{"id":9822,"date":"2025-12-17T16:30:26","date_gmt":"2025-12-17T15:30:26","guid":{"rendered":"https:\/\/www.imbe.fr\/?p=9822"},"modified":"2025-12-17T16:30:26","modified_gmt":"2025-12-17T15:30:26","slug":"lespece-incertaine-et-les-taxons-flous","status":"publish","type":"post","link":"https:\/\/www.imbe.fr\/fr\/lespece-incertaine-et-les-taxons-flous\/","title":{"rendered":"L\u2019esp\u00e8ce incertaine et les taxons flous"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"9822\" class=\"elementor elementor-9822\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5176a2e e-flex e-con-boxed e-con e-parent\" data-id=\"5176a2e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-0d0e5ac e-con-full e-flex e-con e-child\" data-id=\"0d0e5ac\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4621f6f elementor-widget elementor-widget-spacer\" data-id=\"4621f6f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a003ce2 elementor-widget elementor-widget-text-editor\" data-id=\"a003ce2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div dir=\"ltr\" data-canvas-width=\"286.64\" data-font-name=\"g_font_150_0\" data-angle=\"0\"><strong>L\u2019esp\u00e8ce incertaine et les taxons flous<\/strong><\/div><div dir=\"ltr\" data-canvas-width=\"286.64\" data-font-name=\"g_font_150_0\" data-angle=\"0\">\u00a0<\/div><p>La \u00ab bonne \u00bb d\u00e9finition de l\u2019esp\u00e8ce est r\u00e9guli\u00e8rement remise en question par les progr\u00e8s des connaissances sur l\u2019\u00e9volution et la sp\u00e9ciation. Cette question est loin d\u2019\u00eatre r\u00e9solue parce que la sp\u00e9ciation est \u00e0 l\u2019\u0153uvre dans la biodiversit\u00e9 actuelle et que les taxons de rang sp\u00e9cifique ne sont donc pas des esp\u00e8ces certaines, mais plut\u00f4t des hypoth\u00e8ses d\u2019esp\u00e8ces qui doivent \u00eatre test\u00e9es. Darwin mettait d\u00e9j\u00e0 l\u2019accent sur l\u2019importance des \u00ab esp\u00e8ces douteuses \u00bb pour son argumentation sur la variation. Nous<br \/>illustrons cette propri\u00e9t\u00e9 du vivant \u00e0 r\u00e9sister \u00e0 la classification par l\u2019exemple des taxons flous. Ceux-ci peuvent \u00eatre r\u00e9sum\u00e9s en deux grands types, le syngam\u00e9on et les esp\u00e8ces naissantes. La fr\u00e9quence des flux de g\u00e8nes entre taxons de rang sp\u00e9cifique, et le r\u00f4le \u00e9cologique et \u00e9volutif de l\u2019introgression, montrent que l\u2019esp\u00e8ce incertaine constitue un aspect majeur des probl\u00e9matiques de la biodiversit\u00e9.<\/p><p>\ud83d\udd2c <a href=\"https:\/\/sciencepress.mnhn.fr\/sites\/default\/files\/articles\/pdf\/naturae2025a15.pdf\" target=\"_blank\" rel=\"noopener\"><strong data-start=\"1241\" data-end=\"1311\">\u00c0 d\u00e9couvrir absolument pour mieux saisir la complexit\u00e9 du vivant !<\/strong><\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4758375 e-con-full e-flex e-con e-child\" data-id=\"4758375\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ba434c5 elementor-widget elementor-widget-image\" data-id=\"ba434c5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"593\" height=\"805\" src=\"https:\/\/www.imbe.fr\/wp-content\/uploads\/2025\/12\/naturae-2025.jpg\" class=\"attachment-large size-large wp-image-9823\" alt=\"\" srcset=\"https:\/\/www.imbe.fr\/wp-content\/uploads\/2025\/12\/naturae-2025.jpg 593w, https:\/\/www.imbe.fr\/wp-content\/uploads\/2025\/12\/naturae-2025-221x300.jpg 221w, https:\/\/www.imbe.fr\/wp-content\/uploads\/2025\/12\/naturae-2025-9x12.jpg 9w\" sizes=\"(max-width: 593px) 100vw, 593px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>L\u2019esp\u00e8ce incertaine et les taxons flous La \u00ab bonne \u00bb d\u00e9finition de l\u2019esp\u00e8ce est r\u00e9guli\u00e8rement remise en question par les progr\u00e8s des connaissances sur l\u2019\u00e9volution et la sp\u00e9ciation. Cette question [&hellip;]<\/p>\n","protected":false},"author":300,"featured_media":9823,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-9822","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-publication"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.imbe.fr\/fr\/wp-json\/wp\/v2\/posts\/9822","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.imbe.fr\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.imbe.fr\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.imbe.fr\/fr\/wp-json\/wp\/v2\/users\/300"}],"replies":[{"embeddable":true,"href":"https:\/\/www.imbe.fr\/fr\/wp-json\/wp\/v2\/comments?post=9822"}],"version-history":[{"count":11,"href":"https:\/\/www.imbe.fr\/fr\/wp-json\/wp\/v2\/posts\/9822\/revisions"}],"predecessor-version":[{"id":9838,"href":"https:\/\/www.imbe.fr\/fr\/wp-json\/wp\/v2\/posts\/9822\/revisions\/9838"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.imbe.fr\/fr\/wp-json\/wp\/v2\/media\/9823"}],"wp:attachment":[{"href":"https:\/\/www.imbe.fr\/fr\/wp-json\/wp\/v2\/media?parent=9822"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.imbe.fr\/fr\/wp-json\/wp\/v2\/categories?post=9822"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.imbe.fr\/fr\/wp-json\/wp\/v2\/tags?post=9822"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}