{"id":10053,"date":"2026-01-29T17:42:40","date_gmt":"2026-01-29T16:42:40","guid":{"rendered":"https:\/\/www.imbe.fr\/?p=10053"},"modified":"2026-02-03T19:10:59","modified_gmt":"2026-02-03T18:10:59","slug":"fous-de-bassan-et-grippe-aviaire-des-survivants-resilients","status":"publish","type":"post","link":"https:\/\/www.imbe.fr\/fr\/fous-de-bassan-et-grippe-aviaire-des-survivants-resilients\/","title":{"rendered":"Fous de Bassan et grippe aviaire : des survivants r\u00e9silients"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"10053\" class=\"elementor elementor-10053\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ac05eb1 e-grid e-con-boxed e-con e-parent\" data-id=\"ac05eb1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-de3f70b elementor-widget elementor-widget-image\" data-id=\"de3f70b\" 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=\"751\" height=\"249\" src=\"https:\/\/www.imbe.fr\/wp-content\/uploads\/2026\/01\/Aurore.jpg\" class=\"attachment-large size-large wp-image-10154\" alt=\"\" srcset=\"https:\/\/www.imbe.fr\/wp-content\/uploads\/2026\/01\/Aurore.jpg 751w, https:\/\/www.imbe.fr\/wp-content\/uploads\/2026\/01\/Aurore-300x99.jpg 300w, https:\/\/www.imbe.fr\/wp-content\/uploads\/2026\/01\/Aurore-18x6.jpg 18w\" sizes=\"(max-width: 751px) 100vw, 751px\" \/>\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 class=\"elementor-element elementor-element-2a0753b elementor-widget elementor-widget-text-editor\" data-id=\"2a0753b\" 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<p data-start=\"154\" data-end=\"472\">Le <strong data-start=\"157\" data-end=\"216\">virus de l\u2019influenza aviaire hautement pathog\u00e8ne (IAHP)<\/strong> a entra\u00een\u00e9 en 2022 une forte mortalit\u00e9 chez les <strong data-start=\"265\" data-end=\"283\">fous de Bassan<\/strong> de la colonie de Rouzic (France), avec un d\u00e9clin de <strong data-start=\"336\" data-end=\"344\">38 %<\/strong> de la population reproductrice. Parmi les survivants, <strong data-start=\"399\" data-end=\"409\">22,3 %<\/strong> pr\u00e9sentaient des yeux noircis (figure c ci-dessus), signe d\u2019une infection pass\u00e9e.<\/p><p data-start=\"474\" data-end=\"962\"><a href=\"https:\/\/www.imbe.fr\/wp-content\/uploads\/2026\/01\/Ponchon-et-al-BiolCons-2026-No-impact-of-black-eye-symptom-on-Northern-gannets-1.pdf\">Cet article<\/a> de <a href=\"https:\/\/www.imbe.fr\/fr\/annuaire\/aurore-ponchon\/\">Aurore Ponchon<\/a> et collaborateurs, publi\u00e9 dans <em><span class=\"journal text-small\">Biological Conservation<\/span><\/em>, montre que ces individus ne pr\u00e9sentent pas de diff\u00e9rences notables dans leur comportement d\u2019alimentation. En revanche, la diminution du nombre d\u2019oiseaux s\u2019accompagne d\u2019un effort de recherche alimentaire r\u00e9duit et d\u2019un succ\u00e8s reproducteur accru, conform\u00e9ment \u00e0 l\u2019hypoth\u00e8se du halo d\u2019Ashmole : lorsque les colonies sont moins denses, la comp\u00e9tition pour la nourriture autour du site de reproduction diminue, permettant aux oiseaux de se nourrir plus pr\u00e8s et plus efficacement.<\/p><p data-start=\"964\" data-end=\"1157\">Ces r\u00e9sultats soulignent l\u2019importance des m\u00e9canismes d\u00e9pendants de la densit\u00e9 apr\u00e8s des mortalit\u00e9s massives, tout en alertant sur les risques \u00e0 long terme pour des populations d\u00e9j\u00e0 fragilis\u00e9es.<\/p>\t\t\t\t\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>Le virus de l\u2019influenza aviaire hautement pathog\u00e8ne (IAHP) a entra\u00een\u00e9 en 2022 une forte mortalit\u00e9 chez les fous de Bassan de la colonie de Rouzic (France), avec un d\u00e9clin de [&hellip;]<\/p>\n","protected":false},"author":300,"featured_media":10154,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-10053","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\/10053","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=10053"}],"version-history":[{"count":12,"href":"https:\/\/www.imbe.fr\/fr\/wp-json\/wp\/v2\/posts\/10053\/revisions"}],"predecessor-version":[{"id":10159,"href":"https:\/\/www.imbe.fr\/fr\/wp-json\/wp\/v2\/posts\/10053\/revisions\/10159"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.imbe.fr\/fr\/wp-json\/wp\/v2\/media\/10154"}],"wp:attachment":[{"href":"https:\/\/www.imbe.fr\/fr\/wp-json\/wp\/v2\/media?parent=10053"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.imbe.fr\/fr\/wp-json\/wp\/v2\/categories?post=10053"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.imbe.fr\/fr\/wp-json\/wp\/v2\/tags?post=10053"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}