{"id":33167,"date":"2021-06-28T10:10:04","date_gmt":"2021-06-28T08:10:04","guid":{"rendered":"https:\/\/gjkkadksm.preview.infomaniak.website\/?post_type=resume-foret-mail&p=33167"},"modified":"2021-06-28T10:10:04","modified_gmt":"2021-06-28T08:10:04","slug":"invasions-biologiques-1288-milliards-de-dollars-de-degats","status":"publish","type":"resume-foret-mail","link":"https:\/\/foretnature.be\/en\/resume-foret-mail\/invasions-biologiques-1288-milliards-de-dollars-de-degats\/","title":{"rendered":"Invasions biologiques : 1288 milliards de dollars de d\u00e9g\u00e2ts"},"content":{"rendered":"

On en entend trop peu parler dans les m\u00e9dias ou ailleurs. Les invasions biologiques sont pourtant une cause majeure de d\u00e9g\u00e2ts, non seulement \u00e9cologiques (extinction d\u2019esp\u00e8ces locales) mais aussi sanitaires (allergies, toxicit\u00e9) et \u00e9conomiques (dommages aux infrastructures). Les esp\u00e8ces exotiques envahissantes ont colonis\u00e9 tous les endroits o\u00f9 l\u2019Humain a mis les pieds depuis des si\u00e8cles. Ce n\u2019est pas un probl\u00e8me en soi, sauf quand leur d\u00e9veloppement menace la faune et la flore indig\u00e8nes, menant \u00e0 de lourdes perturbations des \u00e9cosyst\u00e8mes et des cha\u00eenes trophiques. R\u00e9cemment, une \u00e9quipe de chercheurs fran\u00e7ais a ainsi chiffr\u00e9 les co\u00fbts \u00e9conomiques des invasions biologiques dans le monde, en les compilant dans la base de donn\u00e9es \u00ab InvaCost \u00bb, un travail complexe de standardisation de donn\u00e9es d\u2019origines diverses et li\u00e9es \u00e0 des d\u00e9g\u00e2ts vari\u00e9s \u00e0 travers le monde. Finalement, une somme globale a pu \u00eatre calcul\u00e9e \u00e0 l\u2019\u00e9chelle mondiale : 1288 milliards de dollars de co\u00fbts \u00e9conomiques ! Une somme astronomique et pourtant largement sous-estim\u00e9e. En effet, seules les donn\u00e9es les plus robustes ont \u00e9t\u00e9 prises en compte et certains d\u00e9g\u00e2ts ne sont pas mon\u00e9tis\u00e9s ou mon\u00e9tisables.<\/p>\n

Ces milliers de milliards de dollars de pertes repr\u00e9sentent dix \u00e0 cent fois plus que les investissements r\u00e9alis\u00e9s pour \u00e9viter ou contr\u00f4ler les invasions biologiques. De plus, avec le temps, on observe une augmentation exponentielle des co\u00fbts. Rien qu\u2019en 2017, ils repr\u00e9sentent plus de 163 milliards de dollars. C\u2019est dire la n\u00e9cessit\u00e9 de contr\u00f4ler ces invasions le plus t\u00f4t possible. Un \u00e9norme travail de pr\u00e9vention doit \u00eatre r\u00e9alis\u00e9 \u00e0 cet \u00e9gard. D\u00e8s qu\u2019une invasion est d\u00e9tect\u00e9e, des actions doivent \u00eatre mises en place pour l\u2019enrayer au maximum. Ceci limitera non seulement les d\u00e9g\u00e2ts \u00e0 la biodiversit\u00e9 locale, mais r\u00e9duira aussi grandement les co\u00fbts de gestion d\u2019un tel fl\u00e9au.<\/p>","protected":false},"excerpt":{"rendered":"

On en entend trop peu parler dans les m\u00e9dias ou ailleurs. Les invasions biologiques sont pourtant une cause majeure de d\u00e9g\u00e2ts, non seulement \u00e9cologiques (extinction d\u2019esp\u00e8ces locales) mais aussi sanitaires (allergies, toxicit\u00e9) et \u00e9conomiques (dommages aux infrastructures). Les esp\u00e8ces exotiques envahissantes ont colonis\u00e9 tous les endroits o\u00f9 l\u2019Humain a mis les pieds depuis des si\u00e8cles. […]<\/p>","protected":false},"featured_media":0,"template":"","categories":[50],"acf":[],"yoast_head":"\nInvasions biologiques : 1288 milliards de dollars de d\u00e9g\u00e2ts - 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\/invasions-biologiques-1288-milliards-de-dollars-de-degats\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Invasions biologiques : 1288 milliards de dollars de d\u00e9g\u00e2ts - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"On en entend trop peu parler dans les m\u00e9dias ou ailleurs. 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