{"id":25473,"date":"2026-04-04T16:15:00","date_gmt":"2026-04-04T14:15:00","guid":{"rendered":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/?p=25473"},"modified":"2026-04-10T13:15:47","modified_gmt":"2026-04-10T11:15:47","slug":"entretien-pour-linstant-le-manchot-royal-sadapte-bien-mais-jusquou-tiendra-t-il","status":"publish","type":"post","link":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/2026\/04\/04\/entretien-pour-linstant-le-manchot-royal-sadapte-bien-mais-jusquou-tiendra-t-il\/","title":{"rendered":"[Entretien] \u00ab Pour l\u2019instant, le manchot royal s\u2019adapte bien. Mais jusqu\u2019o\u00f9 tiendra-t-il&nbsp;?&nbsp;\u00bb"},"content":{"rendered":"<div class=\"paragraph\">\n<p><b>La Marseillaise<\/b><b>\u00a0<\/b><b>:<\/b><b> Dans une \u00e9tude parue dans \u00ab<\/b><b>\u00a0<\/b><b>Science Advances<\/b><b>\u00a0<\/b><b>\u00bb, vous montrez que la date de ponte <br \/>du manchot royal a avanc\u00e9 de 19 jours en 24 ans&#8230;<\/b><\/p>\n<p><b>C\u00e9line Le Bohec<\/b><b>\u00a0<\/b><b>: <\/b>Oui c\u2019est d\u00fb \u00e0 des changements environnementaux induits par le r\u00e9chauffement climatique. C\u2019est \u00e9norme. Il est commun de voir des avancements de ce type \u2013par exemple sur des populations de passereaux en Europe\u2013, mais c\u2019est g\u00e9n\u00e9ralement de l\u2019ordre de trois jours par d\u00e9cennie.<\/p>\n<p><b>Comment se porte le manchot royal ? <\/b><\/p>\n<p><b>C.L.B. :<\/b>Plut\u00f4t bien. Consid\u00e9r\u00e9e comme stable, l\u2019esp\u00e8ce est capable de s\u2019adapter rapidement aux changements environnementaux. Mais jusqu\u2019o\u00f9 cela ira-t-il\u00a0? Nous l\u2019ignorons. D\u2019autant qu\u2019il existe des points de bascule au-del\u00e0 desquels une population peut s\u2019effondrer soudainement.<\/p>\n<p><b>Que disent les projections<\/b><b>\u00a0<\/b><b>? <\/b><\/p>\n<p><b>C.L.B. :<\/b> Pour la population des \u00eeles de Crozet, les mod\u00e8les oc\u00e9anographiques indiquent que des masses d\u2019eau de l\u2019oc\u00e9an Austral \u2013 dont le front polaire, o\u00f9 le manchot va chercher sa nourriture en \u00e9t\u00e9 \u2013 se d\u00e9placent vers le sud. Or il est capital qu\u2019il puisse s\u2019alimenter pr\u00e8s de son lieu de reproduction en \u00e9t\u00e9 pour pouvoir nourrir r\u00e9guli\u00e8rement son poussin de quelques semaines. S\u2019il veut \u00ab\u00a0suivre\u00a0\u00bb ce front polaire, le manchot devra donc trouver des endroits o\u00f9 nicher, sans glace, plus au sud. Seulement, malgr\u00e9 le r\u00e9chauffement, les plateformes de glace seront toujours pr\u00e9sentes autour du continent blanc pour plusieurs d\u00e9cennies car il y a de l\u2019inertie. Donc cela ne tiendra pas. Et la population pourrait perdre pr\u00e8s de 70% de ses effectifs d\u2019ici la fin du si\u00e8cle.<\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"La Marseillaise&nbsp;: Dans une &eacute;tude parue dans &laquo;&nbsp;Science Advances&nbsp;&raquo;, vous montrez que la date de ponte du manchot royal a avanc&eacute; de 19 jours en 24 ans&#8230;C&eacute;line Le Bohec&nbsp;: Oui c&rsquo;est d&ucirc; &#8230;","protected":false},"author":1,"featured_media":25474,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3926,3925,20],"tags":[],"news-destination":[3944],"news-source":[475],"is_homepage":[],"ta_other":[],"class_list":["post-25473","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-accueil-merge","category-accueil-third","category-societe","news-destination-homepage","news-source-website"],"_links":{"self":[{"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/posts\/25473","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/comments?post=25473"}],"version-history":[{"count":1,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/posts\/25473\/revisions"}],"predecessor-version":[{"id":25475,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/posts\/25473\/revisions\/25475"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/media\/25474"}],"wp:attachment":[{"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/media?parent=25473"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/categories?post=25473"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/tags?post=25473"},{"taxonomy":"news-destination","embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/news-destination?post=25473"},{"taxonomy":"news-source","embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/news-source?post=25473"},{"taxonomy":"is_homepage","embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/is_homepage?post=25473"},{"taxonomy":"ta_other","embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/ta_other?post=25473"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}