{"id":590,"date":"2007-10-07T11:27:32","date_gmt":"2007-10-07T09:27:32","guid":{"rendered":"http:\/\/staging.sillon38.com\/2007\/10\/07\/laulne-vert-et-le-tetras-lyre\/"},"modified":"2007-10-07T11:27:32","modified_gmt":"2007-10-07T09:27:32","slug":"laulne-vert-et-le-tetras-lyre","status":"publish","type":"post","link":"https:\/\/www.sillon38.com\/blog\/2007\/10\/07\/laulne-vert-et-le-tetras-lyre\/","title":{"rendered":"L\u2019aulne vert et le t\u00e9tras-lyre"},"content":{"rendered":"

Une esp\u00e8ce v\u00e9g\u00e9tale qui prolif\u00e8re, l’aulne vert, une esp\u00e8ce animale en voie de disparition, le T\u00e9tras-lyre. Un jeune chercheur, qui a soutenu sa th\u00e8se \u00e0 Grenoble, il y a quelques mois, montre que dans les Alpes, la premi\u00e8re n’est pas tout \u00e0 fait sans cons\u00e9quence sur la seconde.<\/p>\n

\"images.jpg\"<\/p>\n

Le T\u00e9tras-lyre, ou petit coq de bruy\u00e8re, est un oiseau discret, particuli\u00e8rement sensible aux modifications de son habitat. Dans son travail de th\u00e8se, soutenue le 24 juin dernier \u00e0 Grenoble, Samuel Decout montre qu’\u00e0 l’\u00e9chelle du micro-habitat, la structure spatiale du peuplement v\u00e9g\u00e9tal -ici l’aulne vert- influe directement sur la pr\u00e9sence de l’oiseau.<\/p>\n

Avec la d\u00e9prise agricole amorc\u00e9e \u00e0 la fin des ann\u00e9es 1940, les paysages de montagne autrefois fa\u00e7onn\u00e9s et entretenus par l’homme, sont peu \u00e0 peu abandonn\u00e9s. Aux p\u00e2turages succ\u00e8dent des zones de reforestation spontan\u00e9e, qui ferment progressivement les milieux.<\/p>\n

\n

Dans les Alpes, cette \u00e9volution profite en particulier \u00e0 une esp\u00e8ce ligneuse locale, l’aulne vert qui, en 60 ans, a recolonis\u00e9 pr\u00e8s de 30 000 ha. Mais elle ne sied gu\u00e8re au T\u00e9tras-lyre, dont les populations diminuent dans toute l’Europe.<\/p>\n<\/blockquote>\n

Des mesures conservatoires ont \u00e9t\u00e9 prises en faveur de son habitat, les femelles qui nichent au sol et les poussins \u00e9tant tr\u00e8s sensibles aux perturbations de l’aire de reproduction estivale. A cette p\u00e9riode, les poules ont en effet besoin d’\u00e9voluer dans les milieux o\u00f9 la v\u00e9g\u00e9tation herbac\u00e9e est suffisamment haute et dense pour prot\u00e9ger le nid des poussins. Elles affectionnent ainsi les landes ou les zones herbeuses parsem\u00e9es d’arbustes colonisateurs.<\/p>\n

Samuel Decout a \u00e9tudi\u00e9 et mod\u00e9lis\u00e9 \u00e0 une \u00e9chelle fine, celle de l’espace choisi et occup\u00e9 par l’oiseau, l’impact de la structure spatiale du peuplement d’aulne vert sur la pr\u00e9sence du T\u00e9tras-lyre. Il r\u00e9v\u00e8le ainsi qu’une r\u00e9partition \u00ab\u00a0en mosa\u00efque\u00a0\u00bb des aulnes est plus favorable au maintien durable de l’oiseau dans son milieu. En mati\u00e8re de gestion, le pratique des coupes raisonn\u00e9es d’aulne vert, le maintien des stades interm\u00e9diaires d’embuissonnement et l’ouverture de fronts denses pourraient donc constituer autant de mesures conservatoires pour cet oiseau embl\u00e9matique.<\/p>\n

Source CEMAGREF <\/em><\/p>\n

L’aulne vert: un g\u00eaneur pour les stations de ski<\/strong><\/p>\n

Le service des pistes de Ch\u00e2tel (Haute-Savoie) a recours depuis peu, au cours de l’\u00e9t\u00e9, \u00e0 un engin de damage modifi\u00e9 pour d\u00e9broussailler les pistes de l\u2019aulne vert (commun\u00e9ment appel\u00e9 voraches), et autres v\u00e9g\u00e9tations g\u00eanantes lors des premi\u00e8res chutes de neige. Cette machine est \u00e9quip\u00e9e d\u2019un train de chenille caoutchouc et d\u2019une d\u00e9broussailleuse frontale. On peut toutefois se demander (\u00e0 tort, sans doute) si des nich\u00e9es de T\u00e9tras-lyres ne font pas les frais de cette op\u00e9ration.<\/p>\n

\"images-1.jpg\"<\/p>\n

 <\/p>\n

 <\/p>\n<\/blockquote>\n

D\u00e9broussaillage d’aulne vert \u00e0 Chatel (photo station)<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Une esp\u00e8ce v\u00e9g\u00e9tale qui prolif\u00e8re, l’aulne vert, une esp\u00e8ce animale en voie de disparition, le T\u00e9tras-lyre. Un jeune chercheur, qui a soutenu sa th\u00e8se \u00e0 Grenoble, il y a quelques mois, montre que dans les Alpes, la premi\u00e8re n’est pas…<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-590","post","type-post","status-publish","format-standard","hentry","category-nature"],"yoast_head":"\nL\u2019aulne vert et le t\u00e9tras-lyre -<\/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:\/\/www.sillon38.com\/blog\/2007\/10\/07\/laulne-vert-et-le-tetras-lyre\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"L\u2019aulne vert et le t\u00e9tras-lyre -\" \/>\n<meta property=\"og:description\" content=\"Une esp\u00e8ce v\u00e9g\u00e9tale qui prolif\u00e8re, l’aulne vert, une esp\u00e8ce animale en voie de disparition, le T\u00e9tras-lyre. Un jeune chercheur, qui a soutenu sa th\u00e8se \u00e0 Grenoble, il y a quelques mois, montre que dans les Alpes, la premi\u00e8re n’est pas...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.sillon38.com\/blog\/2007\/10\/07\/laulne-vert-et-le-tetras-lyre\/\" \/>\n<meta property=\"article:published_time\" content=\"2007-10-07T09:27:32+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/staging.sillon38.com\/wp-content\/uploads\/2007\/10\/images.jpg\" \/>\n<meta name=\"author\" content=\"M Coeur\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"M Coeur\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.sillon38.com\\\/blog\\\/2007\\\/10\\\/07\\\/laulne-vert-et-le-tetras-lyre\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.sillon38.com\\\/blog\\\/2007\\\/10\\\/07\\\/laulne-vert-et-le-tetras-lyre\\\/\"},\"author\":{\"name\":\"M Coeur\",\"@id\":\"https:\\\/\\\/www.sillon38.com\\\/blog\\\/#\\\/schema\\\/person\\\/72f06b5f0494d1edc8f4e5bf63651ff1\"},\"headline\":\"L\u2019aulne vert et le t\u00e9tras-lyre\",\"datePublished\":\"2007-10-07T09:27:32+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.sillon38.com\\\/blog\\\/2007\\\/10\\\/07\\\/laulne-vert-et-le-tetras-lyre\\\/\"},\"wordCount\":510,\"commentCount\":0,\"image\":{\"@id\":\"https:\\\/\\\/www.sillon38.com\\\/blog\\\/2007\\\/10\\\/07\\\/laulne-vert-et-le-tetras-lyre\\\/#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/staging.sillon38.com\\\/wp-content\\\/uploads\\\/2007\\\/10\\\/images.jpg\",\"articleSection\":[\"nature\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.sillon38.com\\\/blog\\\/2007\\\/10\\\/07\\\/laulne-vert-et-le-tetras-lyre\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.sillon38.com\\\/blog\\\/2007\\\/10\\\/07\\\/laulne-vert-et-le-tetras-lyre\\\/\",\"url\":\"https:\\\/\\\/www.sillon38.com\\\/blog\\\/2007\\\/10\\\/07\\\/laulne-vert-et-le-tetras-lyre\\\/\",\"name\":\"L\u2019aulne vert et le t\u00e9tras-lyre -\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.sillon38.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.sillon38.com\\\/blog\\\/2007\\\/10\\\/07\\\/laulne-vert-et-le-tetras-lyre\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.sillon38.com\\\/blog\\\/2007\\\/10\\\/07\\\/laulne-vert-et-le-tetras-lyre\\\/#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/staging.sillon38.com\\\/wp-content\\\/uploads\\\/2007\\\/10\\\/images.jpg\",\"datePublished\":\"2007-10-07T09:27:32+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/www.sillon38.com\\\/blog\\\/#\\\/schema\\\/person\\\/72f06b5f0494d1edc8f4e5bf63651ff1\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.sillon38.com\\\/blog\\\/2007\\\/10\\\/07\\\/laulne-vert-et-le-tetras-lyre\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.sillon38.com\\\/blog\\\/2007\\\/10\\\/07\\\/laulne-vert-et-le-tetras-lyre\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/www.sillon38.com\\\/blog\\\/2007\\\/10\\\/07\\\/laulne-vert-et-le-tetras-lyre\\\/#primaryimage\",\"url\":\"http:\\\/\\\/staging.sillon38.com\\\/wp-content\\\/uploads\\\/2007\\\/10\\\/images.jpg\",\"contentUrl\":\"http:\\\/\\\/staging.sillon38.com\\\/wp-content\\\/uploads\\\/2007\\\/10\\\/images.jpg\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.sillon38.com\\\/blog\\\/2007\\\/10\\\/07\\\/laulne-vert-et-le-tetras-lyre\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Accueil\",\"item\":\"https:\\\/\\\/www.sillon38.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"L\u2019aulne vert et le t\u00e9tras-lyre\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.sillon38.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.sillon38.com\\\/blog\\\/\",\"name\":\"\",\"description\":\"Le journal du monde rural\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.sillon38.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.sillon38.com\\\/blog\\\/#\\\/schema\\\/person\\\/72f06b5f0494d1edc8f4e5bf63651ff1\",\"name\":\"M Coeur\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"L\u2019aulne vert et le t\u00e9tras-lyre -","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.sillon38.com\/blog\/2007\/10\/07\/laulne-vert-et-le-tetras-lyre\/","og_locale":"fr_FR","og_type":"article","og_title":"L\u2019aulne vert et le t\u00e9tras-lyre -","og_description":"Une esp\u00e8ce v\u00e9g\u00e9tale qui prolif\u00e8re, l’aulne vert, une esp\u00e8ce animale en voie de disparition, le T\u00e9tras-lyre. Un jeune chercheur, qui a soutenu sa th\u00e8se \u00e0 Grenoble, il y a quelques mois, montre que dans les Alpes, la premi\u00e8re n’est pas...","og_url":"https:\/\/www.sillon38.com\/blog\/2007\/10\/07\/laulne-vert-et-le-tetras-lyre\/","article_published_time":"2007-10-07T09:27:32+00:00","og_image":[{"url":"http:\/\/staging.sillon38.com\/wp-content\/uploads\/2007\/10\/images.jpg","type":"","width":"","height":""}],"author":"M Coeur","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"M Coeur","Dur\u00e9e de lecture estim\u00e9e":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.sillon38.com\/blog\/2007\/10\/07\/laulne-vert-et-le-tetras-lyre\/#article","isPartOf":{"@id":"https:\/\/www.sillon38.com\/blog\/2007\/10\/07\/laulne-vert-et-le-tetras-lyre\/"},"author":{"name":"M Coeur","@id":"https:\/\/www.sillon38.com\/blog\/#\/schema\/person\/72f06b5f0494d1edc8f4e5bf63651ff1"},"headline":"L\u2019aulne vert et le t\u00e9tras-lyre","datePublished":"2007-10-07T09:27:32+00:00","mainEntityOfPage":{"@id":"https:\/\/www.sillon38.com\/blog\/2007\/10\/07\/laulne-vert-et-le-tetras-lyre\/"},"wordCount":510,"commentCount":0,"image":{"@id":"https:\/\/www.sillon38.com\/blog\/2007\/10\/07\/laulne-vert-et-le-tetras-lyre\/#primaryimage"},"thumbnailUrl":"http:\/\/staging.sillon38.com\/wp-content\/uploads\/2007\/10\/images.jpg","articleSection":["nature"],"inLanguage":"fr-FR","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.sillon38.com\/blog\/2007\/10\/07\/laulne-vert-et-le-tetras-lyre\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.sillon38.com\/blog\/2007\/10\/07\/laulne-vert-et-le-tetras-lyre\/","url":"https:\/\/www.sillon38.com\/blog\/2007\/10\/07\/laulne-vert-et-le-tetras-lyre\/","name":"L\u2019aulne vert et le t\u00e9tras-lyre -","isPartOf":{"@id":"https:\/\/www.sillon38.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.sillon38.com\/blog\/2007\/10\/07\/laulne-vert-et-le-tetras-lyre\/#primaryimage"},"image":{"@id":"https:\/\/www.sillon38.com\/blog\/2007\/10\/07\/laulne-vert-et-le-tetras-lyre\/#primaryimage"},"thumbnailUrl":"http:\/\/staging.sillon38.com\/wp-content\/uploads\/2007\/10\/images.jpg","datePublished":"2007-10-07T09:27:32+00:00","author":{"@id":"https:\/\/www.sillon38.com\/blog\/#\/schema\/person\/72f06b5f0494d1edc8f4e5bf63651ff1"},"breadcrumb":{"@id":"https:\/\/www.sillon38.com\/blog\/2007\/10\/07\/laulne-vert-et-le-tetras-lyre\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.sillon38.com\/blog\/2007\/10\/07\/laulne-vert-et-le-tetras-lyre\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.sillon38.com\/blog\/2007\/10\/07\/laulne-vert-et-le-tetras-lyre\/#primaryimage","url":"http:\/\/staging.sillon38.com\/wp-content\/uploads\/2007\/10\/images.jpg","contentUrl":"http:\/\/staging.sillon38.com\/wp-content\/uploads\/2007\/10\/images.jpg"},{"@type":"BreadcrumbList","@id":"https:\/\/www.sillon38.com\/blog\/2007\/10\/07\/laulne-vert-et-le-tetras-lyre\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Accueil","item":"https:\/\/www.sillon38.com\/blog\/"},{"@type":"ListItem","position":2,"name":"L\u2019aulne vert et le t\u00e9tras-lyre"}]},{"@type":"WebSite","@id":"https:\/\/www.sillon38.com\/blog\/#website","url":"https:\/\/www.sillon38.com\/blog\/","name":"","description":"Le journal du monde rural","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.sillon38.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Person","@id":"https:\/\/www.sillon38.com\/blog\/#\/schema\/person\/72f06b5f0494d1edc8f4e5bf63651ff1","name":"M Coeur"}]}},"_links":{"self":[{"href":"https:\/\/www.sillon38.com\/blog\/wp-json\/wp\/v2\/posts\/590","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sillon38.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sillon38.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sillon38.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sillon38.com\/blog\/wp-json\/wp\/v2\/comments?post=590"}],"version-history":[{"count":0,"href":"https:\/\/www.sillon38.com\/blog\/wp-json\/wp\/v2\/posts\/590\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.sillon38.com\/blog\/wp-json\/wp\/v2\/media?parent=590"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sillon38.com\/blog\/wp-json\/wp\/v2\/categories?post=590"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sillon38.com\/blog\/wp-json\/wp\/v2\/tags?post=590"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}