{"id":2819,"date":"2021-11-06T17:08:42","date_gmt":"2021-11-06T09:08:42","guid":{"rendered":"http:\/\/seminar.xtbg.ac.cn\/?p=2819"},"modified":"2021-11-14T17:41:23","modified_gmt":"2021-11-14T09:41:23","slug":"spatio-temporal-climate-change-contributes-to-latitudinal-diversity-gradients","status":"publish","type":"post","link":"http:\/\/seminar.xtbg.ac.cn\/?p=2819","title":{"rendered":"Spatio-temporal climate change contributes to latitudinal diversity gradients"},"content":{"rendered":"\n<h2>Abstract:<\/h2>\n\n\n\n<p>The latitudinal diversity gradient (LDG), where the number of species increases from the poles to the Equator, ranks among the broadest and most notable biodiversity patterns on Earth. The pattern of species-rich tropics relative to species-poor temperate areas has been recognized for well over a century, but the generative mechanisms are still debated vigorously. We use simulations to test whether spatio-temporal climatic changes could generate large-scale patterns of biodiversity as a function of only three biological processes\u2014speciation, extinction and dispersal\u2014omitting adaptive niche evolution, diversity-dependence and coexistence limits. In our simulations, speciation resulted from range disjunctions, whereas extinction occurred when no suitable sites were accessible to species. Simulations generated clear LDGs that closely match empirical LDGs for three major vertebrate groups. Higher tropical diversity primarily resulted from higher low-latitude speciation, driven by spatio-temporal variation in precipitation rather than in temperature. This suggests that spatio-temporal changes in low-latitude precipitation prompted geographical range disjunctions over Earth\u2019s history, leading to high rates of allopatric speciation that contributed to LDGs. Overall, we show that major global biodiversity patterns can derive from interactions of species\u2019 niches (fixed a priori in our simulations) with dynamic climate across complex, existing landscapes, without invoking biotic interactions or niche-related adaptations.<\/p>\n\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n<p><strong>Speaker: <\/strong>Dr. Huijie Qiao<\/p>\n<p><strong>Affiliation: <\/strong>Institute of Zoology, CAS<\/p>\n<p><strong>Time:<\/strong> Nov.<span lang=\"EN-US\"> 9, 2021<\/span><\/p>\n<p><strong>Venue: <\/strong>\u77a9\u76ee\u4f1a\u8bae\u5e73\u53f0 \u4f1a\u8bae ID\uff1a135 871 8714 \u00a0\u4f1a\u8bae\u5bc6\u7801 PWD\uff1a666666\u00a0<\/p>\n<p>\u89c6\u9891\u4e0b\u8f7dDownload Link\u94fe\u63a5: https:\/\/pan.baidu.com\/s\/1ir9dUWOYdOkLnP06oGRLhA\u00a0 \u00a0Pwd\u63d0\u53d6\u7801: 4njq<\/p>\n<p>\u77a9\u76eeZHUMU <br \/>\u4f1a\u8bae ID\uff1a135 871 8714 <br \/>\u4f1a\u8bae\u5bc6\u7801 PWD\uff1a666666<br \/>\u56fd\u5185\u7528\u6237\u4e0b\u8f7d\u5730\u5740Download address for domestic users\uff1ahttps:\/\/zhumu.com\/download<br \/>\u56fd\u9645\u7528\u6237\u4e0b\u8f7d\u5730\u5740Download address for international users\uff1ahttps:\/\/zhumu.com\/download-intl<\/p>\n\n\n<hr class=\"wp-block-separator is-style-wide\"\/>\n\n\n\n<div class=\"wp-container-1 wp-block-group\"><div class=\"wp-block-group__inner-container\">\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Speaker: Dr. Huijie Qiao<br \/>\nAffiliation: Institute of Zoology, CAS<br \/>\nTime: Nov. 9, 2021<\/p>\n","protected":false},"author":2,"featured_media":2820,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3],"tags":[],"_links":{"self":[{"href":"http:\/\/seminar.xtbg.ac.cn\/index.php?rest_route=\/wp\/v2\/posts\/2819"}],"collection":[{"href":"http:\/\/seminar.xtbg.ac.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/seminar.xtbg.ac.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/seminar.xtbg.ac.cn\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/seminar.xtbg.ac.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2819"}],"version-history":[{"count":2,"href":"http:\/\/seminar.xtbg.ac.cn\/index.php?rest_route=\/wp\/v2\/posts\/2819\/revisions"}],"predecessor-version":[{"id":2826,"href":"http:\/\/seminar.xtbg.ac.cn\/index.php?rest_route=\/wp\/v2\/posts\/2819\/revisions\/2826"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/seminar.xtbg.ac.cn\/index.php?rest_route=\/wp\/v2\/media\/2820"}],"wp:attachment":[{"href":"http:\/\/seminar.xtbg.ac.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2819"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/seminar.xtbg.ac.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2819"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/seminar.xtbg.ac.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2819"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}