{"id":44339,"date":"2024-10-23T16:43:12","date_gmt":"2024-10-23T14:43:12","guid":{"rendered":"https:\/\/foretnature.be\/?post_type=article-foret-nature&#038;p=44339"},"modified":"2024-10-23T16:43:12","modified_gmt":"2024-10-23T14:43:12","slug":"le-chevreuil-face-aux-changements-climatiques-une-adaptation-impossible","status":"publish","type":"article-foret-nature","link":"https:\/\/foretnature.be\/en\/article-foret-nature\/le-chevreuil-face-aux-changements-climatiques-une-adaptation-impossible\/","title":{"rendered":"Le chevreuil face aux changements climatiques : une adaptation impossible ?"},"content":{"rendered":"<p>L\u2019un des impacts majeurs des changements climatiques est la d\u00e9synchronisation entre la ph\u00e9nologie des organismes \u00e0 diff\u00e9rents niveaux de la cha\u00eene alimentaire. Si les esp\u00e8ces ne s\u2019adaptent pas, le moment du pic de disponibilit\u00e9 des ressources peut ne pas correspondre au moment du pic des d\u00e9penses \u00e9nerg\u00e9tiques. De nombreuses esp\u00e8ces d&rsquo;oiseaux ont fait preuve d\u2019une grande adaptabilit\u00e9 face aux changements r\u00e9cents en avan\u00e7ant leur date de ponte pour la faire co\u00efncider avec une pr\u00e9cocit\u00e9 printani\u00e8re toujours plus marqu\u00e9e. Chez les mammif\u00e8res, ces questions commencent \u00e9galement \u00e0 \u00eatre \u00e9tudi\u00e9es. Afin de suivre la disponibilit\u00e9 des ressources n\u00e9cessaires au d\u00e9veloppement de leurs populations, les grands herbivores, tels que le chevreuil, devraient \u00e9galement modifier progressivement leur cycle biologique en r\u00e9ponse \u00e0 une apparition plus pr\u00e9coce de la v\u00e9g\u00e9tation. Des chercheurs fran\u00e7ais se sont int\u00e9ress\u00e9s \u00e0 cette probl\u00e9matique. Malgr\u00e9 des changements climatiques av\u00e9r\u00e9s, ils n&rsquo;ont observ\u00e9 aucune modification du calendrier des dates de naissance des chevreuils sur la p\u00e9riode des vingt-sept ann\u00e9es de l\u2019\u00e9tude. Cette incapacit\u00e9 \u00e0 s\u2019adapter aux modifications de l&rsquo;environnement a donn\u00e9 lieu \u00e0 une inad\u00e9quation entre l\u2019alimentation des m\u00e8res et la date de naissance de leurs petits, qui \u00e0 son tour, a provoqu\u00e9 une diminution de la survie des jeunes et une r\u00e9duction de la sant\u00e9 des chevreuils. Les auteurs de l\u2019article sugg\u00e8rent que l\u2019adaptation de la p\u00e9riode de naissance chez le chevreuil n&rsquo;a pas eu lieu parce que, pour cette esp\u00e8ce, la reproduction est d\u00e9clench\u00e9e par la longueur du jour plut\u00f4t que par la disponibilit\u00e9 des ressources. [D.A.]<\/p>","protected":false},"excerpt":{"rendered":"<p>L\u2019un des impacts majeurs des changements climatiques est la d\u00e9synchronisation entre la ph\u00e9nologie des organismes \u00e0 diff\u00e9rents niveaux de la cha\u00eene alimentaire. Si les esp\u00e8ces ne s\u2019adaptent pas, le moment du pic de disponibilit\u00e9 des ressources peut ne pas correspondre au moment du pic des d\u00e9penses \u00e9nerg\u00e9tiques. De nombreuses esp\u00e8ces d&rsquo;oiseaux ont fait preuve d\u2019une [&hellip;]<\/p>","protected":false},"featured_media":0,"template":"","categories":[49],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Le chevreuil face aux changements climatiques : une adaptation impossible ? - For\u00eat.Nature<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/foretnature.be\/en\/article-foret-nature\/le-chevreuil-face-aux-changements-climatiques-une-adaptation-impossible\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Le chevreuil face aux changements climatiques : une adaptation impossible ? - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"L\u2019un des impacts majeurs des changements climatiques est la d\u00e9synchronisation entre la ph\u00e9nologie des organismes \u00e0 diff\u00e9rents niveaux de la cha\u00eene alimentaire. 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