{"id":34330,"date":"2021-09-10T11:45:22","date_gmt":"2021-09-10T09:45:22","guid":{"rendered":"https:\/\/foretnature.be\/resume-foret-mail\/ameliorer-les-passages-a-faune-pour-les-micromammiferes\/"},"modified":"2021-09-10T11:45:22","modified_gmt":"2021-09-10T09:45:22","slug":"ameliorer-les-passages-a-faune-pour-les-micromammiferes","status":"publish","type":"resume-foret-mail","link":"https:\/\/foretnature.be\/en\/resume-foret-mail\/ameliorer-les-passages-a-faune-pour-les-micromammiferes\/","title":{"rendered":"Am\u00e9liorer les passages \u00e0 faune pour les micromammif\u00e8res"},"content":{"rendered":"

L\u2019ajout d\u2019un sous-tunnel, ici un tube PVC de 10 cm de diam\u00e8tre, permet le passage des micromammif\u00e8res dans des ouvrages de grande taille. Sans cet am\u00e9nagement, ces ouvrages sont des obstacles difficilement franchissables pour ces esp\u00e8ces.
\nOn sait que les infrastructures lin\u00e9aires de transport, telles que les routes et les autoroutes, cr\u00e9ent des barri\u00e8res qui entravent la circulation des esp\u00e8ces animales et limitent les brassages g\u00e9n\u00e9tiques essentiels au maintien durable des populations. Pour palier ce probl\u00e8me, des passages \u00e0 faune sont construits pour r\u00e9tablir les \u00e9changes d\u2019individus, mais leur efficacit\u00e9 pour les micromammif\u00e8res n\u2019est pas encore connue.
\nUne r\u00e9cente \u00e9tude fran\u00e7aise vient toutefois de montrer qu\u2019une restauration partielle des continuit\u00e9s \u00e9cologiques par les passages \u00e0 faune est possible. L\u2019\u00e9tude s\u2019appuie sur un protocole de capture-marquage-recapture men\u00e9 sur le mulot sylvestre et le campagnol des champs. Aucune travers\u00e9e de route n\u2019a \u00e9t\u00e9 observ\u00e9e hors passage \u00e0 faune.
\nPour am\u00e9liorer l\u2019utilisation des passages \u00e0 faune et augmenter la probabilit\u00e9 de dispersion d\u2019un c\u00f4t\u00e9 \u00e0 l\u2019autre de la route, les chercheurs proposent plusieurs am\u00e9nagements sp\u00e9cifiques aux micromammif\u00e8res : pose d\u2019un sous-tunnel dans le passage (tube en PVC, par exemple), am\u00e9lioration de l\u2019habitat imm\u00e9diat du passage (haie\u2026) et diminution de la distance entre passages (actuellement recommand\u00e9e \u00e0 300 m) pour atteindre 50 m (distance recommand\u00e9e pour les amphibiens \u00e9galement).
\nSes pistes d\u2019am\u00e9lioration des structures devraient assurer la survie \u00e0 long terme des populations.
\nJumeau J. (2018). Utilisation individuelle des passages \u00e0 faune par les micromammif\u00e8res : quel brassage g\u00e9n\u00e9tique en attendre ? Revue Science Eaux & Territoires, article hors-s\u00e9rie, 4 p., 30\/04\/2018.<\/p>","protected":false},"excerpt":{"rendered":"

L\u2019ajout d\u2019un sous-tunnel, ici un tube PVC de 10 cm de diam\u00e8tre, permet le passage des micromammif\u00e8res dans des ouvrages de grande taille. Sans cet am\u00e9nagement, ces ouvrages sont des obstacles difficilement franchissables pour ces esp\u00e8ces. On sait que les infrastructures lin\u00e9aires de transport, telles que les routes et les autoroutes, cr\u00e9ent des barri\u00e8res qui […]<\/p>","protected":false},"featured_media":0,"template":"","categories":[50],"acf":[],"yoast_head":"\nAm\u00e9liorer les passages \u00e0 faune pour les micromammif\u00e8res - 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\/resume-foret-mail\/ameliorer-les-passages-a-faune-pour-les-micromammiferes\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Am\u00e9liorer les passages \u00e0 faune pour les micromammif\u00e8res - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"L\u2019ajout d\u2019un sous-tunnel, ici un tube PVC de 10 cm de diam\u00e8tre, permet le passage des micromammif\u00e8res dans des ouvrages de grande taille. Sans cet am\u00e9nagement, ces ouvrages sont des obstacles difficilement franchissables pour ces esp\u00e8ces. 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