{"id":1970,"date":"2022-02-17T12:59:38","date_gmt":"2022-02-17T12:59:38","guid":{"rendered":"https:\/\/www.epl-bazas.fr\/Botanique\/?p=1970"},"modified":"2022-02-24T09:50:14","modified_gmt":"2022-02-24T09:50:14","slug":"les-lichens-ils-sont-partout","status":"publish","type":"post","link":"https:\/\/www.epl-bazas.fr\/Botanique\/2022\/02\/17\/les-lichens-ils-sont-partout\/","title":{"rendered":"Les lichens, ils sont partout !"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"1970\" class=\"elementor elementor-1970\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6af9972 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6af9972\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d03da4e\" data-id=\"d03da4e\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8fee68d elementor-widget elementor-widget-text-editor\" data-id=\"8fee68d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Il n&rsquo;y aurait pas loin de 20\u00a0000 esp\u00e8ces diff\u00e9rentes de lichens sur notre plan\u00e8te dont plus de 2\u00a0000 rien qu&rsquo;en France\u00a0!<\/p><p>Rappelons qu&rsquo;un lichen r\u00e9sulte de l&rsquo;association symbiotique \u00e9troite entre 2 organismes que sont une algue et un champignon. En cela, les lichens sont diff\u00e9rents des mousses avec lesquelles on pourrait parfois les confondre.<\/p><p>Les 2 partenaires trouvent un b\u00e9n\u00e9fice r\u00e9ciproque \u00e0 cette symbiose, chacun apportant quelque chose d&rsquo;utile \u00e0 l&rsquo;autre en lui permettant de vivre en compagnie de son symbiote l\u00e0 o\u00f9 le lichen est install\u00e9. Sch\u00e9matiquement l&rsquo;algue par la photosynth\u00e8se apporte entre-autres sucres et oxyg\u00e8ne, pour le champignon se sera principalement l&rsquo;eau et les sels min\u00e9raux.<\/p><p>L&rsquo;extr\u00eame diversit\u00e9 de cet embranchement des Thallophytes chlorophylliens rend souvent complexe l&rsquo;identification des esp\u00e8ces. On peut cependant rep\u00e9rer quelques grands types :<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-79168dc elementor-widget elementor-widget-image-gallery\" data-id=\"79168dc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image-gallery.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-image-gallery\">\n\t\t\t<div id='gallery-1' class='gallery galleryid-1970 gallery-columns-3 gallery-size-medium'><figure class='gallery-item'>\r\n    \t\t<div class='gallery-icon landscape'>\r\n    \t\t\t<a href='https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220216_172626.jpg' data-fancybox='group3' data-caption='Lichen fruticuleux'><img fetchpriority=\"high\" decoding=\"async\" width=\"300\" height=\"243\" src=\"https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220216_172626-300x243.jpg\" class=\"attachment-medium size-medium\" alt=\"\" aria-describedby=\"gallery-1-1996\" srcset=\"https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220216_172626-300x243.jpg 300w, https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220216_172626-1024x830.jpg 1024w, https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220216_172626-768x623.jpg 768w, https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220216_172626-74x60.jpg 74w, https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220216_172626.jpg 1481w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\r\n    \t\t<\/div>\r\n    \t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-1996'>\r\n    \t\t\tLichen fruticuleux\r\n    \t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\r\n    \t\t<div class='gallery-icon landscape'>\r\n    \t\t\t<a href='https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220216_173612.jpg' data-fancybox='group3' data-caption='Lichen foliac\u00e9'><img decoding=\"async\" width=\"300\" height=\"133\" src=\"https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220216_173612-300x133.jpg\" class=\"attachment-medium size-medium\" alt=\"\" aria-describedby=\"gallery-1-1997\" srcset=\"https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220216_173612-300x133.jpg 300w, https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220216_173612-1024x453.jpg 1024w, https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220216_173612-768x340.jpg 768w, https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220216_173612-1536x680.jpg 1536w, https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220216_173612-136x60.jpg 136w, https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220216_173612.jpg 1590w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\r\n    \t\t<\/div>\r\n    \t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-1997'>\r\n    \t\t\tLichen foliac\u00e9\r\n    \t\t\t<\/figcaption><\/figure><figure class='gallery-item'>\r\n    \t\t<div class='gallery-icon portrait'>\r\n    \t\t\t<a href='https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220217_140857-scaled.jpg' data-fancybox='group3' data-caption='Lichen crustac\u00e9'><img decoding=\"async\" width=\"258\" height=\"300\" src=\"https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220217_140857-258x300.jpg\" class=\"attachment-medium size-medium\" alt=\"\" aria-describedby=\"gallery-1-1998\" srcset=\"https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220217_140857-258x300.jpg 258w, https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220217_140857-882x1024.jpg 882w, https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220217_140857-768x892.jpg 768w, https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220217_140857-1323x1536.jpg 1323w, https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220217_140857-1763x2048.jpg 1763w, https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220217_140857-52x60.jpg 52w\" sizes=\"(max-width: 258px) 100vw, 258px\" \/><\/a>\r\n    \t\t<\/div>\r\n    \t\t\t<figcaption class='wp-caption-text gallery-caption' id='gallery-1-1998'>\r\n    \t\t\tLichen crustac\u00e9\r\n    \t\t\t<\/figcaption><\/figure>\r\n    \t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8f61200 elementor-widget elementor-widget-text-editor\" data-id=\"8f61200\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Et lichens g\u00e9latineux, squameux&#8230;<\/p><p>Les lichens sont de remarquables colonisateurs, ils sont rupicoles, terricoles, corticoles&#8230; avec des tr\u00e8s grandes variations sur ces conditions de milieux. Ils les ont tous colonis\u00e9s (esp\u00e8ces cosmopolites et ubiquistes) avec de tr\u00e8s bonnes r\u00e9sistances \u00e0 des conditions extr\u00eames.<\/p><p>En outre les lichens sont consid\u00e9r\u00e9s comme des bio-indicateurs en particulier concernant la pr\u00e9sence et le taux de certains polluants dans l&rsquo;air.<\/p><p>Alors si vous voulez en savoir plus sur ce monde complexe et myst\u00e9rieux, un site de r\u00e9f\u00e9rence en lich\u00e9nologie\u00a0: <a href=\"http:\/\/www.afl-lichenologie.fr\/\" target=\"_blank\" rel=\"noopener\">afl-lich\u00e9nologie.fr<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b8533c7 elementor-widget elementor-widget-image\" data-id=\"b8533c7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"576\" height=\"1024\" src=\"https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220220_150057-576x1024.jpg\" class=\"attachment-large size-large wp-image-2159\" alt=\"\" srcset=\"https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220220_150057-576x1024.jpg 576w, https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220220_150057-169x300.jpg 169w, https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220220_150057-768x1365.jpg 768w, https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220220_150057-864x1536.jpg 864w, https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220220_150057-1152x2048.jpg 1152w, https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220220_150057-34x60.jpg 34w, https:\/\/www.epl-bazas.fr\/Botanique\/wp-content\/uploads\/2022\/02\/20220220_150057-scaled.jpg 1440w\" sizes=\"(max-width: 576px) 100vw, 576px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Il n&rsquo;y aurait pas loin de 20\u00a0000 esp\u00e8ces diff\u00e9rentes de lichens sur notre plan\u00e8te dont plus de 2\u00a0000 rien qu&rsquo;en France\u00a0! Rappelons qu&rsquo;un lichen r\u00e9sulte &hellip; <\/p>\n","protected":false},"author":3,"featured_media":2015,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31,24],"tags":[],"class_list":["post-1970","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-clin-doeil","category-determination"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Les lichens, ils sont partout ! - Des clics botaniques<\/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.epl-bazas.fr\/Botanique\/2022\/02\/17\/les-lichens-ils-sont-partout\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Les lichens, ils sont partout ! - Des clics botaniques\" \/>\n<meta property=\"og:description\" content=\"Il n&rsquo;y aurait pas loin de 20\u00a0000 esp\u00e8ces diff\u00e9rentes de lichens sur notre plan\u00e8te dont plus de 2\u00a0000 rien qu&rsquo;en France\u00a0! 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