{"id":3598,"date":"2016-03-17T09:31:03","date_gmt":"2016-03-17T14:31:03","guid":{"rendered":"https:\/\/wildlifepreservation.ca\/?page_id=3598"},"modified":"2016-11-21T13:44:56","modified_gmt":"2016-11-21T18:44:56","slug":"le-damier-de-taylor","status":"publish","type":"post","link":"https:\/\/wildlifepreservation.ca\/fr\/le-damier-de-taylor\/","title":{"rendered":"Le damier de Taylor"},"content":{"rendered":"

[et_pb_section admin_label=\u00a0\u00bbsection\u00a0\u00bb][et_pb_row admin_label=\u00a0\u00bbRow\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4″][et_pb_text admin_label=\u00a0\u00bbText\u00a0\u00bb background_layout=\u00a0\u00bblight\u00a0\u00bb text_orientation=\u00a0\u00bbleft\u00a0\u00bb use_border_color=\u00a0\u00bboff\u00a0\u00bb border_color=\u00a0\u00bb#ffffff\u00a0\u00bb border_style=\u00a0\u00bbsolid\u00a0\u00bb]<\/p>\n

Euphydryas editha taylori<\/em>
\nStatut de l\u2019esp\u00e8ce :<\/strong> en voie de disparition au Canada
\nMesures requises : <\/strong>initiatives de reproduction, de r\u00e9introduction et d\u2019augmentation de la population \u00e0 des fins de conservation<\/p>\n

Au fur et \u00e0 mesure que les prairies indig\u00e8nes disparaissent au profit de l\u2019agriculture et de projets de d\u00e9veloppement, la survie du damier de Taylor tient \u00e0 un fil.<\/p>\n

Aper\u00e7u
\n<\/strong>\u00c9tant sensible aux changements survenant dans son habitat, le damier est consid\u00e9r\u00e9 comme une esp\u00e8ce cl\u00e9, notamment un indicateur environnemental de l\u2019\u00e9tat de sant\u00e9 de tout l\u2019\u00e9cosyst\u00e8me. De l\u2019esp\u00e8ce euphydryas editha<\/em>, le damier de Taylor, dont l\u2019envergure d\u2019ailes est de moins de six centim\u00e8tres, est la sous-esp\u00e8ce \u00e0 la couleur la plus fonc\u00e9e. Les adultes \u00e9mergent en avril et en mai, la p\u00e9riode d\u2019accouplement, et les groupes d\u2019\u0153ufs peuvent contenir jusqu\u2019\u00e0 1\u00a0200 \u0153ufs. Les larves \u00e9mergentes interrompent leur d\u00e9veloppement de la mi-juin au d\u00e9but juillet et hibernent durant l\u2019hiver.<\/p>\n

Habitat
\n<\/strong>Le damier de Taylor n\u00e9cessite un environnement de praires ouvertes ayant peu de v\u00e9g\u00e9tation et des conditions humides qui soutiennent les sources de nourriture dont les larves ont besoin, telles la v\u00e9ronique \u00e0 \u00e9cus, la v\u00e9ronique \u00e0 feuille de serpolet ou le plantain (esp\u00e8ce introduite). L\u2019habitat doit aussi contenir des fleurs sauvages nectarif\u00e8res, comme les fraises sauvages, pour que les adultes puissent se nourrir. Ces conditions sont souvent pr\u00e9sentes dans les \u00e9cosyst\u00e8mes de ch\u00eanaies de Garry (maintenant rares). Par ailleurs, des populations de damiers ont aussi \u00e9t\u00e9 recens\u00e9es dans certaines aires d\u00e9gag\u00e9es par l\u2019activit\u00e9 humaine.<\/p>\n

Aire de r\u00e9partition
\n<\/strong>Le damier de Taylor \u00e9tait jadis une esp\u00e8ce r\u00e9pandue dans les \u00eeles de San Juan, au sud de l\u2019\u00eele de Vancouver, et dans les \u00eeles environnantes de la Colombie-Britannique, ainsi que dans les prairies c\u00f4ti\u00e8res et \u00e0 l\u2019int\u00e9rieur des terres, dans les prairies ouvertes et dans les plaines d\u2019\u00e9pandage graveleux de Puget Sound, dans les \u00e9tats du Washington et de l\u2019Oregon. L\u2019esp\u00e8ce \u00e9tait estim\u00e9e disparue au Canada depuis 2005, mais 15 damiers de Taylor ont \u00e9t\u00e9 observ\u00e9s sur l\u2019\u00eele de Denman, dans les Gulf Islands, en C.-B. Selon une \u00e9tude, il existe seulement 14 sites dans la r\u00e9gion nord-ouest du Pacifique dot\u00e9s de populations de plus de 50 individus.<\/p>\n

Menaces
\n<\/strong>Les prairies indig\u00e8nes, particuli\u00e8rement appr\u00e9ci\u00e9es de ces papillons, sont menac\u00e9es par l\u2019activit\u00e9 agricole, l\u2019\u00e9talement urbain et l\u2019empi\u00e8tement des arbres et des plantes envahissantes. Ant\u00e9rieurement, la r\u00e9gion occidentale du Washington comptait \u00e0 elle seule 100\u00a0000 hectares d\u2019habitat. Aujourd\u2019hui, il n\u2019en reste que quelques hectares. Les pesticides, la suppression des incendies et la s\u00e9cheresse menacent aussi l\u2019esp\u00e8ce.<\/p>\n

Actions recommand\u00e9es pour le r\u00e9tablissement de l\u2019esp\u00e8ce<\/strong>
\nLe programme f\u00e9d\u00e9ral de r\u00e9tablissement multi-esp\u00e8ces des ch\u00eanaies de Garry recommande plusieurs mesures de conservation qui favoriseront le r\u00e9tablissement du damier de Taylor, y compris la protection des habitats, le recensement des plantes dont il s\u2019alimente et la mise au point de techniques d\u2019\u00e9tablissement de nouvelles populations.<\/p>\n

Ce que nous faisons
\n<\/strong>Informez-vous de ce que Conservation de la faune au Canada fait pour sauver les pollinisateurs indig\u00e8nes<\/a>\u00a0\u2013 dont le damier de Taylor \u2013 et des gestes que vous pouvez poser pour contribuer \u00e0 cet effort.<\/p>\n

Pour plus d\u2019information
\n<\/strong>Registre public des esp\u00e8ces en p\u00e9ril, damier de Taylor
\n<\/a>Garry Oak Ecosystem Recovery Team<\/a> (en anglais)<\/p>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"

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