{"id":34141,"date":"2021-09-10T11:44:50","date_gmt":"2021-09-10T09:44:50","guid":{"rendered":"https:\/\/foretnature.be\/resume-foret-mail\/maximiser-les-bienfaits-du-bois-mort-en-foret\/"},"modified":"2021-09-10T11:44:50","modified_gmt":"2021-09-10T09:44:50","slug":"maximiser-les-bienfaits-du-bois-mort-en-foret","status":"publish","type":"resume-foret-mail","link":"https:\/\/foretnature.be\/en\/resume-foret-mail\/maximiser-les-bienfaits-du-bois-mort-en-foret\/","title":{"rendered":"Maximiser les bienfaits du bois mort en for\u00eat"},"content":{"rendered":"<p>Les modifications du fonctionnement naturel des \u00e9cosyst\u00e8mes menacent la biodiversit\u00e9 \u00e0 travers le monde et plus particuli\u00e8rement la biodiversit\u00e9 foresti\u00e8re. La plupart des strat\u00e9gies visant \u00e0 att\u00e9nuer la perte de diversit\u00e9 favorisent le maintien d\u2019une plus grande quantit\u00e9 de bois mort en for\u00eat, une ressource primordiale pour beaucoup d\u2019esp\u00e8ces de d\u00e9composeurs. Bien que pr\u00e9server plus de bois mort soit devenu une strat\u00e9gie commun\u00e9ment admise, il subsiste des interrogations quant \u00e0 la mani\u00e8re la plus efficace de permettre le red\u00e9ploiement de la diversit\u00e9 des esp\u00e8ces saproxyliques.<br \/>\nDes chercheurs allemands ont \u00e9tudi\u00e9 la diversit\u00e9 de col\u00e9opt\u00e8res saproxyliques sur du bois mort provenant de 13 essences diff\u00e9rentes et \u00e0 travers 30 for\u00eats r\u00e9parties sur 3 r\u00e9gions d\u2019Allemagne. Ils ont test\u00e9 la diversit\u00e9 entre r\u00e9gions pour les diff\u00e9rentes esp\u00e8ces ainsi que la diversit\u00e9 en esp\u00e8ces pour un billon de bois mort selon qu\u2019il est plac\u00e9 dans une h\u00eatraie non g\u00e9r\u00e9e, une h\u00eatraie exploit\u00e9e ou dans une for\u00eat r\u00e9sineuse.<br \/>\nLes chercheurs ont d\u00e9couvert des diff\u00e9rences significatives de diversit\u00e9 pour les diff\u00e9rentes essences test\u00e9es. Qui plus est, le classement des essences accueillant le plus de diversit\u00e9 varie en fonction des r\u00e9gions, ce qui sugg\u00e8re des r\u00e9servoirs d\u2019esp\u00e8ces saproxyliques diff\u00e9rents d\u2019une r\u00e9gion \u00e0 l\u2019autre. La diversit\u00e9 d\u2019esp\u00e8ces saproxyliques augmente avec la diversit\u00e9 des essences de bois mort. Certaines essences, comme le charme, ou certaines combinaisons d\u2019essences (charme et \u00e9pic\u00e9a) permettent la plus grande diversit\u00e9. Les bois morts situ\u00e9s en peuplements r\u00e9sineux ont permis d\u2019atteindre les plus hauts niveaux de diversit\u00e9. Aucune diff\u00e9rence significative n\u2019a \u00e9t\u00e9 r\u00e9v\u00e9l\u00e9e entre les h\u00eatraies g\u00e9r\u00e9es ou non. Enfin, le couvert forestier et la temp\u00e9rature moyenne au sein des peuplements influencent fortement la diversit\u00e9 sp\u00e9cifique. Les conditions environnementales ont donc un impact important.<br \/>\nPour augmenter la diversit\u00e9 des cort\u00e8ges saproxyliques, les chercheurs encouragent donc \u00e0 prendre en compte les essences les plus int\u00e9ressantes afin de maximiser les bienfaits sur l\u2019\u00e9cosyst\u00e8me.<br \/>\nGossner M. M., Wende B., Levick S., Schall P., \u00a0Floren A., Linsenmair K. E., Steffan-Dewenter I., Schulze E.-D., Weisser W. W. (2016). Deadwood enrichment in European forests \u2013 Which tree species should be used to promote saproxylic beetle diversity ? Biological Conservation 201 : 92-102<br \/>\nCr\u00e9dit photo : \u00a9 Licence Creative Commons ; B. Monginoux<\/p>","protected":false},"excerpt":{"rendered":"<p>Les modifications du fonctionnement naturel des \u00e9cosyst\u00e8mes menacent la biodiversit\u00e9 \u00e0 travers le monde et plus particuli\u00e8rement la biodiversit\u00e9 foresti\u00e8re. La plupart des strat\u00e9gies visant \u00e0 att\u00e9nuer la perte de diversit\u00e9 favorisent le maintien d\u2019une plus grande quantit\u00e9 de bois mort en for\u00eat, une ressource primordiale pour beaucoup d\u2019esp\u00e8ces de d\u00e9composeurs. Bien que pr\u00e9server plus [&hellip;]<\/p>","protected":false},"featured_media":0,"template":"","categories":[50],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Maximiser les bienfaits du bois mort en for\u00eat - 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\/maximiser-les-bienfaits-du-bois-mort-en-foret\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Maximiser les bienfaits du bois mort en for\u00eat - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"Les modifications du fonctionnement naturel des \u00e9cosyst\u00e8mes menacent la biodiversit\u00e9 \u00e0 travers le monde et plus particuli\u00e8rement la biodiversit\u00e9 foresti\u00e8re. La plupart des strat\u00e9gies visant \u00e0 att\u00e9nuer la perte de diversit\u00e9 favorisent le maintien d\u2019une plus grande quantit\u00e9 de bois mort en for\u00eat, une ressource primordiale pour beaucoup d\u2019esp\u00e8ces de d\u00e9composeurs. 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