{"id":57035,"date":"2024-03-09T08:35:03","date_gmt":"2024-03-09T08:35:03","guid":{"rendered":"https:\/\/lecoursdelavie.com\/?p=57035"},"modified":"2024-03-09T08:35:05","modified_gmt":"2024-03-09T08:35:05","slug":"le-lichen-du-noyer","status":"publish","type":"post","link":"https:\/\/lecoursdelavie.com\/?p=57035","title":{"rendered":"Le lichen du noyer."},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><em>J&rsquo;ignore s&rsquo;il existe un lichen sp\u00e9cifique du noyer&#8230;<\/em><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/lecoursdelavie.com\/wp-content\/uploads\/2024\/03\/IMG_7499.jpg\" alt=\"\" class=\"wp-image-57038\" srcset=\"https:\/\/lecoursdelavie.com\/wp-content\/uploads\/2024\/03\/IMG_7499.jpg 1024w, https:\/\/lecoursdelavie.com\/wp-content\/uploads\/2024\/03\/IMG_7499-300x225.jpg 300w, https:\/\/lecoursdelavie.com\/wp-content\/uploads\/2024\/03\/IMG_7499-768x576.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Au cours de ma derni\u00e8re balade, j&rsquo;ai remarqu\u00e9 que des noyers pr\u00e9sentaient de larges plages de lichen jaune. Cela m&rsquo;int\u00e9ressait d&rsquo;en savoir plus sur cette curiosit\u00e9 tr\u00e8s localis\u00e9e.<br>Le ph\u00e9nom\u00e8ne est-il d\u00e9crit quelque part sur la toile ?<br>Je me suis donc inform\u00e9 et j&rsquo;ai d\u00e9couvert ceci :<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le lichen des arbres n&rsquo;est pas dangereux pour le v\u00e9g\u00e9tal support. <br>Il ne d\u00e9range en rien l&rsquo;\u00e9corce sur laquelle il est fix\u00e9 et ne parasite pas l&rsquo;arbre comme le gui. <br>Le lichen est le \u00ab\u00a0fruit\u00a0\u00bb d&rsquo;une symbiose entre un champignon et une algue, chaque \u00e9l\u00e9ment apporte sa contribution n\u00e9cessaire au d\u00e9veloppement de l&rsquo;ensemble (Chlorophylle pour l&rsquo;algue, humidit\u00e9 pour le champignon).<br>Il est inutile de s&rsquo;inqui\u00e9ter sur l&rsquo;\u00e9tat de sant\u00e9 de l&rsquo;arbre, qui souvent est un h\u00f4te \u00e2g\u00e9.<br>La remarque la plus int\u00e9ressante est de savoir que cette pr\u00e9sence de lichen est signe de <strong>non pollution<\/strong> de l&rsquo;endroit et <strong>l&rsquo;air y est sain<\/strong>.<br>Si cette pr\u00e9sence peut effectivement servir de refuge \u00e0 des insectes parasites, ces derniers font le r\u00e9gal des oiseaux insectivores. <br>Tout est li\u00e9, c&rsquo;est la loi de la nature.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Je me doutais en prenant ces clich\u00e9s, en apparence sans int\u00e9r\u00eat, que j&rsquo;allais d\u00e9couvrir une r\u00e9alit\u00e9 toute diff\u00e9rente de ce que l&#8217;empirisme nous fait imaginer.<br>\u00ab\u00a0Il n&rsquo;y de science que du cach\u00e9\u00a0\u00bb \u00e9crivait Gaston Bachelard. Le savoir intervient apr\u00e8s l&rsquo;observation en d\u00e9livrant les lois se la nature.<br>Ce sera l&rsquo;objet de ma prochaine exposition : <strong>\u00ab\u00a0Curieuses bestioles de nos jardins\u00a0\u00bb<\/strong>.<br>Je sugg\u00e8rerai une approche plus approfondie du spectacle trompeur de la nature. Trompeur dans le sens o\u00f9 les apparences camouflent une autre r\u00e9alit\u00e9. <br>Chemin faisant, je continue \u00e0 m&rsquo;impr\u00e9gner de savoir, un savoir que j&rsquo;aurai \u00e0 peine effleur\u00e9 avant de quitter cette magnifique plan\u00e8te, trop souvent maltrait\u00e9e par l&rsquo;ignorance et l&rsquo;arrogance humaines.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N&rsquo;oubliez jamais que la simple promenade peut \u00eatre source de savoir jusque l\u00e0 ignor\u00e9.<br>Se balader, certes, mais regarder, observer et s&rsquo;informer ensuite est un plaisir perp\u00e9tuellement renouvel\u00e9&#8230;<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/lecoursdelavie.com\/wp-content\/uploads\/2024\/03\/IMG_7505.jpg\" alt=\"\" class=\"wp-image-57039\" srcset=\"https:\/\/lecoursdelavie.com\/wp-content\/uploads\/2024\/03\/IMG_7505.jpg 1024w, https:\/\/lecoursdelavie.com\/wp-content\/uploads\/2024\/03\/IMG_7505-300x225.jpg 300w, https:\/\/lecoursdelavie.com\/wp-content\/uploads\/2024\/03\/IMG_7505-768x576.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/lecoursdelavie.com\/wp-content\/uploads\/2024\/03\/IMG_7507.jpg\" alt=\"\" class=\"wp-image-57041\" srcset=\"https:\/\/lecoursdelavie.com\/wp-content\/uploads\/2024\/03\/IMG_7507.jpg 1024w, https:\/\/lecoursdelavie.com\/wp-content\/uploads\/2024\/03\/IMG_7507-300x225.jpg 300w, https:\/\/lecoursdelavie.com\/wp-content\/uploads\/2024\/03\/IMG_7507-768x576.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/lecoursdelavie.com\/wp-content\/uploads\/2024\/03\/IMG_7509.jpg\" alt=\"\" class=\"wp-image-57040\" srcset=\"https:\/\/lecoursdelavie.com\/wp-content\/uploads\/2024\/03\/IMG_7509.jpg 768w, https:\/\/lecoursdelavie.com\/wp-content\/uploads\/2024\/03\/IMG_7509-225x300.jpg 225w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><figcaption class=\"wp-element-caption\"><em>Aucun probl\u00e8me pour le noyer, ici le lichen s&rsquo;est fix\u00e9 sur un bois inerte et vit en autonomie.<\/em><\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>J&rsquo;ignore s&rsquo;il existe un lichen sp\u00e9cifique du noyer&#8230; Au cours de ma derni\u00e8re balade, j&rsquo;ai remarqu\u00e9 que des noyers pr\u00e9sentaient de larges plages de lichen jaune. Cela m&rsquo;int\u00e9ressait d&rsquo;en savoir plus sur cette curiosit\u00e9 tr\u00e8s localis\u00e9e.Le ph\u00e9nom\u00e8ne est-il d\u00e9crit quelque part sur la toile ?Je me suis donc inform\u00e9 et j&rsquo;ai d\u00e9couvert ceci : Le<a class=\"more-link\" href=\"https:\/\/lecoursdelavie.com\/?p=57035\">Lire la suite de <span class=\"screen-reader-text\">\u00ab\u00a0Le lichen du noyer.\u00a0\u00bb<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":57036,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[29],"tags":[],"class_list":["post-57035","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.8 - aioseo.com -->\n\t<meta name=\"description\" content=\"J&#039;ignore s&#039;il existe un lichen sp\u00e9cifique du noyer... 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Au cours de ma derni\u00e8re balade, j'ai remarqu\u00e9 que des noyers pr\u00e9sentaient de larges plages de lichen jaune. Cela m'int\u00e9ressait d'en savoir plus sur cette curiosit\u00e9 tr\u00e8s localis\u00e9e.Le ph\u00e9nom\u00e8ne est-il d\u00e9crit quelque part sur la toile ?Je me suis donc inform\u00e9 et j'ai d\u00e9couvert ceci : Le","og:url":"https:\/\/lecoursdelavie.com\/?p=57035","article:published_time":"2024-03-09T08:35:03+00:00","article:modified_time":"2024-03-09T08:35:05+00:00","twitter:card":"summary","twitter:title":"Le lichen du noyer. - Le cours de la vie","twitter:description":"J'ignore s'il existe un lichen sp\u00e9cifique du noyer... Au cours de ma derni\u00e8re balade, j'ai remarqu\u00e9 que des noyers pr\u00e9sentaient de larges plages de lichen jaune. 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