{"id":6204,"date":"2026-03-05T13:27:07","date_gmt":"2026-03-05T13:27:07","guid":{"rendered":"https:\/\/infos-media-nantes.fr\/?p=6204"},"modified":"2026-03-05T13:27:09","modified_gmt":"2026-03-05T13:27:09","slug":"passages-faune-loutres-carquefou-nantes-metropole","status":"publish","type":"post","link":"https:\/\/infos-media-nantes.fr\/passages-faune-loutres-carquefou-nantes-metropole\/","title":{"rendered":"Carquefou : de nouveaux passages pour prot\u00e9ger les loutres des collisions routi\u00e8res"},"content":{"rendered":"\n<article>\n\n<p>Depuis deux ans, <strong>Nantes M\u00e9tropole<\/strong> m\u00e8ne sur le territoire de <strong>Carquefou (Loire-Atlantique)<\/strong> plusieurs am\u00e9nagements pour favoriser la circulation de la faune sauvage. Ces actions s\u2019inscrivent dans une d\u00e9marche visant \u00e0 pr\u00e9server les milieux naturels et \u00e0 am\u00e9liorer la cohabitation entre les infrastructures humaines et les \u00e9cosyst\u00e8mes.<\/p>\n\n<p>Fruit d\u2019un travail concert\u00e9 avec l\u2019association <strong>Groupe mammalogique breton<\/strong>, sp\u00e9cialis\u00e9e dans l\u2019\u00e9tude des mammif\u00e8res, plusieurs pi\u00e8ges photographiques ont \u00e9t\u00e9 install\u00e9s sous des ponts identifi\u00e9s comme accidentog\u00e8nes. Ces ouvrages ont ensuite fait l\u2019objet d\u2019am\u00e9nagements de passerelles sur diff\u00e9rents secteurs de la commune.<\/p>\n\n<h2>Des am\u00e9nagements pour prot\u00e9ger la loutre d\u2019Europe<\/h2>\n\n<p>L\u2019objectif est d\u2019observer les d\u00e9placements des mammif\u00e8res et plus particuli\u00e8rement ceux de la <strong>loutre d\u2019Europe<\/strong>, une esp\u00e8ce majoritairement nocturne pr\u00e9sente sur le territoire de Carquefou.<\/p>\n\n<p>Les <strong>collisions routi\u00e8res<\/strong> repr\u00e9sentent aujourd\u2019hui la principale menace pour cette esp\u00e8ce prot\u00e9g\u00e9e. La cr\u00e9ation de passages sp\u00e9cifiques vise donc \u00e0 permettre aux animaux de circuler en toute s\u00e9curit\u00e9 et \u00e0 recr\u00e9er des continuit\u00e9s \u00e9cologiques le long des cours d\u2019eau.<\/p>\n\n<p>Ces am\u00e9nagements permettent \u00e9galement d\u2019<strong\u2019agrandir le territoire de vie de la loutre<\/strong> et de faciliter la recolonisation des cours d\u2019eau de Loire-Atlantique.<\/p>\n\n<h2>Des pi\u00e8ges photo pour observer la faune sauvage<\/h2>\n\n<p>Pour mesurer l\u2019efficacit\u00e9 des dispositifs, des pi\u00e8ges photographiques ont \u00e9t\u00e9 install\u00e9s \u00e0 proximit\u00e9 des passages \u00e0 faune. Les images recueillies permettent de v\u00e9rifier leur utilisation par diff\u00e9rentes esp\u00e8ces.<\/p>\n\n<p>Ces donn\u00e9es alimentent \u00e9galement l\u2019<strong>Observatoire de la biodiversit\u00e9 m\u00e9tropolitaine<\/strong>, un outil accessible au grand public qui permet de suivre l\u2019\u00e9volution de la faune sur le territoire.<\/p>\n\n<p>\n<a href=\"https:\/\/observatoire-biodiversite.nantesmetropole.fr\/\" target=\"_blank\" style=\"color:#5532F0;text-decoration:underline;font-weight:bold;\">\nAcc\u00e9der \u00e0 l\u2019Observatoire de la biodiversit\u00e9 m\u00e9tropolitaine\n<\/a>\n<\/p>\n\n<h2>Une huiti\u00e8me passerelle am\u00e9nag\u00e9e fin 2025<\/h2>\n\n<p>Plusieurs passages \u00e0 faune ont ainsi \u00e9t\u00e9 am\u00e9nag\u00e9s au fil des travaux. Fin <strong>2025<\/strong>, une <strong>huiti\u00e8me passerelle<\/strong> a notamment \u00e9t\u00e9 install\u00e9e \u00e0 l\u2019entr\u00e9e du village de la <strong>Savaudi\u00e8re<\/strong>.<\/p>\n\n<p>\u00ab Cet ouvrage permet de s\u00e9curiser les d\u00e9placements des animaux, tout en recr\u00e9ant une continuit\u00e9 \u00e9cologique le long du cours d\u2019eau \u00bb, souligne un technicien de Nantes M\u00e9tropole.<\/p>\n\n<p>Les images recueillies par les pi\u00e8ges photo confirment d\u00e9j\u00e0 l\u2019appropriation de certains passages par diff\u00e9rents mammif\u00e8res pr\u00e9sents sur le territoire.<\/p>\n\n<h2>Restauration du ruisseau du Housseau<\/h2>\n\n<p>En parall\u00e8le de ces am\u00e9nagements, la restauration d\u2019une portion du <strong>ruisseau du Housseau<\/strong>, \u00e9galement appel\u00e9 <strong>ruisseau de l\u2019\u00c9tang Blanc<\/strong>, a permis de lui redonner ses m\u00e9andres naturels et de reconnecter le cours d\u2019eau avec ses zones humides.<\/p>\n\n<p>De nouveaux travaux de restauration sont programm\u00e9s <strong>en 2026<\/strong> plus en amont du ruisseau afin de poursuivre cette dynamique de renaturation.<\/p>\n\n<p>Les vid\u00e9os de captation r\u00e9alis\u00e9es sur la commune sont \u00e9galement visibles \u00e0 la <strong>Maison des Projets<\/strong>, situ\u00e9e <strong>9 rue des Halles \u00e0 Carquefou<\/strong>.<\/p>\n\n<p>\n<a href=\"https:\/\/infos-media-nantes.fr\/observatoire-biodiversite-metropolitaine-nantes\/\" target=\"_blank\" style=\"color:#5532F0;text-decoration:underline;font-weight:bold;\">\nLire aussi : l\u2019Observatoire de la biodiversit\u00e9 m\u00e9tropolitaine \u00e0 Nantes\n<\/a>\n<\/p>\n\n\n<!-- ============================================================\n     MINI-JEU OFFICIEL IMN \u2014 MEMORY N\u00c9ON 6\u00d76 (LOUTRES & BIODIVERSIT\u00c9)\n============================================================ -->\n\n<section id=\"imn-memneo-loutres\" class=\"imn-memneo\">\n  <div 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Ces actions s\u2019inscrivent dans une d\u00e9marche visant \u00e0 pr\u00e9server les milieux naturels et \u00e0 am\u00e9liorer la cohabitation entre les infrastructures humaines et les \u00e9cosyst\u00e8mes. Fruit d\u2019un travail concert\u00e9 avec l\u2019association Groupe mammalogique breton, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":6205,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"categories":[22],"tags":[78,769,67,162,4488,7,4486,175,4490,4487,4489],"class_list":["post-6204","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites-nantes","tag-biodiversite","tag-carquefou","tag-ecologie","tag-environnement","tag-faune-sauvage","tag-loire-atlantique","tag-loutre-deurope","tag-nantes-metropole","tag-observatoire-biodiversite-nantes","tag-passages-a-faune","tag-ruisseau-du-housseau"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Carquefou : de nouveaux passages pour prot\u00e9ger les loutres des collisions routi\u00e8res - 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