{"id":44036,"date":"2025-08-27T15:56:13","date_gmt":"2025-08-27T15:56:13","guid":{"rendered":"https:\/\/paneco.ch\/?p=44036"},"modified":"2025-10-28T12:41:24","modified_gmt":"2025-10-28T12:41:24","slug":"ils-se-deplacent-a-pas-feutres-les-petits-mammiferes","status":"publish","type":"post","link":"https:\/\/paneco.ch\/fr\/ils-se-deplacent-a-pas-feutres-les-petits-mammiferes\/","title":{"rendered":"Ils se d\u00e9placent \u00e0 pas feutr\u00e9s : les petits mammif\u00e8res"},"content":{"rendered":"\n<p>Les tunnels \u00e0 traces sont des outils permettant de d\u00e9tecter les petits mammif\u00e8res. Construits en bois, \u00e9quip\u00e9s \u00e0 l&rsquo;int\u00e9rieur d&rsquo;une fine bande de papier et de tampons encreurs, ils repr\u00e9sentent pour les animaux des passages discrets. Les animaux qui les traversent y laissent alors leurs empreintes. Les stagiaires ont install\u00e9 les tunnels pr\u00e8s du centre nature, \u00e0 trois endroits diff\u00e9rents. Elles ont veill\u00e9 \u00e0 pouvoir \u00e9tudier la situation \u00e0 diff\u00e9rentes hauteurs ainsi que dans divers micro-habitats (directement au sol, sur des branches ou \u00e0 proximit\u00e9 de bois mort) afin d&rsquo;obtenir un tableau aussi complet que possible de tous les animaux arpentant ces lieux.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/paneco.ch\/wp-content\/uploads\/2025\/08\/Installation_Manu_.jpg\" alt=\"\" class=\"wp-image-43647\" srcset=\"https:\/\/paneco.ch\/wp-content\/uploads\/2025\/08\/Installation_Manu_.jpg 800w, https:\/\/paneco.ch\/wp-content\/uploads\/2025\/08\/Installation_Manu_-768x576.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\"><em>Manu installe l&rsquo;un des tunnels \u00e0 traces sur une branche plus \u00e9lev\u00e9e.<\/em><\/figcaption><\/figure>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"654\" height=\"490\" data-id=\"43616\" src=\"https:\/\/paneco.ch\/wp-content\/uploads\/2025\/08\/Spurentunnel2.jpg\" alt=\"\" class=\"wp-image-43616\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"2560\" height=\"1920\" data-id=\"43607\" src=\"https:\/\/paneco.ch\/wp-content\/uploads\/2025\/08\/Spurentunnel1-scaled.jpg\" alt=\"\" class=\"wp-image-43607\" srcset=\"https:\/\/paneco.ch\/wp-content\/uploads\/2025\/08\/Spurentunnel1-scaled.jpg 2560w, https:\/\/paneco.ch\/wp-content\/uploads\/2025\/08\/Spurentunnel1-768x576.jpg 768w, https:\/\/paneco.ch\/wp-content\/uploads\/2025\/08\/Spurentunnel1-1536x1152.jpg 1536w, https:\/\/paneco.ch\/wp-content\/uploads\/2025\/08\/Spurentunnel1-2048x1536.jpg 2048w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/figure>\n<\/figure>\n\n\n\n<p><em>Ces tunnels ont \u00e9t\u00e9 plac\u00e9s dans des habitats divers et \u00e0 des hauteurs diff\u00e9rentes.<\/em><\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1920\" src=\"https:\/\/paneco.ch\/wp-content\/uploads\/2025\/08\/Spurenbrett-scaled.jpg\" alt=\"\" class=\"wp-image-43601\" srcset=\"https:\/\/paneco.ch\/wp-content\/uploads\/2025\/08\/Spurenbrett-scaled.jpg 2560w, https:\/\/paneco.ch\/wp-content\/uploads\/2025\/08\/Spurenbrett-768x576.jpg 768w, https:\/\/paneco.ch\/wp-content\/uploads\/2025\/08\/Spurenbrett-1536x1152.jpg 1536w, https:\/\/paneco.ch\/wp-content\/uploads\/2025\/08\/Spurenbrett-2048x1536.jpg 2048w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><figcaption class=\"wp-element-caption\"><em>Les pattes des animaux s\u2019impr\u00e8gnent de la couleur du tampon encreur et laissent ainsi leurs traces sur la bande de papier.<\/em><\/figcaption><\/figure>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>Qui est pass\u00e9 par l\u00e0 ?<\/strong><\/p>\n\n\n\n<p>Pendant le mois d\u2019ao\u00fbt, Alex et Mich\u00e8le ont contr\u00f4l\u00e9 tous les jours les tunnels \u00e0 traces, elles ont remplac\u00e9 les bandes de papier et v\u00e9rifi\u00e9 qu\u2019il restait toujours assez d&rsquo;encre. Elles ont rapidement remarqu\u00e9 un \u00ab habitu\u00e9 \u00bb : le mulot sylvestre (Apodemus sylvaticus, sur la photo de couverture). Ses petites empreintes \u00e9taient souvent clairement visibles. Elles ont pu aussi observer r\u00e9guli\u00e8rement des empreintes de muscardins (Muscardinus avellanarius) et de loirs (Glis glis). C\u2019\u00e9tait toujours un moment exaltant lorsqu\u2019elles d\u00e9couvraient les traces d\u2019une nouvelle esp\u00e8ce d\u2019animal sur la bande de papier.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-3 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"755\" height=\"567\" data-id=\"43592\" src=\"https:\/\/paneco.ch\/wp-content\/uploads\/2025\/08\/Spur_Mauswiesel.jpg\" alt=\"\" class=\"wp-image-43592\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"712\" height=\"534\" data-id=\"43595\" src=\"https:\/\/paneco.ch\/wp-content\/uploads\/2025\/08\/Spur_Siebenschlaefer.jpg\" alt=\"\" class=\"wp-image-43595\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"537\" height=\"402\" data-id=\"43598\" src=\"https:\/\/paneco.ch\/wp-content\/uploads\/2025\/08\/Spur_Waldmaus.jpg\" alt=\"\" class=\"wp-image-43598\"\/><\/figure>\n<\/figure>\n\n\n\n<p><em>Voici \u00e0 quoi ressemblent les empreintes (de gauche \u00e0 droite) : de la belette, du loir et de la patte avant d&rsquo;un mulot.<\/em><\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><strong>Ce qui est essentiel dans l&rsquo;interpr\u00e9tation des traces<\/strong><\/p>\n\n\n\n<p>Le projet ne s\u2019est pas d\u00e9roul\u00e9 sans difficult\u00e9s. L\u2019identification des traces est un art en soi et d\u00e9pend de diff\u00e9rents facteurs. Les stagiaires devaient parfois se creuser la cervelle pour trouver l\u2019appartenance des empreintes. Par temps pluvieux, on a d\u00e9couvert aussi de nombreuses traces gluantes ainsi que des restes de papier rong\u00e9s laiss\u00e9s par des escargots. Par contre par temps chaud, les tampons encreurs risquaient de se dess\u00e9cher. L\u2019entretien et l\u2019\u00e9valuation des tunnels \u00e0 traces, hors sol, ont \u00e9t\u00e9 bien plus faciles \u00e0 r\u00e9aliser. Au bout d\u2019un mois de projet en cours, les tunnels pos\u00e9s au sol \u00e9taient envahis par la v\u00e9g\u00e9tation, l&rsquo;un d&rsquo;entre eux avait m\u00eame \u00e9t\u00e9 transform\u00e9 en fourmili\u00e8re. On a moins rencontr\u00e9 ces probl\u00e8mes pour les tunnels \u00e0 traces install\u00e9s plus en hauteur et on y a aussi constat\u00e9 la pr\u00e9sence des m\u00eames esp\u00e8ces animales.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/paneco.ch\/wp-content\/uploads\/2025\/08\/diverse_Spuren_BEARB.jpg\" alt=\"\" class=\"wp-image-43589\" srcset=\"https:\/\/paneco.ch\/wp-content\/uploads\/2025\/08\/diverse_Spuren_BEARB.jpg 800w, https:\/\/paneco.ch\/wp-content\/uploads\/2025\/08\/diverse_Spuren_BEARB-768x576.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\"><em>Une v\u00e9ritable \u0153uvre d&rsquo;art naturelle : une bande de papier tr\u00e8s \u00ab fr\u00e9quent\u00e9e \u00bb comportant de multiples empreintes.<\/em><\/figcaption><\/figure>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Malgr\u00e9 ces obstacles, les tunnels \u00e0 traces ont permis aux futures animatrices d\u2019\u00e9ducation \u00e0 l\u2019environnement de r\u00e9aliser un voyage passionnant \u00e0 travers le monde des petits habitants de la for\u00eat. Elles ont non seulement appris \u00e0 identifier les empreintes mais elles ont aussi vite pris conscience du grand nombre de facteurs jouant un r\u00f4le important dans un tel projet de recherche. Nous savons d\u00e9sormais qu\u2019il se passe beaucoup de choses dans les sous-bois en ao\u00fbt m\u00eame si la nuit semble calme. Gr\u00e2ce aux tunnels \u00e0 traces, nous avons pu avoir un aper\u00e7u de cette agitation secr\u00e8te. Qui sait, peut-\u00eatre aurons-nous \u00e0 nouveau recours aux tunnels \u00e0 traces l&rsquo;\u00e9t\u00e9 prochain. Il y a certainement encore beaucoup de pattes d\u00e9sirant raconter leur histoire sur les bandes de papier.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Alex et Mich\u00e8le, stagiaires au centre nature, ont observ\u00e9 cet \u00e9t\u00e9 la vie sur le sol de la for\u00eat. Elles se sont int\u00e9ress\u00e9 aux petits mammif\u00e8res. Ces derniers, s&rsquo;\u00e9battant entre les racines, le bois mort et les ruisseaux, restent tr\u00e8s souvent cach\u00e9s. Nos stagiaires souhaitaient les connaitre mieux et se sont lanc\u00e9 sur la piste de ces mammif\u00e8res discrets. Voici ce qu&rsquo;elles ont d\u00e9couvert !<\/p>\n","protected":false},"author":13,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[136,133],"tags":[],"class_list":["post-44036","post","type-post","status-publish","format-standard","hentry","category-centre-nature-thurauen","category-flore-faune"],"_links":{"self":[{"href":"https:\/\/paneco.ch\/fr\/wp-json\/wp\/v2\/posts\/44036","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/paneco.ch\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/paneco.ch\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/paneco.ch\/fr\/wp-json\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/paneco.ch\/fr\/wp-json\/wp\/v2\/comments?post=44036"}],"version-history":[{"count":1,"href":"https:\/\/paneco.ch\/fr\/wp-json\/wp\/v2\/posts\/44036\/revisions"}],"predecessor-version":[{"id":44037,"href":"https:\/\/paneco.ch\/fr\/wp-json\/wp\/v2\/posts\/44036\/revisions\/44037"}],"wp:attachment":[{"href":"https:\/\/paneco.ch\/fr\/wp-json\/wp\/v2\/media?parent=44036"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/paneco.ch\/fr\/wp-json\/wp\/v2\/categories?post=44036"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/paneco.ch\/fr\/wp-json\/wp\/v2\/tags?post=44036"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}