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A new terrestrial palaeoenvironmental record from the Bering Land Bridge and context for human dispersal - PubMed

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class="collections-new" name="collections" value="new" data-ga-category="save_share" data-ga-action="collections" data-ga-label="collections_radio_new"> <label for="collections-action-panel-new">Create a new collection</label> </li> <li> <input type="radio" id="collections-action-panel-existing" class="collections-existing" name="collections" value="existing" checked="true" data-ga-category="save_share" data-ga-action="collections" data-ga-label="collections_radio_existing"> <label for="collections-action-panel-existing">Add to an existing collection</label> </li> </ul> </div> <div class="controls-wrapper"> <div class="action-panel-control-wrap new-collections-controls"> <label for="collections-action-panel-add-to-new" class="action-panel-label required-field-asterisk"> Name your collection: </label> <input type="text" name="add-to-new-collection" id="collections-action-panel-add-to-new" class="collections-action-add-to-new" pattern="[^&quot;&amp;=&lt;&gt;\/]*" title="The following characters are not allowed in the Name field: &quot;&amp;=&lt;&gt;/" maxlength="100" data-ga-category="save_share" data-ga-action="create_collection" data-ga-label="non_favorties_collection"> <div class="collections-new-name-too-long usa-input-error-message selection-validation-message"> Name must be less than 100 characters </div> </div> <div class="action-panel-control-wrap existing-collections-controls"> <label for="collections-action-panel-add-to-existing" class="action-panel-label"> Choose a collection: </label> <select id="collections-action-panel-add-to-existing" class="action-panel-selector collections-action-add-to-existing" data-ga-category="save_share" data-ga-action="select_collection" data-ga-label="($('#collections-action-add-to-existing').val() === 'Favorites') ? 'Favorites' : 'non_favorites_collection'"> </select> <div class="collections-retry-load-on-error usa-input-error-message selection-validation-message"> Unable to load your collection due to an error<br> <a href="#">Please try again</a> </div> </div> </div> <div class="action-panel-actions"> <button class="action-panel-submit" type="submit" data-loading-label="Adding..." data-pinger-ignore data-ga-category="save_share" data-ga-action="collections" data-ga-label="add"> Add </button> <button class="action-panel-cancel" aria-label="Close 'Add to Collections' panel" ref="linksrc=close_collections_panel" aria-controls="collections-action-panel" aria-expanded="false" data-ga-category="save_share" data-ga-action="collections" data-ga-label="cancel"> Cancel </button> </div> </form> </div> </div> <div id="bibliography-action-panel" class="bibliography-action-panel action-panel in-progress-dots-panel" aria-hidden="true" data-bibliography-open-panel-enabled="false" data-bibliography-open-panel-url-hash="#open-bibliography-panel"> <div class="inner-wrap"> <h3 class="action-panel-heading"> Add to My Bibliography </h3> <form id="bibliography-action-panel-form" class="bibliography-action-panel-form action-panel-content action-form action-panel-smaller-selectors" data-add-to-bibliography-max-amount="100" data-add-to-bibliography-batch-size="10" data-bibliography-delegates-url="/list-bibliography-delegates/" data-add-to-bibliography-url="/add-to-bibliography/" data-get-article-ids-by-search-url="/get-article-ids-by-search/" data-mybib-root-url="https://www.ncbi.nlm.nih.gov/myncbi/collections/mybibliography/"> <input type="hidden" name="csrfmiddlewaretoken" value="P8CsCFzqjW1BXo0kRRYV44vJKWJJkrh7OTwHQSImrGvMuHEzybUJMMVF6oZMdb7X"> <div class="action-panel-control-wrap bibliographies-controls"> <div class="choice-group"> <ul class="bibliographies-action-add radio-group-items"> <li> <input name="bibliography" id="my-bibliography" class="my-bibliography" type="radio" checked/> <label for="my-bibliography">My Bibliography</label> </li> </ul> </div> </div> <div class="bibliographies-retry-load-on-error usa-input-error-message selection-validation-message"> Unable to load your delegates due to an error<br> <a href="#">Please try again</a> </div> <div class="action-panel-actions"> <button class="action-panel-submit" type="submit" data-loading-label="Adding..." data-pinger-ignore> Add </button> <button class="action-panel-cancel" aria-label="Close 'Add to bibliography' panel" ref="linksrc=close_bibliography_panel" aria-controls="bibliography-action-panel" aria-expanded="false" data-ga-category="save_share" data-ga-action="mybib" data-ga-label="cancel"> Cancel </button> </div> </form> </div> </div> <div id="saved-search-action-panel" class="saved-search-action-panel action-panel " aria-hidden="true" data-saved-search-open-panel-enabled="false" data-saved-search-open-panel-url-hash="#open-saved-search-panel"> <div class="inner-wrap"> <h2 class="action-panel-heading"> Your saved search </h2> <form id="saved-search-action-panel-form" class="saved-search-action-panel-form action-panel-content action-form" data-create-saved-search-url="/create-saved-search/" data-try-search-terms-url="/try-search-term/" data-saved-search-root-url="https://www.ncbi.nlm.nih.gov/myncbi/searches/"> <input type="hidden" name="csrfmiddlewaretoken" value="P8CsCFzqjW1BXo0kRRYV44vJKWJJkrh7OTwHQSImrGvMuHEzybUJMMVF6oZMdb7X"> <div class="action-panel-control-wrap"> <label for="saved-search-name" class="action-panel-label saved-search-name-label required-field-asterisk"> Name of saved search: </label> <input maxlength="200" type="text" name="saved-search-name" id="saved-search-name" class="saved-search-name" value="" required pattern="[^&quot;&amp;=&lt;&gt;\/]*" title="The following characters are not allowed in the Name field: &quot;&amp;=&lt;&gt;/"> </div> <div class="action-panel-control-wrap"> <label for="saved-search-term" class="action-panel-label required-field-asterisk"> Search terms: </label> <textarea name="saved-search-term" id="saved-search-term" class="saved-search-term" required></textarea> </div> <div class="test-search-term-wrap"> <a href="#" class="try-search-term">Test search terms</a> </div> <div class="choice-group action-panel-extra-margin-top"> <span class="action-panel-label" id="fieldset-label"> Would you like email updates of new search results? </span> <fieldset id="saved-search-alert" aria-describedby="fieldset-label"> <legend class="usa-sr-only">Saved Search Alert Radio Buttons</legend> <ul class="radio-group-items"> <li> <input type="radio" id="saved-search-alert-yes" class="saved-search-alert-yes" name="saved-search-alert" value="yes" checked> <label for="saved-search-alert-yes" class="action-panel-label">Yes</label> </li> <li> <input aria-label="No radio input" type="radio" id="saved-search-alert-no" class="saved-search-alert-no" name="saved-search-alert" value="no"> <label for="saved-search-alert-no" class="action-panel-label">No</label> </li> </ul> </fieldset> </div> <div class="alert-schedule-wrap"> <div class="action-panel-control-wrap"> <label class="action-panel-label"> Email: </label> <span aria-label="Email address" id="saved-search-email" class="action-panel-label"><span class="action-panel-label-bold"></span> (<a class="myncbi-account-settings" href="https://www.ncbi.nlm.nih.gov/account/settings/">change</a>)</span> </div> <div class="action-panel-control-wrap action-panel-extra-margin-top"> <label for="saved-search-frequency" class="action-panel-label"> Frequency: </label> <select id="saved-search-frequency" class="no-border-panel-selector saved-search-frequency"> <option value="monthly">Monthly</option> <option value="weekly">Weekly</option> <option value="daily">Daily</option> </select> </div> <div class="action-panel-control-wrap saved-search-monthly-additional"> <label for="saved-search-monthly-on-day" class="action-panel-label"> Which day? </label> <select id="saved-search-monthly-on-day" class="no-border-panel-selector"> <option value="Sunday">The first Sunday</option> <option value="Monday">The first Monday</option> <option value="Tuesday">The first Tuesday</option> <option value="Wednesday">The first Wednesday</option> <option value="Thursday">The first Thursday</option> <option value="Friday">The first Friday</option> <option value="Saturday">The first Saturday</option> <option value="day">The first day</option> <option value="weekday">The first weekday</option> </select> </div> <div class="action-panel-control-wrap saved-search-weekly-additional"> <label for="saved-search-weekly-on-day" class="action-panel-label"> Which day? </label> <select id="saved-search-weekly-on-day" class="no-border-panel-selector saved-search-weekly-on-day"> <option value="Sunday">Sunday</option> <option value="Monday">Monday</option> <option value="Tuesday">Tuesday</option> <option value="Wednesday">Wednesday</option> <option value="Thursday">Thursday</option> <option value="Friday">Friday</option> <option value="Saturday">Saturday</option> </select> </div> <div class="action-panel-control-wrap"> <label for="saved-search-report" class="action-panel-label"> Report format: </label> <select id="saved-search-report" class="no-border-panel-selector saved-search-report"> <option value="DocSum">Summary</option> <option value="DocSumText">Summary (text)</option> <option value="Abstract">Abstract</option> <option value="AbstractText">Abstract (text)</option> <option value="MEDLINE">PubMed</option> </select> </div> <div class="action-panel-control-wrap"> <label for="saved-search-amount" class="action-panel-label"> Send at most: </label> <select id="saved-search-amount" class="no-border-panel-selector saved-search-amount"> <option value="1">1 item</option> <option value="5" selected>5 items</option> <option value="10">10 items</option> <option value="20">20 items</option> <option value="50">50 items</option> <option value="100">100 items</option> <option value="200">200 items</option> </select> </div> <div> <input type="checkbox" id="saved-search-send-if-no-result" class="saved-search-send-if-no-result" name="saved-search-send-if-no-result"> <label for="saved-search-send-if-no-result" class="action-panel-label smaller-checkbox"> Send even when there aren't any new results </label> </div> <div class="action-panel-control-wrap option-text-in-email-wrap"> <label for="saved-search-email-text" class="action-panel-label"> Optional text in email: </label> <textarea name="saved-search-email-text" id="saved-search-email-text" class="saved-search-email-text"></textarea> </div> </div> <div class="action-panel-actions"> <button class="action-panel-submit" type="submit" data-loading-label="Saving..." data-ga-category="save_share" data-ga-action="alert" data-ga-label="save"> Save </button> <button class="action-panel-cancel" aria-label="Close 'Your saved search' panel" ref="linksrc=close_saved_search_panel" aria-controls="saved-search-action-panel" aria-expanded="false" data-ga-category="save_share" data-ga-action="alert" data-ga-label="cancel"> Cancel </button> </div> </form> </div> </div> <div id="citation-manager-action-panel" class="citation-manager-action-panel action-panel" aria-hidden="true"> <div class="inner-wrap"> <h2 class="action-panel-heading"> Create a file for external citation management software </h2> <form id="citation-manager-action-panel-form" class="action-panel-content action-form" action="/results-export-ids/" data-by-search-action="/results-export-search-data/" data-by-ids-action="/results-export-ids/" method="post" data-by-search-method="post" data-by-ids-method="post"> <input type="hidden" name="csrfmiddlewaretoken" value="P8CsCFzqjW1BXo0kRRYV44vJKWJJkrh7OTwHQSImrGvMuHEzybUJMMVF6oZMdb7X"> <input name="results-format" type="hidden" value="pubmed"/> <div class="action-panel-actions"> <button class="action-panel-submit" type="submit" data-loading-label="Sending..." data-ga-category="save_share" data-ga-action="citation_manager" data-ga-label="save"> Create file </button> <button class="action-panel-cancel" aria-label="Close 'Send citations to citation manager' panel" ref="linksrc=close_citation_manager_panel" aria-controls="citation-manager-action-panel" aria-expanded="false" data-ga-category="save_share" data-ga-action="citation_manager" data-ga-label="cancel"> Cancel </button> </div> </form> </div> </div> <div id="rss-action-panel" class="rss-action-panel action-panel " aria-hidden="true"> <div class="inner-wrap"> <h2 class="action-panel-heading"> Your RSS Feed </h2> <form id="rss-action-panel-form" class="rss-action-panel-form action-panel-content action-form" data-create-rss-feed-url="/create-rss-feed-url/" data-search-form-term-value=""> <input type="hidden" name="csrfmiddlewaretoken" value="P8CsCFzqjW1BXo0kRRYV44vJKWJJkrh7OTwHQSImrGvMuHEzybUJMMVF6oZMdb7X"> <div class="action-panel-control-wrap"> <label for="rss-name" class="action-panel-label required-field-asterisk"> Name of RSS Feed: </label> <input maxlength="200" placeholder="Name" type="text" name="rss-name" id="rss-name" class="rss-name" value='' required pattern="[^&quot;&amp;=&lt;&gt;\/]*" title="The following characters are not allowed in the Name field: &quot;&amp;=&lt;&gt;/"> </div> <div class="rss-limit-wrap"> <div class="action-panel-control-wrap action-panel-extra-margin-top"> <label for="rss-limit" class="action-panel-label"> Number of items displayed: </label> <select id="rss-limit" class="no-border-panel-selector rss-limit"> <option value="5">5</option> <option value="10">10</option> <option value="15" selected="selected">15</option> <option value="20">20</option> <option value="50">50</option> <option value="100">100</option> </select> </div> </div> <div class="action-panel-actions"> <button class="action-panel-submit" type="submit" data-loading-label="Creating..." data-ga-category="save_share" data-ga-action="alert" data-ga-label="save"> Create RSS </button> <button class="action-panel-cancel" aria-label="Close 'Your RSS' panel" ref="linksrc=close_rss_panel" aria-controls="rss-action-panel" aria-expanded="false" data-ga-category="save_share" data-ga-action="alert" data-ga-label="cancel"> Cancel </button> </div> <div class="action-panel-control-wrap rss-link-copy-wrap"> <label for="rss-link" class="usa-sr-only">RSS Link</label> <input placeholder="Your RSS Feed Link" type="text" name="rss-link" id="rss-link" class="rss-link" title="RSS Link"> <button type="button" disabled class="rss-link-copy-button disabled" data-ga-category="save_share" data-ga-action="rss" data-ga-label="copy"> Copy </button> </div> </form> </div> </div> </div> </div> <div class="article-page" id="article-page" data-article-pmid="30110451"> <aside class="page-sidebar"> <div class="inner-wrap"> <div class="full-text-links"> <div class="full-view"> <h3 class="title"> Full text links </h3> <div class="full-text-links-list"> <a 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class="action-panel-control-wrap new-collections-controls"><label for="collections-action-dialog-add-to-new" class="action-panel-label required-field-asterisk"> Name your collection: </label><input type="text" name="add-to-new-collection" id="collections-action-dialog-add-to-new" class="collections-action-add-to-new" pattern="[^&quot;&amp;=&lt;&gt;\/]*" title="The following characters are not allowed in the Name field: &quot;&amp;=&lt;&gt;/" maxlength="100" data-ga-category="collections_button" data-ga-action="create_collection" data-ga-label="non_favorties_collection"><div class="collections-new-name-too-long usa-input-error-message selection-validation-message"> Name must be less than 100 characters </div></div><div class="action-panel-control-wrap existing-collections-controls"><label for="collections-action-dialog-add-to-existing" class="action-panel-label"> Choose a collection: </label><select id="collections-action-dialog-add-to-existing" class="action-panel-selector 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'Favorites' : 'non_favorites_collection'"></select><div class="collections-retry-load-on-error usa-input-error-message selection-validation-message"> Unable to load your collection due to an error<br><a href="#">Please try again</a></div></div></div><div class="action-panel-actions"><button class="action-panel-submit" type="submit" data-loading-label="Adding..." data-pinger-ignore data-ga-category="collections_button" data-ga-action="click" data-ga-label="add"> Add </button><button class="action-panel-cancel" aria-label="Close 'Add to Collections' panel" ref="linksrc=close_collections_panel" aria-controls="collections-action-panel" aria-expanded="false" data-ga-category="collections_button" data-ga-action="click" data-ga-label="cancel"> Cancel </button></div></form></div></div></div></div><button class="more-actions-button more-actions-dialog-trigger" title="Open dialog with more actions to take" ref="linksrc=more_actions_btn"></button><div class="display-options" 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class="heading" id="heading"> <div class="full-view" id="full-view-heading"> <div class="article-citation"> <div class="article-source"> <div class="journal-actions dropdown-block"><button id="full-view-journal-trigger" class="journal-actions-trigger trigger" ref="linksrc=journal_actions_btn" title="Royal Society open science" tabindex="0" aria-controls="full-view-journal" aria-expanded="false" aria-label="Toggle dropdown menu for journal Royal Society open science" data-pinger-ignore> R Soc Open Sci </button><div id="full-view-journal" class="journal-actions-dropdown dropdown dropdown-container" hidden aria-label="Dropdown menu for journal Royal Society open science"><div class="title">Actions</div><div class="content"><ul class="journal-actions-links"><li><a class="search-in-pubmed-link dropdown-block-link" href="/?term=%22R+Soc+Open+Sci%22%5Bjour%5D&amp;sort=date&amp;sort_order=desc" data-href="/?term=%22R+Soc+Open+Sci%22%5Bjour%5D&amp;sort=date&amp;sort_order=desc" 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eCollection 2018 Jun. </span> </div> <h1 class="heading-title"> A new terrestrial palaeoenvironmental record from the Bering Land Bridge and context for human dispersal </h1> <div class="inline-authors"> <div class="authors"> <div class="authors-list"> <span class="authors-list-item "><a class="full-name" href="/?term=Wooller+MJ&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Matthew J Wooller">Matthew J Wooller</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Water and Environmental Research Center, Institute of Northern Engineering, Fairbanks, AK, USA." href="#full-view-affiliation-1" ref="linksrc=author_aff"> 1 </a><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Alaska Stable Isotope Facility, College of Fisheries and Ocean Sciences, Fairbanks, AK, USA." href="#full-view-affiliation-2" ref="linksrc=author_aff"> 2 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Saulnier-Talbot+%C3%89&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Émilie Saulnier-Talbot">Émilie Saulnier-Talbot</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Water and Environmental Research Center, Institute of Northern Engineering, Fairbanks, AK, USA." href="#full-view-affiliation-1" ref="linksrc=author_aff"> 1 </a><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Alaska Stable Isotope Facility, College of Fisheries and Ocean Sciences, Fairbanks, AK, USA." href="#full-view-affiliation-2" ref="linksrc=author_aff"> 2 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Potter+BA&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Ben A Potter">Ben A Potter</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Department of Anthropology, Fairbanks, AK, USA." href="#full-view-affiliation-3" ref="linksrc=author_aff"> 3 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Belmecheri+S&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Soumaya Belmecheri">Soumaya Belmecheri</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Laboratory of Tree Ring Research, University of Arizona, Tucson, AZ, USA." href="#full-view-affiliation-4" ref="linksrc=author_aff"> 4 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Bigelow+N&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Nancy Bigelow">Nancy Bigelow</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Alaska Quaternary Center, University of Alaska Fairbanks, Fairbanks, AK, USA." href="#full-view-affiliation-5" ref="linksrc=author_aff"> 5 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Choy+K&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Kyungcheol Choy">Kyungcheol Choy</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Water and Environmental Research Center, Institute of Northern Engineering, Fairbanks, AK, USA." href="#full-view-affiliation-1" ref="linksrc=author_aff"> 1 </a><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Alaska Stable Isotope Facility, College of Fisheries and Ocean Sciences, Fairbanks, AK, USA." href="#full-view-affiliation-2" ref="linksrc=author_aff"> 2 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Cwynar+LC&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Les C Cwynar">Les C Cwynar</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Department of Biology, University of New Brunswick, Fredericton, New Brunswick, Canada." href="#full-view-affiliation-6" ref="linksrc=author_aff"> 6 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Davies+K&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Kimberley Davies">Kimberley Davies</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Department of Geography and Environment, University of Southampton, Southampton, Hampshire, UK." href="#full-view-affiliation-7" ref="linksrc=author_aff"> 7 </a><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="School of Geography, Earth and Environmental Sciences, Plymouth University, Plymouth, UK." href="#full-view-affiliation-8" ref="linksrc=author_aff"> 8 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Graham+RW&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Russell W Graham">Russell W Graham</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Department of Geosciences and Earth and Mineral Sciences Museum &amp; Art Gallery, The Pennsylvania State University, University Park, PA, USA." href="#full-view-affiliation-9" ref="linksrc=author_aff"> 9 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Kurek+J&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Joshua Kurek">Joshua Kurek</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Department of Geography and Environment, Mount Allison University, Sackville, New Brunswick, Canada." href="#full-view-affiliation-10" ref="linksrc=author_aff"> 10 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Langdon+P&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Peter Langdon">Peter Langdon</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Department of Geography and Environment, University of Southampton, Southampton, Hampshire, UK." href="#full-view-affiliation-7" ref="linksrc=author_aff"> 7 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Medeiros+A&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Andrew Medeiros">Andrew Medeiros</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="York University, Toronto, Canada." href="#full-view-affiliation-11" ref="linksrc=author_aff"> 11 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Rawcliffe+R&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Ruth Rawcliffe">Ruth Rawcliffe</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Water and Environmental Research Center, Institute of Northern Engineering, Fairbanks, AK, USA." href="#full-view-affiliation-1" ref="linksrc=author_aff"> 1 </a><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Alaska Stable Isotope Facility, College of Fisheries and Ocean Sciences, Fairbanks, AK, USA." href="#full-view-affiliation-2" ref="linksrc=author_aff"> 2 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Wang+Y&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Yue Wang">Yue Wang</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Department of Geography, University of Wisconsin-Madison, Madison, WI, USA." href="#full-view-affiliation-12" ref="linksrc=author_aff"> 12 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Williams+JW&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="John W Williams">John W Williams</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Department of Geography, University of Wisconsin-Madison, Madison, WI, USA." href="#full-view-affiliation-12" ref="linksrc=author_aff"> 12 </a><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Center for Climatic Research, University of Wisconsin-Madison, Madison, WI, USA." href="#full-view-affiliation-13" ref="linksrc=author_aff"> 13 </a></sup></span> </div> </div> </div> <div class="short-article-details"> Affiliations <button class="more-details" id="toggle-authors" data-alt-text="Collapse" aria-controls="expanded-authors" aria-expanded="false" data-pinger-ignore data-fetch-url="/30110451/long-authors/" data-id-prefix=""> <span class="title"> Expand </span> </button> </div> <div class="extended-article-details" id="expanded-authors" aria-hidden="true"> <div class="expanded-authors" id="full-view-expanded-authors"> <div class="affiliations"> <h3 class="title"> Affiliations </h3> <ul class="item-list"> <li data-affiliation-id="full-view-affiliation-1" id="full-view-affiliation-1" ><sup class="key">1</sup> Water and Environmental Research Center, Institute of Northern Engineering, Fairbanks, AK, USA.</li> <li data-affiliation-id="full-view-affiliation-2" id="full-view-affiliation-2" ><sup class="key">2</sup> Alaska Stable Isotope Facility, College of Fisheries and Ocean Sciences, Fairbanks, AK, USA.</li> <li data-affiliation-id="full-view-affiliation-3" id="full-view-affiliation-3" ><sup class="key">3</sup> Department of Anthropology, Fairbanks, AK, USA.</li> <li data-affiliation-id="full-view-affiliation-4" id="full-view-affiliation-4" ><sup class="key">4</sup> Laboratory of Tree Ring Research, University of Arizona, Tucson, AZ, USA.</li> <li data-affiliation-id="full-view-affiliation-5" id="full-view-affiliation-5" ><sup class="key">5</sup> Alaska Quaternary Center, University of Alaska Fairbanks, Fairbanks, AK, USA.</li> <li data-affiliation-id="full-view-affiliation-6" id="full-view-affiliation-6" ><sup class="key">6</sup> Department of Biology, University of New Brunswick, Fredericton, New Brunswick, Canada.</li> <li data-affiliation-id="full-view-affiliation-7" id="full-view-affiliation-7" ><sup class="key">7</sup> Department of Geography and Environment, University of Southampton, Southampton, Hampshire, UK.</li> <li data-affiliation-id="full-view-affiliation-8" id="full-view-affiliation-8" ><sup class="key">8</sup> School of Geography, Earth and Environmental Sciences, Plymouth University, Plymouth, UK.</li> <li data-affiliation-id="full-view-affiliation-9" id="full-view-affiliation-9" ><sup class="key">9</sup> Department of Geosciences and Earth and Mineral Sciences Museum &amp; Art Gallery, The Pennsylvania State University, University Park, PA, USA.</li> <li data-affiliation-id="full-view-affiliation-10" id="full-view-affiliation-10" ><sup class="key">10</sup> Department of Geography and Environment, Mount Allison University, Sackville, New Brunswick, Canada.</li> <li data-affiliation-id="full-view-affiliation-11" id="full-view-affiliation-11" ><sup class="key">11</sup> York University, Toronto, Canada.</li> <li data-affiliation-id="full-view-affiliation-12" id="full-view-affiliation-12" ><sup class="key">12</sup> Department of Geography, University of Wisconsin-Madison, Madison, WI, USA.</li> <li data-affiliation-id="full-view-affiliation-13" id="full-view-affiliation-13" ><sup class="key">13</sup> Center for Climatic Research, University of Wisconsin-Madison, Madison, WI, USA.</li> </ul> </div> </div> </div> <ul class="identifiers" id="full-view-identifiers"> <li> <span class="identifier pubmed"> <span class="id-label"> PMID: </span> <strong class="current-id" title="PubMed ID">30110451</strong> </span> </li> <li> <span class="identifier pmc"> <span class="id-label"> PMCID: </span> <a class="id-link" target="_blank" rel="noopener" ref="linksrc=article_id_link&amp;article_id=PMC6030284&amp;id_type=PMC" href="https://pmc.ncbi.nlm.nih.gov/articles/PMC6030284/" data-ga-category="full_text" data-ga-action="PMCID" > PMC6030284 </a> </span> </li> <li> <span class="identifier doi"> <span class="id-label"> DOI: </span> <a class="id-link" target="_blank" rel="noopener" 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class="citation-doi"> doi: 10.1098/rsos.180145. </span> <span class="secondary-date"> eCollection 2018 Jun. </span> </div> <div class="expanded-authors" id="short-view-expanded-authors"> <div class="authors"> <h3 class="title"> Authors </h3> <div class="authors-list"> <span class="authors-list-item "><a class="full-name" href="/?term=Wooller+MJ&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Matthew J Wooller">Matthew J Wooller</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Water and Environmental Research Center, Institute of Northern Engineering, Fairbanks, AK, USA." href="#short-view-affiliation-1" ref="linksrc=author_aff"> 1 </a><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Alaska Stable Isotope Facility, College of Fisheries and Ocean Sciences, Fairbanks, AK, USA." href="#short-view-affiliation-2" ref="linksrc=author_aff"> 2 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Saulnier-Talbot+%C3%89&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Émilie Saulnier-Talbot">Émilie Saulnier-Talbot</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Water and Environmental Research Center, Institute of Northern Engineering, Fairbanks, AK, USA." href="#short-view-affiliation-1" ref="linksrc=author_aff"> 1 </a><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Alaska Stable Isotope Facility, College of Fisheries and Ocean Sciences, Fairbanks, AK, USA." href="#short-view-affiliation-2" ref="linksrc=author_aff"> 2 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Potter+BA&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Ben A Potter">Ben A Potter</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Department of Anthropology, Fairbanks, AK, USA." href="#short-view-affiliation-3" ref="linksrc=author_aff"> 3 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Belmecheri+S&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Soumaya Belmecheri">Soumaya Belmecheri</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Laboratory of Tree Ring Research, University of Arizona, Tucson, AZ, USA." href="#short-view-affiliation-4" ref="linksrc=author_aff"> 4 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Bigelow+N&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Nancy Bigelow">Nancy Bigelow</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Alaska Quaternary Center, University of Alaska Fairbanks, Fairbanks, AK, USA." href="#short-view-affiliation-5" ref="linksrc=author_aff"> 5 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Choy+K&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Kyungcheol Choy">Kyungcheol Choy</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Water and Environmental Research Center, Institute of Northern Engineering, Fairbanks, AK, USA." href="#short-view-affiliation-1" ref="linksrc=author_aff"> 1 </a><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Alaska Stable Isotope Facility, College of Fisheries and Ocean Sciences, Fairbanks, AK, USA." href="#short-view-affiliation-2" ref="linksrc=author_aff"> 2 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Cwynar+LC&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Les C Cwynar">Les C Cwynar</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Department of Biology, University of New Brunswick, Fredericton, New Brunswick, Canada." href="#short-view-affiliation-6" ref="linksrc=author_aff"> 6 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Davies+K&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Kimberley Davies">Kimberley Davies</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Department of Geography and Environment, University of Southampton, Southampton, Hampshire, UK." href="#short-view-affiliation-7" ref="linksrc=author_aff"> 7 </a><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="School of Geography, Earth and Environmental Sciences, Plymouth University, Plymouth, UK." href="#short-view-affiliation-8" ref="linksrc=author_aff"> 8 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Graham+RW&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Russell W Graham">Russell W Graham</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Department of Geosciences and Earth and Mineral Sciences Museum &amp; Art Gallery, The Pennsylvania State University, University Park, PA, USA." href="#short-view-affiliation-9" ref="linksrc=author_aff"> 9 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Kurek+J&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Joshua Kurek">Joshua Kurek</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Department of Geography and Environment, Mount Allison University, Sackville, New Brunswick, Canada." href="#short-view-affiliation-10" ref="linksrc=author_aff"> 10 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Langdon+P&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Peter Langdon">Peter Langdon</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Department of Geography and Environment, University of Southampton, Southampton, Hampshire, UK." href="#short-view-affiliation-7" ref="linksrc=author_aff"> 7 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Medeiros+A&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Andrew Medeiros">Andrew Medeiros</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="York University, Toronto, Canada." href="#short-view-affiliation-11" ref="linksrc=author_aff"> 11 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Rawcliffe+R&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Ruth Rawcliffe">Ruth Rawcliffe</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Water and Environmental Research Center, Institute of Northern Engineering, Fairbanks, AK, USA." href="#short-view-affiliation-1" ref="linksrc=author_aff"> 1 </a><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Alaska Stable Isotope Facility, College of Fisheries and Ocean Sciences, Fairbanks, AK, USA." href="#short-view-affiliation-2" ref="linksrc=author_aff"> 2 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Wang+Y&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="Yue Wang">Yue Wang</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Department of Geography, University of Wisconsin-Madison, Madison, WI, USA." href="#short-view-affiliation-12" ref="linksrc=author_aff"> 12 </a></sup><span class="comma">,&nbsp;</span></span><span class="authors-list-item "><a class="full-name" href="/?term=Williams+JW&amp;cauthor_id=30110451" ref="linksrc=author_name_link" data-ga-category="search" data-ga-action="author_link" data-ga-label="John W Williams">John W Williams</a><sup class="affiliation-links"><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Department of Geography, University of Wisconsin-Madison, Madison, WI, USA." href="#short-view-affiliation-12" ref="linksrc=author_aff"> 12 </a><span class="author-sup-separator">&nbsp;</span><a class="affiliation-link" title="Center for Climatic Research, University of Wisconsin-Madison, Madison, WI, USA." href="#short-view-affiliation-13" ref="linksrc=author_aff"> 13 </a></sup></span> </div> </div> <div class="affiliations"> <h3 class="title"> Affiliations </h3> <ul class="item-list"> <li data-affiliation-id="short-view-affiliation-1" id="short-view-affiliation-1" ><sup class="key">1</sup> Water and Environmental Research Center, Institute of Northern Engineering, Fairbanks, AK, USA.</li> <li data-affiliation-id="short-view-affiliation-2" id="short-view-affiliation-2" ><sup class="key">2</sup> Alaska Stable Isotope Facility, College of Fisheries and Ocean Sciences, Fairbanks, AK, USA.</li> <li data-affiliation-id="short-view-affiliation-3" id="short-view-affiliation-3" ><sup class="key">3</sup> Department of Anthropology, Fairbanks, AK, USA.</li> <li data-affiliation-id="short-view-affiliation-4" id="short-view-affiliation-4" ><sup class="key">4</sup> Laboratory of Tree Ring Research, University of Arizona, Tucson, AZ, USA.</li> <li data-affiliation-id="short-view-affiliation-5" id="short-view-affiliation-5" ><sup class="key">5</sup> Alaska Quaternary Center, University of Alaska Fairbanks, Fairbanks, AK, USA.</li> <li data-affiliation-id="short-view-affiliation-6" id="short-view-affiliation-6" ><sup class="key">6</sup> Department of Biology, University of New Brunswick, Fredericton, New Brunswick, Canada.</li> <li data-affiliation-id="short-view-affiliation-7" id="short-view-affiliation-7" ><sup class="key">7</sup> Department of Geography and Environment, University of Southampton, Southampton, Hampshire, UK.</li> <li data-affiliation-id="short-view-affiliation-8" id="short-view-affiliation-8" ><sup class="key">8</sup> School of Geography, Earth and Environmental Sciences, Plymouth University, Plymouth, UK.</li> <li data-affiliation-id="short-view-affiliation-9" id="short-view-affiliation-9" ><sup class="key">9</sup> Department of Geosciences and Earth and Mineral Sciences Museum &amp; Art Gallery, The Pennsylvania State University, University Park, PA, USA.</li> <li data-affiliation-id="short-view-affiliation-10" id="short-view-affiliation-10" ><sup class="key">10</sup> Department of Geography and Environment, Mount Allison University, Sackville, New Brunswick, Canada.</li> <li data-affiliation-id="short-view-affiliation-11" id="short-view-affiliation-11" ><sup class="key">11</sup> York University, Toronto, Canada.</li> <li data-affiliation-id="short-view-affiliation-12" id="short-view-affiliation-12" ><sup class="key">12</sup> Department of Geography, University of Wisconsin-Madison, Madison, WI, USA.</li> <li data-affiliation-id="short-view-affiliation-13" id="short-view-affiliation-13" ><sup class="key">13</sup> Center for Climatic Research, University of Wisconsin-Madison, Madison, WI, USA.</li> </ul> </div> </div> <ul class="identifiers" id="short-view-identifiers"> <li> <span class="identifier pubmed"> <span class="id-label"> PMID: </span> <strong class="current-id" title="PubMed ID">30110451</strong> </span> </li> <li> <span class="identifier pmc"> <span class="id-label"> PMCID: </span> <a class="id-link" target="_blank" rel="noopener" ref="linksrc=article_id_link&amp;article_id=PMC6030284&amp;id_type=PMC" href="https://pmc.ncbi.nlm.nih.gov/articles/PMC6030284/" data-ga-category="full_text" data-ga-action="PMCID" > PMC6030284 </a> </span> </li> <li> <span class="identifier doi"> <span class="id-label"> DOI: </span> <a class="id-link" target="_blank" rel="noopener" ref="linksrc=article_id_link&amp;article_id=10.1098/rsos.180145&amp;id_type=DOI" href="https://doi.org/10.1098/rsos.180145" data-ga-category="full_text" data-ga-action="DOI" > 10.1098/rsos.180145 </a> </span> </li> </ul> <div class="in-clipboard-label " hidden> Item in Clipboard </div> </div> </div> </header> <div class="actions-buttons inline"><div class="inner-wrap"><button class="full-text-links-button full-text-links-dialog-trigger" title="Open dialog with full text links" ref="linksrc=full_text_links"> Full text links </button><button class="citation-button citation-dialog-trigger" aria-label="Open dialog with citation text in different styles" data-ga-category="save_share" data-ga-action="cite" data-ga-label="open" data-all-citations-url="/30110451/citations/" data-citation-style="nlm" data-pubmed-format-link="/30110451/export/"><span class="button-label">Cite</span></button><button class="more-actions-button more-actions-dialog-trigger" title="Open dialog with more actions to take" ref="linksrc=more_actions_btn"></button><div class="display-options" data-format-key="format" data-default-format-value="abstract" data-current-format-value="abstract" role="region"><button class="trigger usa-button" title="Change format" data-ga-category="display_options" data-ga-action="display_options_dialog"><span class="button-label">Display options</span></button><div class="dropdown" hidden><div class="title"> Display options </div><div class="content"><div class="format-container"><span class="option-label"> Format </span><select name="format" data-initial-value="abstract" aria-label="Display format" id="inline-actions-display-format"><option value="abstract">Abstract</option><option value="pubmed">PubMed</option><option value="pmid">PMID</option></select></div></div></div></div></div></div> <div class="abstract" id="abstract"> <h2 class="title"> Abstract </h2> <div class="abstract-content selected" id="eng-abstract"> <p> Palaeoenvironmental records from the now-submerged Bering Land Bridge (BLB) covering the Last Glacial Maximum (LGM) to the present are needed to document changing environments and connections with the dispersal of humans into North America. Moreover, terrestrially based records of environmental changes are needed in close proximity to the re-establishment of circulation between Pacific and Atlantic Oceans following the end of the last glaciation to test palaeo-climate models for the high latitudes. We present the first terrestrial temperature and hydrologic reconstructions from the LGM to the present from the BLB's south-central margin. We find that the timing of the earliest unequivocal human dispersals into Alaska, based on archaeological evidence, corresponds with a shift to warmer/wetter conditions on the BLB between 14 700 and 13 500 years ago associated with the early Bølling/Allerød interstadial (BA). These environmental changes could have provided the impetus for eastward human dispersal at that time, from Western or central Beringia after a protracted human population standstill. Our data indicate substantial climate-induced environmental changes on the BLB since the LGM, which would potentially have had significant influences on megafaunal and human biogeography in the region. </p> </div> <p> <strong class="sub-title"> Keywords: </strong> Beringia; chironomids; cladocerans; diatoms; environmental change; stable isotopes. </p> </div> <p class="disclaimer" id="disclaimer"> <a href="/disclaimer/" target="_blank" data-ga-category="literature_resources" data-ga-action="disclaimer_link" data-ga-label="under_abstract">PubMed Disclaimer</a> </p> <div class="conflict-of-interest" id="conflict-of-interest"> <h2 class="title"> Conflict of interest statement </h2> <div class="statement"> <p xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:p1="http://pubmed.gov/pub-one">The authors declare no competing interests.</p> </div> </div> <div class="figures" id="figures"> <h2 class="title"> Figures </h2> <div class="figures-list" id="slides-container" itemscope itemtype="http://schema.org/ImageGallery"> <figure class="figure-item " itemscope itemtype="http://schema.org/ImageObject" itemprop="associatedMedia" data-slide-index="0" data-label-slug="figure-1"> <a class="figure-link" href="https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b40b/6030284/971d4cbca399/rsos180145-g1.jpg" itemprop="contentUrl" aria-describedby="figure-caption-0" role="button" data-image-width="661" data-image-height="389" data-image-alt="Figure 1." data-pmc-id="PMC6030284" data-figure-id="RSOS180145F1"> <img class="figure-thumb" itemprop="thumbnail" id="article-image-0" src="https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b40b/6030284/30a3f938ce3a/rsos180145-g1.gif" alt="Figure 1." /> </a> <meta itemprop="width" itemtype="http://schema.org/ImageObject" content="661"> <meta itemprop="height" itemtype="http://schema.org/ImageObject" content="389"> <div class="figure-caption figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="caption" aria-hidden="true"> <div class="caption-wrap"> <strong class="figure-label"> <p> Figure 1. </p> </strong> <div class="figure-caption-contents"><p> Locations of St. Paul Island,… </p></div> </div> </div> <div class="figure-caption-medium figure-caption-text" aria-hidden="true"> <strong class="figure-label"> <p> Figure 1. </p> </strong> <div class="figure-caption-contents"><p> Locations of St. Paul Island, Alaska and other datasets referred to in the… </p></div> </div> <figcaption id="figure-caption-0" class="figure-caption-full figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="description"> <strong class="figure-label"> Figure 1. </strong> <div class="figure-caption-contents">Locations of St. Paul Island, Alaska and other datasets referred to in the text [–7].</div> </figcaption> </figure> <figure class="figure-item " itemscope itemtype="http://schema.org/ImageObject" itemprop="associatedMedia" data-slide-index="1" data-label-slug="figure-2"> <a class="figure-link" href="https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b40b/6030284/a0f2b6303841/rsos180145-g2.jpg" itemprop="contentUrl" aria-describedby="figure-caption-1" role="button" data-image-width="664" data-image-height="833" data-image-alt="Figure 2." data-pmc-id="PMC6030284" data-figure-id="RSOS180145F2"> <img class="figure-thumb" itemprop="thumbnail" id="article-image-1" src="https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b40b/6030284/9cf82aa8d61b/rsos180145-g2.gif" alt="Figure 2." /> </a> <meta itemprop="width" itemtype="http://schema.org/ImageObject" content="664"> <meta itemprop="height" itemtype="http://schema.org/ImageObject" content="833"> <div class="figure-caption figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="caption" aria-hidden="true"> <div class="caption-wrap"> <strong class="figure-label"> <p> Figure 2. </p> </strong> <div class="figure-caption-contents"><p> Palaeoenvironmental proxy data from St.… </p></div> </div> </div> <div class="figure-caption-medium figure-caption-text" aria-hidden="true"> <strong class="figure-label"> <p> Figure 2. </p> </strong> <div class="figure-caption-contents"><p> Palaeoenvironmental proxy data from St. Paul Island, Alaska and the vicinity referred to… </p></div> </div> <figcaption id="figure-caption-1" class="figure-caption-full figure-caption-text" itemtype="http://schema.org/ImageObject" itemprop="description"> <strong class="figure-label"> Figure 2. </strong> <div class="figure-caption-contents">Palaeoenvironmental proxy data from St. Paul Island, Alaska and the vicinity referred to in the main text (sea ice presence = [5,6], Bering Strait opens = [8,39], (<i>a</i>) change in BLB surface area [40]; (<i>b</i>) archaeological dates for Alaska between 16 000 and 9000 years ago; (<i>c</i>) frequency of calibrated radiocarbon ages moose (+, break in frequency scale up to 17 at this point) and horse for interior Alaska (see electronic supplementary material,); (<i>d</i>) magnetic susceptibility of Lake Hill sediments; (<i>e</i>) alkenone temperature in the N. Pacific; (<i>f</i>–<i>j</i>) from Lake Hill, respectively = chironomid-inferred July temperature, planktonic diatoms % of assemblage, cladoceran data, oxygen isotope analyses of chironomid head capsules, <i>Equisetum</i> spore accumulation rates. No cladocerans or chironomids were evident during the YD in the St. Paul core and only trace amounts of freshwater diatoms (see main text for explanation). (Note the reversed scale for δ<sup>18</sup>O values.)</div> </figcaption> </figure> </div> <!-- Root element of PhotoSwipe. Must have class pswp. --> <div class="pswp figures-dialog" id="figures-dialog" tabindex="-1" role="dialog" aria-hidden="true" data-image-gallery-uid="article-figures" aria-label="Figures Dialog"> <!-- Background of PhotoSwipe. It's a separate element as animating opacity is faster than rgba(). --> <div class="pswp__bg"></div> <!-- Slides wrapper with overflow:hidden. --> <div class="pswp__scroll-wrap"> <!-- Container that holds slides. 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