{"id":7736,"date":"2024-04-24T11:16:15","date_gmt":"2024-04-24T09:16:15","guid":{"rendered":"https:\/\/captaindarwin.org\/?p=7736"},"modified":"2024-04-24T11:16:48","modified_gmt":"2024-04-24T09:16:48","slug":"qui-a-envahi-saint-yvi-les-petits-detectives-des-plantes-en-action","status":"publish","type":"post","link":"https:\/\/captaindarwin.org\/fr\/2024\/04\/24\/qui-a-envahi-saint-yvi-les-petits-detectives-des-plantes-en-action\/","title":{"rendered":"Qui a envahi Saint-Yvi? Les petits d\u00e9tectives des plantes en action!"},"content":{"rendered":"

[et_pb_section fb_built=\u00a0\u00bb1″ disabled_on=\u00a0\u00bbon|off|off\u00a0\u00bb admin_label=\u00a0\u00bbHeader Blog DESKTOP\u00a0\u00bb _builder_version=\u00a0\u00bb4.16″ background_image=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2021\/11\/Background_20211126.jpg\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row _builder_version=\u00a0\u00bb4.19.5″ global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4″ _builder_version=\u00a0\u00bb4.16″ global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2022\/01\/BlogDarwin.png\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5″ max_width=\u00a0\u00bb40%\u00a0\u00bb custom_margin=\u00a0\u00bb-90px||-20px||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1″ disabled_on=\u00a0\u00bboff|on|on\u00a0\u00bb admin_label=\u00a0\u00bbHeader Blog PHONE\u00a0\u00bb _builder_version=\u00a0\u00bb4.16″ background_image=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2021\/11\/Background_20211126.jpg\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row _builder_version=\u00a0\u00bb4.16″ global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4″ _builder_version=\u00a0\u00bb4.16″ global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2022\/01\/BlogDarwin.png\u00a0\u00bb align=\u00a0\u00bbcenter\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5″ max_width=\u00a0\u00bb80%\u00a0\u00bb custom_margin=\u00a0\u00bb0px||-10px||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1″ admin_label=\u00a0\u00bbTexte + image\u00a0\u00bb _builder_version=\u00a0\u00bb4.16″ hover_enabled=\u00a0\u00bb0″ global_colors_info=\u00a0\u00bb{}\u00a0\u00bb sticky_enabled=\u00a0\u00bb0″][et_pb_row _builder_version=\u00a0\u00bb4.16″ global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4″ _builder_version=\u00a0\u00bb4.16″ global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_post_title author=\u00a0\u00bboff\u00a0\u00bb comments=\u00a0\u00bboff\u00a0\u00bb featured_image=\u00a0\u00bboff\u00a0\u00bb admin_label=\u00a0\u00bbTitre du poste\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5″ title_text_color=\u00a0\u00bb#777777″ title_font_size=\u00a0\u00bb35px\u00a0\u00bb title_letter_spacing=\u00a0\u00bb1px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_post_title][et_pb_text admin_label=\u00a0\u00bbTexte intro\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5″ text_orientation=\u00a0\u00bbjustified\u00a0\u00bb min_height=\u00a0\u00bb163.6px\u00a0\u00bb custom_margin=\u00a0\u00bb||-260px|||\u00a0\u00bb custom_padding=\u00a0\u00bb||159px|||\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n

sUne sortie atypique m\u2019attend ce mardi 16 avril \u00e0 Saint-Yvy ! Je rejoins la classe de CE2-CM1-CM2 en compagnie de Yanick, repr\u00e9sentant d\u2019Esprit\u2019Nature et b\u00e9n\u00e9vole de Bretagne vivante, grands connaisseurs de la flore de Bretagne.<\/p>\n

Aujourd\u2019hui, nous allons d\u00e9couvrir quelles esp\u00e8ces se cachent dans nos parcs de Bretagne. Envahissante ou non\u00a0? De chez nous, ou du bout du monde\u00a0?<\/p>\n

Yannick se pr\u00e9sente et nous d\u00e9voile que sa passion pour les plantes lui vient de sa m\u00e8re, elle-m\u00eame grande passionn\u00e9e du v\u00e9g\u00e9tale. \u00c0 travers cette anecdote, il nous transmet qu\u2019il suffit parfois d\u2019une source d\u2019inspiration du quotidien pour trouver ce qui nous passionne dans la vie. Des m\u00e9tiers on peut en avoir pleins, alors que les passions, \u00e7a se compte sur les doigts d\u2019une main\u00a0!<\/p>\n

Avec le temps qu\u2019il fait, c\u2019est-\u00e0-dire le temps breton mi-pluie mi-soleil, nous nous munissons de bottes \u00e9tanches pour partir au parc, qui se trouve juste en face de l\u2019\u00e9cole. Et la sortie commence d\u00e8s l\u2019entr\u00e9e ! Car Yannick nous montre la plante qui r\u00e8gne partout autour du ruisseau sous le pont, l\u2019\u0153nanthe safran\u00e9e. Voil\u00e0 une plante qui poss\u00e8de une racine hautement toxique, capable de tuer un bovin ! Une entr\u00e9e en mati\u00e8re qui fait froid dans le dos !<\/p>\n

Nous continuons notre chemin jusqu\u2019\u00e0 une vaste plaine remplie d\u2019une multitude de plantes que Yannick s\u2019empresse de nous d\u00e9voiler. Pour nous c\u2019est un horizon vert, pour lui c\u2019est un inventaire complet d\u2019une multitude d\u2019esp\u00e8ces\u00a0! Il y du rumex, qui se reconna\u00eet \u00e0 ces graines et sa tige rouge\u00e2tre. Je rajoute ma petite connaissance de cette plante\u00a0: comme sa tige est tr\u00e8s solide, les \u00e9leveurs de bovins n\u2019appr\u00e9cient pas que leurs vaches en consomment, car \u00e7a diminue la production de lait\u00a0! Alors qu\u2019en production de lait de ch\u00e8vre, il est tr\u00e8s courant d\u2019en donner aux ch\u00e8vres, car celles-ci la dig\u00e8rent tr\u00e8s facilement\u00a0! Ce n\u2019est pas pour rien que l\u2019ont dit que les ch\u00e8vres, \u00e7a mange vraiment tout\u00a0! Il y a aussi des boutons d\u2019or, avec des \u00e9tamines pleines de pollen. Yannick profite pour nous expliquer le cycle de reproduction d\u2019une fleur, gr\u00e2ce aux insectes pollinisateurs, attir\u00e9s naturellement par les plantes color\u00e9es\u00a0! Et comment vont celles qui n\u2019ont pas de couleurs\u00a0? Et bien elles ont \u00e9volu\u00e9 de sorte \u00e0 se d\u00e9brouiller autrement\u00a0! Certains s\u2019accrochent aux poils des animaux pour se r\u00e9pandre tr\u00e8s loin. D\u2019autres profitent du vent, comme le pissenlit\u00a0! Apr\u00e8s f\u00e9condation, les parachutes, ces petits poils blancs s\u2019envolent et se propagent. La p\u00e2querette nous d\u00e9voile aussi ces secrets\u00a0! Ce n\u2019est pas tout \u00e0 fait une fleur comme les autres, car elle repr\u00e9sente le sexe m\u00e2le et le sexe femelle en m\u00eame temps.<\/p>\n

Nous reprenons notre chemin, jusqu\u2019au bord du ruisseau, ou un mur de ronce d\u00e9finit bien la limite du parc. Il nous explique alors que ces \u00e9pines permettent \u00e0 des fleurs de ce prot\u00e9ger des pr\u00e9dateurs, et prot\u00e8ge aussi toute sorte d\u2019autres plantes \u00e0 ces \u00ab pieds \u00bb, ou plut\u00f4t \u00e0 ces racines. Comme le dactyle agglom\u00e9r\u00e9.<\/p>\n

[\/et_pb_text][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2024\/04\/1-1.png\u00a0\u00bb title_text=\u00a0\u00bb1″ align=\u00a0\u00bbcenter\u00a0\u00bb admin_label=\u00a0\u00bbImage ronce\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5″ transform_scale=\u00a0\u00bb69%|69%\u00a0\u00bb width=\u00a0\u00bb90%\u00a0\u00bb width_tablet=\u00a0\u00bb\u00a0\u00bb width_phone=\u00a0\u00bb100%\u00a0\u00bb width_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb min_height=\u00a0\u00bb493.8px\u00a0\u00bb custom_padding=\u00a0\u00bb|0px||||\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][et_pb_text admin_label=\u00a0\u00bbSous Texte\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5″ text_orientation=\u00a0\u00bbjustified\u00a0\u00bb min_height=\u00a0\u00bb4.8px\u00a0\u00bb custom_margin=\u00a0\u00bb-129px||10px|||\u00a0\u00bb custom_padding=\u00a0\u00bb0px||26px|||\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n

La ronce, un mur pas si imp\u00e9n\u00e9trable que \u00e7a…<\/em><\/p>\n

[\/et_pb_text][et_pb_text admin_label=\u00a0\u00bbTexte\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5″ text_orientation=\u00a0\u00bbjustified\u00a0\u00bb min_height=\u00a0\u00bb210.4px\u00a0\u00bb custom_margin=\u00a0\u00bb-14px||-203px|||\u00a0\u00bb custom_padding=\u00a0\u00bb||24px|||\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]\u00ab La plante des ing\u00e9nieurs \u00bb, car il parait que c\u2019est l\u2019une des rares qu\u2019ils connaissent ? Blague appart, le dactyle est commun, et tous les \u00e9l\u00e8ves semblent le connaitre. Il est m\u00eame comestible et \u00e0 ce moment-l\u00e0, l\u2019ensemble de la classe semble entendre \u00ab buffet \u00e0 volont\u00e9 \u00bb ! Chacun commence \u00e0 piocher un dactyle sur le chemin qui longe le ruisseau, et le goute avec curiosit\u00e9. Selon Yannick, nous ne mourrons pas de faim gr\u00e2ce \u00e0 cette information en cas de fin du monde.
\n[\/et_pb_text][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2024\/04\/2-1.png\u00a0\u00bb title_text=\u00a0\u00bb2″ align=\u00a0\u00bbcenter\u00a0\u00bb admin_label=\u00a0\u00bbImage app\u00e9tit\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5″ transform_scale=\u00a0\u00bb69%|69%\u00a0\u00bb width=\u00a0\u00bb90%\u00a0\u00bb width_tablet=\u00a0\u00bb\u00a0\u00bb width_phone=\u00a0\u00bb100%\u00a0\u00bb width_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb min_height=\u00a0\u00bb493.8px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][\/et_pb_image][et_pb_text admin_label=\u00a0\u00bbSous Texte\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5″ text_orientation=\u00a0\u00bbjustified\u00a0\u00bb min_height=\u00a0\u00bb4.8px\u00a0\u00bb custom_margin=\u00a0\u00bb-129px||-8px|||\u00a0\u00bb custom_padding=\u00a0\u00bb0px||0px|||\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n

\u00ab\u00a0La fin du monde\u00a0\u00bb<\/i><\/p>\n

[\/et_pb_text][et_pb_text admin_label=\u00a0\u00bbTexte\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5″ text_orientation=\u00a0\u00bbjustified\u00a0\u00bb min_height=\u00a0\u00bb154.4px\u00a0\u00bb custom_margin=\u00a0\u00bb-4px||-64px|||\u00a0\u00bb custom_padding=\u00a0\u00bb40px||84px|||\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]Comme nous longeons le ruisseau, nous rencontrons aussi du houx. Et des orties. \u00c0 propos du houx, nous apprenons que leur sexe est reconnaissable gr\u00e2ce \u00e0 la pr\u00e9sence de baie rouge pour la femelle, ainsi que des fleurs. Mais si aucun de ces deux signes n\u2019est pr\u00e9sent, il devient beaucoup plus dur de connaitre son sexe. Et pour l\u2019ortie, c\u2019est une plante tr\u00e8s int\u00e9ressante, car sa gourmandise nous apprend la qualit\u00e9 d\u2019un sol\u00a0! De quoi se nourrissent les plantes\u00a0? D\u2019\u00e9l\u00e9ment min\u00e9ral pr\u00e9sent dans le sol.\u00a0 Et l\u2019ortie, elle, est friande d\u2019azote et en consomme beaucoup. Votre sol est donc riche d\u2019azote si les orties poussent sans mal dans votre jardin. D\u2019ailleurs, Yannick arrive \u00e0 les prendre \u00e0 la main sans craindre les d\u00e9mangeaisons\u00a0! Il nous explique son tour de magie, en nous r\u00e9v\u00e9lant qu\u2019il suffit de prendre d\u00e9licatement la fleur pour ne pas planter ses \u00e9pines toxiques qui procurent cette d\u00e9sagr\u00e9able sensation. C\u2019est une plante qui permet aussi de soigner de nombreux probl\u00e8mes de sant\u00e9 et que nos grands-parents utilisaient couramment pour soigner des maux de gorge, au lieu d\u2019utiliser des m\u00e9dicaments. Il suffisait (et suffit toujours aujourd\u2019hui) de la pr\u00e9parer en soupe pour \u00eatre soign\u00e9 dans la journ\u00e9e.<\/p>\n

Mais comme la classe enti\u00e8re semble obnubil\u00e9e par le dactyle, Yannick ne peut s\u2019emp\u00eacher de nous donner une anecdote tr\u00e8s dr\u00f4le \u00e0 son sujet. Si nous prenons une feuille, et que nous la plions entre nos pouces, nous pouvons \u00ab\u00a0siffler\u00a0\u00bb au travers. C\u2019est alors que l\u2019ensemble de la classe, professeure incluse, se lance dans un concert de trompette r\u00e9alis\u00e9 en dactyle.
\n[\/et_pb_text][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2024\/04\/3-1.png\u00a0\u00bb title_text=\u00a0\u00bb3″ align=\u00a0\u00bbcenter\u00a0\u00bb admin_label=\u00a0\u00bbImage concert\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5″ transform_scale=\u00a0\u00bb99%|99%\u00a0\u00bb width=\u00a0\u00bb60%\u00a0\u00bb width_tablet=\u00a0\u00bb\u00a0\u00bb width_phone=\u00a0\u00bb100%\u00a0\u00bb width_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb min_height=\u00a0\u00bb384.1px\u00a0\u00bb hover_enabled=\u00a0\u00bb0″ global_colors_info=\u00a0\u00bb{}\u00a0\u00bb sticky_enabled=\u00a0\u00bb0″][\/et_pb_image][et_pb_text admin_label=\u00a0\u00bbSous Texte d’image\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5″ text_orientation=\u00a0\u00bbjustified\u00a0\u00bb min_height=\u00a0\u00bb18.8px\u00a0\u00bb custom_margin=\u00a0\u00bb-30px||20px|||\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n

\u00c7a c’est un orchestre v\u00e9g\u00e9tale !\u00a0<\/i><\/p>\n

[\/et_pb_text][et_pb_text _builder_version=\u00a0\u00bb4.19.5″ text_orientation=\u00a0\u00bbjustified\u00a0\u00bb min_height=\u00a0\u00bb230.4px\u00a0\u00bb custom_margin=\u00a0\u00bb-4px||-59px|||\u00a0\u00bb custom_padding=\u00a0\u00bb||24px|||\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]Tr\u00eave de plaisanterie, pour nous reconcentrer sur ce qui nous entoure.<\/p>\n

Sur le chemin qui m\u00e8ne au fond du parc, nous rencontrons une zone semi-bitum\u00e9, dite amortissante, sur lesquels ont \u00e9t\u00e9 pos\u00e9es des structures de jeu. Nous rentrons dans le vif du sujet \u00ab\u00a0les plantes dites envahissantes\u00a0\u00bb. Le sol est recouvert d\u2019une couche de mousse, et de quelques excroissances d\u2019herbes. Yannick intervient pour nous faire remarquer que quoi que l\u2019on construise, la nature finit toujours par reprendre ces droits et se fraye un chemin. Ainsi, lorsque cette mousse pousse au travers de ce sol textur\u00e9, et quelle meurt au bout de quelques jours, ses nutriments nourrissent l\u2019herbe qui pousse en dessous, lui permettant ainsi de pousser jusqu\u2019\u00e0 l\u2019air libre.
\n[\/et_pb_text][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2024\/04\/4-1.png\u00a0\u00bb title_text=\u00a0\u00bb4″ align=\u00a0\u00bbcenter\u00a0\u00bb admin_label=\u00a0\u00bbImages mousse\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5″ width=\u00a0\u00bb79%\u00a0\u00bb width_tablet=\u00a0\u00bb\u00a0\u00bb width_phone=\u00a0\u00bb100%\u00a0\u00bb width_last_edited=\u00a0\u00bbon|phone\u00a0\u00bb max_width=\u00a0\u00bb100%\u00a0\u00bb custom_padding=\u00a0\u00bb||0px|||\u00a0\u00bb hover_enabled=\u00a0\u00bb0″ global_colors_info=\u00a0\u00bb{}\u00a0\u00bb min_height=\u00a0\u00bb448.6px\u00a0\u00bb height=\u00a0\u00bb393px\u00a0\u00bb sticky_enabled=\u00a0\u00bb0″][\/et_pb_image][et_pb_text admin_label=\u00a0\u00bbSous Texte\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5″ text_orientation=\u00a0\u00bbjustified\u00a0\u00bb min_height=\u00a0\u00bb64.8px\u00a0\u00bb custom_margin=\u00a0\u00bb-72px||10px|||\u00a0\u00bb custom_padding=\u00a0\u00bb45px||0px|||\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n

Dame Nature reprend toujours ses droits<\/span><\/span><\/i><\/p>\n

[\/et_pb_text][et_pb_text admin_label=\u00a0\u00bbTexte\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5″ text_orientation=\u00a0\u00bbjustified\u00a0\u00bb min_height=\u00a0\u00bb21.2px\u00a0\u00bb custom_margin=\u00a0\u00bb||-62px|||\u00a0\u00bb custom_padding=\u00a0\u00bb0px||0px|||\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]Nous atteignons finalement le bout du parc apr\u00e8s une heure de balade riche en informations.<\/p>\n

Yannick nous pr\u00eate des \u0153illetons afin d\u2019observer de plus pr\u00e8s les plantes \u00e0 nos pieds. Nous nous divisons en groupe de trois, et piochons \u00e0 nos pieds toutes sortes de fleurs et de tiges toutes plus incroyables les unes que les autres vues de pr\u00e8s. Des \u00e9pines pointues, aux nervures transparentes, nous d\u00e9couvrons avec fascination \u00e0 quel point la nature est superbe. Chacun tient une fleur \u00e0 son voisin, pendant que l\u2019autre pioche ce qu\u2019ils n\u2019ont pas observ\u00e9, et que le troisi\u00e8me observe \u00e0 la loupe les d\u00e9tails du v\u00e9g\u00e9tal.<\/p>\n

[\/et_pb_text][et_pb_image src=\u00a0\u00bbhttps:\/\/captaindarwin.org\/wp-content\/uploads\/2024\/04\/5-1.png\u00a0\u00bb title_text=\u00a0\u00bb5″ align=\u00a0\u00bbcenter\u00a0\u00bb admin_label=\u00a0\u00bbImages de loupes\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5″ width=\u00a0\u00bb62%\u00a0\u00bb max_width=\u00a0\u00bb70%\u00a0\u00bb min_height=\u00a0\u00bb418.1px\u00a0\u00bb custom_margin=\u00a0\u00bb-43px|||||\u00a0\u00bb hover_enabled=\u00a0\u00bb0″ global_colors_info=\u00a0\u00bb{}\u00a0\u00bb sticky_enabled=\u00a0\u00bb0″][\/et_pb_image][et_pb_text admin_label=\u00a0\u00bbsous Texte\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5″ text_orientation=\u00a0\u00bbjustified\u00a0\u00bb min_height=\u00a0\u00bb42.8px\u00a0\u00bb custom_margin=\u00a0\u00bb-87px||1px|||\u00a0\u00bb custom_padding=\u00a0\u00bb0px||0px|||\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n

Le pissenlit et ses parachutes remportent ais\u00e9ment la m\u00e9daille de la plante la plus curieuse !<\/i><\/p>\n

[\/et_pb_text][et_pb_text admin_label=\u00a0\u00bbtexte\u00a0\u00bb _builder_version=\u00a0\u00bb4.19.5″ text_orientation=\u00a0\u00bbjustified\u00a0\u00bb custom_padding=\u00a0\u00bb0px|||||\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]Pr\u00e8s de nous se trouvent des Nombrils de v\u00e9nus, une plante grasse. Des berces spondyle, inoffensive contrairement \u00e0 la berce du Caucase, connue pour ces brulures photosensibles tr\u00e8s dangereuses\u00a0! Des stellaires, portant leurs noms pour leurs ressemblances aux \u00e9toiles dans l\u2019imaginaire cr\u00e9atif. Des cardamines des pr\u00e9s, dont quelques \u00e9l\u00e8ves connaissent bien le nom. Du plantain lanc\u00e9ol\u00e9, de la grande famille des plantains, comme le plantain \u00ab\u00a0corne\u00a0\u00bb de cerf assez rependu par chez nous. (Mauvaise vulgarisation du nom, car les cerfs n\u2019ont pas de cornes, ils ont des bois\u00a0!) Et aussi des foug\u00e8res, dont les spores se trouvent sous la feuille\u00a0! Encore une nouvelle fa\u00e7on de se reproduire dans le monde des v\u00e9g\u00e9taux.<\/p>\n

Jusqu\u2019\u00e0 la derni\u00e8re minute nous aurons appris des choses sur les plantes qui nous ont entour\u00e9s toute l\u2019apr\u00e8s-midi. \u00c0 pr\u00e9sent il est temps de rentrer \u00e0 l\u2019\u00e9cole pour faire la liste de tout ce que nous avons observ\u00e9.<\/p>\n

Nous profitons de notre derni\u00e8re demi-heure ensemble pour discuter des \u00e9volutions, v\u00e9g\u00e9tale et animale, que nous connaissons. De la diff\u00e9rence entre la s\u00e9lection naturelle, comme avec le M\u00e9gath\u00e9rium et le paresseux, et la s\u00e9lection de paterne dans l\u2019\u00e9levage de chiens. Malgr\u00e9 leurs jeunes \u00e2ges, la classe semble saisir que rien n\u2019est constant et que tout est en constante \u00e9volution. Nous les premiers, puisque nous sommes une esp\u00e8ce de singe, cousin des gorilles, et en aucun cas des \u00ab\u00a0descendants des singes\u00a0\u00bb\u00a0! Et apr\u00e8s ce tour du monde des \u00e9volutions, nous nous disons au revoir, et \u00e0 la prochaine fois\u00a0!<\/p>\n

La prochaine fois, nous rencontrerons Victor, sur les \u00eeles Gal\u00e1pagos pour une visioconf\u00e9rence comparant les esp\u00e8ces invasives animales et les esp\u00e8ces invasives v\u00e9g\u00e9tales\u00a0! Les Galapagos auraient-elles trouv\u00e9 l\u2019unique solution p\u00e9renne pour prot\u00e9ger leurs esp\u00e8ces end\u00e9miques des esp\u00e8ces invasives\u00a0? \u00a0Comment les v\u00e9g\u00e9taux ont-ils \u00e9volu\u00e9 contre les esp\u00e8ces envahissantes\u00a0? Nous le d\u00e9couvrirons la prochaine fois\u00a0!<\/p>\n

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R\u00e9daction : L\u00e9a Canovas, service civique en p\u00e9dagogie \u00e0 l’environnement<\/span><\/span><\/em><\/div>\n<\/div>\n

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sUne sortie atypique m\u2019attend ce mardi 16 avril \u00e0 Saint-Yvy ! Je rejoins la classe de CE2-CM1-CM2 en compagnie de Yanick, repr\u00e9sentant d\u2019Esprit\u2019Nature et b\u00e9n\u00e9vole de Bretagne vivante, grands connaisseurs de la flore de Bretagne. Aujourd\u2019hui, nous allons d\u00e9couvrir quelles esp\u00e8ces se cachent dans nos parcs de Bretagne. Envahissante ou non\u00a0? De chez nous, ou […]<\/p>\n","protected":false},"author":1,"featured_media":7754,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[21],"tags":[],"class_list":["post-7736","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pedagogie"],"yoast_head":"\nQui a envahi Saint-Yvi? 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