{"id":34250,"date":"2021-09-10T11:45:08","date_gmt":"2021-09-10T09:45:08","guid":{"rendered":"https:\/\/foretnature.be\/resume-foret-mail\/la-reintroduction-du-castor-et-son-impact-sur-la-biodiversite\/"},"modified":"2021-09-10T11:45:08","modified_gmt":"2021-09-10T09:45:08","slug":"la-reintroduction-du-castor-et-son-impact-sur-la-biodiversite","status":"publish","type":"resume-foret-mail","link":"https:\/\/foretnature.be\/en\/resume-foret-mail\/la-reintroduction-du-castor-et-son-impact-sur-la-biodiversite\/","title":{"rendered":"La r\u00e9introduction du castor et son impact sur la biodiversit\u00e9"},"content":{"rendered":"

Cette recherche bibliographique avait pour but d\u2019\u00e9valuer les impacts positifs et n\u00e9gatifs des castors sur la biodiversit\u00e9, dans l\u2019optique d\u2019une r\u00e9introduction de l\u2019esp\u00e8ce en \u00c9cosse.
\nCes v\u00e9ritables \u00ab ing\u00e9nieurs d\u2019\u00e9cosyst\u00e8mes\u00a0\u00bb, par leurs travaux d\u2019abattages et leur construction de barrages, augmentent l\u2019h\u00e9t\u00e9rog\u00e9n\u00e9it\u00e9 des habitats qu\u2019ils fr\u00e9quentent, ce qui a g\u00e9n\u00e9ralement un impact positif sur la biodiversit\u00e9. Ainsi, la pr\u00e9sence de castors dans un milieu engendre la cr\u00e9ation de nouvelles zones inond\u00e9es, qui modifient la structure des rivi\u00e8res et la chimie de l\u2019eau, et font mourir certains arbres sur pied. Plus tard, des marais peuvent \u00e9galement succ\u00e9der aux retenues d\u2019eau cr\u00e9\u00e9es.
\nAutant de nouveaux habitats pour la faune et la flore. Par exemple, les barrages de castors accueilleraient une grande diversit\u00e9 d\u2019invert\u00e9br\u00e9s ce qui, en cons\u00e9quence, est b\u00e9n\u00e9fique aux esp\u00e8ces qui en d\u00e9pendent, tels les amphibiens, les oiseaux ou les poissons. En revanche, les perturbations du milieu apport\u00e9es par les castors peuvent aussi avoir des impacts n\u00e9gatifs. Elles peuvent diminuer l\u2019\u00e9tendue des for\u00eats anciennes pr\u00e9sentes le long des cours d\u2019eau ou provoquer leur rajeunissement, surtout si la pression du gibier est forte, emp\u00eachant la bonne r\u00e9g\u00e9n\u00e9ration des for\u00eats. Les esp\u00e8ces d\u00e9pendant de milieux lotiques (eaux courantes) peuvent aussi \u00eatre impact\u00e9es n\u00e9gativement par l\u2019arriv\u00e9e de castors.
\nPlusieurs facteurs sont donc \u00e0 prendre en consid\u00e9ration et un plan de gestion adapt\u00e9 est primordial en cas de r\u00e9introduction de l\u2019esp\u00e8ce.
\nStringer A.\u00a0P., Gaywood M.\u00a0J. (2016). The impacts of beavers Castor ssp. on biodiversity and the ecological basis for their reintroduction to Scotland, UK. Mammal Review 46. DOI:10.1111\/mam.12068<\/p>","protected":false},"excerpt":{"rendered":"

Cette recherche bibliographique avait pour but d\u2019\u00e9valuer les impacts positifs et n\u00e9gatifs des castors sur la biodiversit\u00e9, dans l\u2019optique d\u2019une r\u00e9introduction de l\u2019esp\u00e8ce en \u00c9cosse. Ces v\u00e9ritables \u00ab ing\u00e9nieurs d\u2019\u00e9cosyst\u00e8mes\u00a0\u00bb, par leurs travaux d\u2019abattages et leur construction de barrages, augmentent l\u2019h\u00e9t\u00e9rog\u00e9n\u00e9it\u00e9 des habitats qu\u2019ils fr\u00e9quentent, ce qui a g\u00e9n\u00e9ralement un impact positif sur la biodiversit\u00e9. […]<\/p>","protected":false},"featured_media":0,"template":"","categories":[50],"acf":[],"yoast_head":"\nLa r\u00e9introduction du castor et son impact sur la biodiversit\u00e9 - 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\/la-reintroduction-du-castor-et-son-impact-sur-la-biodiversite\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"La r\u00e9introduction du castor et son impact sur la biodiversit\u00e9 - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"Cette recherche bibliographique avait pour but d\u2019\u00e9valuer les impacts positifs et n\u00e9gatifs des castors sur la biodiversit\u00e9, dans l\u2019optique d\u2019une r\u00e9introduction de l\u2019esp\u00e8ce en \u00c9cosse. Ces v\u00e9ritables \u00ab ing\u00e9nieurs d\u2019\u00e9cosyst\u00e8mes\u00a0\u00bb, par leurs travaux d\u2019abattages et leur construction de barrages, augmentent l\u2019h\u00e9t\u00e9rog\u00e9n\u00e9it\u00e9 des habitats qu\u2019ils fr\u00e9quentent, ce qui a g\u00e9n\u00e9ralement un impact positif sur la biodiversit\u00e9. 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Ces v\u00e9ritables \u00ab ing\u00e9nieurs d\u2019\u00e9cosyst\u00e8mes\u00a0\u00bb, par leurs travaux d\u2019abattages et leur construction de barrages, augmentent l\u2019h\u00e9t\u00e9rog\u00e9n\u00e9it\u00e9 des habitats qu\u2019ils fr\u00e9quentent, ce qui a g\u00e9n\u00e9ralement un impact positif sur la biodiversit\u00e9. 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