=74327567]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":74327567,"title":"Stable isotope evidence from formalin–ethanol-preserved specimens indicates dietary shifts and increasing diet overlap in Lake Victoria cichlids","translated_title":"","metadata":{"publisher":"Springer Nature","grobid_abstract":"Stable isotopes are increasingly being used to infer past and present trophic interactions in light of environmental changes. The Lake Victoria haplochromine cichlids have experienced severe environmental changes in the past decades that, amongst others, resulted in a dietary shift towards larger prey. We investigated how the changed environment and diet of the haplochromines influenced stable isotope values of formalin-then-ethanol-preserved cichlid specimens, and then investigated how these values differed among species before (1977-1982) and after substantial environmental changes (2005-2007). We found a small preservation effect on both d 13 C and d 15 N values, and significant differences in isotope values among haplochromine species collected before the environmental changes. In contrast, there was a remarkable similarity in d 13 C and d 15 N values among species collected from the contemporary ecosystem and two out three species showed significantly different stable isotope values compared to species of the historic ecosystem. In addition, we found a putative isotopic gradient effect along our 5-km-long research transect indicating that the studied demersal species are more stenotopic than previously thought. The environmental changes have resulted in dietary change and overlap of the haplochromines which provides insight into the trophic plasticity of these species, which are often considered trophic specialists. Keywords Detritivores Á Environmental changes Á Phytoplanktivores Á Stenotopic Á Trophic guild Á Zooplanktivores Mary A. Kishe-Machumu and Jacco C. van Rijssel contributed equally to this paper.","publication_date":{"day":null,"month":null,"year":2016,"errors":{}},"publication_name":"Hydrobiologia","grobid_abstract_attachment_id":82518298},"translated_abstract":null,"internal_url":"https://www.academia.edu/74327567/Stable_isotope_evidence_from_formalin_ethanol_preserved_specimens_indicates_dietary_shifts_and_increasing_diet_overlap_in_Lake_Victoria_cichlids","translated_internal_url":"","created_at":"2022-03-22T13:04:07.625-07:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":534684,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":82518298,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/82518298/thumbnails/1.jpg","file_name":"Kishe-Machumu-2017-Stable_isotope_evidence_from_formalin_E2_80_93ethanol-preserved-published_version.pdf","download_url":"https://www.academia.edu/attachments/82518298/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Stable_isotope_evidence_from_formalin_et.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/82518298/Kishe-Machumu-2017-Stable_isotope_evidence_from_formalin_E2_80_93ethanol-preserved-published_version-libre.pdf?1647980136=\u0026response-content-disposition=attachment%3B+filename%3DStable_isotope_evidence_from_formalin_et.pdf\u0026Expires=1733027990\u0026Signature=DgsGQ8bofTwsZCIXAViyRzklb-nL8c~1lvS1yNMhfHXhWz8QEdwv52AchRkUh52gbfg9x7JQYuBTBEIa2YTDL~uvHR8lunD6OwWRw6NKBmuV0cL1M4WUqAEx5R8tFvGcKtIXGd0bumb7Lga5AeeZ5-rRCBIonUOct6PsUjvq6tQdTk1N9k3QcAo2CPEETU7vMZM4pTkrZgyjsfiB69r3LG7PMOKDF5dP885ANF0LTjOuK-HXMKGEzJcMBadR7nLEIWu6xXxCb4kSz9bVtHaGY~Rfd2~U7zECc5-Dd7z2XOIy8K0gons0vqp1GwybD~xtcipRNTX0qexQzMy7PD-58g__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Stable_isotope_evidence_from_formalin_ethanol_preserved_specimens_indicates_dietary_shifts_and_increasing_diet_overlap_in_Lake_Victoria_cichlids","translated_slug":"","page_count":19,"language":"en","content_type":"Work","owner":{"id":534684,"first_name":"Jacco","middle_initials":null,"last_name":"van Rijssel","page_name":"JaccovanRijssel","domain_name":"wageningen-ur","created_at":"2011-07-07T01:30:45.155-07:00","display_name":"Jacco van Rijssel","url":"https://wageningen-ur.academia.edu/JaccovanRijssel"},"attachments":[{"id":82518298,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/82518298/thumbnails/1.jpg","file_name":"Kishe-Machumu-2017-Stable_isotope_evidence_from_formalin_E2_80_93ethanol-preserved-published_version.pdf","download_url":"https://www.academia.edu/attachments/82518298/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Stable_isotope_evidence_from_formalin_et.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/82518298/Kishe-Machumu-2017-Stable_isotope_evidence_from_formalin_E2_80_93ethanol-preserved-published_version-libre.pdf?1647980136=\u0026response-content-disposition=attachment%3B+filename%3DStable_isotope_evidence_from_formalin_et.pdf\u0026Expires=1733027990\u0026Signature=DgsGQ8bofTwsZCIXAViyRzklb-nL8c~1lvS1yNMhfHXhWz8QEdwv52AchRkUh52gbfg9x7JQYuBTBEIa2YTDL~uvHR8lunD6OwWRw6NKBmuV0cL1M4WUqAEx5R8tFvGcKtIXGd0bumb7Lga5AeeZ5-rRCBIonUOct6PsUjvq6tQdTk1N9k3QcAo2CPEETU7vMZM4pTkrZgyjsfiB69r3LG7PMOKDF5dP885ANF0LTjOuK-HXMKGEzJcMBadR7nLEIWu6xXxCb4kSz9bVtHaGY~Rfd2~U7zECc5-Dd7z2XOIy8K0gons0vqp1GwybD~xtcipRNTX0qexQzMy7PD-58g__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":400,"name":"Earth Sciences","url":"https://www.academia.edu/Documents/in/Earth_Sciences"},{"id":1421,"name":"Stable isotope ecology","url":"https://www.academia.edu/Documents/in/Stable_isotope_ecology"},{"id":3608,"name":"Historic Preservation","url":"https://www.academia.edu/Documents/in/Historic_Preservation"},{"id":7710,"name":"Biology","url":"https://www.academia.edu/Documents/in/Biology"},{"id":7941,"name":"Stable Isotopes","url":"https://www.academia.edu/Documents/in/Stable_Isotopes"},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences"},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences"},{"id":74664,"name":"Preserved Specimens","url":"https://www.academia.edu/Documents/in/Preserved_Specimens"},{"id":348966,"name":"Lake Victoria","url":"https://www.academia.edu/Documents/in/Lake_Victoria"},{"id":437771,"name":"Dietary Changes","url":"https://www.academia.edu/Documents/in/Dietary_Changes"},{"id":845700,"name":"lake Victoria cichlids","url":"https://www.academia.edu/Documents/in/lake_Victoria_cichlids"},{"id":1154884,"name":"Formalin","url":"https://www.academia.edu/Documents/in/Formalin"},{"id":1922338,"name":"Mwanza Gulf","url":"https://www.academia.edu/Documents/in/Mwanza_Gulf"}],"urls":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="74327566"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/74327566/Changing_ecology_of_Lake_Victoria_cichlids_and_their_environment_evidence_from_C13_and_N15_analyses"><img alt="Research paper thumbnail of Changing ecology of Lake Victoria cichlids and their environment: evidence from C13 and N15 analyses" class="work-thumbnail" src="https://attachments.academia-assets.com/82518318/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/74327566/Changing_ecology_of_Lake_Victoria_cichlids_and_their_environment_evidence_from_C13_and_N15_analyses">Changing ecology of Lake Victoria cichlids and their environment: evidence from C13 and N15 analyses</a></div><div class="wp-workCard_item"><span>Hydrobiologia</span><span>, 2016</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="72261306e087d9a1d04dfcca95715a84" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":82518318,"asset_id":74327566,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/82518318/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="74327566"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="74327566"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 74327566; 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East Africa's Lake Victoria has suffered from severe eutrophication in the past decades which is partly responsible for the dramatic decline in haplochromine cichlid species diversity. However, some zooplanktivorous and detritivorous haplochromine species recovered and shifted their diet towards macro invertebrates and fish. We used four formalin preserved cichlid species caught over the past 35 years to investigate whether stable isotopes of these fish are reflecting the dietary changes, habitat differences and if these isotopes can be used as indicators of eutrophication. We found that d 15 N signatures mainly reflected dietary shifts to larger prey in all four haplochromine species. Shifts in d 13 C signatures likely represented habitat differences and dietary changes. 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href="https://www.academia.edu/74327565/Fast_adaptive_responses_in_the_oral_jaw_of_Lake_Victoria_cichlids">Fast adaptive responses in the oral jaw of Lake Victoria cichlids</a></div><div class="wp-workCard_item"><span>Evolution; international journal of organic evolution</span><span>, 2015</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Rapid morphological changes in response to fluctuating natural environments are a common phenomen...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Rapid morphological changes in response to fluctuating natural environments are a common phenomenon in species that undergo adaptive radiation. The dramatic ecological changes in Lake Victoria provide a unique opportunity to study environmental effects on cichlid morphology. This study shows how four haplochromine cichlids adapted their premaxilla to a changed diet over the past 30 years. Directly after the diet change toward larger and faster prey in the late 1980s, the premaxilla (upper jaw) changed in a way that is in agreement with a more food manipulating feeding style. During the 2000s, two zooplanktivorous species showed a reversal of morphological changes after returning to their original diet, whereas two other species showed no reversal of diet and morphology. These rapid changes indicate a potential for extremely fast adaptive responses to environmental fluctuations, which are likely inflicted by competition release and increase, and might have a bearing on the ability of...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="518f43436b211cde9c92d0ec91558976" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":84009843,"asset_id":74327565,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/84009843/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="74327565"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="74327565"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 74327565; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=74327565]").text(description); $(".js-view-count[data-work-id=74327565]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 74327565; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='74327565']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 74327565, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "518f43436b211cde9c92d0ec91558976" } } $('.js-work-strip[data-work-id=74327565]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":74327565,"title":"Fast adaptive responses in the oral jaw of Lake Victoria cichlids","translated_title":"","metadata":{"abstract":"Rapid morphological changes in response to fluctuating natural environments are a common phenomenon in species that undergo adaptive radiation. The dramatic ecological changes in Lake Victoria provide a unique opportunity to study environmental effects on cichlid morphology. This study shows how four haplochromine cichlids adapted their premaxilla to a changed diet over the past 30 years. Directly after the diet change toward larger and faster prey in the late 1980s, the premaxilla (upper jaw) changed in a way that is in agreement with a more food manipulating feeding style. During the 2000s, two zooplanktivorous species showed a reversal of morphological changes after returning to their original diet, whereas two other species showed no reversal of diet and morphology. These rapid changes indicate a potential for extremely fast adaptive responses to environmental fluctuations, which are likely inflicted by competition release and increase, and might have a bearing on the ability of...","publication_date":{"day":null,"month":null,"year":2015,"errors":{}},"publication_name":"Evolution; international journal of organic evolution"},"translated_abstract":"Rapid morphological changes in response to fluctuating natural environments are a common phenomenon in species that undergo adaptive radiation. The dramatic ecological changes in Lake Victoria provide a unique opportunity to study environmental effects on cichlid morphology. This study shows how four haplochromine cichlids adapted their premaxilla to a changed diet over the past 30 years. Directly after the diet change toward larger and faster prey in the late 1980s, the premaxilla (upper jaw) changed in a way that is in agreement with a more food manipulating feeding style. During the 2000s, two zooplanktivorous species showed a reversal of morphological changes after returning to their original diet, whereas two other species showed no reversal of diet and morphology. These rapid changes indicate a potential for extremely fast adaptive responses to environmental fluctuations, which are likely inflicted by competition release and increase, and might have a bearing on the ability of...","internal_url":"https://www.academia.edu/74327565/Fast_adaptive_responses_in_the_oral_jaw_of_Lake_Victoria_cichlids","translated_internal_url":"","created_at":"2022-03-22T13:04:07.357-07:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":534684,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":84009843,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/84009843/thumbnails/1.jpg","file_name":"Van_Rijssel_et_al._2015.pdf","download_url":"https://www.academia.edu/attachments/84009843/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Fast_adaptive_responses_in_the_oral_jaw.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/84009843/Van_Rijssel_et_al._2015-libre.pdf?1649801622=\u0026response-content-disposition=attachment%3B+filename%3DFast_adaptive_responses_in_the_oral_jaw.pdf\u0026Expires=1733027990\u0026Signature=NDARzZm6Bis4-9xHGegjQJlQSRbzfTRHu5HsN7uzkwsLwyFpsXiMRHFu9UwHllvqtvo8SjzBsLYDhXqrNVDh0mto2K2q4nCxxlrowIFxGGEP5XZImhmPukE0SF~kpPT-Ag1qfx4cwsq0C~jbiQhsT1UerbwgKD3Pm6mtWU~~9GWl2L4DsQ6CFu7MAAcJkmKy0U0RfeIXJNVZ46G2Emy8xGCPVTC9MTR~gQA63Y3N1dN1VxmodTS-jeu3eJq~6o8nbgtOiFqq450clWrAWgb-jcxqOFLwDDA7tNPt98vd4SDmjonTAaBNnbhkBTtw~2PpxruIxaswk1kfF3ylnF~u7w__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Fast_adaptive_responses_in_the_oral_jaw_of_Lake_Victoria_cichlids","translated_slug":"","page_count":11,"language":"en","content_type":"Work","owner":{"id":534684,"first_name":"Jacco","middle_initials":null,"last_name":"van Rijssel","page_name":"JaccovanRijssel","domain_name":"wageningen-ur","created_at":"2011-07-07T01:30:45.155-07:00","display_name":"Jacco van Rijssel","url":"https://wageningen-ur.academia.edu/JaccovanRijssel"},"attachments":[{"id":84009843,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/84009843/thumbnails/1.jpg","file_name":"Van_Rijssel_et_al._2015.pdf","download_url":"https://www.academia.edu/attachments/84009843/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Fast_adaptive_responses_in_the_oral_jaw.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/84009843/Van_Rijssel_et_al._2015-libre.pdf?1649801622=\u0026response-content-disposition=attachment%3B+filename%3DFast_adaptive_responses_in_the_oral_jaw.pdf\u0026Expires=1733027990\u0026Signature=NDARzZm6Bis4-9xHGegjQJlQSRbzfTRHu5HsN7uzkwsLwyFpsXiMRHFu9UwHllvqtvo8SjzBsLYDhXqrNVDh0mto2K2q4nCxxlrowIFxGGEP5XZImhmPukE0SF~kpPT-Ag1qfx4cwsq0C~jbiQhsT1UerbwgKD3Pm6mtWU~~9GWl2L4DsQ6CFu7MAAcJkmKy0U0RfeIXJNVZ46G2Emy8xGCPVTC9MTR~gQA63Y3N1dN1VxmodTS-jeu3eJq~6o8nbgtOiFqq450clWrAWgb-jcxqOFLwDDA7tNPt98vd4SDmjonTAaBNnbhkBTtw~2PpxruIxaswk1kfF3ylnF~u7w__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":155,"name":"Evolutionary Biology","url":"https://www.academia.edu/Documents/in/Evolutionary_Biology"},{"id":9478,"name":"Diet","url":"https://www.academia.edu/Documents/in/Diet"},{"id":10882,"name":"Evolution","url":"https://www.academia.edu/Documents/in/Evolution"},{"id":166506,"name":"Molecular Phylogenetics and Evolution","url":"https://www.academia.edu/Documents/in/Molecular_Phylogenetics_and_Evolution"},{"id":185112,"name":"Maxilla","url":"https://www.academia.edu/Documents/in/Maxilla"},{"id":187216,"name":"Zooplankton","url":"https://www.academia.edu/Documents/in/Zooplankton"},{"id":195089,"name":"Cichlids","url":"https://www.academia.edu/Documents/in/Cichlids"}],"urls":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="72413820"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/72413820/Supplementary_video_from_The_onset_of_ecological_diversification_50_years_after_colonization_of_a_crater_lake_by_haplochromine_cichlid_fishes"><img alt="Research paper thumbnail of Supplementary video from The onset of ecological diversification 50 years after colonization of a crater lake by haplochromine cichlid fishes" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/72413820/Supplementary_video_from_The_onset_of_ecological_diversification_50_years_after_colonization_of_a_crater_lake_by_haplochromine_cichlid_fishes">Supplementary video from The onset of ecological diversification 50 years after colonization of a crater lake by haplochromine cichlid fishes</a></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Adaptive radiation research typically relies on the study of evolution in retrospective, leaving ...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Adaptive radiation research typically relies on the study of evolution in retrospective, leaving the predictive value of the concept hard to evaluate. Several radiations, including the cichlid fishes in the East African Great Lakes, have been studied extensively, yet no study has investigated the onset of the intraspecific processes of niche expansion and differentiation shortly after colonization of an adaptive zone by cichlids. Haplochromine cichlids of one of the two lineages that seeded the Lake Victoria radiation recently arrived in Lake Chala, a lake perfectly suited for within-lake cichlid speciation. Here, we infer the colonization and demographic history, quantify phenotypic, ecological and genomic diversity and diversification, and investigate the selection regime to ask if the population shows signs of diversification resembling the onset of adaptive radiation. We find that since their arrival in the lake, haplochromines have colonized a wide range of depth habitats assoc...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="72413820"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="72413820"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 72413820; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=72413820]").text(description); $(".js-view-count[data-work-id=72413820]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 72413820; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='72413820']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 72413820, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=72413820]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":72413820,"title":"Supplementary video from The onset of ecological diversification 50 years after colonization of a crater lake by haplochromine cichlid fishes","translated_title":"","metadata":{"abstract":"Adaptive radiation research typically relies on the study of evolution in retrospective, leaving the predictive value of the concept hard to evaluate. Several radiations, including the cichlid fishes in the East African Great Lakes, have been studied extensively, yet no study has investigated the onset of the intraspecific processes of niche expansion and differentiation shortly after colonization of an adaptive zone by cichlids. Haplochromine cichlids of one of the two lineages that seeded the Lake Victoria radiation recently arrived in Lake Chala, a lake perfectly suited for within-lake cichlid speciation. Here, we infer the colonization and demographic history, quantify phenotypic, ecological and genomic diversity and diversification, and investigate the selection regime to ask if the population shows signs of diversification resembling the onset of adaptive radiation. We find that since their arrival in the lake, haplochromines have colonized a wide range of depth habitats assoc...","publisher":"Figshare","publication_date":{"day":17,"month":8,"year":2018,"errors":{}}},"translated_abstract":"Adaptive radiation research typically relies on the study of evolution in retrospective, leaving the predictive value of the concept hard to evaluate. Several radiations, including the cichlid fishes in the East African Great Lakes, have been studied extensively, yet no study has investigated the onset of the intraspecific processes of niche expansion and differentiation shortly after colonization of an adaptive zone by cichlids. Haplochromine cichlids of one of the two lineages that seeded the Lake Victoria radiation recently arrived in Lake Chala, a lake perfectly suited for within-lake cichlid speciation. Here, we infer the colonization and demographic history, quantify phenotypic, ecological and genomic diversity and diversification, and investigate the selection regime to ask if the population shows signs of diversification resembling the onset of adaptive radiation. We find that since their arrival in the lake, haplochromines have colonized a wide range of depth habitats assoc...","internal_url":"https://www.academia.edu/72413820/Supplementary_video_from_The_onset_of_ecological_diversification_50_years_after_colonization_of_a_crater_lake_by_haplochromine_cichlid_fishes","translated_internal_url":"","created_at":"2022-02-24T06:55:51.089-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":534684,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[],"slug":"Supplementary_video_from_The_onset_of_ecological_diversification_50_years_after_colonization_of_a_crater_lake_by_haplochromine_cichlid_fishes","translated_slug":"","page_count":null,"language":"en","content_type":"Work","owner":{"id":534684,"first_name":"Jacco","middle_initials":null,"last_name":"van Rijssel","page_name":"JaccovanRijssel","domain_name":"wageningen-ur","created_at":"2011-07-07T01:30:45.155-07:00","display_name":"Jacco van Rijssel","url":"https://wageningen-ur.academia.edu/JaccovanRijssel"},"attachments":[],"research_interests":[],"urls":[]}, dispatcherData: dispatcherData }); 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The few nets (4 times three joined nets with 16, 19 and 22mm mesh size) that we set in the limnetic habitat remained empty. For each gill net, the depth was measured and recorded with the use of sinkers. Fish were carefully removed from the net and photographed from their left side in a custom designed photo cuvette with a colour reference bar, a scale bar and a standardized grey background. The fish was afterwards sacrificed with an overdose of phenoxyethanol diluted in lake water. From the right side of each fish, we removed the pectoral fin and kept it in pure analytical ethanol (100%) for DNA extractions, and we removed a piece of the epaxial muscle dorsal of the lateral line, removed the skin, and dried the muscle tissue in an oven (60°C for 24 to 48 hours) for stable isotope analysis. Whole fish were subsequently fixed in 4% formalin (buffered with borax) and were later rinsed with water and stepwise transferred to 75% ethanol. In addition to Astatotilapia, we sampled all other fish species occurring in Lake Chala (Oreochromis hunteri, O. sp. 'blue head' and Coptodon rendalli) using the methods described above. Additionally we bought several larger O. hunteri from a local fisherman on the lake, who was fishing by hook and line. We also sampled Astatotilapia cf. bloyeti from the nearby Nyumba ya Mungu Reservoir (bought from the market), a dammed reservoir in the Ruvu/Pangani River, and Astatotilapia sp. from Lake Babati (gill netting), and Oreochromis spp. from the Nyumba ya Mungu (fish market), the Ruvu River (angling) and Lake Babati (gill netting) to reconstruct the colonization history of Lake Chala cichlids. Appendix S2: Methods: Filtering procedure for the RAD-tag sequences Raw reads (100 bp each) for the genomic analyses came from six libraries. Each library resulted in between 175 mio and 290 mio raw reads. Sites were filtered to include only reads with an intact SbfI restriction site, de-multiplexed and barcode-trimmed (to a length of 90 bp) using stacks and the FASTX toolkit v.0.0.13. Afterwards, reads with at least 5% of the bases with a quality below 30 were excluded for every individual with the FASTX toolkit v.0.0.13. The remaining reads were mapped against the reference genome of Metriaclima zebra (1) for phylogenetic analyses, F-statistics and STRUCTURE-analyses, and against the reference genome of Oreochromis niloticus (2) for F-statistics, PCA and STRUCTURE analyses. We used two different reference genomes to retain as many SNPs as possible for the phylogenetic analyses, while getting chromosomal information for the genome scans and F-statistics. Base quality scores for the mapped reads were recalibrated using empirical error rate estimations that we gained from bacteriophage PhiX reads (3). Genotypes were called with the GATK tool UnifiedGenotyper and filtered for genotype depth (\u003e20), genotype quality (\u003e30), maximal allowed missing data of 50% per site and indels were removed using vcftools (4). We removed all individuals with more than 50% missing data using vcftools. This dataset was used as the basis for all subsequent analyses. Below, additional filtering steps are indicated for each analysis separately. RAxML v8.0.0 (5) was used to build a maximum likelihood tree using all concatenated sequences (~2 Mio sites, including monormorphic and polymorphic sites). For each of 100 bootstrap replicates, we resampled sites from the concatenated dataset. 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Lions spent most of their time inside the park, especially in the hot dry season. Time spent outside the park increases in the wet season and peaks in the cold dry season. Lions were most active during the night with crepuscular peaks around sunrise and sunset and reduced activity during the hottest parts of the day. This nocturnal activity increases when lions were outside the park. Lions were least active in the cold dry season compared to the hot dry and the wet season. Transects showed an increasing number and congregation of wild ungulates on the floodplain in time with most of the observed lions in the vicinity of these congregations. Number of nights present at a GPS cluster presented the best model to predict whether or not a lion had killed or scavenged an animal successfully. Lions killed or s...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="cb106dabb887f09f7153d067258d5bb5" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":81348199,"asset_id":72413813,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/81348199/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="72413813"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="72413813"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 72413813; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=72413813]").text(description); $(".js-view-count[data-work-id=72413813]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 72413813; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='72413813']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 72413813, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "cb106dabb887f09f7153d067258d5bb5" } } $('.js-work-strip[data-work-id=72413813]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":72413813,"title":"Lion (Panthera leo) ecology and livestock conflicts in Waza National Park, Cameroon","translated_title":"","metadata":{"abstract":"Demography and ecology were studied of a decreased lion population in Waza National Park, Cameroon Home ranges of lions were large with an average of 1043 (MCP 100%) or 635 (HM 95%). 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J.P. The fish fauna of Lake Victoria during a century of human induced perturbations. In J. Snoeks & A. Getahun (eds), Proceedings of the Fourth International Conference on African Fish and Fisheries, Addis Ababa, Ethiopia, 22-26 September 2008. Tervuren: Royal Museum for Central Africa, ‘Zoological Documentation Online Series’, pp. 49-66. Lake Victoria, by area the largest tropical lake of the world, is well-known for its diverse native fish fauna, which comprised about 500 endemic haplochromine cichlid species, two tilapiine species and 46 other species belonging to 12 families. During the past decades, the fish species diversity in the lake has declined dramatically due to human induced perturbations in the ecosystem. Based on literature and our own research findings we provide an overview of these changes and their most likely causes. During the first half of the l...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="c68d36f79c1bf564e3eff8b76fb6f15e" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":79327685,"asset_id":69099806,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/79327685/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="69099806"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="69099806"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 69099806; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=69099806]").text(description); $(".js-view-count[data-work-id=69099806]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 69099806; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='69099806']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 69099806, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "c68d36f79c1bf564e3eff8b76fb6f15e" } } $('.js-work-strip[data-work-id=69099806]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":69099806,"title":"The Fish Fauna of Lake Victoria during a Centruy of Human Induced Perturbations","translated_title":"","metadata":{"abstract":"witte, f., kishe-machumu, m. a., mkumbo, o. c., wanink, J. h., goudswaard, P. c., van riJssel, J.c. \u0026 van oiJen, m. J.P. The fish fauna of Lake Victoria during a century of human induced perturbations. In J. Snoeks \u0026 A. Getahun (eds), Proceedings of the Fourth International Conference on African Fish and Fisheries, Addis Ababa, Ethiopia, 22-26 September 2008. Tervuren: Royal Museum for Central Africa, ‘Zoological Documentation Online Series’, pp. 49-66. Lake Victoria, by area the largest tropical lake of the world, is well-known for its diverse native fish fauna, which comprised about 500 endemic haplochromine cichlid species, two tilapiine species and 46 other species belonging to 12 families. During the past decades, the fish species diversity in the lake has declined dramatically due to human induced perturbations in the ecosystem. Based on literature and our own research findings we provide an overview of these changes and their most likely causes. During the first half of the l...","publication_date":{"day":null,"month":null,"year":2013,"errors":{}}},"translated_abstract":"witte, f., kishe-machumu, m. a., mkumbo, o. c., wanink, J. h., goudswaard, P. c., van riJssel, J.c. \u0026 van oiJen, m. J.P. The fish fauna of Lake Victoria during a century of human induced perturbations. In J. Snoeks \u0026 A. Getahun (eds), Proceedings of the Fourth International Conference on African Fish and Fisheries, Addis Ababa, Ethiopia, 22-26 September 2008. Tervuren: Royal Museum for Central Africa, ‘Zoological Documentation Online Series’, pp. 49-66. Lake Victoria, by area the largest tropical lake of the world, is well-known for its diverse native fish fauna, which comprised about 500 endemic haplochromine cichlid species, two tilapiine species and 46 other species belonging to 12 families. During the past decades, the fish species diversity in the lake has declined dramatically due to human induced perturbations in the ecosystem. Based on literature and our own research findings we provide an overview of these changes and their most likely causes. 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="123145253"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/123145253/Reintroducing_Atlantic_salmon_in_the_river_Rhine_for_decades_Why_did_it_not_result_in_the_return_of_a_viable_population"><img alt="Research paper thumbnail of Reintroducing Atlantic salmon in the river Rhine for decades: Why did it not result in the return of a viable population?" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/123145253/Reintroducing_Atlantic_salmon_in_the_river_Rhine_for_decades_Why_did_it_not_result_in_the_return_of_a_viable_population">Reintroducing Atlantic salmon in the river Rhine for decades: Why did it not result in the return of a viable population?</a></div><div class="wp-workCard_item"><span>River research and applications</span><span>, Apr 21, 2024</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Freshwater species biodiversity is under threat. The average global decline for migratory fish sp...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Freshwater species biodiversity is under threat. The average global decline for migratory fish species is estimated to be more than 75% since 1970. Atlantic salmon is one of these species with a steep decline in northwestern Europe and it even went extinct in the river Rhine in the 1950s. The causes for this decline have been posted to habitat loss, pollution, climate change and overfishing. Annual stocking in the Rhine since the late 1980s resulted in an initial increase in the Atlantic salmon numbers after which numbers collapsed again. In this paper, we lay out the recent decline, estimate losses of smolts and adults at different sections in the freshwater habitat and elaborate on potential causes of the recent decline and these losses. We found</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="123145253"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="123145253"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 123145253; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=123145253]").text(description); $(".js-view-count[data-work-id=123145253]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 123145253; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='123145253']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 123145253, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=123145253]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":123145253,"title":"Reintroducing Atlantic salmon in the river Rhine for decades: Why did it not result in the return of a viable population?","translated_title":"","metadata":{"abstract":"Freshwater species biodiversity is under threat. 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We found","internal_url":"https://www.academia.edu/123145253/Reintroducing_Atlantic_salmon_in_the_river_Rhine_for_decades_Why_did_it_not_result_in_the_return_of_a_viable_population","translated_internal_url":"","created_at":"2024-08-23T02:43:26.223-07:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":534684,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[],"slug":"Reintroducing_Atlantic_salmon_in_the_river_Rhine_for_decades_Why_did_it_not_result_in_the_return_of_a_viable_population","translated_slug":"","page_count":null,"language":"en","content_type":"Work","owner":{"id":534684,"first_name":"Jacco","middle_initials":null,"last_name":"van Rijssel","page_name":"JaccovanRijssel","domain_name":"wageningen-ur","created_at":"2011-07-07T01:30:45.155-07:00","display_name":"Jacco van Rijssel","url":"https://wageningen-ur.academia.edu/JaccovanRijssel"},"attachments":[],"research_interests":[{"id":19673,"name":"River Ecology","url":"https://www.academia.edu/Documents/in/River_Ecology"},{"id":46371,"name":"Salmonids","url":"https://www.academia.edu/Documents/in/Salmonids"},{"id":64073,"name":"Brown trout","url":"https://www.academia.edu/Documents/in/Brown_trout"},{"id":64336,"name":"Population","url":"https://www.academia.edu/Documents/in/Population"},{"id":94214,"name":"Telemetry","url":"https://www.academia.edu/Documents/in/Telemetry"},{"id":164869,"name":"Atlantic Salmon","url":"https://www.academia.edu/Documents/in/Atlantic_Salmon"},{"id":173285,"name":"Fishery","url":"https://www.academia.edu/Documents/in/Fishery"},{"id":395125,"name":"Rhine-Meuse Delta","url":"https://www.academia.edu/Documents/in/Rhine-Meuse_Delta"}],"urls":[{"id":44189995,"url":"https://doi.org/10.1002/rra.4284"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="118702632"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/118702632/Reintroducing_Atlantic_salmon_in_the_river_Rhine_for_decades_Why_did_it_not_result_in_the_return_of_a_viable_population"><img alt="Research paper thumbnail of Reintroducing Atlantic salmon in the river Rhine for decades: Why did it not result in the return of a viable population" class="work-thumbnail" src="https://attachments.academia-assets.com/114267487/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/118702632/Reintroducing_Atlantic_salmon_in_the_river_Rhine_for_decades_Why_did_it_not_result_in_the_return_of_a_viable_population">Reintroducing Atlantic salmon in the river Rhine for decades: Why did it not result in the return of a viable population</a></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Freshwater species biodiversity is under threat. The average global decline for migratory fish sp...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Freshwater species biodiversity is under threat. The average global decline for migratory fish species is estimated to be more than 75% since 1970. Atlantic salmon is one of these species with a steep decline in northwestern Europe and it even went extinct in the river Rhine in the 1950s. The causes for this decline have been posted to habitat loss, pollution, climate change and overfishing. Annual stocking in the Rhine since the late 1980s resulted in an initial increase in the Atlantic salmon numbers after which numbers collapsed again. In this paper, we lay out the recent decline, estimate losses of smolts and adults at different sections in the freshwater habitat and elaborate on potential causes of the recent decline and these losses. We found</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="f6de41c7647b882ad7caeb93e2f5ac85" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":114267487,"asset_id":118702632,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/114267487/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="118702632"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="118702632"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 118702632; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=118702632]").text(description); $(".js-view-count[data-work-id=118702632]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 118702632; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='118702632']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 118702632, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "f6de41c7647b882ad7caeb93e2f5ac85" } } $('.js-work-strip[data-work-id=118702632]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":118702632,"title":"Reintroducing Atlantic salmon in the river Rhine for decades: Why did it not result in the return of a viable population","translated_title":"","metadata":{"doi":"10.1002/rra.4284","abstract":"Freshwater species biodiversity is under threat. The average global decline for migratory fish species is estimated to be more than 75% since 1970. Atlantic salmon is one of these species with a steep decline in northwestern Europe and it even went extinct in the river Rhine in the 1950s. The causes for this decline have been posted to habitat loss, pollution, climate change and overfishing. Annual stocking in the Rhine since the late 1980s resulted in an initial increase in the Atlantic salmon numbers after which numbers collapsed again. In this paper, we lay out the recent decline, estimate losses of smolts and adults at different sections in the freshwater habitat and elaborate on potential causes of the recent decline and these losses. We found","publication_date":{"day":null,"month":null,"year":2024,"errors":{}}},"translated_abstract":"Freshwater species biodiversity is under threat. The average global decline for migratory fish species is estimated to be more than 75% since 1970. Atlantic salmon is one of these species with a steep decline in northwestern Europe and it even went extinct in the river Rhine in the 1950s. The causes for this decline have been posted to habitat loss, pollution, climate change and overfishing. Annual stocking in the Rhine since the late 1980s resulted in an initial increase in the Atlantic salmon numbers after which numbers collapsed again. In this paper, we lay out the recent decline, estimate losses of smolts and adults at different sections in the freshwater habitat and elaborate on potential causes of the recent decline and these losses. We found","internal_url":"https://www.academia.edu/118702632/Reintroducing_Atlantic_salmon_in_the_river_Rhine_for_decades_Why_did_it_not_result_in_the_return_of_a_viable_population","translated_internal_url":"","created_at":"2024-05-07T07:39:09.279-07:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":534684,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":114267487,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/114267487/thumbnails/1.jpg","file_name":"River_Research_Apps_2024_Rijssel_Reintroducing_Atlantic_salmon_in_the_river_Rhine_for_decades_Why_did_it_not_1_.pdf","download_url":"https://www.academia.edu/attachments/114267487/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Reintroducing_Atlantic_salmon_in_the_riv.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/114267487/River_Research_Apps_2024_Rijssel_Reintroducing_Atlantic_salmon_in_the_river_Rhine_for_decades_Why_did_it_not_1_-libre.pdf?1715095277=\u0026response-content-disposition=attachment%3B+filename%3DReintroducing_Atlantic_salmon_in_the_riv.pdf\u0026Expires=1733027989\u0026Signature=aOJ0RzXmY1zUzMRPEi2xx72NpXfMuFxqC1QdmYjxE4WXFMKCz8c9x0trRXMjFphzg~U4u0RIAmziX~6ZkiNA1rw7V~FScbVn0DA0b8iY1uTO95elTpG3QErKljzLBZVuWkcRcMz6ZPRu4g36Y9KU0ZmwMLg0EvRrB~oo7M3~C8KVsHM8ivv5Ep~0Ng7U9SfvAvEJxyC~jAt0tsEsv2LU4Eh4i-a1xvySNtGt1CIShNG1zWdbMT3iwXm96DCp3M2t6gn88IFZ5KlbTOtN3SwiD-0Ey6gZRsw4bj6xjFTFbuAtrh49eu0DkKdVvr7cm5G4CZCAsjPyHgd5nuiI8eNE~A__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Reintroducing_Atlantic_salmon_in_the_river_Rhine_for_decades_Why_did_it_not_result_in_the_return_of_a_viable_population","translated_slug":"","page_count":19,"language":"en","content_type":"Work","owner":{"id":534684,"first_name":"Jacco","middle_initials":null,"last_name":"van Rijssel","page_name":"JaccovanRijssel","domain_name":"wageningen-ur","created_at":"2011-07-07T01:30:45.155-07:00","display_name":"Jacco van Rijssel","url":"https://wageningen-ur.academia.edu/JaccovanRijssel"},"attachments":[{"id":114267487,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/114267487/thumbnails/1.jpg","file_name":"River_Research_Apps_2024_Rijssel_Reintroducing_Atlantic_salmon_in_the_river_Rhine_for_decades_Why_did_it_not_1_.pdf","download_url":"https://www.academia.edu/attachments/114267487/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Reintroducing_Atlantic_salmon_in_the_riv.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/114267487/River_Research_Apps_2024_Rijssel_Reintroducing_Atlantic_salmon_in_the_river_Rhine_for_decades_Why_did_it_not_1_-libre.pdf?1715095277=\u0026response-content-disposition=attachment%3B+filename%3DReintroducing_Atlantic_salmon_in_the_riv.pdf\u0026Expires=1733027989\u0026Signature=aOJ0RzXmY1zUzMRPEi2xx72NpXfMuFxqC1QdmYjxE4WXFMKCz8c9x0trRXMjFphzg~U4u0RIAmziX~6ZkiNA1rw7V~FScbVn0DA0b8iY1uTO95elTpG3QErKljzLBZVuWkcRcMz6ZPRu4g36Y9KU0ZmwMLg0EvRrB~oo7M3~C8KVsHM8ivv5Ep~0Ng7U9SfvAvEJxyC~jAt0tsEsv2LU4Eh4i-a1xvySNtGt1CIShNG1zWdbMT3iwXm96DCp3M2t6gn88IFZ5KlbTOtN3SwiD-0Ey6gZRsw4bj6xjFTFbuAtrh49eu0DkKdVvr7cm5G4CZCAsjPyHgd5nuiI8eNE~A__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":19673,"name":"River Ecology","url":"https://www.academia.edu/Documents/in/River_Ecology"},{"id":46371,"name":"Salmonids","url":"https://www.academia.edu/Documents/in/Salmonids"},{"id":64073,"name":"Brown trout","url":"https://www.academia.edu/Documents/in/Brown_trout"},{"id":94214,"name":"Telemetry","url":"https://www.academia.edu/Documents/in/Telemetry"},{"id":164869,"name":"Atlantic Salmon","url":"https://www.academia.edu/Documents/in/Atlantic_Salmon"},{"id":395125,"name":"Rhine-Meuse Delta","url":"https://www.academia.edu/Documents/in/Rhine-Meuse_Delta"}],"urls":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="93778035"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/93778035/Strong_species_structure_but_weak_geographical_structure_in_demersal_Lake_Victoria_cichlids"><img alt="Research paper thumbnail of Strong species structure but weak geographical structure in demersal Lake Victoria cichlids" class="work-thumbnail" src="https://attachments.academia-assets.com/96422195/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/93778035/Strong_species_structure_but_weak_geographical_structure_in_demersal_Lake_Victoria_cichlids">Strong species structure but weak geographical structure in demersal Lake Victoria cichlids</a></div><div class="wp-workCard_item"><span>Ecology and Evolution</span><span>, 2022</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Studying phenotypic and genetic differentiation between very young species can be very informativ...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Studying phenotypic and genetic differentiation between very young species can be<br />very informative with regard to learning about processes of speciation. Identifying<br />and characterizing genetic species structure and distinguishing it from spatial genetic<br />structure within a species is a prerequisite for this and is often not given sufficient<br />attention. Young radiations of cichlid fish are classical speciation study systems.<br />However, it is only during the past decade that population genomics based on nextgeneration sequencing has begun to provide the power to resolve species and distinguish speciation from spatial population structure for the youngest of these radiations.<br />The Lake Victoria haplochromine cichlids constitute the youngest large cichlid fish<br />radiation, probably <20,000 years old. Earlier work showed that communities of rocky<br />reef cichlids are composed of many reciprocally monophyletic species despite their<br />very recent origins. Here, we build on this work by studying assemblages of offshore<br />demersal cichlids, adding analyses of within-species<br />spatial structure to the sympatric species structure. We sampled seven multispecies communities along a 6-km-long<br />transect from one side of the Mwanza Gulf to the other side. We investigated whether<br />phenotypically diagnosed putative species are reciprocally monophyletic and whether<br />such monophyly is stable across species geographic ranges. We show that all species<br />are genetically strongly differentiated in sympatry, that they are reciprocally monophyletic, and that monophyly is stable across distribution ranges. We found significant<br />differentiation between geographically distinct populations in two species, but no or<br />weak isolation by distance. We further found subtle but significant morphological differences between all species and a linear relationship between genomic and morphological distance which suggests that differences in morphology begin to accumulate<br />after speciation has already affected genome-wide<br />restrictions of gene flow.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="a4fd45d5dff8c9c1009bcd3613743882" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":96422195,"asset_id":93778035,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/96422195/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="93778035"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="93778035"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 93778035; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=93778035]").text(description); $(".js-view-count[data-work-id=93778035]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 93778035; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='93778035']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 93778035, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "a4fd45d5dff8c9c1009bcd3613743882" } } $('.js-work-strip[data-work-id=93778035]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":93778035,"title":"Strong species structure but weak geographical structure in demersal Lake Victoria cichlids","translated_title":"","metadata":{"doi":"10.1002/ece3.9669","abstract":"Studying phenotypic and genetic differentiation between very young species can be\nvery informative with regard to learning about processes of speciation. Identifying\nand characterizing genetic species structure and distinguishing it from spatial genetic\nstructure within a species is a prerequisite for this and is often not given sufficient\nattention. Young radiations of cichlid fish are classical speciation study systems.\nHowever, it is only during the past decade that population genomics based on nextgeneration sequencing has begun to provide the power to resolve species and distinguish speciation from spatial population structure for the youngest of these radiations.\nThe Lake Victoria haplochromine cichlids constitute the youngest large cichlid fish\nradiation, probably \u003c20,000 years old. Earlier work showed that communities of rocky\nreef cichlids are composed of many reciprocally monophyletic species despite their\nvery recent origins. Here, we build on this work by studying assemblages of offshore\ndemersal cichlids, adding analyses of within-species\nspatial structure to the sympatric species structure. We sampled seven multispecies communities along a 6-km-long\ntransect from one side of the Mwanza Gulf to the other side. We investigated whether\nphenotypically diagnosed putative species are reciprocally monophyletic and whether\nsuch monophyly is stable across species geographic ranges. We show that all species\nare genetically strongly differentiated in sympatry, that they are reciprocally monophyletic, and that monophyly is stable across distribution ranges. We found significant\ndifferentiation between geographically distinct populations in two species, but no or\nweak isolation by distance. We further found subtle but significant morphological differences between all species and a linear relationship between genomic and morphological distance which suggests that differences in morphology begin to accumulate\nafter speciation has already affected genome-wide\nrestrictions of gene flow.","publication_date":{"day":null,"month":null,"year":2022,"errors":{}},"publication_name":"Ecology and Evolution"},"translated_abstract":"Studying phenotypic and genetic differentiation between very young species can be\nvery informative with regard to learning about processes of speciation. Identifying\nand characterizing genetic species structure and distinguishing it from spatial genetic\nstructure within a species is a prerequisite for this and is often not given sufficient\nattention. Young radiations of cichlid fish are classical speciation study systems.\nHowever, it is only during the past decade that population genomics based on nextgeneration sequencing has begun to provide the power to resolve species and distinguish speciation from spatial population structure for the youngest of these radiations.\nThe Lake Victoria haplochromine cichlids constitute the youngest large cichlid fish\nradiation, probably \u003c20,000 years old. Earlier work showed that communities of rocky\nreef cichlids are composed of many reciprocally monophyletic species despite their\nvery recent origins. Here, we build on this work by studying assemblages of offshore\ndemersal cichlids, adding analyses of within-species\nspatial structure to the sympatric species structure. We sampled seven multispecies communities along a 6-km-long\ntransect from one side of the Mwanza Gulf to the other side. We investigated whether\nphenotypically diagnosed putative species are reciprocally monophyletic and whether\nsuch monophyly is stable across species geographic ranges. We show that all species\nare genetically strongly differentiated in sympatry, that they are reciprocally monophyletic, and that monophyly is stable across distribution ranges. We found significant\ndifferentiation between geographically distinct populations in two species, but no or\nweak isolation by distance. We further found subtle but significant morphological differences between all species and a linear relationship between genomic and morphological distance which suggests that differences in morphology begin to accumulate\nafter speciation has already affected genome-wide\nrestrictions of gene flow.","internal_url":"https://www.academia.edu/93778035/Strong_species_structure_but_weak_geographical_structure_in_demersal_Lake_Victoria_cichlids","translated_internal_url":"","created_at":"2022-12-27T03:40:50.633-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":534684,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[{"id":39258188,"work_id":93778035,"tagging_user_id":534684,"tagged_user_id":75822323,"co_author_invite_id":null,"email":"f***r@iee.unibe.ch","display_order":1,"name":"Florian Moser","title":"Strong species structure but weak geographical structure in demersal Lake Victoria cichlids"},{"id":39258189,"work_id":93778035,"tagging_user_id":534684,"tagged_user_id":7541539,"co_author_invite_id":null,"email":"o***n@eawag.ch","display_order":2,"name":"ole seehausen","title":"Strong species structure but weak geographical structure in demersal Lake Victoria cichlids"},{"id":39258190,"work_id":93778035,"tagging_user_id":534684,"tagged_user_id":67913617,"co_author_invite_id":null,"email":"m***e@gmail.com","display_order":3,"name":"Salome Mwaiko","title":"Strong species structure but weak geographical structure in demersal Lake Victoria cichlids"}],"downloadable_attachments":[{"id":96422195,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/96422195/thumbnails/1.jpg","file_name":"Van_Rijssel_et_al_2022.pdf","download_url":"https://www.academia.edu/attachments/96422195/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Strong_species_structure_but_weak_geogra.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/96422195/Van_Rijssel_et_al_2022-libre.pdf?1672141685=\u0026response-content-disposition=attachment%3B+filename%3DStrong_species_structure_but_weak_geogra.pdf\u0026Expires=1733027989\u0026Signature=dCysk7jAmAzy7PFLaLLSuVVtkS1uCf22FHmFJ5376UHpbKLN32hta7XX6bQb6GOzco8E0WYK0~NSQzRZkR6FPmCZnX4sdzsYdTogg6SWbQqONMjxxzY~~zQLvV~bcu1S5cFaTqMhmfD5~XUNAba~5MADEn8hZ6f4Eb8uImgh8lIEixuaDfLqwIGuQzv0jcEx64H9~P4blQz9FrdfOoT1WSOf1Dyx8Nt4SspXe-Bt5y3~ADZiQzBXnVa6rnQIHWWC4ITm5OKp8E1TV~dRPHBOUHbHJDQrD9Hjvszjm121k99E9FqbqQwYRuV7kKyYlyd-nICR3vWXHcbBxb7ZHzzAow__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Strong_species_structure_but_weak_geographical_structure_in_demersal_Lake_Victoria_cichlids","translated_slug":"","page_count":12,"language":"en","content_type":"Work","owner":{"id":534684,"first_name":"Jacco","middle_initials":null,"last_name":"van Rijssel","page_name":"JaccovanRijssel","domain_name":"wageningen-ur","created_at":"2011-07-07T01:30:45.155-07:00","display_name":"Jacco van Rijssel","url":"https://wageningen-ur.academia.edu/JaccovanRijssel"},"attachments":[{"id":96422195,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/96422195/thumbnails/1.jpg","file_name":"Van_Rijssel_et_al_2022.pdf","download_url":"https://www.academia.edu/attachments/96422195/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Strong_species_structure_but_weak_geogra.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/96422195/Van_Rijssel_et_al_2022-libre.pdf?1672141685=\u0026response-content-disposition=attachment%3B+filename%3DStrong_species_structure_but_weak_geogra.pdf\u0026Expires=1733027989\u0026Signature=dCysk7jAmAzy7PFLaLLSuVVtkS1uCf22FHmFJ5376UHpbKLN32hta7XX6bQb6GOzco8E0WYK0~NSQzRZkR6FPmCZnX4sdzsYdTogg6SWbQqONMjxxzY~~zQLvV~bcu1S5cFaTqMhmfD5~XUNAba~5MADEn8hZ6f4Eb8uImgh8lIEixuaDfLqwIGuQzv0jcEx64H9~P4blQz9FrdfOoT1WSOf1Dyx8Nt4SspXe-Bt5y3~ADZiQzBXnVa6rnQIHWWC4ITm5OKp8E1TV~dRPHBOUHbHJDQrD9Hjvszjm121k99E9FqbqQwYRuV7kKyYlyd-nICR3vWXHcbBxb7ZHzzAow__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":4310,"name":"Speciation","url":"https://www.academia.edu/Documents/in/Speciation"},{"id":18594,"name":"Evolutionary Ecology","url":"https://www.academia.edu/Documents/in/Evolutionary_Ecology"},{"id":216604,"name":"Cichlidae","url":"https://www.academia.edu/Documents/in/Cichlidae"},{"id":327956,"name":"Species Delimitation","url":"https://www.academia.edu/Documents/in/Species_Delimitation"},{"id":348966,"name":"Lake Victoria","url":"https://www.academia.edu/Documents/in/Lake_Victoria"},{"id":990827,"name":"Next Generation Sequencing (NGS)","url":"https://www.academia.edu/Documents/in/Next_Generation_Sequencing_NGS_"}],"urls":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="80166234"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/80166234/Efficiency_changes_in_bottom_trawling_for_flatfish_species_as_a_result_of_the_replacement_of_mechanical_stimulation_by_electric_stimulation"><img alt="Research paper thumbnail of Efficiency changes in bottom trawling for flatfish species as a result of the replacement of mechanical stimulation by electric stimulation" class="work-thumbnail" src="https://attachments.academia-assets.com/86638681/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/80166234/Efficiency_changes_in_bottom_trawling_for_flatfish_species_as_a_result_of_the_replacement_of_mechanical_stimulation_by_electric_stimulation">Efficiency changes in bottom trawling for flatfish species as a result of the replacement of mechanical stimulation by electric stimulation</a></div><div class="wp-workCard_item"><span>ICES Journal of Marine Science</span><span>, 2020</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Although fishing with electricity is illegal in the European Union, a number of temporary licence...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Although fishing with electricity is illegal in the European Union, a number of temporary licences allowed converting beam trawlers to pulse trawling. To analyse how the adaption of pulse trawling changed this fishery, we studied fishing speeds and landings per unit effort as proxies for catch efficiencies for the main target species. Compared to conventional tickler chain beam trawls, pulse trawls were towed at lower speeds (small vessels −10%, large vessels −23%). Large vessels that switched from conventional beam trawls to pulse trawls at the end of 2009 gradually increased catch efficiency for sole over the period of almost 1 year. While pulse trawling was found to have higher catch rates (kg/h) for sole (small vessels +74%, large vessels +17%), lower catch rates were observed for plaice (small vessels −31%, large vessels −32%). Vessels that switched later achieved immediate gains in catch efficiency for sole. The change in catch efficiency is likely due to the difference in cra...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="be534747df7991e2d9aadea73a14282a" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":86638681,"asset_id":80166234,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/86638681/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="80166234"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="80166234"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 80166234; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=80166234]").text(description); $(".js-view-count[data-work-id=80166234]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 80166234; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='80166234']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 80166234, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "be534747df7991e2d9aadea73a14282a" } } $('.js-work-strip[data-work-id=80166234]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":80166234,"title":"Efficiency changes in bottom trawling for flatfish species as a result of the replacement of mechanical stimulation by electric stimulation","translated_title":"","metadata":{"abstract":"Although fishing with electricity is illegal in the European Union, a number of temporary licences allowed converting beam trawlers to pulse trawling. To analyse how the adaption of pulse trawling changed this fishery, we studied fishing speeds and landings per unit effort as proxies for catch efficiencies for the main target species. Compared to conventional tickler chain beam trawls, pulse trawls were towed at lower speeds (small vessels −10%, large vessels −23%). Large vessels that switched from conventional beam trawls to pulse trawls at the end of 2009 gradually increased catch efficiency for sole over the period of almost 1 year. While pulse trawling was found to have higher catch rates (kg/h) for sole (small vessels +74%, large vessels +17%), lower catch rates were observed for plaice (small vessels −31%, large vessels −32%). Vessels that switched later achieved immediate gains in catch efficiency for sole. The change in catch efficiency is likely due to the difference in cra...","publisher":"Oxford University Press (OUP)","publication_date":{"day":null,"month":null,"year":2020,"errors":{}},"publication_name":"ICES Journal of Marine Science"},"translated_abstract":"Although fishing with electricity is illegal in the European Union, a number of temporary licences allowed converting beam trawlers to pulse trawling. To analyse how the adaption of pulse trawling changed this fishery, we studied fishing speeds and landings per unit effort as proxies for catch efficiencies for the main target species. Compared to conventional tickler chain beam trawls, pulse trawls were towed at lower speeds (small vessels −10%, large vessels −23%). Large vessels that switched from conventional beam trawls to pulse trawls at the end of 2009 gradually increased catch efficiency for sole over the period of almost 1 year. While pulse trawling was found to have higher catch rates (kg/h) for sole (small vessels +74%, large vessels +17%), lower catch rates were observed for plaice (small vessels −31%, large vessels −32%). Vessels that switched later achieved immediate gains in catch efficiency for sole. The change in catch efficiency is likely due to the difference in cra...","internal_url":"https://www.academia.edu/80166234/Efficiency_changes_in_bottom_trawling_for_flatfish_species_as_a_result_of_the_replacement_of_mechanical_stimulation_by_electric_stimulation","translated_internal_url":"","created_at":"2022-05-29T01:31:42.835-07:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":534684,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":86638681,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/86638681/thumbnails/1.jpg","file_name":"fsaa126.pdf","download_url":"https://www.academia.edu/attachments/86638681/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Efficiency_changes_in_bottom_trawling_fo.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/86638681/fsaa126-libre.pdf?1653813278=\u0026response-content-disposition=attachment%3B+filename%3DEfficiency_changes_in_bottom_trawling_fo.pdf\u0026Expires=1733027989\u0026Signature=RknTBC8zbfu6iHuDcuCJm6g0e~hNQkCUDtDRDT~DsH4qSQ-3r4X-7BWLpwx2QPOteOarEZ1nWMhERx3-C5uPT8iUvsq9PYIrcU~hcX1xL76aAEb8sUjwxINwPt9133vICycPj2PJYEThtdCQr-RuSrR4qA466ZUpwjr-Z~WWEfDSrq89SiI2-F4n1fHdrThZA~p1-kVSrfmlWAhQJTAHVSchDiLlQzr7Un17yjbzMMUaDeA9XU6lszj9VxWNRBkC3XJMtiUfHnZEiUotr00LiVuL5dXmMH1xOlA4E-cNZ10WVuhNZUGVKYevFCGVt-jmMUm0ADnwZs~9A~kcsno2kw__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Efficiency_changes_in_bottom_trawling_for_flatfish_species_as_a_result_of_the_replacement_of_mechanical_stimulation_by_electric_stimulation","translated_slug":"","page_count":11,"language":"en","content_type":"Work","owner":{"id":534684,"first_name":"Jacco","middle_initials":null,"last_name":"van Rijssel","page_name":"JaccovanRijssel","domain_name":"wageningen-ur","created_at":"2011-07-07T01:30:45.155-07:00","display_name":"Jacco van Rijssel","url":"https://wageningen-ur.academia.edu/JaccovanRijssel"},"attachments":[{"id":86638681,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/86638681/thumbnails/1.jpg","file_name":"fsaa126.pdf","download_url":"https://www.academia.edu/attachments/86638681/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Efficiency_changes_in_bottom_trawling_fo.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/86638681/fsaa126-libre.pdf?1653813278=\u0026response-content-disposition=attachment%3B+filename%3DEfficiency_changes_in_bottom_trawling_fo.pdf\u0026Expires=1733027989\u0026Signature=RknTBC8zbfu6iHuDcuCJm6g0e~hNQkCUDtDRDT~DsH4qSQ-3r4X-7BWLpwx2QPOteOarEZ1nWMhERx3-C5uPT8iUvsq9PYIrcU~hcX1xL76aAEb8sUjwxINwPt9133vICycPj2PJYEThtdCQr-RuSrR4qA466ZUpwjr-Z~WWEfDSrq89SiI2-F4n1fHdrThZA~p1-kVSrfmlWAhQJTAHVSchDiLlQzr7Un17yjbzMMUaDeA9XU6lszj9VxWNRBkC3XJMtiUfHnZEiUotr00LiVuL5dXmMH1xOlA4E-cNZ10WVuhNZUGVKYevFCGVt-jmMUm0ADnwZs~9A~kcsno2kw__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":402,"name":"Environmental Science","url":"https://www.academia.edu/Documents/in/Environmental_Science"},{"id":4711,"name":"Fisheries","url":"https://www.academia.edu/Documents/in/Fisheries"},{"id":10001,"name":"Fisheries Management","url":"https://www.academia.edu/Documents/in/Fisheries_Management"},{"id":28235,"name":"Multidisciplinary","url":"https://www.academia.edu/Documents/in/Multidisciplinary"},{"id":170652,"name":"Fisheries Sciences","url":"https://www.academia.edu/Documents/in/Fisheries_Sciences"},{"id":173285,"name":"Fishery","url":"https://www.academia.edu/Documents/in/Fishery"},{"id":243830,"name":"Bottom Trawling","url":"https://www.academia.edu/Documents/in/Bottom_Trawling"},{"id":251651,"name":"Environmental Impact","url":"https://www.academia.edu/Documents/in/Environmental_Impact"},{"id":370794,"name":"Flatfish","url":"https://www.academia.edu/Documents/in/Flatfish"},{"id":531422,"name":"North Sea","url":"https://www.academia.edu/Documents/in/North_Sea"},{"id":782185,"name":"Trawling","url":"https://www.academia.edu/Documents/in/Trawling"},{"id":1523116,"name":"Plaice","url":"https://www.academia.edu/Documents/in/Plaice"}],"urls":[{"id":20877776,"url":"http://academic.oup.com/icesjms/article-pdf/77/7-8/2635/35589045/fsaa126.pdf"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="80166232"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/80166232/Lion_predation_on_livestock_and_native_wildlife_in_Waza_National_Park_northern_Cameroon"><img alt="Research paper thumbnail of Lion predation on livestock and native wildlife in Waza National Park, northern Cameroon" class="work-thumbnail" src="https://attachments.academia-assets.com/86638734/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/80166232/Lion_predation_on_livestock_and_native_wildlife_in_Waza_National_Park_northern_Cameroon">Lion predation on livestock and native wildlife in Waza National Park, northern Cameroon</a></div><div class="wp-workCard_item"><span>mammalia</span><span>, 2013</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="f52f8d5ed83b9ea278c338d6de196323" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":86638734,"asset_id":80166232,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/86638734/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="80166232"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="80166232"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 80166232; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=80166232]").text(description); $(".js-view-count[data-work-id=80166232]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 80166232; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='80166232']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 80166232, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "f52f8d5ed83b9ea278c338d6de196323" } } $('.js-work-strip[data-work-id=80166232]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":80166232,"title":"Lion predation on livestock and native wildlife in Waza National Park, northern Cameroon","translated_title":"","metadata":{"publisher":"Walter de Gruyter GmbH","grobid_abstract":"The feeding ecology of lions (Panthera leo, Linnaeus 1758) was investigated in and around Waza National Park, northern Cameroon. Diet was determined using global positioning system (GPS) data of lion kill sites (clusters of GPS location points) collected using radio collars. Lions consumed 14 different prey species, with five species that were either medium (50-200 kg) or large (\u003e 200 kg) in size forming the bulk of kills. The western kob (Kobus kob kob) was the most common (23.5 %) wild prey of lions, but worryingly livestock (predominantly cattle) constituted as much as 21.6 % of the diet. This creates a conservation problem resulting in lions being killed in retaliation. However, this conflict is strongly exacerbated by herders driving their cattle into the park for forage and water. Wild prey was also consumed outside the park (6.7 %), suggesting excursions beyond the park boundary. Lions showed a preference for wild prey over livestock when relative abundances were considered. Management efforts to reduce livestock intrusion into the park and to reverse the declining trends of wild prey populations would significantly reduce predation of livestock and prevent persecution of lions in this park, but conflict mitigation measures outside the park are also urgently needed.","publication_date":{"day":null,"month":null,"year":2013,"errors":{}},"publication_name":"mammalia","grobid_abstract_attachment_id":86638734},"translated_abstract":null,"internal_url":"https://www.academia.edu/80166232/Lion_predation_on_livestock_and_native_wildlife_in_Waza_National_Park_northern_Cameroon","translated_internal_url":"","created_at":"2022-05-29T01:31:42.631-07:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":534684,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":86638734,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/86638734/thumbnails/1.jpg","file_name":"Tumenta_et_al._2013.pdf","download_url":"https://www.academia.edu/attachments/86638734/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Lion_predation_on_livestock_and_native_w.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/86638734/Tumenta_et_al._2013-libre.pdf?1653813266=\u0026response-content-disposition=attachment%3B+filename%3DLion_predation_on_livestock_and_native_w.pdf\u0026Expires=1733027989\u0026Signature=Y4Ktx172ROYRBoPdTdQ2VhEVe--zes4~xlP3O79QBmWLWXEK2GJDJ9UM-pPs3JtU8OOud1Jp7xX~YLDYmssHOEr4NuVCO7ifkaKtjqHvAnh9bguwdx2QYJDCMij~a3h7PzNOpEjd068l5dHo0pCeuJT6ZRjJBWxsSpuLS91YzT9Pp5Q9pHY0bhxJXGsEDzOiBKMDsG7oRDhlkW0vo5I2TVoQLkaav0PK6P~ofiXHTYw0yxKaiMb3tHf14qQ3FgTW7khufvZ9OWpGMhO-xK4mC7pXMIa7jTD0Yvgrwh~c4DUCsnKxjbxZKc3QEjovEdI~~brBG9Ud5whnOlmQm4geig__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Lion_predation_on_livestock_and_native_wildlife_in_Waza_National_Park_northern_Cameroon","translated_slug":"","page_count":5,"language":"en","content_type":"Work","owner":{"id":534684,"first_name":"Jacco","middle_initials":null,"last_name":"van Rijssel","page_name":"JaccovanRijssel","domain_name":"wageningen-ur","created_at":"2011-07-07T01:30:45.155-07:00","display_name":"Jacco van Rijssel","url":"https://wageningen-ur.academia.edu/JaccovanRijssel"},"attachments":[{"id":86638734,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/86638734/thumbnails/1.jpg","file_name":"Tumenta_et_al._2013.pdf","download_url":"https://www.academia.edu/attachments/86638734/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Lion_predation_on_livestock_and_native_w.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/86638734/Tumenta_et_al._2013-libre.pdf?1653813266=\u0026response-content-disposition=attachment%3B+filename%3DLion_predation_on_livestock_and_native_w.pdf\u0026Expires=1733027989\u0026Signature=Y4Ktx172ROYRBoPdTdQ2VhEVe--zes4~xlP3O79QBmWLWXEK2GJDJ9UM-pPs3JtU8OOud1Jp7xX~YLDYmssHOEr4NuVCO7ifkaKtjqHvAnh9bguwdx2QYJDCMij~a3h7PzNOpEjd068l5dHo0pCeuJT6ZRjJBWxsSpuLS91YzT9Pp5Q9pHY0bhxJXGsEDzOiBKMDsG7oRDhlkW0vo5I2TVoQLkaav0PK6P~ofiXHTYw0yxKaiMb3tHf14qQ3FgTW7khufvZ9OWpGMhO-xK4mC7pXMIa7jTD0Yvgrwh~c4DUCsnKxjbxZKc3QEjovEdI~~brBG9Ud5whnOlmQm4geig__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":173,"name":"Zoology","url":"https://www.academia.edu/Documents/in/Zoology"},{"id":261,"name":"Geography","url":"https://www.academia.edu/Documents/in/Geography"},{"id":7710,"name":"Biology","url":"https://www.academia.edu/Documents/in/Biology"},{"id":55843,"name":"Mammalia","url":"https://www.academia.edu/Documents/in/Mammalia"},{"id":70099,"name":"Livestock","url":"https://www.academia.edu/Documents/in/Livestock"},{"id":88930,"name":"Predation","url":"https://www.academia.edu/Documents/in/Predation"},{"id":113579,"name":"Wildlife","url":"https://www.academia.edu/Documents/in/Wildlife"},{"id":284869,"name":"National Park","url":"https://www.academia.edu/Documents/in/National_Park"}],"urls":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="75592694"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/75592694/Habitat_related_birdsong_divergence_a_multi_level_study_on_the_influence_of_territory_density_and_ambient_noise_in_European_blackbirds"><img alt="Research paper thumbnail of Habitat-related birdsong divergence: a multi-level study on the influence of territory density and ambient noise in European blackbirds" class="work-thumbnail" src="https://attachments.academia-assets.com/83510400/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/75592694/Habitat_related_birdsong_divergence_a_multi_level_study_on_the_influence_of_territory_density_and_ambient_noise_in_European_blackbirds">Habitat-related birdsong divergence: a multi-level study on the influence of territory density and ambient noise in European blackbirds</a></div><div class="wp-workCard_item"><span>Behavioral Ecology and Sociobiology</span><span>, 2009</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="fa31973ea92d14a2cc89f16e42f546b2" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":83510400,"asset_id":75592694,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/83510400/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="75592694"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="75592694"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 75592694; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=75592694]").text(description); $(".js-view-count[data-work-id=75592694]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 75592694; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='75592694']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 75592694, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "fa31973ea92d14a2cc89f16e42f546b2" } } $('.js-work-strip[data-work-id=75592694]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":75592694,"title":"Habitat-related birdsong divergence: a multi-level study on the influence of territory density and ambient noise in European blackbirds","translated_title":"","metadata":{"publisher":"Springer Nature","grobid_abstract":"Song plays an important role in avian communication and acoustic variation is important at both the individual and population level. Habitat-related variation between populations in particular can reflect adaptations to the environment accumulated over generations, but this may not always be the case. In this study, we test whether variation between individuals matches local conditions with respect to noise level and territory density to examine whether short-term flexibility could contribute to song divergence at the population level. We conducted a case study on an urban and forest population of the European blackbird and show divergence at the population level (i.e. across habitats) in blackbird song, anthropogenic noise level and territory density. Unlike in several other species, we found a lack of any correlation at the individual level (i.e. across individuals) between song features and ambient noise. This suggests species-specific causal explanations for noisedependent song differentiation which are likely associated with variation in song-copying behaviour or feedback constraints related to variable singing styles. On the other hand, we found that at the level of individual territories, temporal features, but not spectral ones, are correlated to territory density and seasonality. This suggests that shortterm individual variation can indeed contribute to habitatdependent divergence at the population level. As this may undermine the potential role for song as a population marker, we conclude that more investigations on individual song flexibility are required for a better understanding of the impact of population-level song divergence on hybridisation and speciation.","publication_date":{"day":null,"month":null,"year":2009,"errors":{}},"publication_name":"Behavioral Ecology and Sociobiology","grobid_abstract_attachment_id":83510400},"translated_abstract":null,"internal_url":"https://www.academia.edu/75592694/Habitat_related_birdsong_divergence_a_multi_level_study_on_the_influence_of_territory_density_and_ambient_noise_in_European_blackbirds","translated_internal_url":"","created_at":"2022-04-05T23:05:32.559-07:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":534684,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":83510400,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/83510400/thumbnails/1.jpg","file_name":"Habitat-related_birdsong_divergence_a_mu20220408-28828-1jj5gcu.pdf","download_url":"https://www.academia.edu/attachments/83510400/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Habitat_related_birdsong_divergence_a_mu.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/83510400/Habitat-related_birdsong_divergence_a_mu20220408-28828-1jj5gcu.pdf?1649471215=\u0026response-content-disposition=attachment%3B+filename%3DHabitat_related_birdsong_divergence_a_mu.pdf\u0026Expires=1733027989\u0026Signature=Z7Kg-eF5WU6FrYCD8M3Ee50h0g3M-DwrFoayqXdnyk6y33R7hUDhBGGlJSuJJASapzYzhVtdIecOFApPQoFyA-~aWxSEiolmp3PSgERK7td9Jl9D2JIfe6vjabJumftP~hm34P2TP6Zc0S5TU9~yjK4oTACtr~~27j003C3HlPwSuHeHWCDo5nlj4uDVedJOLYULIYOBfbNKG8WfBgWED1MrMdvsEDIl1831Ipn1yYbaRBtG3aZroF50nJDc0ILE~Z5MQZeHHMU~oK0o8TLs6qObqI46oYHok3QdGVyz1ZBFlLb9JVDd2Ft-WWk9vdWEpdYCoE6MJjVObslghTK0dw__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Habitat_related_birdsong_divergence_a_multi_level_study_on_the_influence_of_territory_density_and_ambient_noise_in_European_blackbirds","translated_slug":"","page_count":10,"language":"en","content_type":"Work","owner":{"id":534684,"first_name":"Jacco","middle_initials":null,"last_name":"van Rijssel","page_name":"JaccovanRijssel","domain_name":"wageningen-ur","created_at":"2011-07-07T01:30:45.155-07:00","display_name":"Jacco van Rijssel","url":"https://wageningen-ur.academia.edu/JaccovanRijssel"},"attachments":[{"id":83510400,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/83510400/thumbnails/1.jpg","file_name":"Habitat-related_birdsong_divergence_a_mu20220408-28828-1jj5gcu.pdf","download_url":"https://www.academia.edu/attachments/83510400/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Habitat_related_birdsong_divergence_a_mu.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/83510400/Habitat-related_birdsong_divergence_a_mu20220408-28828-1jj5gcu.pdf?1649471215=\u0026response-content-disposition=attachment%3B+filename%3DHabitat_related_birdsong_divergence_a_mu.pdf\u0026Expires=1733027989\u0026Signature=Z7Kg-eF5WU6FrYCD8M3Ee50h0g3M-DwrFoayqXdnyk6y33R7hUDhBGGlJSuJJASapzYzhVtdIecOFApPQoFyA-~aWxSEiolmp3PSgERK7td9Jl9D2JIfe6vjabJumftP~hm34P2TP6Zc0S5TU9~yjK4oTACtr~~27j003C3HlPwSuHeHWCDo5nlj4uDVedJOLYULIYOBfbNKG8WfBgWED1MrMdvsEDIl1831Ipn1yYbaRBtG3aZroF50nJDc0ILE~Z5MQZeHHMU~oK0o8TLs6qObqI46oYHok3QdGVyz1ZBFlLb9JVDd2Ft-WWk9vdWEpdYCoE6MJjVObslghTK0dw__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":25730,"name":"Behavioral Ecology","url":"https://www.academia.edu/Documents/in/Behavioral_Ecology"},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences"},{"id":57433,"name":"Seasonality","url":"https://www.academia.edu/Documents/in/Seasonality"},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences"},{"id":96047,"name":"Case Study","url":"https://www.academia.edu/Documents/in/Case_Study"},{"id":198377,"name":"Individual variation","url":"https://www.academia.edu/Documents/in/Individual_variation"},{"id":2464435,"name":"Ambient Noise","url":"https://www.academia.edu/Documents/in/Ambient_Noise"}],"urls":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="74327573"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/74327573/Historical_Perspectives_and_Trends_in_Fisheries_Research_in_Tanzania"><img alt="Research paper thumbnail of Historical Perspectives and Trends in Fisheries Research in Tanzania" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/74327573/Historical_Perspectives_and_Trends_in_Fisheries_Research_in_Tanzania">Historical Perspectives and Trends in Fisheries Research in Tanzania</a></div><div class="wp-workCard_item"><span>Lake Victoria Fisheries Resources</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">This chapter traces the history and trends in fisheries research for the Tanzanian part of Lake V...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">This chapter traces the history and trends in fisheries research for the Tanzanian part of Lake Victoria and its basin back to the late nineteenth century when the haplochromine species were scientifically identified for the first time. Past studies in the early to mid-twentieth century were mainly designed to address issues related to the introduced species and the abundant haplochromines. Subsequent studies in the late twentieth to early twenty-first centuries integrated multiple disciplines such as fish biology, ecology, biodiversity, limnology, socio-economics and aquaculture. In the late 1990s and early 2000s, lake-wide research projects played a key role in further understanding of the lake-basin flora, fauna and related fisheries. Over the last half century, Lake Victoria has undergone dramatic ecosystem changes, partly driven by the introduction of the predatory Nile perch and the non-indigenous tilapiine species in the 1950s and early 1960s. The profound ecosystem transformation of the lake has also been attributed to cultural eutrophication, climatic variability and over-fishing. In the mid-1950s, the lake had a diverse fish fauna, which was thought to comprise about 29 genera and more than 650 species, with the haplochromines forming about 80% of the demersal fish stocks. Later discoveries in the early 1970s to the late 1990s confirmed that the haplochromine group alone consisted of over 500 endemic species. The introduction of the Nile perch was meant to utilize the abundant haplochromines that were considered commercially unimportant, and to extend fishing operations from the inshore to deeper offshore waters.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="74327573"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="74327573"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 74327573; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=74327573]").text(description); $(".js-view-count[data-work-id=74327573]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 74327573; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='74327573']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 74327573, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=74327573]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":74327573,"title":"Historical Perspectives and Trends in Fisheries Research in Tanzania","translated_title":"","metadata":{"abstract":"This chapter traces the history and trends in fisheries research for the Tanzanian part of Lake Victoria and its basin back to the late nineteenth century when the haplochromine species were scientifically identified for the first time. Past studies in the early to mid-twentieth century were mainly designed to address issues related to the introduced species and the abundant haplochromines. Subsequent studies in the late twentieth to early twenty-first centuries integrated multiple disciplines such as fish biology, ecology, biodiversity, limnology, socio-economics and aquaculture. In the late 1990s and early 2000s, lake-wide research projects played a key role in further understanding of the lake-basin flora, fauna and related fisheries. Over the last half century, Lake Victoria has undergone dramatic ecosystem changes, partly driven by the introduction of the predatory Nile perch and the non-indigenous tilapiine species in the 1950s and early 1960s. The profound ecosystem transformation of the lake has also been attributed to cultural eutrophication, climatic variability and over-fishing. In the mid-1950s, the lake had a diverse fish fauna, which was thought to comprise about 29 genera and more than 650 species, with the haplochromines forming about 80% of the demersal fish stocks. Later discoveries in the early 1970s to the late 1990s confirmed that the haplochromine group alone consisted of over 500 endemic species. The introduction of the Nile perch was meant to utilize the abundant haplochromines that were considered commercially unimportant, and to extend fishing operations from the inshore to deeper offshore waters.","publisher":"Springer International Publishing","publication_name":"Lake Victoria Fisheries Resources"},"translated_abstract":"This chapter traces the history and trends in fisheries research for the Tanzanian part of Lake Victoria and its basin back to the late nineteenth century when the haplochromine species were scientifically identified for the first time. Past studies in the early to mid-twentieth century were mainly designed to address issues related to the introduced species and the abundant haplochromines. Subsequent studies in the late twentieth to early twenty-first centuries integrated multiple disciplines such as fish biology, ecology, biodiversity, limnology, socio-economics and aquaculture. In the late 1990s and early 2000s, lake-wide research projects played a key role in further understanding of the lake-basin flora, fauna and related fisheries. Over the last half century, Lake Victoria has undergone dramatic ecosystem changes, partly driven by the introduction of the predatory Nile perch and the non-indigenous tilapiine species in the 1950s and early 1960s. The profound ecosystem transformation of the lake has also been attributed to cultural eutrophication, climatic variability and over-fishing. In the mid-1950s, the lake had a diverse fish fauna, which was thought to comprise about 29 genera and more than 650 species, with the haplochromines forming about 80% of the demersal fish stocks. Later discoveries in the early 1970s to the late 1990s confirmed that the haplochromine group alone consisted of over 500 endemic species. The introduction of the Nile perch was meant to utilize the abundant haplochromines that were considered commercially unimportant, and to extend fishing operations from the inshore to deeper offshore waters.","internal_url":"https://www.academia.edu/74327573/Historical_Perspectives_and_Trends_in_Fisheries_Research_in_Tanzania","translated_internal_url":"","created_at":"2022-03-22T13:04:08.528-07:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":534684,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[],"slug":"Historical_Perspectives_and_Trends_in_Fisheries_Research_in_Tanzania","translated_slug":"","page_count":null,"language":"en","content_type":"Work","owner":{"id":534684,"first_name":"Jacco","middle_initials":null,"last_name":"van Rijssel","page_name":"JaccovanRijssel","domain_name":"wageningen-ur","created_at":"2011-07-07T01:30:45.155-07:00","display_name":"Jacco van Rijssel","url":"https://wageningen-ur.academia.edu/JaccovanRijssel"},"attachments":[],"research_interests":[{"id":261,"name":"Geography","url":"https://www.academia.edu/Documents/in/Geography"},{"id":4711,"name":"Fisheries","url":"https://www.academia.edu/Documents/in/Fisheries"},{"id":10001,"name":"Fisheries Management","url":"https://www.academia.edu/Documents/in/Fisheries_Management"},{"id":26181,"name":"Eutrophication","url":"https://www.academia.edu/Documents/in/Eutrophication"},{"id":216604,"name":"Cichlidae","url":"https://www.academia.edu/Documents/in/Cichlidae"},{"id":332276,"name":"Tilapia","url":"https://www.academia.edu/Documents/in/Tilapia"},{"id":348966,"name":"Lake Victoria","url":"https://www.academia.edu/Documents/in/Lake_Victoria"},{"id":613425,"name":"Nile Perch","url":"https://www.academia.edu/Documents/in/Nile_Perch"},{"id":845700,"name":"lake Victoria cichlids","url":"https://www.academia.edu/Documents/in/lake_Victoria_cichlids"}],"urls":[{"id":18713179,"url":"http://link.springer.com/content/pdf/10.1007/978-3-319-69656-0_2"}]}, dispatcherData: dispatcherData }); 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phylogeography and ecology of Oreochromis hunteri and its invasive relatives</a></div><div class="wp-workCard_item"><span>Hydrobiologia</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="62fe0e18800f2ffbd5faac1b2826dc75" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":82518301,"asset_id":74327572,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/82518301/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="74327572"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="74327572"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 74327572; 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In many cases when \"Tilapia\" were introduced for economic reasons to catchments that were home to other, often endemic, Oreochromis species, the loss of native species followed. Oreochromis hunteri is an endemic species of Crater Lake Chala on the slopes of Mount Kilimanjaro, and is part of a small species flock in the upper Pangani drainage system of Tanzania. We identified three native and three invasive Oreochromis species in the region. Reconstructing their phylogeography we found that O. hunteri is closely related to, but distinct from the other members of the upper Pangani flock. However, we found a second, genetically and phenotypically distinct Oreochromis species in Lake Chala whose origin we cannot fully resolve. Our ecological and ecomorphological investigations revealed that the endemic O. hunteri is currently rare in the lake, outnumbered by each of three invasive cichlid species. It is mitochondrially, phenotypically and trophically distinct from all others. The occurrence of the formerly abundant O. hunteri in such small numbers, its narrow habitat restriction and its limited morphological variability suggest recent population decline and loss of niche breadth in this critically endangered endemic cichlid species.","publication_name":"Hydrobiologia","grobid_abstract_attachment_id":82518301},"translated_abstract":null,"internal_url":"https://www.academia.edu/74327572/The_origin_and_future_of_an_endangered_crater_lake_endemic_phylogeography_and_ecology_of_Oreochromis_hunteri_and_its_invasive_relatives","translated_internal_url":"","created_at":"2022-03-22T13:04:08.303-07:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":534684,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":82518301,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/82518301/thumbnails/1.jpg","file_name":"Moser_20et_20al._202018_20Hydrobiologia_20Lake_20Chala_accepted_20version.pdf","download_url":"https://www.academia.edu/attachments/82518301/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM4OSw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"The_origin_and_future_of_an_endangered_c.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/82518301/Moser_20et_20al._202018_20Hydrobiologia_20Lake_20Chala_accepted_20version-libre.pdf?1647980143=\u0026response-content-disposition=attachment%3B+filename%3DThe_origin_and_future_of_an_endangered_c.pdf\u0026Expires=1733027989\u0026Signature=E6SRoEzdRTmH40IgphO7gvUbeW4hneUYDoHdoj8SRynfR6mUOmb~L2bEzO~137G2W4F2aV5sff-3-Y8MPbXYHrSbWCPzsUZjteUfkfjjUcrcOGcz1jVEEemrOg3AmZcOFftoxdkkfvP098EjM9ne5Q6dCCvYHsufeHCBFdXMtFA9sFEZtqRgLu64r56mz3jc~V3~q2P01eZPIQuU5lOuGF5DDTdXQGzUjB3WQgVmPZOOZ-t6mDYiw0yeHdP-4gi~CG1fv01aYu4j7yo9b2Tb32GBJCSjBKpYlqDHnNgEChMoh0QdVGY35HdvqTI0Q4wT8yQ7-fX2RGFenUxIkh4A~g__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"The_origin_and_future_of_an_endangered_crater_lake_endemic_phylogeography_and_ecology_of_Oreochromis_hunteri_and_its_invasive_relatives","translated_slug":"","page_count":27,"language":"en","content_type":"Work","owner":{"id":534684,"first_name":"Jacco","middle_initials":null,"last_name":"van Rijssel","page_name":"JaccovanRijssel","domain_name":"wageningen-ur","created_at":"2011-07-07T01:30:45.155-07:00","display_name":"Jacco van 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Sciences","url":"https://www.academia.edu/Documents/in/Earth_Sciences"},{"id":7710,"name":"Biology","url":"https://www.academia.edu/Documents/in/Biology"},{"id":11870,"name":"Invasive Species","url":"https://www.academia.edu/Documents/in/Invasive_Species"},{"id":11874,"name":"Endemism","url":"https://www.academia.edu/Documents/in/Endemism"},{"id":23979,"name":"Endangered Species","url":"https://www.academia.edu/Documents/in/Endangered_Species"},{"id":41843,"name":"Ecomorphology","url":"https://www.academia.edu/Documents/in/Ecomorphology"},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences"},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences"},{"id":216604,"name":"Cichlidae","url":"https://www.academia.edu/Documents/in/Cichlidae"},{"id":332276,"name":"Tilapia","url":"https://www.academia.edu/Documents/in/Tilapia"},{"id":1129239,"name":"Crater Lakes","url":"https://www.academia.edu/Documents/in/Crater_Lakes"},{"id":1303937,"name":"East African cichlids","url":"https://www.academia.edu/Documents/in/East_African_cichlids"},{"id":2531189,"name":"Biological competition","url":"https://www.academia.edu/Documents/in/Biological_competition"}],"urls":[{"id":18713178,"url":"http://link.springer.com/article/10.1007/s10750-018-3780-z/fulltext.html"}]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="74327571"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/74327571/The_onset_of_ecological_diversification_50_years_after_colonization_of_a_crater_lake_by_haplochromine_cichlid_fishes"><img alt="Research paper thumbnail of The onset of ecological diversification 50 years after colonization of a crater lake by haplochromine cichlid fishes" class="work-thumbnail" src="https://attachments.academia-assets.com/82518300/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/74327571/The_onset_of_ecological_diversification_50_years_after_colonization_of_a_crater_lake_by_haplochromine_cichlid_fishes">The onset of ecological diversification 50 years after colonization of a crater lake by haplochromine cichlid fishes</a></div><div class="wp-workCard_item"><span>Proceedings. Biological sciences</span><span>, Jan 15, 2018</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Adaptive radiation research typically relies on the study of evolution in retrospective, leaving ...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Adaptive radiation research typically relies on the study of evolution in retrospective, leaving the predictive value of the concept hard to evaluate. Several radiations, including the cichlid fishes in the East African Great Lakes, have been studied extensively, yet no study has investigated the onset of the intraspecific processes of niche expansion and differentiation shortly after colonization of an adaptive zone by cichlids. Haplochromine cichlids of one of the two lineages that seeded the Lake Victoria radiation recently arrived in Lake Chala, a lake perfectly suited for within-lake cichlid speciation. Here, we infer the colonization and demographic history, quantify phenotypic, ecological and genomic diversity and diversification, and investigate the selection regime to ask if the population shows signs of diversification resembling the onset of adaptive radiation. We find that since their arrival in the lake, haplochromines have colonized a wide range of depth habitats assoc...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="d02984408438f5d877dff3673ca08a71" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":82518300,"asset_id":74327571,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/82518300/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="74327571"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="74327571"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 74327571; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=74327571]").text(description); $(".js-view-count[data-work-id=74327571]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 74327571; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='74327571']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 74327571, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "d02984408438f5d877dff3673ca08a71" } } $('.js-work-strip[data-work-id=74327571]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":74327571,"title":"The onset of ecological diversification 50 years after colonization of a crater lake by haplochromine cichlid fishes","translated_title":"","metadata":{"abstract":"Adaptive radiation research typically relies on the study of evolution in retrospective, leaving the predictive value of the concept hard to evaluate. Several radiations, including the cichlid fishes in the East African Great Lakes, have been studied extensively, yet no study has investigated the onset of the intraspecific processes of niche expansion and differentiation shortly after colonization of an adaptive zone by cichlids. Haplochromine cichlids of one of the two lineages that seeded the Lake Victoria radiation recently arrived in Lake Chala, a lake perfectly suited for within-lake cichlid speciation. Here, we infer the colonization and demographic history, quantify phenotypic, ecological and genomic diversity and diversification, and investigate the selection regime to ask if the population shows signs of diversification resembling the onset of adaptive radiation. We find that since their arrival in the lake, haplochromines have colonized a wide range of depth habitats assoc...","publication_date":{"day":15,"month":1,"year":2018,"errors":{}},"publication_name":"Proceedings. Biological sciences"},"translated_abstract":"Adaptive radiation research typically relies on the study of evolution in retrospective, leaving the predictive value of the concept hard to evaluate. Several radiations, including the cichlid fishes in the East African Great Lakes, have been studied extensively, yet no study has investigated the onset of the intraspecific processes of niche expansion and differentiation shortly after colonization of an adaptive zone by cichlids. Haplochromine cichlids of one of the two lineages that seeded the Lake Victoria radiation recently arrived in Lake Chala, a lake perfectly suited for within-lake cichlid speciation. Here, we infer the colonization and demographic history, quantify phenotypic, ecological and genomic diversity and diversification, and investigate the selection regime to ask if the population shows signs of diversification resembling the onset of adaptive radiation. We find that since their arrival in the lake, haplochromines have colonized a wide range of depth habitats assoc...","internal_url":"https://www.academia.edu/74327571/The_onset_of_ecological_diversification_50_years_after_colonization_of_a_crater_lake_by_haplochromine_cichlid_fishes","translated_internal_url":"","created_at":"2022-03-22T13:04:08.159-07:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":534684,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":82518300,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/82518300/thumbnails/1.jpg","file_name":"rspb.2018.pdf","download_url":"https://www.academia.edu/attachments/82518300/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"The_onset_of_ecological_diversification.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/82518300/rspb.2018-libre.pdf?1647980132=\u0026response-content-disposition=attachment%3B+filename%3DThe_onset_of_ecological_diversification.pdf\u0026Expires=1733027989\u0026Signature=f-E5O-tLB26xYXm2VdXWAWvl0BpAjSjLaV8vLCms5JjfTPXTAhUKNv9Je3pu7~DedGzo3JH7Sj2wHie2GpWmYDbqWrCFpCYs01pcZtbFieK2agvZHzzXUSTTUkCDL6Qd4mRWhfoJnwtFq0K6heYjBC99CH36DXR2KDf3736lwF1PzT8wUS2A9a-7ukaf7NXgvNMK8ObPe9s1WuZfaQNzXlZcy2hIL1oNfhlS96N~v~uho1x~PhktcHFgtnhS7EdM5xoZqahswIyMBn1Ly27q0utuoA8yP9~ceL7Xf-5MXhEcDhtG6ccKkGkGbv91gu3ja0YCzRWJTeUCvD~SIx287A__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"The_onset_of_ecological_diversification_50_years_after_colonization_of_a_crater_lake_by_haplochromine_cichlid_fishes","translated_slug":"","page_count":10,"language":"en","content_type":"Work","owner":{"id":534684,"first_name":"Jacco","middle_initials":null,"last_name":"van Rijssel","page_name":"JaccovanRijssel","domain_name":"wageningen-ur","created_at":"2011-07-07T01:30:45.155-07:00","display_name":"Jacco van Rijssel","url":"https://wageningen-ur.academia.edu/JaccovanRijssel"},"attachments":[{"id":82518300,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/82518300/thumbnails/1.jpg","file_name":"rspb.2018.pdf","download_url":"https://www.academia.edu/attachments/82518300/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"The_onset_of_ecological_diversification.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/82518300/rspb.2018-libre.pdf?1647980132=\u0026response-content-disposition=attachment%3B+filename%3DThe_onset_of_ecological_diversification.pdf\u0026Expires=1733027989\u0026Signature=f-E5O-tLB26xYXm2VdXWAWvl0BpAjSjLaV8vLCms5JjfTPXTAhUKNv9Je3pu7~DedGzo3JH7Sj2wHie2GpWmYDbqWrCFpCYs01pcZtbFieK2agvZHzzXUSTTUkCDL6Qd4mRWhfoJnwtFq0K6heYjBC99CH36DXR2KDf3736lwF1PzT8wUS2A9a-7ukaf7NXgvNMK8ObPe9s1WuZfaQNzXlZcy2hIL1oNfhlS96N~v~uho1x~PhktcHFgtnhS7EdM5xoZqahswIyMBn1Ly27q0utuoA8yP9~ceL7Xf-5MXhEcDhtG6ccKkGkGbv91gu3ja0YCzRWJTeUCvD~SIx287A__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":3216,"name":"Genomics","url":"https://www.academia.edu/Documents/in/Genomics"},{"id":7710,"name":"Biology","url":"https://www.academia.edu/Documents/in/Biology"},{"id":9846,"name":"Ecology","url":"https://www.academia.edu/Documents/in/Ecology"},{"id":10866,"name":"Morphology","url":"https://www.academia.edu/Documents/in/Morphology"},{"id":10882,"name":"Evolution","url":"https://www.academia.edu/Documents/in/Evolution"},{"id":18594,"name":"Evolutionary Ecology","url":"https://www.academia.edu/Documents/in/Evolutionary_Ecology"},{"id":26327,"name":"Medicine","url":"https://www.academia.edu/Documents/in/Medicine"},{"id":40422,"name":"Natural Selection","url":"https://www.academia.edu/Documents/in/Natural_Selection"},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences"},{"id":60960,"name":"Adaptive Radiation","url":"https://www.academia.edu/Documents/in/Adaptive_Radiation"},{"id":216604,"name":"Cichlidae","url":"https://www.academia.edu/Documents/in/Cichlidae"},{"id":241716,"name":"Incipient Speciation","url":"https://www.academia.edu/Documents/in/Incipient_Speciation"},{"id":1129239,"name":"Crater Lakes","url":"https://www.academia.edu/Documents/in/Crater_Lakes"},{"id":1285919,"name":"Fitness Landscapes","url":"https://www.academia.edu/Documents/in/Fitness_Landscapes"},{"id":1303941,"name":"Disruptive Selection","url":"https://www.academia.edu/Documents/in/Disruptive_Selection"},{"id":3763225,"name":"Medical and Health Sciences","url":"https://www.academia.edu/Documents/in/Medical_and_Health_Sciences"}],"urls":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="74327570"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/74327570/Prevalence_of_disruptive_selection_predicts_extent_of_species_differentiation_in_Lake_Victoria_cichlids"><img alt="Research paper thumbnail of Prevalence of disruptive selection predicts extent of species differentiation in Lake Victoria cichlids" class="work-thumbnail" src="https://attachments.academia-assets.com/82518299/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/74327570/Prevalence_of_disruptive_selection_predicts_extent_of_species_differentiation_in_Lake_Victoria_cichlids">Prevalence of disruptive selection predicts extent of species differentiation in Lake Victoria cichlids</a></div><div class="wp-workCard_item"><span>Proceedings. Biological sciences</span><span>, Jan 31, 2018</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Theory suggests that speciation with gene flow is most likely when both sexual and ecological sel...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Theory suggests that speciation with gene flow is most likely when both sexual and ecological selection are divergent or disruptive. Divergent sexual and natural selection on the visual system have been demonstrated before in sympatric, morphologically similar sister species of Lake Victoria cichlids, but this does not explain the subtle morphological differences between them. To investigate the significance of natural selection on morphology during speciation, we here ask whether the prevalence of disruptive ecological selection differs between sympatric sister species that are at different stages of speciation. Some of our species pairs do () and others do not () differ distinctively in sexually selected male nuptial coloration. We find that (i) evidence for disruptive selection, and for evolutionary response to it, is prevalent in traits that are differentiated between sister species; (ii) prevalence of both predicts the extent of genetic differentiation; and (iii) genetic differ...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="199949f35ca18726194370e440b38867" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":82518299,"asset_id":74327570,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/82518299/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="74327570"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="74327570"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 74327570; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=74327570]").text(description); $(".js-view-count[data-work-id=74327570]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 74327570; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='74327570']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 74327570, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "199949f35ca18726194370e440b38867" } } $('.js-work-strip[data-work-id=74327570]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":74327570,"title":"Prevalence of disruptive selection predicts extent of species differentiation in Lake Victoria cichlids","translated_title":"","metadata":{"abstract":"Theory suggests that speciation with gene flow is most likely when both sexual and ecological selection are divergent or disruptive. Divergent sexual and natural selection on the visual system have been demonstrated before in sympatric, morphologically similar sister species of Lake Victoria cichlids, but this does not explain the subtle morphological differences between them. To investigate the significance of natural selection on morphology during speciation, we here ask whether the prevalence of disruptive ecological selection differs between sympatric sister species that are at different stages of speciation. Some of our species pairs do () and others do not () differ distinctively in sexually selected male nuptial coloration. We find that (i) evidence for disruptive selection, and for evolutionary response to it, is prevalent in traits that are differentiated between sister species; (ii) prevalence of both predicts the extent of genetic differentiation; and (iii) genetic differ...","publication_date":{"day":31,"month":1,"year":2018,"errors":{}},"publication_name":"Proceedings. Biological sciences"},"translated_abstract":"Theory suggests that speciation with gene flow is most likely when both sexual and ecological selection are divergent or disruptive. Divergent sexual and natural selection on the visual system have been demonstrated before in sympatric, morphologically similar sister species of Lake Victoria cichlids, but this does not explain the subtle morphological differences between them. To investigate the significance of natural selection on morphology during speciation, we here ask whether the prevalence of disruptive ecological selection differs between sympatric sister species that are at different stages of speciation. Some of our species pairs do () and others do not () differ distinctively in sexually selected male nuptial coloration. We find that (i) evidence for disruptive selection, and for evolutionary response to it, is prevalent in traits that are differentiated between sister species; (ii) prevalence of both predicts the extent of genetic differentiation; and (iii) genetic differ...","internal_url":"https://www.academia.edu/74327570/Prevalence_of_disruptive_selection_predicts_extent_of_species_differentiation_in_Lake_Victoria_cichlids","translated_internal_url":"","created_at":"2022-03-22T13:04:08.017-07:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":534684,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":82518299,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/82518299/thumbnails/1.jpg","file_name":"rspb.2017.pdf","download_url":"https://www.academia.edu/attachments/82518299/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Prevalence_of_disruptive_selection_predi.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/82518299/rspb.2017-libre.pdf?1647980133=\u0026response-content-disposition=attachment%3B+filename%3DPrevalence_of_disruptive_selection_predi.pdf\u0026Expires=1733027990\u0026Signature=LOQ9mkZr~Py5n7lyvx9CTDh0gg2cBFFeaip~EJmSKFRJsjOm5-tCqPsZ6C2Q2E4AOdWA6EtlQPlUBad8wgDh7pNUHxFTQyJwbsPUNTmFjQOox8HgZlN7k2p6koP8-8xagOrjZuNirz8G46fsxu89HHshpkpCUz0~Srr3q7XI9n1ERLKNyuODhd4Ir8vj4TjMlorIPOUNar0tYwkp3oCPKq79JdoMPCSf2xcbFNCWAeieJnbHURIbb43QthJq5FbUekmj0yfrIaI7qD0f5RUZFwngGNe4atYUWF6nGoD83FtIZLIN-~y6MGznKlVTN0ToZkOsp99ObeBcqavbxdQCoQ__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Prevalence_of_disruptive_selection_predicts_extent_of_species_differentiation_in_Lake_Victoria_cichlids","translated_slug":"","page_count":10,"language":"en","content_type":"Work","owner":{"id":534684,"first_name":"Jacco","middle_initials":null,"last_name":"van Rijssel","page_name":"JaccovanRijssel","domain_name":"wageningen-ur","created_at":"2011-07-07T01:30:45.155-07:00","display_name":"Jacco van Rijssel","url":"https://wageningen-ur.academia.edu/JaccovanRijssel"},"attachments":[{"id":82518299,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/82518299/thumbnails/1.jpg","file_name":"rspb.2017.pdf","download_url":"https://www.academia.edu/attachments/82518299/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Prevalence_of_disruptive_selection_predi.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/82518299/rspb.2017-libre.pdf?1647980133=\u0026response-content-disposition=attachment%3B+filename%3DPrevalence_of_disruptive_selection_predi.pdf\u0026Expires=1733027990\u0026Signature=LOQ9mkZr~Py5n7lyvx9CTDh0gg2cBFFeaip~EJmSKFRJsjOm5-tCqPsZ6C2Q2E4AOdWA6EtlQPlUBad8wgDh7pNUHxFTQyJwbsPUNTmFjQOox8HgZlN7k2p6koP8-8xagOrjZuNirz8G46fsxu89HHshpkpCUz0~Srr3q7XI9n1ERLKNyuODhd4Ir8vj4TjMlorIPOUNar0tYwkp3oCPKq79JdoMPCSf2xcbFNCWAeieJnbHURIbb43QthJq5FbUekmj0yfrIaI7qD0f5RUZFwngGNe4atYUWF6nGoD83FtIZLIN-~y6MGznKlVTN0ToZkOsp99ObeBcqavbxdQCoQ__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":4310,"name":"Speciation","url":"https://www.academia.edu/Documents/in/Speciation"},{"id":4313,"name":"Gene Flow","url":"https://www.academia.edu/Documents/in/Gene_Flow"},{"id":7044,"name":"Sexual Selection","url":"https://www.academia.edu/Documents/in/Sexual_Selection"},{"id":10866,"name":"Morphology","url":"https://www.academia.edu/Documents/in/Morphology"},{"id":40422,"name":"Natural Selection","url":"https://www.academia.edu/Documents/in/Natural_Selection"},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences"},{"id":216604,"name":"Cichlidae","url":"https://www.academia.edu/Documents/in/Cichlidae"},{"id":280861,"name":"Character Displacement","url":"https://www.academia.edu/Documents/in/Character_Displacement"},{"id":319956,"name":"Genetic Differentiation","url":"https://www.academia.edu/Documents/in/Genetic_Differentiation"},{"id":348966,"name":"Lake Victoria","url":"https://www.academia.edu/Documents/in/Lake_Victoria"},{"id":1285919,"name":"Fitness Landscapes","url":"https://www.academia.edu/Documents/in/Fitness_Landscapes"},{"id":1303941,"name":"Disruptive Selection","url":"https://www.academia.edu/Documents/in/Disruptive_Selection"},{"id":3763225,"name":"Medical and Health Sciences","url":"https://www.academia.edu/Documents/in/Medical_and_Health_Sciences"}],"urls":[]}, dispatcherData: dispatcherData }); 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="74327568"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/74327568/Climatic_variability_in_combination_with_eutrophication_drives_adaptive_responses_in_the_gills_of_Lake_Victoria_cichlids"><img alt="Research paper thumbnail of Climatic variability in combination with eutrophication drives adaptive responses in the gills of Lake Victoria cichlids" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/74327568/Climatic_variability_in_combination_with_eutrophication_drives_adaptive_responses_in_the_gills_of_Lake_Victoria_cichlids">Climatic variability in combination with eutrophication drives adaptive responses in the gills of Lake Victoria cichlids</a></div><div class="wp-workCard_item"><span>Oecologia</span><span>, 2016</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Textbook examples of adaptive radiation often show rapid morphological changes in response to env...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Textbook examples of adaptive radiation often show rapid morphological changes in response to environmental perturbations. East Africa&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s Lake Victoria, famous for its stunning adaptive radiation of cichlids, has suffered from human-induced eutrophication over the past decades. This cultural eutrophication is thought to be partly responsible for the dramatically reduced cichlid biodiversity, but climatic variability in itself might also have contributed to the eutrophication which resulted in low oxygen levels and decreased water transparency. To determine how recent environmental changes have influenced the lake and its cichlids over the past 50 years, we gathered environmental and meteorological variables and compared these with gill surface area of four cichlid species. We found that during the period of severe eutrophication and temperature increase (1980s), reduced wind speeds coincided with a reduction in oxygen levels and a decrease in both water temperature and transparency. The gill surface area in three out of the four cichlid species increased during this period which is consistent with adaptive change in response to increased hypoxia. During the 2000s, wind speeds, oxygen levels, water transparency and water temperature increased again, while cichlid gill surface area decreased. Our results imply that climatic changes and especially wind speed and direction might play a crucial role in tropical lake dynamics. The changes in Lake Victoria&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s water quality coincide with fluctuations in cichlid gill surface area, suggesting that these fish can respond rapidly to environmental perturbations, but also that climatic variability, together with continued eutrophication, might be detrimental to the lake&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s cichlid biodiversity.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="74327568"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="74327568"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 74327568; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=74327568]").text(description); $(".js-view-count[data-work-id=74327568]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 74327568; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='74327568']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 74327568, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=74327568]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":74327568,"title":"Climatic variability in combination with eutrophication drives adaptive responses in the gills of Lake Victoria cichlids","translated_title":"","metadata":{"abstract":"Textbook examples of adaptive radiation often show rapid morphological changes in response to environmental perturbations. East Africa\u0026amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s Lake Victoria, famous for its stunning adaptive radiation of cichlids, has suffered from human-induced eutrophication over the past decades. This cultural eutrophication is thought to be partly responsible for the dramatically reduced cichlid biodiversity, but climatic variability in itself might also have contributed to the eutrophication which resulted in low oxygen levels and decreased water transparency. To determine how recent environmental changes have influenced the lake and its cichlids over the past 50 years, we gathered environmental and meteorological variables and compared these with gill surface area of four cichlid species. We found that during the period of severe eutrophication and temperature increase (1980s), reduced wind speeds coincided with a reduction in oxygen levels and a decrease in both water temperature and transparency. The gill surface area in three out of the four cichlid species increased during this period which is consistent with adaptive change in response to increased hypoxia. During the 2000s, wind speeds, oxygen levels, water transparency and water temperature increased again, while cichlid gill surface area decreased. Our results imply that climatic changes and especially wind speed and direction might play a crucial role in tropical lake dynamics. The changes in Lake Victoria\u0026amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s water quality coincide with fluctuations in cichlid gill surface area, suggesting that these fish can respond rapidly to environmental perturbations, but also that climatic variability, together with continued eutrophication, might be detrimental to the lake\u0026amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s cichlid biodiversity.","publisher":"Springer Nature","publication_date":{"day":null,"month":null,"year":2016,"errors":{}},"publication_name":"Oecologia"},"translated_abstract":"Textbook examples of adaptive radiation often show rapid morphological changes in response to environmental perturbations. East Africa\u0026amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s Lake Victoria, famous for its stunning adaptive radiation of cichlids, has suffered from human-induced eutrophication over the past decades. This cultural eutrophication is thought to be partly responsible for the dramatically reduced cichlid biodiversity, but climatic variability in itself might also have contributed to the eutrophication which resulted in low oxygen levels and decreased water transparency. To determine how recent environmental changes have influenced the lake and its cichlids over the past 50 years, we gathered environmental and meteorological variables and compared these with gill surface area of four cichlid species. We found that during the period of severe eutrophication and temperature increase (1980s), reduced wind speeds coincided with a reduction in oxygen levels and a decrease in both water temperature and transparency. The gill surface area in three out of the four cichlid species increased during this period which is consistent with adaptive change in response to increased hypoxia. During the 2000s, wind speeds, oxygen levels, water transparency and water temperature increased again, while cichlid gill surface area decreased. Our results imply that climatic changes and especially wind speed and direction might play a crucial role in tropical lake dynamics. The changes in Lake Victoria\u0026amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s water quality coincide with fluctuations in cichlid gill surface area, suggesting that these fish can respond rapidly to environmental perturbations, but also that climatic variability, together with continued eutrophication, might be detrimental to the lake\u0026amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s cichlid biodiversity.","internal_url":"https://www.academia.edu/74327568/Climatic_variability_in_combination_with_eutrophication_drives_adaptive_responses_in_the_gills_of_Lake_Victoria_cichlids","translated_internal_url":"","created_at":"2022-03-22T13:04:07.748-07:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":534684,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[],"slug":"Climatic_variability_in_combination_with_eutrophication_drives_adaptive_responses_in_the_gills_of_Lake_Victoria_cichlids","translated_slug":"","page_count":null,"language":"en","content_type":"Work","owner":{"id":534684,"first_name":"Jacco","middle_initials":null,"last_name":"van Rijssel","page_name":"JaccovanRijssel","domain_name":"wageningen-ur","created_at":"2011-07-07T01:30:45.155-07:00","display_name":"Jacco van Rijssel","url":"https://wageningen-ur.academia.edu/JaccovanRijssel"},"attachments":[],"research_interests":[{"id":1512,"name":"Climate Change","url":"https://www.academia.edu/Documents/in/Climate_Change"},{"id":7710,"name":"Biology","url":"https://www.academia.edu/Documents/in/Biology"},{"id":9846,"name":"Ecology","url":"https://www.academia.edu/Documents/in/Ecology"},{"id":10990,"name":"Hypoxia","url":"https://www.academia.edu/Documents/in/Hypoxia"},{"id":17825,"name":"Biodiversity","url":"https://www.academia.edu/Documents/in/Biodiversity"},{"id":26181,"name":"Eutrophication","url":"https://www.academia.edu/Documents/in/Eutrophication"},{"id":26327,"name":"Medicine","url":"https://www.academia.edu/Documents/in/Medicine"},{"id":53652,"name":"Lakes","url":"https://www.academia.edu/Documents/in/Lakes"},{"id":195089,"name":"Cichlids","url":"https://www.academia.edu/Documents/in/Cichlids"},{"id":216604,"name":"Cichlidae","url":"https://www.academia.edu/Documents/in/Cichlidae"},{"id":223041,"name":"Oecologia","url":"https://www.academia.edu/Documents/in/Oecologia"},{"id":233558,"name":"Microevolution","url":"https://www.academia.edu/Documents/in/Microevolution"},{"id":348966,"name":"Lake Victoria","url":"https://www.academia.edu/Documents/in/Lake_Victoria"},{"id":462837,"name":"Gills","url":"https://www.academia.edu/Documents/in/Gills"},{"id":764245,"name":"Adaptive Response","url":"https://www.academia.edu/Documents/in/Adaptive_Response"},{"id":845700,"name":"lake Victoria cichlids","url":"https://www.academia.edu/Documents/in/lake_Victoria_cichlids"},{"id":1002090,"name":"Climatic Variability","url":"https://www.academia.edu/Documents/in/Climatic_Variability"}],"urls":[]}, dispatcherData: dispatcherData }); $(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="74327567"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/74327567/Stable_isotope_evidence_from_formalin_ethanol_preserved_specimens_indicates_dietary_shifts_and_increasing_diet_overlap_in_Lake_Victoria_cichlids"><img alt="Research paper thumbnail of Stable isotope evidence from formalin–ethanol-preserved specimens indicates dietary shifts and increasing diet overlap in Lake Victoria cichlids" class="work-thumbnail" src="https://attachments.academia-assets.com/82518298/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/74327567/Stable_isotope_evidence_from_formalin_ethanol_preserved_specimens_indicates_dietary_shifts_and_increasing_diet_overlap_in_Lake_Victoria_cichlids">Stable isotope evidence from formalin–ethanol-preserved specimens indicates dietary shifts and increasing diet overlap in Lake Victoria cichlids</a></div><div class="wp-workCard_item"><span>Hydrobiologia</span><span>, 2016</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="77afe35f69709d71c4b23dacbe78a265" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":82518298,"asset_id":74327567,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/82518298/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="74327567"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="74327567"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 74327567; 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The Lake Victoria haplochromine cichlids have experienced severe environmental changes in the past decades that, amongst others, resulted in a dietary shift towards larger prey. We investigated how the changed environment and diet of the haplochromines influenced stable isotope values of formalin-then-ethanol-preserved cichlid specimens, and then investigated how these values differed among species before (1977-1982) and after substantial environmental changes (2005-2007). We found a small preservation effect on both d 13 C and d 15 N values, and significant differences in isotope values among haplochromine species collected before the environmental changes. In contrast, there was a remarkable similarity in d 13 C and d 15 N values among species collected from the contemporary ecosystem and two out three species showed significantly different stable isotope values compared to species of the historic ecosystem. In addition, we found a putative isotopic gradient effect along our 5-km-long research transect indicating that the studied demersal species are more stenotopic than previously thought. The environmental changes have resulted in dietary change and overlap of the haplochromines which provides insight into the trophic plasticity of these species, which are often considered trophic specialists. Keywords Detritivores Á Environmental changes Á Phytoplanktivores Á Stenotopic Á Trophic guild Á Zooplanktivores Mary A. Kishe-Machumu and Jacco C. van Rijssel contributed equally to this paper.","publication_date":{"day":null,"month":null,"year":2016,"errors":{}},"publication_name":"Hydrobiologia","grobid_abstract_attachment_id":82518298},"translated_abstract":null,"internal_url":"https://www.academia.edu/74327567/Stable_isotope_evidence_from_formalin_ethanol_preserved_specimens_indicates_dietary_shifts_and_increasing_diet_overlap_in_Lake_Victoria_cichlids","translated_internal_url":"","created_at":"2022-03-22T13:04:07.625-07:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":534684,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":82518298,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/82518298/thumbnails/1.jpg","file_name":"Kishe-Machumu-2017-Stable_isotope_evidence_from_formalin_E2_80_93ethanol-preserved-published_version.pdf","download_url":"https://www.academia.edu/attachments/82518298/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Stable_isotope_evidence_from_formalin_et.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/82518298/Kishe-Machumu-2017-Stable_isotope_evidence_from_formalin_E2_80_93ethanol-preserved-published_version-libre.pdf?1647980136=\u0026response-content-disposition=attachment%3B+filename%3DStable_isotope_evidence_from_formalin_et.pdf\u0026Expires=1733027990\u0026Signature=DgsGQ8bofTwsZCIXAViyRzklb-nL8c~1lvS1yNMhfHXhWz8QEdwv52AchRkUh52gbfg9x7JQYuBTBEIa2YTDL~uvHR8lunD6OwWRw6NKBmuV0cL1M4WUqAEx5R8tFvGcKtIXGd0bumb7Lga5AeeZ5-rRCBIonUOct6PsUjvq6tQdTk1N9k3QcAo2CPEETU7vMZM4pTkrZgyjsfiB69r3LG7PMOKDF5dP885ANF0LTjOuK-HXMKGEzJcMBadR7nLEIWu6xXxCb4kSz9bVtHaGY~Rfd2~U7zECc5-Dd7z2XOIy8K0gons0vqp1GwybD~xtcipRNTX0qexQzMy7PD-58g__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Stable_isotope_evidence_from_formalin_ethanol_preserved_specimens_indicates_dietary_shifts_and_increasing_diet_overlap_in_Lake_Victoria_cichlids","translated_slug":"","page_count":19,"language":"en","content_type":"Work","owner":{"id":534684,"first_name":"Jacco","middle_initials":null,"last_name":"van 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Sciences","url":"https://www.academia.edu/Documents/in/Earth_Sciences"},{"id":1421,"name":"Stable isotope ecology","url":"https://www.academia.edu/Documents/in/Stable_isotope_ecology"},{"id":3608,"name":"Historic Preservation","url":"https://www.academia.edu/Documents/in/Historic_Preservation"},{"id":7710,"name":"Biology","url":"https://www.academia.edu/Documents/in/Biology"},{"id":7941,"name":"Stable Isotopes","url":"https://www.academia.edu/Documents/in/Stable_Isotopes"},{"id":47884,"name":"Biological Sciences","url":"https://www.academia.edu/Documents/in/Biological_Sciences"},{"id":58054,"name":"Environmental Sciences","url":"https://www.academia.edu/Documents/in/Environmental_Sciences"},{"id":74664,"name":"Preserved Specimens","url":"https://www.academia.edu/Documents/in/Preserved_Specimens"},{"id":348966,"name":"Lake Victoria","url":"https://www.academia.edu/Documents/in/Lake_Victoria"},{"id":437771,"name":"Dietary 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from C13 and N15 analyses" class="work-thumbnail" src="https://attachments.academia-assets.com/82518318/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/74327566/Changing_ecology_of_Lake_Victoria_cichlids_and_their_environment_evidence_from_C13_and_N15_analyses">Changing ecology of Lake Victoria cichlids and their environment: evidence from C13 and N15 analyses</a></div><div class="wp-workCard_item"><span>Hydrobiologia</span><span>, 2016</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="72261306e087d9a1d04dfcca95715a84" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" 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id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "72261306e087d9a1d04dfcca95715a84" } } $('.js-work-strip[data-work-id=74327566]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":74327566,"title":"Changing ecology of Lake Victoria cichlids and their environment: evidence from C13 and N15 analyses","translated_title":"","metadata":{"publisher":"Springer Nature","grobid_abstract":"Eutrophication is an increasing global threat to freshwater ecosystems. East Africa's Lake Victoria has suffered from severe eutrophication in the past decades which is partly responsible for the dramatic decline in haplochromine cichlid species diversity. However, some zooplanktivorous and detritivorous haplochromine species recovered and shifted their diet towards macro invertebrates and fish. We used four formalin preserved cichlid species caught over the past 35 years to investigate whether stable isotopes of these fish are reflecting the dietary changes, habitat differences and if these isotopes can be used as indicators of eutrophication. We found that d 15 N signatures mainly reflected dietary shifts to larger prey in all four haplochromine species. Shifts in d 13 C signatures likely represented habitat differences and dietary changes. In addition, a shift to remarkably heavy d 13 C signatures in 2011 was found for all four species which might infer increased primary production and thus eutrophication although more research is needed to confirm this hypothesis. The observed temporal changes confirm previous findings that preserved specimens can be used to trace historical changes in fish ecology and the aquatic environment. This highlights the need for continued sampling as this information could be of essence for reconstructing and predicting the effects of environmental 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href="https://www.academia.edu/74327565/Fast_adaptive_responses_in_the_oral_jaw_of_Lake_Victoria_cichlids">Fast adaptive responses in the oral jaw of Lake Victoria cichlids</a></div><div class="wp-workCard_item"><span>Evolution; international journal of organic evolution</span><span>, 2015</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Rapid morphological changes in response to fluctuating natural environments are a common phenomen...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Rapid morphological changes in response to fluctuating natural environments are a common phenomenon in species that undergo adaptive radiation. The dramatic ecological changes in Lake Victoria provide a unique opportunity to study environmental effects on cichlid morphology. This study shows how four haplochromine cichlids adapted their premaxilla to a changed diet over the past 30 years. Directly after the diet change toward larger and faster prey in the late 1980s, the premaxilla (upper jaw) changed in a way that is in agreement with a more food manipulating feeding style. During the 2000s, two zooplanktivorous species showed a reversal of morphological changes after returning to their original diet, whereas two other species showed no reversal of diet and morphology. These rapid changes indicate a potential for extremely fast adaptive responses to environmental fluctuations, which are likely inflicted by competition release and increase, and might have a bearing on the ability of...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="518f43436b211cde9c92d0ec91558976" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":84009843,"asset_id":74327565,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/84009843/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="74327565"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="74327565"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 74327565; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=74327565]").text(description); $(".js-view-count[data-work-id=74327565]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 74327565; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='74327565']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 74327565, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "518f43436b211cde9c92d0ec91558976" } } $('.js-work-strip[data-work-id=74327565]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":74327565,"title":"Fast adaptive responses in the oral jaw of Lake Victoria cichlids","translated_title":"","metadata":{"abstract":"Rapid morphological changes in response to fluctuating natural environments are a common phenomenon in species that undergo adaptive radiation. 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="72413820"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/72413820/Supplementary_video_from_The_onset_of_ecological_diversification_50_years_after_colonization_of_a_crater_lake_by_haplochromine_cichlid_fishes"><img alt="Research paper thumbnail of Supplementary video from The onset of ecological diversification 50 years after colonization of a crater lake by haplochromine cichlid fishes" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/72413820/Supplementary_video_from_The_onset_of_ecological_diversification_50_years_after_colonization_of_a_crater_lake_by_haplochromine_cichlid_fishes">Supplementary video from The onset of ecological diversification 50 years after colonization of a crater lake by haplochromine cichlid fishes</a></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Adaptive radiation research typically relies on the study of evolution in retrospective, leaving ...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Adaptive radiation research typically relies on the study of evolution in retrospective, leaving the predictive value of the concept hard to evaluate. Several radiations, including the cichlid fishes in the East African Great Lakes, have been studied extensively, yet no study has investigated the onset of the intraspecific processes of niche expansion and differentiation shortly after colonization of an adaptive zone by cichlids. Haplochromine cichlids of one of the two lineages that seeded the Lake Victoria radiation recently arrived in Lake Chala, a lake perfectly suited for within-lake cichlid speciation. Here, we infer the colonization and demographic history, quantify phenotypic, ecological and genomic diversity and diversification, and investigate the selection regime to ask if the population shows signs of diversification resembling the onset of adaptive radiation. We find that since their arrival in the lake, haplochromines have colonized a wide range of depth habitats assoc...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="72413820"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="72413820"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 72413820; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=72413820]").text(description); $(".js-view-count[data-work-id=72413820]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 72413820; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='72413820']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 72413820, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=72413820]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":72413820,"title":"Supplementary video from The onset of ecological diversification 50 years after colonization of a crater lake by haplochromine cichlid fishes","translated_title":"","metadata":{"abstract":"Adaptive radiation research typically relies on the study of evolution in retrospective, leaving the predictive value of the concept hard to evaluate. 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We find that since their arrival in the lake, haplochromines have colonized a wide range of depth habitats assoc...","publisher":"Figshare","publication_date":{"day":17,"month":8,"year":2018,"errors":{}}},"translated_abstract":"Adaptive radiation research typically relies on the study of evolution in retrospective, leaving the predictive value of the concept hard to evaluate. Several radiations, including the cichlid fishes in the East African Great Lakes, have been studied extensively, yet no study has investigated the onset of the intraspecific processes of niche expansion and differentiation shortly after colonization of an adaptive zone by cichlids. Haplochromine cichlids of one of the two lineages that seeded the Lake Victoria radiation recently arrived in Lake Chala, a lake perfectly suited for within-lake cichlid speciation. Here, we infer the colonization and demographic history, quantify phenotypic, ecological and genomic diversity and diversification, and investigate the selection regime to ask if the population shows signs of diversification resembling the onset of adaptive radiation. We find that since their arrival in the lake, haplochromines have colonized a wide range of depth habitats assoc...","internal_url":"https://www.academia.edu/72413820/Supplementary_video_from_The_onset_of_ecological_diversification_50_years_after_colonization_of_a_crater_lake_by_haplochromine_cichlid_fishes","translated_internal_url":"","created_at":"2022-02-24T06:55:51.089-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":534684,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[],"slug":"Supplementary_video_from_The_onset_of_ecological_diversification_50_years_after_colonization_of_a_crater_lake_by_haplochromine_cichlid_fishes","translated_slug":"","page_count":null,"language":"en","content_type":"Work","owner":{"id":534684,"first_name":"Jacco","middle_initials":null,"last_name":"van Rijssel","page_name":"JaccovanRijssel","domain_name":"wageningen-ur","created_at":"2011-07-07T01:30:45.155-07:00","display_name":"Jacco van Rijssel","url":"https://wageningen-ur.academia.edu/JaccovanRijssel"},"attachments":[],"research_interests":[],"urls":[]}, dispatcherData: dispatcherData }); 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The few nets (4 times three joined nets with 16, 19 and 22mm mesh size) that we set in the limnetic habitat remained empty. For each gill net, the depth was measured and recorded with the use of sinkers. Fish were carefully removed from the net and photographed from their left side in a custom designed photo cuvette with a colour reference bar, a scale bar and a standardized grey background. The fish was afterwards sacrificed with an overdose of phenoxyethanol diluted in lake water. From the right side of each fish, we removed the pectoral fin and kept it in pure analytical ethanol (100%) for DNA extractions, and we removed a piece of the epaxial muscle dorsal of the lateral line, removed the skin, and dried the muscle tissue in an oven (60°C for 24 to 48 hours) for stable isotope analysis. Whole fish were subsequently fixed in 4% formalin (buffered with borax) and were later rinsed with water and stepwise transferred to 75% ethanol. In addition to Astatotilapia, we sampled all other fish species occurring in Lake Chala (Oreochromis hunteri, O. sp. 'blue head' and Coptodon rendalli) using the methods described above. Additionally we bought several larger O. hunteri from a local fisherman on the lake, who was fishing by hook and line. We also sampled Astatotilapia cf. bloyeti from the nearby Nyumba ya Mungu Reservoir (bought from the market), a dammed reservoir in the Ruvu/Pangani River, and Astatotilapia sp. from Lake Babati (gill netting), and Oreochromis spp. from the Nyumba ya Mungu (fish market), the Ruvu River (angling) and Lake Babati (gill netting) to reconstruct the colonization history of Lake Chala cichlids. Appendix S2: Methods: Filtering procedure for the RAD-tag sequences Raw reads (100 bp each) for the genomic analyses came from six libraries. Each library resulted in between 175 mio and 290 mio raw reads. Sites were filtered to include only reads with an intact SbfI restriction site, de-multiplexed and barcode-trimmed (to a length of 90 bp) using stacks and the FASTX toolkit v.0.0.13. Afterwards, reads with at least 5% of the bases with a quality below 30 were excluded for every individual with the FASTX toolkit v.0.0.13. The remaining reads were mapped against the reference genome of Metriaclima zebra (1) for phylogenetic analyses, F-statistics and STRUCTURE-analyses, and against the reference genome of Oreochromis niloticus (2) for F-statistics, PCA and STRUCTURE analyses. We used two different reference genomes to retain as many SNPs as possible for the phylogenetic analyses, while getting chromosomal information for the genome scans and F-statistics. Base quality scores for the mapped reads were recalibrated using empirical error rate estimations that we gained from bacteriophage PhiX reads (3). Genotypes were called with the GATK tool UnifiedGenotyper and filtered for genotype depth (\u003e20), genotype quality (\u003e30), maximal allowed missing data of 50% per site and indels were removed using vcftools (4). We removed all individuals with more than 50% missing data using vcftools. This dataset was used as the basis for all subsequent analyses. Below, additional filtering steps are indicated for each analysis separately. RAxML v8.0.0 (5) was used to build a maximum likelihood tree using all concatenated sequences (~2 Mio sites, including monormorphic and polymorphic sites). For each of 100 bootstrap replicates, we resampled sites from the concatenated dataset. 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="72413813"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/72413813/Lion_Panthera_leo_ecology_and_livestock_conflicts_in_Waza_National_Park_Cameroon"><img alt="Research paper thumbnail of Lion (Panthera leo) ecology and livestock conflicts in Waza National Park, Cameroon" class="work-thumbnail" src="https://attachments.academia-assets.com/81348199/thumbnails/1.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" href="https://www.academia.edu/72413813/Lion_Panthera_leo_ecology_and_livestock_conflicts_in_Waza_National_Park_Cameroon">Lion (Panthera leo) ecology and livestock conflicts in Waza National Park, Cameroon</a></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Demography and ecology were studied of a decreased lion population in Waza National Park, Cameroo...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">Demography and ecology were studied of a decreased lion population in Waza National Park, Cameroon Home ranges of lions were large with an average of 1043 (MCP 100%) or 635 (HM 95%). Lions spent most of their time inside the park, especially in the hot dry season. Time spent outside the park increases in the wet season and peaks in the cold dry season. Lions were most active during the night with crepuscular peaks around sunrise and sunset and reduced activity during the hottest parts of the day. This nocturnal activity increases when lions were outside the park. Lions were least active in the cold dry season compared to the hot dry and the wet season. Transects showed an increasing number and congregation of wild ungulates on the floodplain in time with most of the observed lions in the vicinity of these congregations. Number of nights present at a GPS cluster presented the best model to predict whether or not a lion had killed or scavenged an animal successfully. Lions killed or s...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="cb106dabb887f09f7153d067258d5bb5" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":81348199,"asset_id":72413813,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/81348199/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="72413813"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="72413813"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 72413813; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=72413813]").text(description); $(".js-view-count[data-work-id=72413813]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 72413813; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='72413813']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 72413813, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "cb106dabb887f09f7153d067258d5bb5" } } $('.js-work-strip[data-work-id=72413813]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":72413813,"title":"Lion (Panthera leo) ecology and livestock conflicts in Waza National Park, Cameroon","translated_title":"","metadata":{"abstract":"Demography and ecology were studied of a decreased lion population in Waza National Park, Cameroon Home ranges of lions were large with an average of 1043 (MCP 100%) or 635 (HM 95%). Lions spent most of their time inside the park, especially in the hot dry season. Time spent outside the park increases in the wet season and peaks in the cold dry season. Lions were most active during the night with crepuscular peaks around sunrise and sunset and reduced activity during the hottest parts of the day. This nocturnal activity increases when lions were outside the park. Lions were least active in the cold dry season compared to the hot dry and the wet season. Transects showed an increasing number and congregation of wild ungulates on the floodplain in time with most of the observed lions in the vicinity of these congregations. Number of nights present at a GPS cluster presented the best model to predict whether or not a lion had killed or scavenged an animal successfully. Lions killed or s...","publication_date":{"day":null,"month":null,"year":2008,"errors":{}}},"translated_abstract":"Demography and ecology were studied of a decreased lion population in Waza National Park, Cameroon Home ranges of lions were large with an average of 1043 (MCP 100%) or 635 (HM 95%). Lions spent most of their time inside the park, especially in the hot dry season. Time spent outside the park increases in the wet season and peaks in the cold dry season. Lions were most active during the night with crepuscular peaks around sunrise and sunset and reduced activity during the hottest parts of the day. This nocturnal activity increases when lions were outside the park. Lions were least active in the cold dry season compared to the hot dry and the wet season. Transects showed an increasing number and congregation of wild ungulates on the floodplain in time with most of the observed lions in the vicinity of these congregations. Number of nights present at a GPS cluster presented the best model to predict whether or not a lion had killed or scavenged an animal successfully. 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J.P. The fish fauna of Lake Victoria during a century of human induced perturbations. In J. Snoeks & A. Getahun (eds), Proceedings of the Fourth International Conference on African Fish and Fisheries, Addis Ababa, Ethiopia, 22-26 September 2008. Tervuren: Royal Museum for Central Africa, ‘Zoological Documentation Online Series’, pp. 49-66. Lake Victoria, by area the largest tropical lake of the world, is well-known for its diverse native fish fauna, which comprised about 500 endemic haplochromine cichlid species, two tilapiine species and 46 other species belonging to 12 families. During the past decades, the fish species diversity in the lake has declined dramatically due to human induced perturbations in the ecosystem. Based on literature and our own research findings we provide an overview of these changes and their most likely causes. During the first half of the l...</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="c68d36f79c1bf564e3eff8b76fb6f15e" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":79327685,"asset_id":69099806,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/79327685/download_file?st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&st=MTczMzAyNDM5MCw4LjIyMi4yMDguMTQ2&s=profile"><span><i class="fa fa-arrow-down"></i></span><span>Download</span></a><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="69099806"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="69099806"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 69099806; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=69099806]").text(description); $(".js-view-count[data-work-id=69099806]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 69099806; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='69099806']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 69099806, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (true){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "c68d36f79c1bf564e3eff8b76fb6f15e" } } $('.js-work-strip[data-work-id=69099806]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":69099806,"title":"The Fish Fauna of Lake Victoria during a Centruy of Human Induced Perturbations","translated_title":"","metadata":{"abstract":"witte, f., kishe-machumu, m. a., mkumbo, o. c., wanink, J. h., goudswaard, P. c., van riJssel, J.c. \u0026 van oiJen, m. J.P. The fish fauna of Lake Victoria during a century of human induced perturbations. In J. Snoeks \u0026 A. Getahun (eds), Proceedings of the Fourth International Conference on African Fish and Fisheries, Addis Ababa, Ethiopia, 22-26 September 2008. Tervuren: Royal Museum for Central Africa, ‘Zoological Documentation Online Series’, pp. 49-66. Lake Victoria, by area the largest tropical lake of the world, is well-known for its diverse native fish fauna, which comprised about 500 endemic haplochromine cichlid species, two tilapiine species and 46 other species belonging to 12 families. During the past decades, the fish species diversity in the lake has declined dramatically due to human induced perturbations in the ecosystem. Based on literature and our own research findings we provide an overview of these changes and their most likely causes. During the first half of the l...","publication_date":{"day":null,"month":null,"year":2013,"errors":{}}},"translated_abstract":"witte, f., kishe-machumu, m. a., mkumbo, o. c., wanink, J. h., goudswaard, P. c., van riJssel, J.c. \u0026 van oiJen, m. J.P. The fish fauna of Lake Victoria during a century of human induced perturbations. In J. Snoeks \u0026 A. Getahun (eds), Proceedings of the Fourth International Conference on African Fish and Fisheries, Addis Ababa, Ethiopia, 22-26 September 2008. Tervuren: Royal Museum for Central Africa, ‘Zoological Documentation Online Series’, pp. 49-66. Lake Victoria, by area the largest tropical lake of the world, is well-known for its diverse native fish fauna, which comprised about 500 endemic haplochromine cichlid species, two tilapiine species and 46 other species belonging to 12 families. During the past decades, the fish species diversity in the lake has declined dramatically due to human induced perturbations in the ecosystem. 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> </div><div class="profile--tab_content_container js-tab-pane tab-pane" data-section-id="7765226" id="books"><div class="js-work-strip profile--work_container" data-work-id="35322101"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/35322101/Historical_Perspectives_and_Trends_in_Fisheries_Research_in_Tanzania"><img alt="Research paper thumbnail of Historical Perspectives and Trends in Fisheries Research in Tanzania" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/35322101/Historical_Perspectives_and_Trends_in_Fisheries_Research_in_Tanzania">Historical Perspectives and Trends in Fisheries Research in Tanzania</a></div><div class="wp-workCard_item wp-workCard--coauthors"><span>by </span><span><a class="" data-click-track="profile-work-strip-authors" href="https://wageningen-ur.academia.edu/JaccovanRijssel">Jacco van Rijssel</a>, <a class="" data-click-track="profile-work-strip-authors" href="https://independent.academia.edu/MaryAlphonceKisheMachumu">Mary Alphonce Kishe-Machumu</a>, and <a class="" data-click-track="profile-work-strip-authors" href="https://udsm.academia.edu/YunusMgaya">Yunus Mgaya</a></span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">This chapter traces the history and trends in fisheries research for the Tanzanian part of Lake V...</span><a class="js-work-more-abstract" data-broccoli-component="work_strip.more_abstract" data-click-track="profile-work-strip-more-abstract" href="javascript:;"><span> more </span><span><i class="fa fa-caret-down"></i></span></a><span class="js-work-more-abstract-untruncated hidden">This chapter traces the history and trends in fisheries research for the Tanzanian part of Lake Victoria and its basin back to the late nineteenth century when the haplochromine species were scientifically identified for the first time. Past studies in the early to mid-twentieth century were mainly designed to address issues related to the introduced species and the abundant haplochromines. Subsequent studies in the late twentieth to early twenty-first centuries integrated multiple disciplines such as fish biology, ecology, biodiversity, limnology, socio-economics and aquaculture. In the late 1990s and early 2000s, lake-wide research projects played a key role in further understanding of the lake-basin flora, fauna and related fisheries. Over the last half century, Lake Victoria has undergone dramatic ecosystem changes, partly driven by the introduction of the predatory Nile perch and the non-indigenous tilapiine species in the 1950s and early 1960s. The profound ecosystem transformation of the lake has also been attributed to cultural eutrophication, climatic variability and over-fishing. In the mid-1950s, the lake had a diverse fish fauna, which was thought to comprise about 29 genera and more than 650 species, with the haplochro-mines forming about 80% of the demersal fish stocks. Later discoveries in the early 1970s to the late 1990s confirmed that the haplochromine group alone consisted of over 500 endemic species. The introduction of the Nile perch was meant to utilize the abundant haplochromines that were considered commercially unimportant, and to extend fishing operations from the inshore to deeper offshore waters.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="35322101"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="35322101"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 35322101; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=35322101]").text(description); $(".js-view-count[data-work-id=35322101]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 35322101; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='35322101']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 35322101, container: "", }); });</script></span></div><div id="work-strip-premium-row-container"></div></div></div><script> require.config({ waitSeconds: 90 })(["https://a.academia-assets.com/assets/wow_profile-f77ea15d77ce96025a6048a514272ad8becbad23c641fc2b3bd6e24ca6ff1932.js","https://a.academia-assets.com/assets/work_edit-ad038b8c047c1a8d4fa01b402d530ff93c45fee2137a149a4a5398bc8ad67560.js"], function() { // from javascript_helper.rb var dispatcherData = {} if (false){ window.WowProfile.dispatcher = window.WowProfile.dispatcher || _.clone(Backbone.Events); dispatcherData = { dispatcher: window.WowProfile.dispatcher, downloadLinkId: "-1" } } $('.js-work-strip[data-work-id=35322101]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":35322101,"title":"Historical Perspectives and Trends in Fisheries Research in Tanzania","translated_title":"","metadata":{"abstract":"This chapter traces the history and trends in fisheries research for the Tanzanian part of Lake Victoria and its basin back to the late nineteenth century when the haplochromine species were scientifically identified for the first time. Past studies in the early to mid-twentieth century were mainly designed to address issues related to the introduced species and the abundant haplochromines. Subsequent studies in the late twentieth to early twenty-first centuries integrated multiple disciplines such as fish biology, ecology, biodiversity, limnology, socio-economics and aquaculture. In the late 1990s and early 2000s, lake-wide research projects played a key role in further understanding of the lake-basin flora, fauna and related fisheries. Over the last half century, Lake Victoria has undergone dramatic ecosystem changes, partly driven by the introduction of the predatory Nile perch and the non-indigenous tilapiine species in the 1950s and early 1960s. The profound ecosystem transformation of the lake has also been attributed to cultural eutrophication, climatic variability and over-fishing. In the mid-1950s, the lake had a diverse fish fauna, which was thought to comprise about 29 genera and more than 650 species, with the haplochro-mines forming about 80% of the demersal fish stocks. Later discoveries in the early 1970s to the late 1990s confirmed that the haplochromine group alone consisted of over 500 endemic species. The introduction of the Nile perch was meant to utilize the abundant haplochromines that were considered commercially unimportant, and to extend fishing operations from the inshore to deeper offshore waters."},"translated_abstract":"This chapter traces the history and trends in fisheries research for the Tanzanian part of Lake Victoria and its basin back to the late nineteenth century when the haplochromine species were scientifically identified for the first time. Past studies in the early to mid-twentieth century were mainly designed to address issues related to the introduced species and the abundant haplochromines. Subsequent studies in the late twentieth to early twenty-first centuries integrated multiple disciplines such as fish biology, ecology, biodiversity, limnology, socio-economics and aquaculture. In the late 1990s and early 2000s, lake-wide research projects played a key role in further understanding of the lake-basin flora, fauna and related fisheries. Over the last half century, Lake Victoria has undergone dramatic ecosystem changes, partly driven by the introduction of the predatory Nile perch and the non-indigenous tilapiine species in the 1950s and early 1960s. The profound ecosystem transformation of the lake has also been attributed to cultural eutrophication, climatic variability and over-fishing. In the mid-1950s, the lake had a diverse fish fauna, which was thought to comprise about 29 genera and more than 650 species, with the haplochro-mines forming about 80% of the demersal fish stocks. Later discoveries in the early 1970s to the late 1990s confirmed that the haplochromine group alone consisted of over 500 endemic species. 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