{"id":15846,"date":"2020-06-26T13:20:00","date_gmt":"2020-06-26T11:20:00","guid":{"rendered":"https:\/\/almanimal.com\/?p=15846"},"modified":"2020-06-26T13:49:40","modified_gmt":"2020-06-26T11:49:40","slug":"toxicite-et-dangerosite-de-la-veuve-noire","status":"publish","type":"post","link":"https:\/\/almanimal.com\/fr\/terrariums\/arthropodes\/toxicite-et-dangerosite-de-la-veuve-noire\/","title":{"rendered":"Veuve noire Quel est son habitat, sa taille, sa toxicit\u00e9 et son danger ?"},"content":{"rendered":"<p>Avez-vous peur de la <a href=\"https:\/\/almanimal.com\/fr\/terrariums\/arthropodes\/les-araignees-les-plus-meurtrieres\/\">araign\u00e9es <\/a>ou vous \u00eates passionn\u00e9 ? Pour tout savoir sur la <strong>veuve noire<\/strong>un sp\u00e9cimen fascinant et venimeux que l'on trouve dans de nombreuses r\u00e9gions du monde. Ne vous inqui\u00e9tez pas, son venin n'est pas mortel. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Voici \u00e0 quoi ressemble la veuve noire<\/h2>\n\n\n\n<p>Le<strong> veuve noire<\/strong> est un <a href=\"https:\/\/almanimal.com\/fr\/curiosites\/mante-religieuse-ce-que-vous-devez-savoir\/\">arthropode<\/a> du genre <strong><em>Latrodectus<\/em> de la famille <em>Theridiidae.<\/em><\/strong><em> <\/em>Elle est ainsi nomm\u00e9e parce que, chez certaines esp\u00e8ces,<strong> Les femelles d\u00e9vorent g\u00e9n\u00e9ralement le m\u00e2le apr\u00e8s l'accouplement. <\/strong>Dans la culture populaire, ce nom est tr\u00e8s c\u00e9l\u00e8bre. Il a \u00e9t\u00e9 port\u00e9 par un personnage de bande dessin\u00e9e Marvel, un trafiquant de drogue colombien et m\u00eame une voiture de course Chevrolet. <\/p>\n\n\n\n<p>La femme de <strong>veuve noire<\/strong> est tr\u00e8s caract\u00e9ristique de par sa couleur noire brillante et <strong>une marque rouge en forme de <a aria-label=\"non d\u00e9fini (s&#039;ouvre dans un nouvel onglet)\" href=\"https:\/\/www.britannica.com\/animal\/black-widow-spider\" target=\"_blank\" rel=\"noreferrer noopener\">sablier<\/a> dans le bas-ventre. <\/strong>Il s'agit du sp\u00e9cimen le plus connu, mais <strong>Il existe environ 31 esp\u00e8ces de veuves noires dans le monde.<\/strong> et ils ne sont pas tous identiques. Par exemple, dans notre pays, nous avons le <strong><em>Latrodectus lilianae<\/em>, <\/strong>originaire d'Espagne et du Portugal. Cette esp\u00e8ce ne poss\u00e8de pas de sablier, mais de petites marques blanches et orange sur l'abdomen. <\/p>\n\n\n\n<p>Dans le cas des m\u00e2les, ils ne sont pas tous noirs, il y en a aussi des bruns ou des gris et ils ont de petites taches ou des anneaux rouges ou blancs sur le corps.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1000\" height=\"664\" src=\"https:\/\/almanimal.com\/wp-content\/uploads\/2020\/06\/ara\u00f1a-viuda-negra.jpg-1000x664.jpg\" alt=\"La veuve noire construit sa toile pr\u00e8s du sol\" class=\"wp-image-15848\"\/><\/figure><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Habitat<\/h3>\n\n\n\n<p>Nous avons mentionn\u00e9 qu'il existe diff\u00e9rentes araign\u00e9es de cette esp\u00e8ce dans le monde entier. En pratique, les <strong>veuve noire<\/strong> est pr\u00e9sent dans le monde entier. <strong>Il est commun dans les zones climatiques temp\u00e9r\u00e9es.<\/strong> Ils sont plus pr\u00e9sents aux \u00c9tats-Unis et en Am\u00e9rique du Sud, car c'est l\u00e0 qu'ils \"coexistent\" le plus avec les humains. <\/p>\n\n\n\n<p>En g\u00e9n\u00e9ral, ils ont tendance \u00e0 vivre dans des endroits o\u00f9 ils peuvent se r\u00e9fugier ou se cacher. Par exemple, sous des pierres lorsqu'ils sont \u00e0 l'ext\u00e9rieur et, en cas d'intrusion dans une maison, ils recherchent des endroits secs et sombres o\u00f9 ils ne peuvent pas \u00eatre trouv\u00e9s : derri\u00e8re un rideau ou dans de petits espaces o\u00f9 il n'y a pas beaucoup de lumi\u00e8re.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Taille<\/h3>\n\n\n\n<p>Une copie de <strong>La veuve noire p\u00e8se environ 1 gramme et peut mesurer jusqu'\u00e0 5 centim\u00e8tres de long, pattes comprises, et 6,4 centim\u00e8tres de diam\u00e8tre.<\/strong> Le m\u00e2le, quant \u00e0 lui, est beaucoup plus petit que la femelle, \u00e0 peine la moiti\u00e9 de sa taille.<\/p>\n\n\n\n<p>Le<strong> La veuve noire peut vivre entre 1 et 3 ans. <\/strong>Le m\u00e2le ne vit g\u00e9n\u00e9ralement que quelques mois car, comme nous l'avons d\u00e9j\u00e0 mentionn\u00e9, il est mang\u00e9 apr\u00e8s le rituel d'accouplement (qui a lieu vers la fin du printemps).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Toxicit\u00e9<\/h3>\n\n\n\n<p>Cette esp\u00e8ce est tr\u00e8s redout\u00e9e car on pense que son venin peut \u00eatre mortel. Cette croyance est quelque peu erron\u00e9e. Il est vrai que des frayeurs consid\u00e9rables peuvent survenir, surtout si les victimes sont des enfants. <strong>les enfants, les personnes \u00e2g\u00e9es et les malades, <\/strong>mais il est tr\u00e8s rare que la personne d\u00e9c\u00e8de. L'exp\u00e9rience n'est certainement pas agr\u00e9able. Si l'une de ces araign\u00e9es vous mord, <strong>nous vous recommandons de consulter un m\u00e9decin de toute urgence. <\/strong><\/p>\n\n\n\n<p>Voici les sympt\u00f4mes les plus courants apr\u00e8s une piq\u00fbre :<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>douleur, gonflement et rougeur de la zone (sympt\u00f4mes imm\u00e9diats)<\/li><li>Douleur thoracique et abdominale et raideur des muscles de cette r\u00e9gion du corps (sympt\u00f4mes graves qui peuvent appara\u00eetre imm\u00e9diatement ou dans les 15 minutes).<\/li><li>D'autres sympt\u00f4mes peuvent appara\u00eetre : essoufflement, maux de t\u00eate, augmentation de la pression art\u00e9rielle, transpiration, faiblesse et fi\u00e8vre.<\/li><\/ul>\n\n\n\n<p>Dans le cadre de la <strong>les cas plus graves et inhabituels,<\/strong> des convulsions et la mort surviennent. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Danger<\/h3>\n\n\n\n<p>Ces araign\u00e9es <strong>n'attaquent g\u00e9n\u00e9ralement pas les gens<\/strong>. Ils ne font que se d\u00e9fendre, comme les <a href=\"https:\/\/almanimal.com\/fr\/curiosites\/faits-amusants-sur-les-abeilles\/\">abeilles<\/a>si elles se sentent menac\u00e9es. Par exemple, si vous vous asseyez accidentellement sur une araign\u00e9e qui se cache dans l'endroit que vous avez choisi. Ou si tu poses ta main sur le mur et que tu ne te rends pas compte que l'araign\u00e9e \u00e9tait l\u00e0 en premier. Ou encore, lorsque vous faites le m\u00e9nage et que vous en trouvez une sur les rideaux de la maison. <strong>La meilleure chose \u00e0 faire est de ne pas les d\u00e9ranger et de les laisser tranquilles.<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Alimentation et reproduction<\/h3>\n\n\n\n<p>De quoi se nourrit cette araign\u00e9e particuli\u00e8re ? Voyons ce qu'il en est. Cet arthropode est <strong>ovipare<\/strong>. Elle se nourrit d'une grande vari\u00e9t\u00e9 d'insectes : mouches, cafards, col\u00e9opt\u00e8res, fourmis... Le m\u00e9canisme d'alimentation de la veuve noire est particulier : elle tisse ses filets \u00e0 basse altitude pour attirer ses victimes et attend patiemment, suspendue la t\u00eate en bas. Une fois qu'elles ont r\u00e9ussi \u00e0 attirer leur proie, elles <strong>Elles injectent un venin paralysant et, \u00e0 l'aide de leurs pattes couvertes de minuscules poils, elles tissent de la soie autour du corps de ce qu'elles ont attrap\u00e9.<\/strong><\/p>\n\n\n\n<p>Une fois la proie captive dans la toile d'araign\u00e9e, elle proc\u00e8de \u00e0 l'injection d'une substance active. <strong>enzyme et liqu\u00e9fie, avec ses crocs, <\/strong>petit \u00e0 petit, le corps de l'insecte \u00e0 ing\u00e9rer le liquide r\u00e9sultant de ce \"barattage\". Gr\u00e2ce \u00e0 ce processus <strong>une araign\u00e9e peut rester des mois sans manger. <\/strong><\/p>\n\n\n\n<p>La reproduction a g\u00e9n\u00e9ralement lieu pendant les mois d'\u00e9t\u00e9. Apr\u00e8s le rituel \"sanglant\" au cours duquel le m\u00e2le meurt, l'araign\u00e9e cr\u00e9e des sacs d'\u0153ufs. Ces sacs sont suspendus dans la toile et peuvent contenir de<strong> 250 \u00e0 750 \u0153ufs ! <\/strong>Les \"petits\" \u00e9closent entre les mois d'ao\u00fbt et de novembre. <strong>14 et 30 jours plus tard. <\/strong>Tr\u00e8s peu atteignent l'\u00e2ge adulte. <\/p>","protected":false},"excerpt":{"rendered":"<p>\u00bfTienes miedo a las ara\u00f1as o eres un apasionado de ellas? Descubre todo acerca de la viuda negra, un fascinante y venenoso esp\u00e9cimen presente en muchos lugares del planeta. Tranquilo, su veneno no es mortal. As\u00ed es la viuda negra La viuda negra es un artr\u00f3podo del g\u00e9nero Latrodectus de la familia Theridiidae. Recibe este &#8230; <a title=\"Veuve noire Quel est son habitat, sa taille, sa toxicit\u00e9 et son danger ?\" class=\"read-more\" href=\"https:\/\/almanimal.com\/fr\/terrariums\/arthropodes\/toxicite-et-dangerosite-de-la-veuve-noire\/\" aria-label=\"Apprenez-en plus sur la Veuve Noire : quel est son habitat, sa taille, sa toxicit\u00e9 et son danger ?\">Lire la suite<\/a><\/p>","protected":false},"author":20,"featured_media":15847,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1445],"tags":[1646,1890,1546,1516,2082],"class_list":["post-15846","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-artropodos","tag-aranas","tag-aranas-venenosas","tag-artropodos","tag-terrarios","tag-viuda-negra"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Viuda Negra \u00bfCu\u00e1l es su h\u00e1bitat, tama\u00f1o, toxicidad y peligrosidad?<\/title>\n<meta name=\"description\" content=\"\u00bfTe gustan las ara\u00f1as o eres m\u00e1s de los que les temen? 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