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class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" href="https://www.academia.edu/126117292/Le_Chant_Du_Manchot_Empereur_Et_Sa_Signification_Adaptative"><img alt="Research paper thumbnail of Le Chant Du Manchot Empereur Et Sa Signification Adaptative" class="work-thumbnail" src="https://attachments.academia-assets.com/120043899/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/126117292/Le_Chant_Du_Manchot_Empereur_Et_Sa_Signification_Adaptative">Le Chant Du Manchot Empereur Et Sa Signification Adaptative</a></div><div class="wp-workCard_item"><span>Behaviour</span><span>, 1979</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="493c42c56d40740cbc742b5f926dcbed" 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href="https://www.academia.edu/126117291/Sex_specific_patterns_in_baseline_corticosterone_and_body_condition_changes_in_breeding_Red_footed_Boobies_Sula_sula"><img alt="Research paper thumbnail of Sex-specific patterns in baseline corticosterone and body condition changes in breeding Red-footed Boobies Sula sula" class="work-thumbnail" src="https://attachments.academia-assets.com/120043897/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/126117291/Sex_specific_patterns_in_baseline_corticosterone_and_body_condition_changes_in_breeding_Red_footed_Boobies_Sula_sula">Sex-specific patterns in baseline corticosterone and body condition changes in breeding Red-footed Boobies Sula sula</a></div><div class="wp-workCard_item"><span>Ibis</span><span>, Mar 27, 2003</span></div><div 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Parey eBooks</span><span>, 1982</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Abstract 1. Compared the sexual and aggressive behavior of all genera of penguins to determine th...</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">Abstract 1. Compared the sexual and aggressive behavior of all genera of penguins to determine the biological meaning of ritualized attitudes. 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Compared the sexual and aggressive behavior of all genera of penguins to determine the biological meaning of ritualized attitudes. Optical and vocal signals are also investigated, and the evolution of penguin behavior is dealt with, along with ...","publisher":"P. Parey","publication_date":{"day":null,"month":null,"year":1982,"errors":{}},"publication_name":"P. Parey eBooks"},"translated_abstract":"Abstract 1. Compared the sexual and aggressive behavior of all genera of penguins to determine the biological meaning of ritualized attitudes. 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Optical and vocal signals are also investigated, and the evolution of penguin behavior is dealt with, along with ...","owner":{"id":42816241,"first_name":"pierre","middle_initials":null,"last_name":"Jouventin","page_name":"pierreJouventin","domain_name":"independent","created_at":"2016-02-07T12:10:55.000-08:00","display_name":"pierre Jouventin","url":"https://independent.academia.edu/pierreJouventin"},"attachments":[],"research_interests":[{"id":859,"name":"Communication","url":"https://www.academia.edu/Documents/in/Communication"},{"id":7710,"name":"Biology","url":"https://www.academia.edu/Documents/in/Biology"}],"urls":[{"id":45946732,"url":"http://ci.nii.ac.jp/ncid/BA21423560"}]}, 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="126117288"><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/126117288/Immunocompetence_is_signalled_by_ornamental_colour_in_king_penguins_Aptenodytes_patagonicus"><img alt="Research paper thumbnail of Immunocompetence is signalled by ornamental colour in king penguins, Aptenodytes patagonicus" class="work-thumbnail" src="https://attachments.academia-assets.com/120043900/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/126117288/Immunocompetence_is_signalled_by_ornamental_colour_in_king_penguins_Aptenodytes_patagonicus">Immunocompetence is signalled by ornamental colour in king penguins, Aptenodytes patagonicus</a></div><div class="wp-workCard_item"><span>Evolutionary Ecology Research</span><span>, 2006</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Hypothesis: Colourful ornaments reveal an individual's immunocompetence, allowing birds to choose...</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">Hypothesis: Colourful ornaments reveal an individual's immunocompetence, allowing birds to choose mates on the basis of these characters. Organism: King penguins, Aptenodytes patagonicus. Field site: Colony of approximately 16,000 breeding pairs on Possession Island in the Crozet Archipelago, southern Indian Ocean. Methods: We measured foot-web swelling in males resulting from experimental injection of a novel mitogen (phytohaemagglutinin, PHA) and compared that measure of immunocompetence with colours of the beak spot and plumage. Conclusions: Breast plumage colour is a reliable indicator of immunocompetence in king penguins. Breast plumage colour appears to rely on the presence of pterin pigments, and the fact that pterins are implicated in immune function may underlie the honesty of this signal.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="2c502e7a12392cfd3e3d87384126fb11" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":120043900,"asset_id":126117288,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/120043900/download_file?st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&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="126117288"><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="126117288"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 126117288; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=126117288]").text(description); $(".js-view-count[data-work-id=126117288]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 126117288; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='126117288']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 126117288, 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: "2c502e7a12392cfd3e3d87384126fb11" } } $('.js-work-strip[data-work-id=126117288]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":126117288,"title":"Immunocompetence is signalled by ornamental colour in king penguins, Aptenodytes patagonicus","translated_title":"","metadata":{"publisher":"Evolutionary Ecology Ltd.","grobid_abstract":"Hypothesis: Colourful ornaments reveal an individual's immunocompetence, allowing birds to choose mates on the basis of these characters. 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data-work-id="126117284"><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/126117284/High_annual_variability_in_reproductive_success_and_survival_of_an_Antarctic_seabird_the_snow_petrel_Pagodroma_nivea"><img alt="Research paper thumbnail of High annual variability in reproductive success and survival of an Antarctic seabird, the snow petrel Pagodroma nivea" class="work-thumbnail" src="https://attachments.academia-assets.com/120043898/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/126117284/High_annual_variability_in_reproductive_success_and_survival_of_an_Antarctic_seabird_the_snow_petrel_Pagodroma_nivea">High annual variability in reproductive success and survival of an Antarctic seabird, the snow petrel Pagodroma nivea</a></div><div class="wp-workCard_item"><span>Oecologia</span><span>, 1993</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Demographic parameters were estimated for snow petrels Pagodroma nivea nesting at Pointe G6ologie...</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">Demographic parameters were estimated for snow petrels Pagodroma nivea nesting at Pointe G6ologie Archipelago, Ad61ie Land, Antarctica between 1963 and 1990; 21 years of data on adult survival and 27 years of data on breeding success are available. The average age of first return and first breeding were 8.1 and 9.9 years respectively and there was no significant difference between the sexes. The overall breeding success averaged 51.3% and was very variable between years (21-80%). Breeding failure was mostly due to incubation failure and annual breeding success was negatively correlated with average snow falls in October-November and October-March. Breeding frequency was very low, averaging 52% of seasons during a reproductive lifetime. Good quality sites, with high occupancy rate and high breeding success were few in the study plots.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="75650844372fa51a2fa3ed971a033d1d" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":120043898,"asset_id":126117284,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/120043898/download_file?st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&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="126117284"><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="126117284"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 126117284; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=126117284]").text(description); $(".js-view-count[data-work-id=126117284]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 126117284; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='126117284']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 126117284, 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: "75650844372fa51a2fa3ed971a033d1d" } } $('.js-work-strip[data-work-id=126117284]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":126117284,"title":"High annual variability in reproductive success and survival of an Antarctic seabird, the snow petrel Pagodroma nivea","translated_title":"","metadata":{"publisher":"Springer Science+Business Media","grobid_abstract":"Demographic parameters were estimated for snow petrels Pagodroma nivea nesting at Pointe G6ologie Archipelago, Ad61ie Land, Antarctica between 1963 and 1990; 21 years of data on adult survival and 27 years of data on breeding success are available. 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Species typically ...</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">Some penguin species are shy because they were threatened by human activities. Species typically differ in head pattern and by voice. On land, head pattern and voice influence mate choice by reflecting species, sexual maturity, and body condition. They act as ethological mechanisms of reproductive isolation, each species being adapted to a special mass of water, with unique temperature and salinity. Speciation in penguins depends both on distances among islands (geographical speciation) and on the sea temperature of the water mass (oceanographic speciation). As recent DNA analyses revealed and behavioral studies suggested more than 35 years ago, populations of pelagic feeding Rockhopper penguins have diverged in water masses of different temperatures. Thus, oceanographic speciation was a major factor producing new species. Contrarily, Gentoo penguins are coastal feeders, and geographic speciation has produced divergent and distant populations. So new species are likely in penguins, and they must be considered by conservation biologists.</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="126117283"><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="126117283"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 126117283; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=126117283]").text(description); $(".js-view-count[data-work-id=126117283]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 126117283; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='126117283']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 126117283, 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" } } $('.js-work-strip[data-work-id=126117283]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":126117283,"title":"The Evolution of Communication","translated_title":"","metadata":{"abstract":"Some penguin species are shy because they were threatened by human activities. Species typically differ in head pattern and by voice. On land, head pattern and voice influence mate choice by reflecting species, sexual maturity, and body condition. They act as ethological mechanisms of reproductive isolation, each species being adapted to a special mass of water, with unique temperature and salinity. Speciation in penguins depends both on distances among islands (geographical speciation) and on the sea temperature of the water mass (oceanographic speciation). As recent DNA analyses revealed and behavioral studies suggested more than 35 years ago, populations of pelagic feeding Rockhopper penguins have diverged in water masses of different temperatures. Thus, oceanographic speciation was a major factor producing new species. Contrarily, Gentoo penguins are coastal feeders, and geographic speciation has produced divergent and distant populations. So new species are likely in penguins, and they must be considered by conservation biologists.","publication_date":{"day":null,"month":null,"year":2018,"errors":{}}},"translated_abstract":"Some penguin species are shy because they were threatened by human activities. Species typically differ in head pattern and by voice. On land, head pattern and voice influence mate choice by reflecting species, sexual maturity, and body condition. They act as ethological mechanisms of reproductive isolation, each species being adapted to a special mass of water, with unique temperature and salinity. Speciation in penguins depends both on distances among islands (geographical speciation) and on the sea temperature of the water mass (oceanographic speciation). As recent DNA analyses revealed and behavioral studies suggested more than 35 years ago, populations of pelagic feeding Rockhopper penguins have diverged in water masses of different temperatures. Thus, oceanographic speciation was a major factor producing new species. Contrarily, Gentoo penguins are coastal feeders, and geographic speciation has produced divergent and distant populations. So new species are likely in penguins, and they must be considered by conservation biologists.","internal_url":"https://www.academia.edu/126117283/The_Evolution_of_Communication","translated_internal_url":"","created_at":"2024-12-06T08:46:55.096-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":42816241,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[],"slug":"The_Evolution_of_Communication","translated_slug":"","page_count":null,"language":"en","content_type":"Work","summary":"Some penguin species are shy because they were threatened by human activities. Species typically differ in head pattern and by voice. On land, head pattern and voice influence mate choice by reflecting species, sexual maturity, and body condition. They act as ethological mechanisms of reproductive isolation, each species being adapted to a special mass of water, with unique temperature and salinity. Speciation in penguins depends both on distances among islands (geographical speciation) and on the sea temperature of the water mass (oceanographic speciation). As recent DNA analyses revealed and behavioral studies suggested more than 35 years ago, populations of pelagic feeding Rockhopper penguins have diverged in water masses of different temperatures. Thus, oceanographic speciation was a major factor producing new species. Contrarily, Gentoo penguins are coastal feeders, and geographic speciation has produced divergent and distant populations. So new species are likely in penguins, and they must be considered by conservation biologists.","owner":{"id":42816241,"first_name":"pierre","middle_initials":null,"last_name":"Jouventin","page_name":"pierreJouventin","domain_name":"independent","created_at":"2016-02-07T12:10:55.000-08:00","display_name":"pierre Jouventin","url":"https://independent.academia.edu/pierreJouventin"},"attachments":[],"research_interests":[{"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":30329,"name":"Genetic Algorithm","url":"https://www.academia.edu/Documents/in/Genetic_Algorithm"},{"id":358670,"name":"Reproductive Isolation","url":"https://www.academia.edu/Documents/in/Reproductive_Isolation"},{"id":376955,"name":"Threatened Species","url":"https://www.academia.edu/Documents/in/Threatened_Species"},{"id":3816195,"name":"pelagic zone","url":"https://www.academia.edu/Documents/in/pelagic_zone"}],"urls":[{"id":45946726,"url":"https://doi.org/10.1016/b978-0-12-811178-9.00006-8"}]}, 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="126117279"><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/126117279/Experiments_on_Visual_Signals"><img alt="Research paper thumbnail of Experiments on Visual Signals" 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/126117279/Experiments_on_Visual_Signals">Experiments on Visual Signals</a></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">All species of penguins have color ornaments or black-and-white markings on the head that are pre...</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">All species of penguins have color ornaments or black-and-white markings on the head that are presented during nuptial displays. This suggests that they are used in mate choice and evolve by sexual selection. Because a high degree of cooperation by both mates is required for successful breeding, mate choice is important. We modified the ornaments of penguins, especially the highly ornamented King penguins, concluding that mutual mate choice occurred but was not equal between the sexes. We found a new signal, ultraviolet (UV) color, in large nonnesting penguins. Their beaks reflect yellow/orange carotenoid pigments and UV from beak spots. A new pigment, Spheniscin, is reflected from ear and breast feather patches. Females preferred males with larger ear patches, so both mutual and female-based selection occurred. The UV signal was dynamic and changed with body condition during fasting and with parasite density. Pigmented ornaments changed color according to the richness of marine resources.</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="126117279"><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="126117279"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 126117279; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=126117279]").text(description); $(".js-view-count[data-work-id=126117279]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 126117279; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='126117279']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 126117279, 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" } } $('.js-work-strip[data-work-id=126117279]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":126117279,"title":"Experiments on Visual Signals","translated_title":"","metadata":{"abstract":"All species of penguins have color ornaments or black-and-white markings on the head that are presented during nuptial displays. This suggests that they are used in mate choice and evolve by sexual selection. Because a high degree of cooperation by both mates is required for successful breeding, mate choice is important. We modified the ornaments of penguins, especially the highly ornamented King penguins, concluding that mutual mate choice occurred but was not equal between the sexes. We found a new signal, ultraviolet (UV) color, in large nonnesting penguins. Their beaks reflect yellow/orange carotenoid pigments and UV from beak spots. A new pigment, Spheniscin, is reflected from ear and breast feather patches. Females preferred males with larger ear patches, so both mutual and female-based selection occurred. The UV signal was dynamic and changed with body condition during fasting and with parasite density. Pigmented ornaments changed color according to the richness of marine resources.","publication_date":{"day":null,"month":null,"year":2018,"errors":{}}},"translated_abstract":"All species of penguins have color ornaments or black-and-white markings on the head that are presented during nuptial displays. This suggests that they are used in mate choice and evolve by sexual selection. Because a high degree of cooperation by both mates is required for successful breeding, mate choice is important. We modified the ornaments of penguins, especially the highly ornamented King penguins, concluding that mutual mate choice occurred but was not equal between the sexes. We found a new signal, ultraviolet (UV) color, in large nonnesting penguins. Their beaks reflect yellow/orange carotenoid pigments and UV from beak spots. A new pigment, Spheniscin, is reflected from ear and breast feather patches. Females preferred males with larger ear patches, so both mutual and female-based selection occurred. The UV signal was dynamic and changed with body condition during fasting and with parasite density. Pigmented ornaments changed color according to the richness of marine resources.","internal_url":"https://www.academia.edu/126117279/Experiments_on_Visual_Signals","translated_internal_url":"","created_at":"2024-12-06T08:46:52.925-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":42816241,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[],"slug":"Experiments_on_Visual_Signals","translated_slug":"","page_count":null,"language":"en","content_type":"Work","summary":"All species of penguins have color ornaments or black-and-white markings on the head that are presented during nuptial displays. This suggests that they are used in mate choice and evolve by sexual selection. Because a high degree of cooperation by both mates is required for successful breeding, mate choice is important. We modified the ornaments of penguins, especially the highly ornamented King penguins, concluding that mutual mate choice occurred but was not equal between the sexes. We found a new signal, ultraviolet (UV) color, in large nonnesting penguins. Their beaks reflect yellow/orange carotenoid pigments and UV from beak spots. A new pigment, Spheniscin, is reflected from ear and breast feather patches. Females preferred males with larger ear patches, so both mutual and female-based selection occurred. The UV signal was dynamic and changed with body condition during fasting and with parasite density. 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="126117278"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/126117278/Have_Giant_Petrels_Macronectes_Spp_Really_Increased_at_Iles_Crozet"><img alt="Research paper thumbnail of Have Giant Petrels Macronectes Spp. Really Increased at Iles Crozet" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/126117278/Have_Giant_Petrels_Macronectes_Spp_Really_Increased_at_Iles_Crozet">Have Giant Petrels Macronectes Spp. Really Increased at Iles Crozet</a></div><div class="wp-workCard_item"><span>Marine ornithology</span><span>, Apr 15, 1991</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="126117278"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="126117278"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 126117278; 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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="126117277"><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/126117277/_Electrophoretic_distance_between_the_Mandrill_and_the_Drill_authors_transl_"><img alt="Research paper thumbnail of [Electrophoretic distance between the Mandrill and the Drill (author's transl)]" 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/126117277/_Electrophoretic_distance_between_the_Mandrill_and_the_Drill_authors_transl_">[Electrophoretic distance between the Mandrill and the Drill (author's transl)]</a></div><div class="wp-workCard_item"><span>PubMed</span><span>, 1980</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The Mandrill (Mandrillus sphinx) and the Drill (M. leucophaeus) differ by approximately 30% of th...</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">The Mandrill (Mandrillus sphinx) and the Drill (M. leucophaeus) differ by approximately 30% of their genes as shown by electrophoretic studies. The reasons of this differenciation are discussed with regard to divergence of characters, geographical isolation, and social organization of both species.</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="126117277"><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="126117277"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 126117277; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=126117277]").text(description); $(".js-view-count[data-work-id=126117277]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 126117277; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='126117277']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 126117277, 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" } } $('.js-work-strip[data-work-id=126117277]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":126117277,"title":"[Electrophoretic distance between the Mandrill and the Drill (author's transl)]","translated_title":"","metadata":{"abstract":"The Mandrill (Mandrillus sphinx) and the Drill (M. leucophaeus) differ by approximately 30% of their genes as shown by electrophoretic studies. 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The reasons of this differenciation are discussed with regard to divergence of characters, geographical isolation, and social organization of both species.","owner":{"id":42816241,"first_name":"pierre","middle_initials":null,"last_name":"Jouventin","page_name":"pierreJouventin","domain_name":"independent","created_at":"2016-02-07T12:10:55.000-08:00","display_name":"pierre Jouventin","url":"https://independent.academia.edu/pierreJouventin"},"attachments":[],"research_interests":[{"id":7710,"name":"Biology","url":"https://www.academia.edu/Documents/in/Biology"},{"id":26327,"name":"Medicine","url":"https://www.academia.edu/Documents/in/Medicine"},{"id":56475,"name":"Papio","url":"https://www.academia.edu/Documents/in/Papio"},{"id":86337,"name":"Gabon","url":"https://www.academia.edu/Documents/in/Gabon"},{"id":98939,"name":"Pubmed","url":"https://www.academia.edu/Documents/in/Pubmed"},{"id":191815,"name":"Biological evolution","url":"https://www.academia.edu/Documents/in/Biological_evolution"},{"id":1593060,"name":"Blood Proteins","url":"https://www.academia.edu/Documents/in/Blood_Proteins"}],"urls":[{"id":45946720,"url":"https://pubmed.ncbi.nlm.nih.gov/6965840"}]}, 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="126117275"><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/126117275/A_New_Species_of_Small_Flightless_Duck_from_Amsterdam_Island_Southern_Indian_Ocean_Anatidae_Anas_"><img alt="Research paper thumbnail of A New Species of Small Flightless Duck from Amsterdam Island, Southern Indian Ocean (Anatidae: Anas)" class="work-thumbnail" src="https://attachments.academia-assets.com/120043892/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/126117275/A_New_Species_of_Small_Flightless_Duck_from_Amsterdam_Island_Southern_Indian_Ocean_Anatidae_Anas_">A New Species of Small Flightless Duck from Amsterdam Island, Southern Indian Ocean (Anatidae: Anas)</a></div><div class="wp-workCard_item"><span>The Condor</span><span>, Feb 1, 1996</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The islands of Amsterdam and St. Paul each appear to have been inhabited by endemic populations o...</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">The islands of Amsterdam and St. Paul each appear to have been inhabited by endemic populations of ducks that were exterminated by humans or human-introduced mammals in the past two hundred years. The duck from St. Paul is known only from a historical account in 1793. Abundant bone remains of a duck from Amsterdam Island are described as a new species, Anas marecula. This was a small, teal-sized species with very reduced wings and pectoral girdle, so that it was certainly flightless. The short, pointed bill suggests a possible derivation of the species from an ancestor related to the widgeons formerly segregated in the genus Mareca.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="a4fc97cc414bab6e97b90f8216f216bc" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":120043892,"asset_id":126117275,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/120043892/download_file?st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&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="126117275"><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="126117275"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 126117275; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=126117275]").text(description); $(".js-view-count[data-work-id=126117275]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 126117275; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='126117275']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 126117275, 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: "a4fc97cc414bab6e97b90f8216f216bc" } } $('.js-work-strip[data-work-id=126117275]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":126117275,"title":"A New Species of Small Flightless Duck from Amsterdam Island, Southern Indian Ocean (Anatidae: Anas)","translated_title":"","metadata":{"publisher":"Cooper Ornithological Society","grobid_abstract":"The islands of Amsterdam and St. Paul each appear to have been inhabited by endemic populations of ducks that were exterminated by humans or human-introduced mammals in the past two hundred years. 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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="126117274"><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/126117274/UV_signals_in_penguins"><img alt="Research paper thumbnail of UV signals in penguins" 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/126117274/UV_signals_in_penguins">UV signals in penguins</a></div><div class="wp-workCard_item"><span>Polar Biology</span><span>, Jan 14, 2009</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">In a past issue of Polar Biology, Meyer-Rochow andShimoyama (2008) conclude their article with “u...</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">In a past issue of Polar Biology, Meyer-Rochow andShimoyama (2008) conclude their article with “unless evi-dence can be provided in favour of, Wrstly, UV sensitiveretinal receptors in penguins and, secondly, a behaviouralrole for a UV pattern of a penguin, we would regard UVreXectivity in penguins as a biologically unimportant phe-nomenon, associated with optical properties of a structureat a particular stage of growth and development.” Here, weexpress our dissent from this statement and provide furtherevidence strongly suggesting the signi Wcance of UV signalsin intraspeciWc penguin communication.First, Bowmaker and Martin (1985) found that the conetypes of Humboldt penguins</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="126117274"><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="126117274"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 126117274; 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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="126117273"><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/126117273/Individual_breeding_decisions_and_long_term_reproductive_strategy_in_the_King_Penguin_Aptenodytes_patagonicus"><img alt="Research paper thumbnail of Individual breeding decisions and long-term reproductive strategy in the King Penguin Aptenodytes patagonicus" class="work-thumbnail" src="https://attachments.academia-assets.com/120043893/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/126117273/Individual_breeding_decisions_and_long_term_reproductive_strategy_in_the_King_Penguin_Aptenodytes_patagonicus">Individual breeding decisions and long-term reproductive strategy in the King Penguin Aptenodytes patagonicus</a></div><div class="wp-workCard_item"><span>Ibis</span><span>, Jun 28, 2008</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Although studied for 3 5 years, knowledge of the reproductive biology of the King Penguin Aptenod...</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 studied for 3 5 years, knowledge of the reproductive biology of the King Penguin Aptenodytes patagoiziczis remains incomplete. The chick requires more than 12 months of care, which extends the breeding cycle, including moult, to more than one year, i.e. the King Penguin is neither annual nor biennial. In an attempt to resolve ambiguities in the literature and to elucidate the long-term breeding strategy of the species, we studied breeding frequency at the individual level, considering the decision to breed in relation to breeding history over the previous few years. Although adult birds attempted to breed annually (0.83 breeding attempts per year), successful rearing occurred, a t best, every two years only (maximum of 0.41 fledged chick per pair). Comparing successive years, the number of breeding birds in the colony was stable but the number of fledged chicks varied from 29 to 278 over eight years. These results suggest that King Penguins adopt (as individuals) an opportunistic reproductive strategy, in that they usually lay an egg every year, even when failure is certain. Nevertheless, the decision t o breed was not entirely blind, and we identified groups of birds that invested differentially in breeding attempts.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="9c268a09b0bd9103b015941ba21fd387" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":120043893,"asset_id":126117273,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/120043893/download_file?st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&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="126117273"><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="126117273"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 126117273; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=126117273]").text(description); $(".js-view-count[data-work-id=126117273]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 126117273; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='126117273']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 126117273, 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: "9c268a09b0bd9103b015941ba21fd387" } } $('.js-work-strip[data-work-id=126117273]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":126117273,"title":"Individual breeding decisions and long-term reproductive strategy in the King Penguin Aptenodytes patagonicus","translated_title":"","metadata":{"publisher":"Wiley-Blackwell","grobid_abstract":"Although studied for 3 5 years, knowledge of the reproductive biology of the King Penguin Aptenodytes patagoiziczis remains incomplete. The chick requires more than 12 months of care, which extends the breeding cycle, including moult, to more than one year, i.e. the King Penguin is neither annual nor biennial. In an attempt to resolve ambiguities in the literature and to elucidate the long-term breeding strategy of the species, we studied breeding frequency at the individual level, considering the decision to breed in relation to breeding history over the previous few years. Although adult birds attempted to breed annually (0.83 breeding attempts per year), successful rearing occurred, a t best, every two years only (maximum of 0.41 fledged chick per pair). Comparing successive years, the number of breeding birds in the colony was stable but the number of fledged chicks varied from 29 to 278 over eight years. These results suggest that King Penguins adopt (as individuals) an opportunistic reproductive strategy, in that they usually lay an egg every year, even when failure is certain. Nevertheless, the decision t o breed was not entirely blind, and we identified groups of birds that invested differentially in breeding attempts.","publication_date":{"day":28,"month":6,"year":2008,"errors":{}},"publication_name":"Ibis","grobid_abstract_attachment_id":120043893},"translated_abstract":null,"internal_url":"https://www.academia.edu/126117273/Individual_breeding_decisions_and_long_term_reproductive_strategy_in_the_King_Penguin_Aptenodytes_patagonicus","translated_internal_url":"","created_at":"2024-12-06T08:46:51.548-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":42816241,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":120043893,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/120043893/thumbnails/1.jpg","file_name":"j.1474-919x.1999.tb04411.x20241206-1-igxwqb.pdf","download_url":"https://www.academia.edu/attachments/120043893/download_file?st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Individual_breeding_decisions_and_long_t.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/120043893/j.1474-919x.1999.tb04411.x20241206-1-igxwqb-libre.pdf?1733507585=\u0026response-content-disposition=attachment%3B+filename%3DIndividual_breeding_decisions_and_long_t.pdf\u0026Expires=1734193922\u0026Signature=TpAGrtKY0GN3cmhNLkLPl3EVEc9qebj3LSdRlvse8gFjBUkdKy6y6vEKhjPx-SX7a-t9ZBo6xizlIGkdsQJ4S3Ou87zMx~UnP8QKhJgLiuiSj87j9049YiLZPAIZfU51UgJZGEHKqLZaluvEyenoFPbp~nAiPtOHRk3rktWH7ZUPKMH4Jlpt6szFkOrfyHkpMmuCeiywpP1dWuv9QLcMFA~NUDzoXiTD-u8Di6Z7b0XSueh~pQjSH4oT6jUVHMzxQw8RomOhJKMJZ-QXuWS4x8Cqm25o8zhvFHJavA5qI9Cd1m0g8ZwuRMV50W0xQ15aS5JAtuobwpnvRJFbZ2LweQ__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Individual_breeding_decisions_and_long_term_reproductive_strategy_in_the_King_Penguin_Aptenodytes_patagonicus","translated_slug":"","page_count":6,"language":"en","content_type":"Work","summary":"Although studied for 3 5 years, knowledge of the reproductive biology of the King Penguin Aptenodytes patagoiziczis remains incomplete. 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Among several hypotheses, sexual selection for mutual mate choice and social selection for signals of behavioural dominance are most commonly supported. We examined the previously documented sex-similar size of yellow-orange ear patches in the king penguin, Aptenodytes patagonicus. This species is monogamous and pairs just before reproduction. Raising a chick requires considerable effort by both parents, as they alternate care of their single offspring with foraging at sea. The size of the ear patches appears to signal aggressive territoriality in the breeding colony for both sexes. However, experiments suggest that females prefer large patch size during mate choice, and males do not prefer this trait. We tested whether the size of the coloured ear patch was influenced by sexual selection for couples that had recently paired. We used analyses of covariance to compare the size of the ear patch to a measure of body size and then tested for the difference between males and females. Males were 6.2% larger in ear patch width and 7.7% larger in ear patch area than females, and the distance between the ear patches over the head was 7.5% smaller in males, with all differences highly significant. Consequently, sexual selection appears to favour larger ear patches in males, possibly because of an excess of males that promotes female choice. Social selection also appears to favour the evolutionary maintenance of ear patches of males, and thus both types of selection may contribute to enlarged ear patches.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="7a2ac20e11ce0418de2528e01f08514c" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":120043891,"asset_id":126117272,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/120043891/download_file?st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&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="126117272"><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="126117272"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 126117272; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=126117272]").text(description); $(".js-view-count[data-work-id=126117272]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 126117272; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='126117272']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 126117272, 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: "7a2ac20e11ce0418de2528e01f08514c" } } $('.js-work-strip[data-work-id=126117272]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":126117272,"title":"Sexual Selection on a Coloured Ornament in King Penguins","translated_title":"","metadata":{"publisher":"Wiley-Blackwell","grobid_abstract":"Species in which the sexes equally exhibit colourful ornaments are an issue for evolutionary theory. Among several hypotheses, sexual selection for mutual mate choice and social selection for signals of behavioural dominance are most commonly supported. We examined the previously documented sex-similar size of yellow-orange ear patches in the king penguin, Aptenodytes patagonicus. This species is monogamous and pairs just before reproduction. Raising a chick requires considerable effort by both parents, as they alternate care of their single offspring with foraging at sea. The size of the ear patches appears to signal aggressive territoriality in the breeding colony for both sexes. However, experiments suggest that females prefer large patch size during mate choice, and males do not prefer this trait. We tested whether the size of the coloured ear patch was influenced by sexual selection for couples that had recently paired. We used analyses of covariance to compare the size of the ear patch to a measure of body size and then tested for the difference between males and females. Males were 6.2% larger in ear patch width and 7.7% larger in ear patch area than females, and the distance between the ear patches over the head was 7.5% smaller in males, with all differences highly significant. Consequently, sexual selection appears to favour larger ear patches in males, possibly because of an excess of males that promotes female choice. Social selection also appears to favour the evolutionary maintenance of ear patches of males, and thus both types of selection may contribute to enlarged ear patches.","publication_date":{"day":17,"month":8,"year":2011,"errors":{}},"publication_name":"Ethology","grobid_abstract_attachment_id":120043891},"translated_abstract":null,"internal_url":"https://www.academia.edu/126117272/Sexual_Selection_on_a_Coloured_Ornament_in_King_Penguins","translated_internal_url":"","created_at":"2024-12-06T08:46:51.323-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":42816241,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":120043891,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/120043891/thumbnails/1.jpg","file_name":"j.1439-0310.2011.01940.x20241206-1-j01gv6.pdf","download_url":"https://www.academia.edu/attachments/120043891/download_file?st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Sexual_Selection_on_a_Coloured_Ornament.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/120043891/j.1439-0310.2011.01940.x20241206-1-j01gv6-libre.pdf?1733507584=\u0026response-content-disposition=attachment%3B+filename%3DSexual_Selection_on_a_Coloured_Ornament.pdf\u0026Expires=1734193922\u0026Signature=do9Pk6UoEVTv76w9np3fg-23V8CqjqVhvrExSb06ONMX3iSVajRH3NKMW0PswrQeuzwv13JSpWRB1KFyh4DBucNdihOHBt5hHO6K3-ekqiUkbDt0Gl0NukLEP3pmyNGyKxqyEjAfTBki0j0JDhMu2Pbe8UPswdr4YYT4sm6~Qw5ulo9hs4WFF5UKwtUj-ZDGpcWS0K9Ih5Hx-FJpxE56BEf9~JEQn21vdh9qs97PNCXnkpEd~UyMVUOiluLESxzTVwfxPUrd1jHBR~J-1P8RnBiWaYXOHEEcrGKndWa0t-KjMOkQNVIwcvFQm9VhrGTeZwQnjxAt2FMG-oLqAqv~5Q__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Sexual_Selection_on_a_Coloured_Ornament_in_King_Penguins","translated_slug":"","page_count":8,"language":"en","content_type":"Work","summary":"Species in which the sexes equally exhibit colourful ornaments are an issue for evolutionary theory. Among several hypotheses, sexual selection for mutual mate choice and social selection for signals of behavioural dominance are most commonly supported. We examined the previously documented sex-similar size of yellow-orange ear patches in the king penguin, Aptenodytes patagonicus. This species is monogamous and pairs just before reproduction. Raising a chick requires considerable effort by both parents, as they alternate care of their single offspring with foraging at sea. The size of the ear patches appears to signal aggressive territoriality in the breeding colony for both sexes. However, experiments suggest that females prefer large patch size during mate choice, and males do not prefer this trait. We tested whether the size of the coloured ear patch was influenced by sexual selection for couples that had recently paired. We used analyses of covariance to compare the size of the ear patch to a measure of body size and then tested for the difference between males and females. Males were 6.2% larger in ear patch width and 7.7% larger in ear patch area than females, and the distance between the ear patches over the head was 7.5% smaller in males, with all differences highly significant. Consequently, sexual selection appears to favour larger ear patches in males, possibly because of an excess of males that promotes female choice. Social selection also appears to favour the evolutionary maintenance of ear patches of males, and thus both types of selection may contribute to enlarged ear patches.","owner":{"id":42816241,"first_name":"pierre","middle_initials":null,"last_name":"Jouventin","page_name":"pierreJouventin","domain_name":"independent","created_at":"2016-02-07T12:10:55.000-08:00","display_name":"pierre Jouventin","url":"https://independent.academia.edu/pierreJouventin"},"attachments":[{"id":120043891,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/120043891/thumbnails/1.jpg","file_name":"j.1439-0310.2011.01940.x20241206-1-j01gv6.pdf","download_url":"https://www.academia.edu/attachments/120043891/download_file?st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Sexual_Selection_on_a_Coloured_Ornament.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/120043891/j.1439-0310.2011.01940.x20241206-1-j01gv6-libre.pdf?1733507584=\u0026response-content-disposition=attachment%3B+filename%3DSexual_Selection_on_a_Coloured_Ornament.pdf\u0026Expires=1734193922\u0026Signature=do9Pk6UoEVTv76w9np3fg-23V8CqjqVhvrExSb06ONMX3iSVajRH3NKMW0PswrQeuzwv13JSpWRB1KFyh4DBucNdihOHBt5hHO6K3-ekqiUkbDt0Gl0NukLEP3pmyNGyKxqyEjAfTBki0j0JDhMu2Pbe8UPswdr4YYT4sm6~Qw5ulo9hs4WFF5UKwtUj-ZDGpcWS0K9Ih5Hx-FJpxE56BEf9~JEQn21vdh9qs97PNCXnkpEd~UyMVUOiluLESxzTVwfxPUrd1jHBR~J-1P8RnBiWaYXOHEEcrGKndWa0t-KjMOkQNVIwcvFQm9VhrGTeZwQnjxAt2FMG-oLqAqv~5Q__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":155,"name":"Evolutionary Biology","url":"https://www.academia.edu/Documents/in/Evolutionary_Biology"},{"id":173,"name":"Zoology","url":"https://www.academia.edu/Documents/in/Zoology"},{"id":179,"name":"Ethology","url":"https://www.academia.edu/Documents/in/Ethology"},{"id":221,"name":"Psychology","url":"https://www.academia.edu/Documents/in/Psychology"},{"id":4299,"name":"Mate Choice","url":"https://www.academia.edu/Documents/in/Mate_Choice"},{"id":7044,"name":"Sexual Selection","url":"https://www.academia.edu/Documents/in/Sexual_Selection"},{"id":7710,"name":"Biology","url":"https://www.academia.edu/Documents/in/Biology"},{"id":46474,"name":"Territoriality","url":"https://www.academia.edu/Documents/in/Territoriality"},{"id":56474,"name":"Foraging","url":"https://www.academia.edu/Documents/in/Foraging"},{"id":133085,"name":"Trait","url":"https://www.academia.edu/Documents/in/Trait"}],"urls":[{"id":45946716,"url":"https://doi.org/10.1111/j.1439-0310.2011.01940.x"}]}, 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="126117269"><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/126117269/Comparative_Population_Biology_of_Four_Prions_Genus_Pachyptila_from_the_Indian_Ocean_and_Consequences_for_Their_Taxonomic_Status"><img alt="Research paper thumbnail of Comparative Population Biology of Four Prions (Genus Pachyptila) from the Indian Ocean and Consequences for Their Taxonomic Status" class="work-thumbnail" src="https://attachments.academia-assets.com/120043889/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/126117269/Comparative_Population_Biology_of_Four_Prions_Genus_Pachyptila_from_the_Indian_Ocean_and_Consequences_for_Their_Taxonomic_Status">Comparative Population Biology of Four Prions (Genus Pachyptila) from the Indian Ocean and Consequences for Their Taxonomic Status</a></div><div class="wp-workCard_item"><span>The Auk</span><span>, Apr 1, 1990</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">We studied the morphometrics, breeding biology, genetics, and calls of Pachyptila desolata, P. sa...</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">We studied the morphometrics, breeding biology, genetics, and calls of Pachyptila desolata, P. salvini, P. belcheri, and P. turtur in the southern Indian Ocean. Multivariate analysis of the measurements of live birds revealed some overlap among closely related taxa. Comparisons of biological data provided evidence for ecological segregation between taxa, based mainly on phenology of breeding but also on diet. Calls differed significantly between taxa, and multivariate analysis showed no overlap between syrupattic taxa. These data were then compared with data from other taxa (P. crassirostris and macgillivrayi) and from different localities. We support the recognition at the species level of each of the four study taxa.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="60e64fa8bf1bad2596f4ed4d062bf915" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":120043889,"asset_id":126117269,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/120043889/download_file?st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&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="126117269"><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="126117269"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 126117269; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=126117269]").text(description); $(".js-view-count[data-work-id=126117269]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 126117269; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='126117269']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 126117269, 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: "60e64fa8bf1bad2596f4ed4d062bf915" } } $('.js-work-strip[data-work-id=126117269]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":126117269,"title":"Comparative Population Biology of Four Prions (Genus Pachyptila) from the Indian Ocean and Consequences for Their Taxonomic Status","translated_title":"","metadata":{"publisher":"American Ornithological Society","grobid_abstract":"We studied the morphometrics, breeding biology, genetics, and calls of Pachyptila desolata, P. salvini, P. belcheri, and P. turtur in the southern Indian Ocean. 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dispatcherData: dispatcherData }); $(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="4563158" id="papers"><div class="js-work-strip profile--work_container" data-work-id="126117292"><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/126117292/Le_Chant_Du_Manchot_Empereur_Et_Sa_Signification_Adaptative"><img alt="Research paper thumbnail of Le Chant Du Manchot Empereur Et Sa Signification Adaptative" class="work-thumbnail" src="https://attachments.academia-assets.com/120043899/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/126117292/Le_Chant_Du_Manchot_Empereur_Et_Sa_Signification_Adaptative">Le Chant Du Manchot Empereur Et Sa Signification Adaptative</a></div><div class="wp-workCard_item"><span>Behaviour</span><span>, 1979</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="493c42c56d40740cbc742b5f926dcbed" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":120043899,"asset_id":126117292,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/120043899/download_file?st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&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" 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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/126117289/Visual_and_vocal_signals_in_penguins_their_evolution_and_adaptive_characters_Pierre_Jouventin">Visual and vocal signals in penguins, their evolution and adaptive characters/ Pierre Jouventin</a></div><div class="wp-workCard_item"><span>P. Parey eBooks</span><span>, 1982</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Abstract 1. Compared the sexual and aggressive behavior of all genera of penguins to determine th...</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">Abstract 1. Compared the sexual and aggressive behavior of all genera of penguins to determine the biological meaning of ritualized attitudes. Optical and vocal signals are also investigated, and the evolution of penguin behavior is dealt with, along with ...</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="126117289"><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="126117289"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 126117289; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=126117289]").text(description); $(".js-view-count[data-work-id=126117289]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 126117289; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='126117289']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 126117289, 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" } } $('.js-work-strip[data-work-id=126117289]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":126117289,"title":"Visual and vocal signals in penguins, their evolution and adaptive characters/ Pierre Jouventin","translated_title":"","metadata":{"abstract":"Abstract 1. Compared the sexual and aggressive behavior of all genera of penguins to determine the biological meaning of ritualized attitudes. Optical and vocal signals are also investigated, and the evolution of penguin behavior is dealt with, along with ...","publisher":"P. Parey","publication_date":{"day":null,"month":null,"year":1982,"errors":{}},"publication_name":"P. Parey eBooks"},"translated_abstract":"Abstract 1. Compared the sexual and aggressive behavior of all genera of penguins to determine the biological meaning of ritualized attitudes. 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Optical and vocal signals are also investigated, and the evolution of penguin behavior is dealt with, along with ...","owner":{"id":42816241,"first_name":"pierre","middle_initials":null,"last_name":"Jouventin","page_name":"pierreJouventin","domain_name":"independent","created_at":"2016-02-07T12:10:55.000-08:00","display_name":"pierre Jouventin","url":"https://independent.academia.edu/pierreJouventin"},"attachments":[],"research_interests":[{"id":859,"name":"Communication","url":"https://www.academia.edu/Documents/in/Communication"},{"id":7710,"name":"Biology","url":"https://www.academia.edu/Documents/in/Biology"}],"urls":[{"id":45946732,"url":"http://ci.nii.ac.jp/ncid/BA21423560"}]}, 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="126117288"><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/126117288/Immunocompetence_is_signalled_by_ornamental_colour_in_king_penguins_Aptenodytes_patagonicus"><img alt="Research paper thumbnail of Immunocompetence is signalled by ornamental colour in king penguins, Aptenodytes patagonicus" class="work-thumbnail" src="https://attachments.academia-assets.com/120043900/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/126117288/Immunocompetence_is_signalled_by_ornamental_colour_in_king_penguins_Aptenodytes_patagonicus">Immunocompetence is signalled by ornamental colour in king penguins, Aptenodytes patagonicus</a></div><div class="wp-workCard_item"><span>Evolutionary Ecology Research</span><span>, 2006</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Hypothesis: Colourful ornaments reveal an individual's immunocompetence, allowing birds to choose...</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">Hypothesis: Colourful ornaments reveal an individual's immunocompetence, allowing birds to choose mates on the basis of these characters. Organism: King penguins, Aptenodytes patagonicus. Field site: Colony of approximately 16,000 breeding pairs on Possession Island in the Crozet Archipelago, southern Indian Ocean. Methods: We measured foot-web swelling in males resulting from experimental injection of a novel mitogen (phytohaemagglutinin, PHA) and compared that measure of immunocompetence with colours of the beak spot and plumage. Conclusions: Breast plumage colour is a reliable indicator of immunocompetence in king penguins. Breast plumage colour appears to rely on the presence of pterin pigments, and the fact that pterins are implicated in immune function may underlie the honesty of this signal.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="2c502e7a12392cfd3e3d87384126fb11" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":120043900,"asset_id":126117288,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/120043900/download_file?st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&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="126117288"><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="126117288"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 126117288; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=126117288]").text(description); $(".js-view-count[data-work-id=126117288]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 126117288; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='126117288']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 126117288, 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: "2c502e7a12392cfd3e3d87384126fb11" } } $('.js-work-strip[data-work-id=126117288]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":126117288,"title":"Immunocompetence is signalled by ornamental colour in king penguins, Aptenodytes patagonicus","translated_title":"","metadata":{"publisher":"Evolutionary Ecology Ltd.","grobid_abstract":"Hypothesis: Colourful ornaments reveal an individual's immunocompetence, allowing birds to choose mates on the basis of these characters. 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href="https://www.academia.edu/126117287/Les_strat%C3%A9gies_adaptatives_des_oiseaux_de_mer"><img alt="Research paper thumbnail of Les stratégies adaptatives des oiseaux de mer" class="work-thumbnail" src="https://attachments.academia-assets.com/120043870/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/126117287/Les_strat%C3%A9gies_adaptatives_des_oiseaux_de_mer">Les stratégies adaptatives des oiseaux de mer</a></div><div class="wp-workCard_item"><span>Revue D Ecologie-la Terre Et La Vie</span><span>, 1981</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Megadyp tes an tipodes EudypteS robus eus Eudyptes pachyrhynchus Eudyp tula minor minor Eudyp cut...</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">Megadyp tes an tipodes EudypteS robus eus Eudyptes pachyrhynchus Eudyp tula minor minor Eudyp cuta minor iredalei</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="e6c20855d20c02fc0dad6d2fe5a6981c" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":120043870,"asset_id":126117287,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/120043870/download_file?st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&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 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data-work-id="126117284"><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/126117284/High_annual_variability_in_reproductive_success_and_survival_of_an_Antarctic_seabird_the_snow_petrel_Pagodroma_nivea"><img alt="Research paper thumbnail of High annual variability in reproductive success and survival of an Antarctic seabird, the snow petrel Pagodroma nivea" class="work-thumbnail" src="https://attachments.academia-assets.com/120043898/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/126117284/High_annual_variability_in_reproductive_success_and_survival_of_an_Antarctic_seabird_the_snow_petrel_Pagodroma_nivea">High annual variability in reproductive success and survival of an Antarctic seabird, the snow petrel Pagodroma nivea</a></div><div class="wp-workCard_item"><span>Oecologia</span><span>, 1993</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Demographic parameters were estimated for snow petrels Pagodroma nivea nesting at Pointe G6ologie...</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">Demographic parameters were estimated for snow petrels Pagodroma nivea nesting at Pointe G6ologie Archipelago, Ad61ie Land, Antarctica between 1963 and 1990; 21 years of data on adult survival and 27 years of data on breeding success are available. The average age of first return and first breeding were 8.1 and 9.9 years respectively and there was no significant difference between the sexes. The overall breeding success averaged 51.3% and was very variable between years (21-80%). Breeding failure was mostly due to incubation failure and annual breeding success was negatively correlated with average snow falls in October-November and October-March. Breeding frequency was very low, averaging 52% of seasons during a reproductive lifetime. Good quality sites, with high occupancy rate and high breeding success were few in the study plots.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="75650844372fa51a2fa3ed971a033d1d" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":120043898,"asset_id":126117284,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/120043898/download_file?st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&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="126117284"><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="126117284"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 126117284; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=126117284]").text(description); $(".js-view-count[data-work-id=126117284]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 126117284; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='126117284']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 126117284, 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: "75650844372fa51a2fa3ed971a033d1d" } } $('.js-work-strip[data-work-id=126117284]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":126117284,"title":"High annual variability in reproductive success and survival of an Antarctic seabird, the snow petrel Pagodroma nivea","translated_title":"","metadata":{"publisher":"Springer Science+Business Media","grobid_abstract":"Demographic parameters were estimated for snow petrels Pagodroma nivea nesting at Pointe G6ologie Archipelago, Ad61ie Land, Antarctica between 1963 and 1990; 21 years of data on adult survival and 27 years of data on breeding success are available. 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Species typically ...</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">Some penguin species are shy because they were threatened by human activities. Species typically differ in head pattern and by voice. On land, head pattern and voice influence mate choice by reflecting species, sexual maturity, and body condition. They act as ethological mechanisms of reproductive isolation, each species being adapted to a special mass of water, with unique temperature and salinity. Speciation in penguins depends both on distances among islands (geographical speciation) and on the sea temperature of the water mass (oceanographic speciation). As recent DNA analyses revealed and behavioral studies suggested more than 35 years ago, populations of pelagic feeding Rockhopper penguins have diverged in water masses of different temperatures. Thus, oceanographic speciation was a major factor producing new species. Contrarily, Gentoo penguins are coastal feeders, and geographic speciation has produced divergent and distant populations. So new species are likely in penguins, and they must be considered by conservation biologists.</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="126117283"><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="126117283"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 126117283; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=126117283]").text(description); $(".js-view-count[data-work-id=126117283]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 126117283; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='126117283']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 126117283, 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" } } $('.js-work-strip[data-work-id=126117283]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":126117283,"title":"The Evolution of Communication","translated_title":"","metadata":{"abstract":"Some penguin species are shy because they were threatened by human activities. Species typically differ in head pattern and by voice. On land, head pattern and voice influence mate choice by reflecting species, sexual maturity, and body condition. They act as ethological mechanisms of reproductive isolation, each species being adapted to a special mass of water, with unique temperature and salinity. Speciation in penguins depends both on distances among islands (geographical speciation) and on the sea temperature of the water mass (oceanographic speciation). As recent DNA analyses revealed and behavioral studies suggested more than 35 years ago, populations of pelagic feeding Rockhopper penguins have diverged in water masses of different temperatures. Thus, oceanographic speciation was a major factor producing new species. Contrarily, Gentoo penguins are coastal feeders, and geographic speciation has produced divergent and distant populations. So new species are likely in penguins, and they must be considered by conservation biologists.","publication_date":{"day":null,"month":null,"year":2018,"errors":{}}},"translated_abstract":"Some penguin species are shy because they were threatened by human activities. Species typically differ in head pattern and by voice. On land, head pattern and voice influence mate choice by reflecting species, sexual maturity, and body condition. They act as ethological mechanisms of reproductive isolation, each species being adapted to a special mass of water, with unique temperature and salinity. Speciation in penguins depends both on distances among islands (geographical speciation) and on the sea temperature of the water mass (oceanographic speciation). As recent DNA analyses revealed and behavioral studies suggested more than 35 years ago, populations of pelagic feeding Rockhopper penguins have diverged in water masses of different temperatures. Thus, oceanographic speciation was a major factor producing new species. Contrarily, Gentoo penguins are coastal feeders, and geographic speciation has produced divergent and distant populations. So new species are likely in penguins, and they must be considered by conservation biologists.","internal_url":"https://www.academia.edu/126117283/The_Evolution_of_Communication","translated_internal_url":"","created_at":"2024-12-06T08:46:55.096-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":42816241,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[],"slug":"The_Evolution_of_Communication","translated_slug":"","page_count":null,"language":"en","content_type":"Work","summary":"Some penguin species are shy because they were threatened by human activities. Species typically differ in head pattern and by voice. On land, head pattern and voice influence mate choice by reflecting species, sexual maturity, and body condition. They act as ethological mechanisms of reproductive isolation, each species being adapted to a special mass of water, with unique temperature and salinity. Speciation in penguins depends both on distances among islands (geographical speciation) and on the sea temperature of the water mass (oceanographic speciation). As recent DNA analyses revealed and behavioral studies suggested more than 35 years ago, populations of pelagic feeding Rockhopper penguins have diverged in water masses of different temperatures. Thus, oceanographic speciation was a major factor producing new species. Contrarily, Gentoo penguins are coastal feeders, and geographic speciation has produced divergent and distant populations. So new species are likely in penguins, and they must be considered by conservation biologists.","owner":{"id":42816241,"first_name":"pierre","middle_initials":null,"last_name":"Jouventin","page_name":"pierreJouventin","domain_name":"independent","created_at":"2016-02-07T12:10:55.000-08:00","display_name":"pierre Jouventin","url":"https://independent.academia.edu/pierreJouventin"},"attachments":[],"research_interests":[{"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":30329,"name":"Genetic Algorithm","url":"https://www.academia.edu/Documents/in/Genetic_Algorithm"},{"id":358670,"name":"Reproductive Isolation","url":"https://www.academia.edu/Documents/in/Reproductive_Isolation"},{"id":376955,"name":"Threatened Species","url":"https://www.academia.edu/Documents/in/Threatened_Species"},{"id":3816195,"name":"pelagic zone","url":"https://www.academia.edu/Documents/in/pelagic_zone"}],"urls":[{"id":45946726,"url":"https://doi.org/10.1016/b978-0-12-811178-9.00006-8"}]}, 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="126117279"><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/126117279/Experiments_on_Visual_Signals"><img alt="Research paper thumbnail of Experiments on Visual Signals" 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/126117279/Experiments_on_Visual_Signals">Experiments on Visual Signals</a></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">All species of penguins have color ornaments or black-and-white markings on the head that are pre...</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">All species of penguins have color ornaments or black-and-white markings on the head that are presented during nuptial displays. This suggests that they are used in mate choice and evolve by sexual selection. Because a high degree of cooperation by both mates is required for successful breeding, mate choice is important. We modified the ornaments of penguins, especially the highly ornamented King penguins, concluding that mutual mate choice occurred but was not equal between the sexes. We found a new signal, ultraviolet (UV) color, in large nonnesting penguins. Their beaks reflect yellow/orange carotenoid pigments and UV from beak spots. A new pigment, Spheniscin, is reflected from ear and breast feather patches. Females preferred males with larger ear patches, so both mutual and female-based selection occurred. The UV signal was dynamic and changed with body condition during fasting and with parasite density. Pigmented ornaments changed color according to the richness of marine resources.</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="126117279"><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="126117279"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 126117279; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=126117279]").text(description); $(".js-view-count[data-work-id=126117279]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 126117279; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='126117279']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 126117279, 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" } } $('.js-work-strip[data-work-id=126117279]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":126117279,"title":"Experiments on Visual Signals","translated_title":"","metadata":{"abstract":"All species of penguins have color ornaments or black-and-white markings on the head that are presented during nuptial displays. 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The UV signal was dynamic and changed with body condition during fasting and with parasite density. Pigmented ornaments changed color according to the richness of marine resources.","internal_url":"https://www.academia.edu/126117279/Experiments_on_Visual_Signals","translated_internal_url":"","created_at":"2024-12-06T08:46:52.925-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":42816241,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[],"slug":"Experiments_on_Visual_Signals","translated_slug":"","page_count":null,"language":"en","content_type":"Work","summary":"All species of penguins have color ornaments or black-and-white markings on the head that are presented during nuptial displays. This suggests that they are used in mate choice and evolve by sexual selection. Because a high degree of cooperation by both mates is required for successful breeding, mate choice is important. We modified the ornaments of penguins, especially the highly ornamented King penguins, concluding that mutual mate choice occurred but was not equal between the sexes. We found a new signal, ultraviolet (UV) color, in large nonnesting penguins. Their beaks reflect yellow/orange carotenoid pigments and UV from beak spots. A new pigment, Spheniscin, is reflected from ear and breast feather patches. Females preferred males with larger ear patches, so both mutual and female-based selection occurred. The UV signal was dynamic and changed with body condition during fasting and with parasite density. 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$(this).data('initialized', true); } }); $a.trackClickSource(".js-work-strip-work-link", "profile_work_strip") }); </script> <div class="js-work-strip profile--work_container" data-work-id="126117278"><div class="profile--work_thumbnail hidden-xs"><a class="js-work-strip-work-link" data-click-track="profile-work-strip-thumbnail" rel="nofollow" href="https://www.academia.edu/126117278/Have_Giant_Petrels_Macronectes_Spp_Really_Increased_at_Iles_Crozet"><img alt="Research paper thumbnail of Have Giant Petrels Macronectes Spp. Really Increased at Iles Crozet" class="work-thumbnail" src="https://a.academia-assets.com/images/blank-paper.jpg" /></a></div><div class="wp-workCard wp-workCard_itemContainer"><div class="wp-workCard_item wp-workCard--title"><a class="js-work-strip-work-link text-gray-darker" data-click-track="profile-work-strip-title" rel="nofollow" href="https://www.academia.edu/126117278/Have_Giant_Petrels_Macronectes_Spp_Really_Increased_at_Iles_Crozet">Have Giant Petrels Macronectes Spp. Really Increased at Iles Crozet</a></div><div class="wp-workCard_item"><span>Marine ornithology</span><span>, Apr 15, 1991</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><span class="wp-workCard--action visible-if-viewed-by-owner inline-block" style="display: none;"><span class="js-profile-work-strip-edit-button-wrapper profile-work-strip-edit-button-wrapper" data-work-id="126117278"><a class="js-profile-work-strip-edit-button" tabindex="0"><span><i class="fa fa-pencil"></i></span><span>Edit</span></a></span></span><span id="work-strip-rankings-button-container"></span></div><div class="wp-workCard_item wp-workCard--stats"><span><span><span class="js-view-count view-count u-mr2x" data-work-id="126117278"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 126117278; 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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="126117277"><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/126117277/_Electrophoretic_distance_between_the_Mandrill_and_the_Drill_authors_transl_"><img alt="Research paper thumbnail of [Electrophoretic distance between the Mandrill and the Drill (author's transl)]" 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/126117277/_Electrophoretic_distance_between_the_Mandrill_and_the_Drill_authors_transl_">[Electrophoretic distance between the Mandrill and the Drill (author's transl)]</a></div><div class="wp-workCard_item"><span>PubMed</span><span>, 1980</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The Mandrill (Mandrillus sphinx) and the Drill (M. leucophaeus) differ by approximately 30% of th...</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">The Mandrill (Mandrillus sphinx) and the Drill (M. leucophaeus) differ by approximately 30% of their genes as shown by electrophoretic studies. The reasons of this differenciation are discussed with regard to divergence of characters, geographical isolation, and social organization of both species.</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="126117277"><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="126117277"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 126117277; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=126117277]").text(description); $(".js-view-count[data-work-id=126117277]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 126117277; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='126117277']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 126117277, 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" } } $('.js-work-strip[data-work-id=126117277]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":126117277,"title":"[Electrophoretic distance between the Mandrill and the Drill (author's transl)]","translated_title":"","metadata":{"abstract":"The Mandrill (Mandrillus sphinx) and the Drill (M. leucophaeus) differ by approximately 30% of their genes as shown by electrophoretic studies. 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The reasons of this differenciation are discussed with regard to divergence of characters, geographical isolation, and social organization of both species.","owner":{"id":42816241,"first_name":"pierre","middle_initials":null,"last_name":"Jouventin","page_name":"pierreJouventin","domain_name":"independent","created_at":"2016-02-07T12:10:55.000-08:00","display_name":"pierre Jouventin","url":"https://independent.academia.edu/pierreJouventin"},"attachments":[],"research_interests":[{"id":7710,"name":"Biology","url":"https://www.academia.edu/Documents/in/Biology"},{"id":26327,"name":"Medicine","url":"https://www.academia.edu/Documents/in/Medicine"},{"id":56475,"name":"Papio","url":"https://www.academia.edu/Documents/in/Papio"},{"id":86337,"name":"Gabon","url":"https://www.academia.edu/Documents/in/Gabon"},{"id":98939,"name":"Pubmed","url":"https://www.academia.edu/Documents/in/Pubmed"},{"id":191815,"name":"Biological evolution","url":"https://www.academia.edu/Documents/in/Biological_evolution"},{"id":1593060,"name":"Blood Proteins","url":"https://www.academia.edu/Documents/in/Blood_Proteins"}],"urls":[{"id":45946720,"url":"https://pubmed.ncbi.nlm.nih.gov/6965840"}]}, 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="126117275"><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/126117275/A_New_Species_of_Small_Flightless_Duck_from_Amsterdam_Island_Southern_Indian_Ocean_Anatidae_Anas_"><img alt="Research paper thumbnail of A New Species of Small Flightless Duck from Amsterdam Island, Southern Indian Ocean (Anatidae: Anas)" class="work-thumbnail" src="https://attachments.academia-assets.com/120043892/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/126117275/A_New_Species_of_Small_Flightless_Duck_from_Amsterdam_Island_Southern_Indian_Ocean_Anatidae_Anas_">A New Species of Small Flightless Duck from Amsterdam Island, Southern Indian Ocean (Anatidae: Anas)</a></div><div class="wp-workCard_item"><span>The Condor</span><span>, Feb 1, 1996</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">The islands of Amsterdam and St. Paul each appear to have been inhabited by endemic populations o...</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">The islands of Amsterdam and St. Paul each appear to have been inhabited by endemic populations of ducks that were exterminated by humans or human-introduced mammals in the past two hundred years. The duck from St. Paul is known only from a historical account in 1793. Abundant bone remains of a duck from Amsterdam Island are described as a new species, Anas marecula. This was a small, teal-sized species with very reduced wings and pectoral girdle, so that it was certainly flightless. The short, pointed bill suggests a possible derivation of the species from an ancestor related to the widgeons formerly segregated in the genus Mareca.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="a4fc97cc414bab6e97b90f8216f216bc" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":120043892,"asset_id":126117275,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/120043892/download_file?st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&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="126117275"><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="126117275"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 126117275; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=126117275]").text(description); $(".js-view-count[data-work-id=126117275]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 126117275; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='126117275']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 126117275, 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: "a4fc97cc414bab6e97b90f8216f216bc" } } $('.js-work-strip[data-work-id=126117275]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":126117275,"title":"A New Species of Small Flightless Duck from Amsterdam Island, Southern Indian Ocean (Anatidae: Anas)","translated_title":"","metadata":{"publisher":"Cooper Ornithological Society","grobid_abstract":"The islands of Amsterdam and St. Paul each appear to have been inhabited by endemic populations of ducks that were exterminated by humans or human-introduced mammals in the past two hundred years. 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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="126117274"><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/126117274/UV_signals_in_penguins"><img alt="Research paper thumbnail of UV signals in penguins" 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/126117274/UV_signals_in_penguins">UV signals in penguins</a></div><div class="wp-workCard_item"><span>Polar Biology</span><span>, Jan 14, 2009</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">In a past issue of Polar Biology, Meyer-Rochow andShimoyama (2008) conclude their article with “u...</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">In a past issue of Polar Biology, Meyer-Rochow andShimoyama (2008) conclude their article with “unless evi-dence can be provided in favour of, Wrstly, UV sensitiveretinal receptors in penguins and, secondly, a behaviouralrole for a UV pattern of a penguin, we would regard UVreXectivity in penguins as a biologically unimportant phe-nomenon, associated with optical properties of a structureat a particular stage of growth and development.” Here, weexpress our dissent from this statement and provide furtherevidence strongly suggesting the signi Wcance of UV signalsin intraspeciWc penguin communication.First, Bowmaker and Martin (1985) found that the conetypes of Humboldt penguins</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="126117274"><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="126117274"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 126117274; 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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="126117273"><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/126117273/Individual_breeding_decisions_and_long_term_reproductive_strategy_in_the_King_Penguin_Aptenodytes_patagonicus"><img alt="Research paper thumbnail of Individual breeding decisions and long-term reproductive strategy in the King Penguin Aptenodytes patagonicus" class="work-thumbnail" src="https://attachments.academia-assets.com/120043893/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/126117273/Individual_breeding_decisions_and_long_term_reproductive_strategy_in_the_King_Penguin_Aptenodytes_patagonicus">Individual breeding decisions and long-term reproductive strategy in the King Penguin Aptenodytes patagonicus</a></div><div class="wp-workCard_item"><span>Ibis</span><span>, Jun 28, 2008</span></div><div class="wp-workCard_item"><span class="js-work-more-abstract-truncated">Although studied for 3 5 years, knowledge of the reproductive biology of the King Penguin Aptenod...</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 studied for 3 5 years, knowledge of the reproductive biology of the King Penguin Aptenodytes patagoiziczis remains incomplete. The chick requires more than 12 months of care, which extends the breeding cycle, including moult, to more than one year, i.e. the King Penguin is neither annual nor biennial. In an attempt to resolve ambiguities in the literature and to elucidate the long-term breeding strategy of the species, we studied breeding frequency at the individual level, considering the decision to breed in relation to breeding history over the previous few years. Although adult birds attempted to breed annually (0.83 breeding attempts per year), successful rearing occurred, a t best, every two years only (maximum of 0.41 fledged chick per pair). Comparing successive years, the number of breeding birds in the colony was stable but the number of fledged chicks varied from 29 to 278 over eight years. These results suggest that King Penguins adopt (as individuals) an opportunistic reproductive strategy, in that they usually lay an egg every year, even when failure is certain. Nevertheless, the decision t o breed was not entirely blind, and we identified groups of birds that invested differentially in breeding attempts.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="9c268a09b0bd9103b015941ba21fd387" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":120043893,"asset_id":126117273,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/120043893/download_file?st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&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="126117273"><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="126117273"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 126117273; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=126117273]").text(description); $(".js-view-count[data-work-id=126117273]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 126117273; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='126117273']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 126117273, 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: "9c268a09b0bd9103b015941ba21fd387" } } $('.js-work-strip[data-work-id=126117273]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":126117273,"title":"Individual breeding decisions and long-term reproductive strategy in the King Penguin Aptenodytes patagonicus","translated_title":"","metadata":{"publisher":"Wiley-Blackwell","grobid_abstract":"Although studied for 3 5 years, knowledge of the reproductive biology of the King Penguin Aptenodytes patagoiziczis remains incomplete. 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Nevertheless, the decision t o breed was not entirely blind, and we identified groups of birds that invested differentially in breeding attempts.","publication_date":{"day":28,"month":6,"year":2008,"errors":{}},"publication_name":"Ibis","grobid_abstract_attachment_id":120043893},"translated_abstract":null,"internal_url":"https://www.academia.edu/126117273/Individual_breeding_decisions_and_long_term_reproductive_strategy_in_the_King_Penguin_Aptenodytes_patagonicus","translated_internal_url":"","created_at":"2024-12-06T08:46:51.548-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":42816241,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":120043893,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/120043893/thumbnails/1.jpg","file_name":"j.1474-919x.1999.tb04411.x20241206-1-igxwqb.pdf","download_url":"https://www.academia.edu/attachments/120043893/download_file?st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Individual_breeding_decisions_and_long_t.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/120043893/j.1474-919x.1999.tb04411.x20241206-1-igxwqb-libre.pdf?1733507585=\u0026response-content-disposition=attachment%3B+filename%3DIndividual_breeding_decisions_and_long_t.pdf\u0026Expires=1734193922\u0026Signature=TpAGrtKY0GN3cmhNLkLPl3EVEc9qebj3LSdRlvse8gFjBUkdKy6y6vEKhjPx-SX7a-t9ZBo6xizlIGkdsQJ4S3Ou87zMx~UnP8QKhJgLiuiSj87j9049YiLZPAIZfU51UgJZGEHKqLZaluvEyenoFPbp~nAiPtOHRk3rktWH7ZUPKMH4Jlpt6szFkOrfyHkpMmuCeiywpP1dWuv9QLcMFA~NUDzoXiTD-u8Di6Z7b0XSueh~pQjSH4oT6jUVHMzxQw8RomOhJKMJZ-QXuWS4x8Cqm25o8zhvFHJavA5qI9Cd1m0g8ZwuRMV50W0xQ15aS5JAtuobwpnvRJFbZ2LweQ__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Individual_breeding_decisions_and_long_term_reproductive_strategy_in_the_King_Penguin_Aptenodytes_patagonicus","translated_slug":"","page_count":6,"language":"en","content_type":"Work","summary":"Although studied for 3 5 years, knowledge of the reproductive biology of the King Penguin Aptenodytes patagoiziczis remains incomplete. 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Among several hypotheses, sexual selection for mutual mate choice and social selection for signals of behavioural dominance are most commonly supported. We examined the previously documented sex-similar size of yellow-orange ear patches in the king penguin, Aptenodytes patagonicus. This species is monogamous and pairs just before reproduction. Raising a chick requires considerable effort by both parents, as they alternate care of their single offspring with foraging at sea. The size of the ear patches appears to signal aggressive territoriality in the breeding colony for both sexes. However, experiments suggest that females prefer large patch size during mate choice, and males do not prefer this trait. We tested whether the size of the coloured ear patch was influenced by sexual selection for couples that had recently paired. We used analyses of covariance to compare the size of the ear patch to a measure of body size and then tested for the difference between males and females. Males were 6.2% larger in ear patch width and 7.7% larger in ear patch area than females, and the distance between the ear patches over the head was 7.5% smaller in males, with all differences highly significant. Consequently, sexual selection appears to favour larger ear patches in males, possibly because of an excess of males that promotes female choice. Social selection also appears to favour the evolutionary maintenance of ear patches of males, and thus both types of selection may contribute to enlarged ear patches.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="7a2ac20e11ce0418de2528e01f08514c" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":120043891,"asset_id":126117272,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/120043891/download_file?st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&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="126117272"><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="126117272"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 126117272; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=126117272]").text(description); $(".js-view-count[data-work-id=126117272]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 126117272; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='126117272']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 126117272, 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: "7a2ac20e11ce0418de2528e01f08514c" } } $('.js-work-strip[data-work-id=126117272]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":126117272,"title":"Sexual Selection on a Coloured Ornament in King Penguins","translated_title":"","metadata":{"publisher":"Wiley-Blackwell","grobid_abstract":"Species in which the sexes equally exhibit colourful ornaments are an issue for evolutionary theory. Among several hypotheses, sexual selection for mutual mate choice and social selection for signals of behavioural dominance are most commonly supported. We examined the previously documented sex-similar size of yellow-orange ear patches in the king penguin, Aptenodytes patagonicus. This species is monogamous and pairs just before reproduction. Raising a chick requires considerable effort by both parents, as they alternate care of their single offspring with foraging at sea. The size of the ear patches appears to signal aggressive territoriality in the breeding colony for both sexes. However, experiments suggest that females prefer large patch size during mate choice, and males do not prefer this trait. We tested whether the size of the coloured ear patch was influenced by sexual selection for couples that had recently paired. We used analyses of covariance to compare the size of the ear patch to a measure of body size and then tested for the difference between males and females. Males were 6.2% larger in ear patch width and 7.7% larger in ear patch area than females, and the distance between the ear patches over the head was 7.5% smaller in males, with all differences highly significant. Consequently, sexual selection appears to favour larger ear patches in males, possibly because of an excess of males that promotes female choice. Social selection also appears to favour the evolutionary maintenance of ear patches of males, and thus both types of selection may contribute to enlarged ear patches.","publication_date":{"day":17,"month":8,"year":2011,"errors":{}},"publication_name":"Ethology","grobid_abstract_attachment_id":120043891},"translated_abstract":null,"internal_url":"https://www.academia.edu/126117272/Sexual_Selection_on_a_Coloured_Ornament_in_King_Penguins","translated_internal_url":"","created_at":"2024-12-06T08:46:51.323-08:00","preview_url":null,"current_user_can_edit":null,"current_user_is_owner":null,"owner_id":42816241,"coauthors_can_edit":true,"document_type":"paper","co_author_tags":[],"downloadable_attachments":[{"id":120043891,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/120043891/thumbnails/1.jpg","file_name":"j.1439-0310.2011.01940.x20241206-1-j01gv6.pdf","download_url":"https://www.academia.edu/attachments/120043891/download_file?st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Sexual_Selection_on_a_Coloured_Ornament.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/120043891/j.1439-0310.2011.01940.x20241206-1-j01gv6-libre.pdf?1733507584=\u0026response-content-disposition=attachment%3B+filename%3DSexual_Selection_on_a_Coloured_Ornament.pdf\u0026Expires=1734193922\u0026Signature=do9Pk6UoEVTv76w9np3fg-23V8CqjqVhvrExSb06ONMX3iSVajRH3NKMW0PswrQeuzwv13JSpWRB1KFyh4DBucNdihOHBt5hHO6K3-ekqiUkbDt0Gl0NukLEP3pmyNGyKxqyEjAfTBki0j0JDhMu2Pbe8UPswdr4YYT4sm6~Qw5ulo9hs4WFF5UKwtUj-ZDGpcWS0K9Ih5Hx-FJpxE56BEf9~JEQn21vdh9qs97PNCXnkpEd~UyMVUOiluLESxzTVwfxPUrd1jHBR~J-1P8RnBiWaYXOHEEcrGKndWa0t-KjMOkQNVIwcvFQm9VhrGTeZwQnjxAt2FMG-oLqAqv~5Q__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"slug":"Sexual_Selection_on_a_Coloured_Ornament_in_King_Penguins","translated_slug":"","page_count":8,"language":"en","content_type":"Work","summary":"Species in which the sexes equally exhibit colourful ornaments are an issue for evolutionary theory. Among several hypotheses, sexual selection for mutual mate choice and social selection for signals of behavioural dominance are most commonly supported. We examined the previously documented sex-similar size of yellow-orange ear patches in the king penguin, Aptenodytes patagonicus. This species is monogamous and pairs just before reproduction. Raising a chick requires considerable effort by both parents, as they alternate care of their single offspring with foraging at sea. The size of the ear patches appears to signal aggressive territoriality in the breeding colony for both sexes. However, experiments suggest that females prefer large patch size during mate choice, and males do not prefer this trait. We tested whether the size of the coloured ear patch was influenced by sexual selection for couples that had recently paired. We used analyses of covariance to compare the size of the ear patch to a measure of body size and then tested for the difference between males and females. Males were 6.2% larger in ear patch width and 7.7% larger in ear patch area than females, and the distance between the ear patches over the head was 7.5% smaller in males, with all differences highly significant. Consequently, sexual selection appears to favour larger ear patches in males, possibly because of an excess of males that promotes female choice. Social selection also appears to favour the evolutionary maintenance of ear patches of males, and thus both types of selection may contribute to enlarged ear patches.","owner":{"id":42816241,"first_name":"pierre","middle_initials":null,"last_name":"Jouventin","page_name":"pierreJouventin","domain_name":"independent","created_at":"2016-02-07T12:10:55.000-08:00","display_name":"pierre Jouventin","url":"https://independent.academia.edu/pierreJouventin"},"attachments":[{"id":120043891,"title":"","file_type":"pdf","scribd_thumbnail_url":"https://attachments.academia-assets.com/120043891/thumbnails/1.jpg","file_name":"j.1439-0310.2011.01940.x20241206-1-j01gv6.pdf","download_url":"https://www.academia.edu/attachments/120043891/download_file?st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&","bulk_download_file_name":"Sexual_Selection_on_a_Coloured_Ornament.pdf","bulk_download_url":"https://d1wqtxts1xzle7.cloudfront.net/120043891/j.1439-0310.2011.01940.x20241206-1-j01gv6-libre.pdf?1733507584=\u0026response-content-disposition=attachment%3B+filename%3DSexual_Selection_on_a_Coloured_Ornament.pdf\u0026Expires=1734193922\u0026Signature=do9Pk6UoEVTv76w9np3fg-23V8CqjqVhvrExSb06ONMX3iSVajRH3NKMW0PswrQeuzwv13JSpWRB1KFyh4DBucNdihOHBt5hHO6K3-ekqiUkbDt0Gl0NukLEP3pmyNGyKxqyEjAfTBki0j0JDhMu2Pbe8UPswdr4YYT4sm6~Qw5ulo9hs4WFF5UKwtUj-ZDGpcWS0K9Ih5Hx-FJpxE56BEf9~JEQn21vdh9qs97PNCXnkpEd~UyMVUOiluLESxzTVwfxPUrd1jHBR~J-1P8RnBiWaYXOHEEcrGKndWa0t-KjMOkQNVIwcvFQm9VhrGTeZwQnjxAt2FMG-oLqAqv~5Q__\u0026Key-Pair-Id=APKAJLOHF5GGSLRBV4ZA"}],"research_interests":[{"id":155,"name":"Evolutionary Biology","url":"https://www.academia.edu/Documents/in/Evolutionary_Biology"},{"id":173,"name":"Zoology","url":"https://www.academia.edu/Documents/in/Zoology"},{"id":179,"name":"Ethology","url":"https://www.academia.edu/Documents/in/Ethology"},{"id":221,"name":"Psychology","url":"https://www.academia.edu/Documents/in/Psychology"},{"id":4299,"name":"Mate Choice","url":"https://www.academia.edu/Documents/in/Mate_Choice"},{"id":7044,"name":"Sexual Selection","url":"https://www.academia.edu/Documents/in/Sexual_Selection"},{"id":7710,"name":"Biology","url":"https://www.academia.edu/Documents/in/Biology"},{"id":46474,"name":"Territoriality","url":"https://www.academia.edu/Documents/in/Territoriality"},{"id":56474,"name":"Foraging","url":"https://www.academia.edu/Documents/in/Foraging"},{"id":133085,"name":"Trait","url":"https://www.academia.edu/Documents/in/Trait"}],"urls":[{"id":45946716,"url":"https://doi.org/10.1111/j.1439-0310.2011.01940.x"}]}, dispatcherData: dispatcherData }); 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Multivariate analysis of the measurements of live birds revealed some overlap among closely related taxa. Comparisons of biological data provided evidence for ecological segregation between taxa, based mainly on phenology of breeding but also on diet. Calls differed significantly between taxa, and multivariate analysis showed no overlap between syrupattic taxa. These data were then compared with data from other taxa (P. crassirostris and macgillivrayi) and from different localities. We support the recognition at the species level of each of the four study taxa.</span></div><div class="wp-workCard_item wp-workCard--actions"><span class="work-strip-bookmark-button-container"></span><a id="60e64fa8bf1bad2596f4ed4d062bf915" class="wp-workCard--action" rel="nofollow" data-click-track="profile-work-strip-download" data-download="{"attachment_id":120043889,"asset_id":126117269,"asset_type":"Work","button_location":"profile"}" href="https://www.academia.edu/attachments/120043889/download_file?st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&st=MTczNDE5MDMyMiw4LjIyMi4yMDguMTQ2&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="126117269"><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="126117269"><i class="fa fa-spinner fa-spin"></i></span><script>$(function () { var workId = 126117269; window.Academia.workViewCountsFetcher.queue(workId, function (count) { var description = window.$h.commaizeInt(count) + " " + window.$h.pluralize(count, 'View'); $(".js-view-count[data-work-id=126117269]").text(description); $(".js-view-count[data-work-id=126117269]").attr('title', description).tooltip(); }); });</script></span></span><span><span class="percentile-widget hidden"><span class="u-mr2x work-percentile"></span></span><script>$(function () { var workId = 126117269; window.Academia.workPercentilesFetcher.queue(workId, function (percentileText) { var container = $(".js-work-strip[data-work-id='126117269']"); container.find('.work-percentile').text(percentileText.charAt(0).toUpperCase() + percentileText.slice(1)); container.find('.percentile-widget').show(); container.find('.percentile-widget').removeClass('hidden'); }); });</script></span><span><script>$(function() { new Works.PaperRankView({ workId: 126117269, 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: "60e64fa8bf1bad2596f4ed4d062bf915" } } $('.js-work-strip[data-work-id=126117269]').each(function() { if (!$(this).data('initialized')) { new WowProfile.WorkStripView({ el: this, workJSON: {"id":126117269,"title":"Comparative Population Biology of Four Prions (Genus Pachyptila) from the Indian Ocean and Consequences for Their Taxonomic Status","translated_title":"","metadata":{"publisher":"American Ornithological Society","grobid_abstract":"We studied the morphometrics, breeding biology, genetics, and calls of Pachyptila desolata, P. salvini, P. belcheri, and P. turtur in the southern Indian Ocean. 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