{"id":12938,"date":"2023-02-02T11:49:38","date_gmt":"2023-02-02T11:49:38","guid":{"rendered":"https:\/\/mousefreemarion.org\/evaluation-de-limpact-des-souris-domestiques-invasives-sur-la-reproduction-des-petrels-a-grandes-ailes-sur-lile-marion\/"},"modified":"2023-02-02T11:49:38","modified_gmt":"2023-02-02T11:49:38","slug":"evaluation-de-limpact-des-souris-domestiques-invasives-sur-la-reproduction-des-petrels-a-grandes-ailes-sur-lile-marion","status":"publish","type":"post","link":"https:\/\/mousefreemarion.org\/fr\/evaluation-de-limpact-des-souris-domestiques-invasives-sur-la-reproduction-des-petrels-a-grandes-ailes-sur-lile-marion\/","title":{"rendered":"\u00c9valuation de l&rsquo;impact des souris domestiques invasives sur la reproduction des p\u00e9trels \u00e0 grandes ailes sur l&rsquo;\u00eele Marion."},"content":{"rendered":"<p><em>Photo ci-dessus : Andile Mdluli, assistant ornithologique de terrain pour les oc\u00e9ans et les c\u00f4tes, d\u00e9ploie une cam\u00e9ra sur un terrier de p\u00e9trel \u00e0 grandes ailes, photo de Samuel Peta.<\/em><\/p>\n<p>La mortalit\u00e9 induite par les souris chez les oiseaux de mer se reproduisant sur l&rsquo;\u00eele Marion reste un probl\u00e8me de conservation important. Depuis son introduction accidentelle au d\u00e9but des ann\u00e9es 1800, la souris domestique invasive <em>Mus musculus<\/em> s&rsquo;est adapt\u00e9e aux conditions climatiques et s&rsquo;est rapidement r\u00e9pandue sur l&rsquo;\u00eele, mettant \u00e0 mal les communaut\u00e9s d&rsquo;invert\u00e9br\u00e9s terrestres et les populations d&rsquo;oiseaux marins. L&rsquo;\u00e9cosyst\u00e8me de l&rsquo;\u00eele n&rsquo;a jamais partag\u00e9 son histoire \u00e9volutive avec les souris ; ainsi, l&rsquo;impact de leurs pr\u00e9dateurs ne peut \u00eatre contrecarr\u00e9 car les esp\u00e8ces indig\u00e8nes n&rsquo;ont pas d\u00e9velopp\u00e9 de m\u00e9canismes de d\u00e9fense pour faire face aux attaques. Pour les oiseaux de mer, le probl\u00e8me est plus grave pour les poussins, qui sont plus vuln\u00e9rables aux attaques que les adultes.<\/p>\n<p>Les souris ont un r\u00e9gime alimentaire vari\u00e9 qui comprend des invert\u00e9br\u00e9s et des graines de gramin\u00e9es afin de tirer parti d&rsquo;un \u00e9ventail de sources de nourriture disponibles. La nature omnivore de leur r\u00e9gime alimentaire permet aux souris de faire face aux changements saisonniers dans l&rsquo;approvisionnement en invert\u00e9br\u00e9s en se tournant vers des proies alternatives telles que les poussins d&rsquo;oiseaux marins. \u00c9tant donn\u00e9 que la plupart des oiseaux de mer \u00e0 Marion se reproduisent en \u00e9t\u00e9, la pr\u00e9dation par les souris peut \u00eatre plus apparente \u00e0 cette p\u00e9riode. Cependant, les attaques de souris se produisent \u00e9galement chez les esp\u00e8ces qui se reproduisent en hiver, notamment le p\u00e9trel \u00e0 grandes ailes <em>Pterodroma macroptera<\/em> qui niche dans un terrier. En fait, les attaques de souris sur les oiseaux de mer sont plus fr\u00e9quentes en hiver en raison des quantit\u00e9s r\u00e9duites d&rsquo;autres aliments. L&rsquo;\u00eele Marion peut \u00eatre extr\u00eamement froide et venteuse, les terriers souterrains offrent donc une meilleure isolation contre les conditions difficiles. Des \u00e9tudes (par exemple, Dilley <em>et al<\/em>. 2017) ont montr\u00e9 les impacts n\u00e9fastes directs des souris sur les p\u00e9trels nichant dans des terriers, avec des mortalit\u00e9s importantes de poussins, entra\u00eenant des r\u00e9ductions du succ\u00e8s de la reproduction et un taux de r\u00e9cup\u00e9ration de la population stagnant apr\u00e8s l&rsquo;\u00e9radication des chats sauvages <em>Felis catus<\/em> dans les ann\u00e9es 1990. Ici, nous rapportons l&rsquo;impact de la pr\u00e9dation des souris sur les poussins des p\u00e9trels \u00e0 grandes ailes par le biais de comptes rendus d&rsquo;observation et d&rsquo;inspections au burrowscope.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-12530 size-fusion-400\" src=\"https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.53.36-PM-400x533.jpeg\" alt=\"\" width=\"400\" height=\"533\" srcset=\"https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.53.36-PM-200x267.jpeg 200w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.53.36-PM-225x300.jpeg 225w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.53.36-PM-400x533.jpeg 400w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.53.36-PM-500x667.jpeg 500w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.53.36-PM-600x800.jpeg 600w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.53.36-PM-700x933.jpeg 700w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.53.36-PM-768x1024.jpeg 768w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.53.36-PM-800x1067.jpeg 800w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.53.36-PM.jpeg 1125w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/p>\n<div id=\"attachment_12560\" style=\"width: 410px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" aria-describedby=\"caption-attachment-12560\" class=\"wp-image-12560 size-fusion-400\" src=\"https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.22-PM-400x300.jpeg\" alt=\"\" width=\"400\" height=\"300\" srcset=\"https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.22-PM-200x150.jpeg 200w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.22-PM-300x225.jpeg 300w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.22-PM-400x300.jpeg 400w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.22-PM-500x375.jpeg 500w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.22-PM-600x450.jpeg 600w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.22-PM-700x525.jpeg 700w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.22-PM-768x576.jpeg 768w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.22-PM-800x600.jpeg 800w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.22-PM-1024x768.jpeg 1024w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.22-PM-1200x900.jpeg 1200w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.22-PM.jpeg 1500w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><p id=\"caption-attachment-12560\" class=\"wp-caption-text\"><em>Un p\u00e9trel \u00e0 grandes ailes en train de couver (en haut) et son poussin (en bas) dans la colonie de surveillance de Nellie Humps sur l&rsquo;\u00eele Marion ; photos de Samuel Peta.<\/em><\/p><\/div>\n<p>Chaque ann\u00e9e, les assistants ornithologiques de terrain du D\u00e9partement des for\u00eats, de la p\u00eache et de l&rsquo;environnement (<strong><br \/>\n  <a href=\"https:\/\/www.dffe.gov.za\/\" target=\"_blank\" rel=\"noopener\">DFFE<\/a><br \/>\n<\/strong>) surveillent le contenu d&rsquo;un certain nombre de terriers de reproduction appartenant au p\u00e9trel \u00e0 grandes ailes qui se reproduit en hiver. En 2022, l&rsquo;\u00e9quipe d&rsquo;hivernage (Andile Mdluli et Samuel Peta) a pris les r\u00eanes de ce projet de suivi \u00e0 long terme pour comprendre l&rsquo;\u00e9cologie de la reproduction du p\u00e9trel \u00e0 grandes ailes et les impacts des souris sur leur succ\u00e8s de reproduction. Depuis le d\u00e9but de la surveillance cette ann\u00e9e, \u00e0 la mi-mai, 21 souris au total ont \u00e9t\u00e9 rep\u00e9r\u00e9es dans ou \u00e0 proximit\u00e9 de la colonie de surveillance de Nellie Humps. Cependant, ces observations opportunistes de souris n&rsquo;offrent que des preuves anecdotiques de leur impact sur le succ\u00e8s de la reproduction du p\u00e9trel \u00e0 grandes ailes. Pour compl\u00e9ter ces observations, nous avons d\u00e9ploy\u00e9 cette ann\u00e9e deux cam\u00e9ras \u00e0 l&rsquo;entr\u00e9e de deux terriers occup\u00e9s. Les cam\u00e9ras \u00e9taient r\u00e9gl\u00e9es en mode haute sensibilit\u00e9 pour d\u00e9tecter les souris entrant ou sortant des terriers.<\/p>\n<div id=\"attachment_12555\" style=\"width: 810px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" aria-describedby=\"caption-attachment-12555\" class=\"wp-image-12555 size-fusion-800\" src=\"https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.19-PM-800x600.jpeg\" alt=\"\" width=\"800\" height=\"600\" srcset=\"https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.19-PM-200x150.jpeg 200w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.19-PM-300x225.jpeg 300w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.19-PM-400x300.jpeg 400w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.19-PM-500x375.jpeg 500w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.19-PM-600x450.jpeg 600w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.19-PM-700x525.jpeg 700w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.19-PM-768x576.jpeg 768w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.19-PM-800x600.jpeg 800w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.19-PM-1024x768.jpeg 1024w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.19-PM-1200x900.jpeg 1200w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.19-PM.jpeg 1500w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><p id=\"caption-attachment-12555\" class=\"wp-caption-text\"><em>Andile Mdluli, assistant ornithologique de terrain pour les oc\u00e9ans et les c\u00f4tes, inspecte un terrier de p\u00e9trel \u00e0 grandes ailes \u00e0 l&rsquo;aide d&rsquo;un burrowscope, photo de Samuel Peta.<\/em><\/p><\/div>\n<div id=\"attachment_12520\" style=\"width: 610px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" aria-describedby=\"caption-attachment-12520\" class=\"wp-image-12520 size-fusion-600\" src=\"https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.01.54-PM-600x450.jpeg\" alt=\"\" width=\"600\" height=\"450\" srcset=\"https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.01.54-PM-200x150.jpeg 200w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.01.54-PM-300x225.jpeg 300w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.01.54-PM-400x300.jpeg 400w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.01.54-PM-500x375.jpeg 500w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.01.54-PM-600x450.jpeg 600w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.01.54-PM-700x525.jpeg 700w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.01.54-PM-768x576.jpeg 768w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.01.54-PM-800x600.jpeg 800w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.01.54-PM-1024x768.jpeg 1024w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.01.54-PM-1200x900.jpeg 1200w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.01.54-PM.jpeg 1500w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><p id=\"caption-attachment-12520\" class=\"wp-caption-text\"><em>Observ\u00e9 sur l&rsquo;\u00e9cran du burrowscope, cet adulte de p\u00e9trel \u00e0 grandes ailes est en train de couver, photo de Samuel Peta<\/em><\/p><\/div>\n<p>Un total de 6500 images du 15 ao\u00fbt au 19 septembre 2022 a \u00e9t\u00e9 analys\u00e9 pour la pr\u00e9sence de souris. Dans les deux terriers, les souris ont \u00e9t\u00e9 vues plusieurs fois sur les images de la cam\u00e9ra, la plupart des d\u00e9tections ayant eu lieu le jour et seulement quelques occurrences la nuit. Malheureusement, le nid qui avait le plus d&rsquo;activit\u00e9 de souris a \u00e9chou\u00e9 (voir l&rsquo;image burrowscope ci-dessous). L&rsquo;activit\u00e9 accrue des souris pendant la journ\u00e9e a r\u00e9v\u00e9l\u00e9 un sch\u00e9ma int\u00e9ressant pour les deux nids. Nous avons observ\u00e9 que les poussins sont souvent laiss\u00e9s seuls, les images des cam\u00e9ras ne montrant aucun mouvement des oiseaux adultes pendant la journ\u00e9e. Les souris semblent entrer, sortir ou s&rsquo;attarder autour des terriers le plus souvent entre 11h00 et 17h00. Bien que les p\u00e9trels \u00e0 grandes ailes aient une activit\u00e9 nocturne \u00e0 terre, nous avons constat\u00e9 que les adultes reproducteurs passent souvent du temps en mer la nuit. Pour les deux tentatives de reproduction, nous avons observ\u00e9 que les adultes retournent \u00e0 leur terrier apr\u00e8s 18h30, repartent peu apr\u00e8s et reviennent \u00e0 nouveau vers minuit ; ils repartent une seconde fois entre 03h00-05h00 (mais en notant que les oiseaux parents ne sont pas distinguables individuellement). Ces p\u00e9riodes sont cruciales pour comprendre les impacts des souris, en soulignant que les poussins de p\u00e9trels \u00e0 grandes ailes sont plus vuln\u00e9rables aux attaques pendant la journ\u00e9e, lorsque les oiseaux parents sont absents.<\/p>\n<div id=\"attachment_12575\" style=\"width: 610px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" aria-describedby=\"caption-attachment-12575\" class=\"size-fusion-600 wp-image-12575\" src=\"https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-11.52.55-AM-Copy-600x450.jpeg\" alt=\"\" width=\"600\" height=\"450\" srcset=\"https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-11.52.55-AM-Copy-200x150.jpeg 200w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-11.52.55-AM-Copy-300x225.jpeg 300w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-11.52.55-AM-Copy-400x300.jpeg 400w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-11.52.55-AM-Copy-500x375.jpeg 500w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-11.52.55-AM-Copy-600x450.jpeg 600w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-11.52.55-AM-Copy-700x525.jpeg 700w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-11.52.55-AM-Copy-768x576.jpeg 768w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-11.52.55-AM-Copy-800x600.jpeg 800w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-11.52.55-AM-Copy-1024x768.jpeg 1024w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-11.52.55-AM-Copy-1200x900.jpeg 1200w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-11.52.55-AM-Copy.jpeg 1280w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><p id=\"caption-attachment-12575\" class=\"wp-caption-text\"><em>Une souris p\u00e9n\u00e8tre dans le nid du terrier d&rsquo;un p\u00e9trel \u00e0 grandes ailes \u00e0 midi, le 16 ao\u00fbt 2022, photo de Samuel Peta.<\/em><\/p><\/div>\n<div id=\"attachment_12585\" style=\"width: 610px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" aria-describedby=\"caption-attachment-12585\" class=\"size-fusion-600 wp-image-12585\" src=\"https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-11.52.59-AM-Copy-600x450.jpeg\" alt=\"\" width=\"600\" height=\"450\" srcset=\"https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-11.52.59-AM-Copy-200x150.jpeg 200w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-11.52.59-AM-Copy-300x225.jpeg 300w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-11.52.59-AM-Copy-400x300.jpeg 400w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-11.52.59-AM-Copy-500x375.jpeg 500w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-11.52.59-AM-Copy-600x450.jpeg 600w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-11.52.59-AM-Copy-700x525.jpeg 700w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-11.52.59-AM-Copy-768x576.jpeg 768w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-11.52.59-AM-Copy-800x600.jpeg 800w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-11.52.59-AM-Copy-1024x768.jpeg 1024w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-11.52.59-AM-Copy-1200x900.jpeg 1200w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-11.52.59-AM-Copy.jpeg 1280w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><p id=\"caption-attachment-12585\" class=\"wp-caption-text\"><em>Une souris sort du terrier d&rsquo;un p\u00e9trel \u00e0 grandes ailes pendant la nuit, 06 septembre 2022, photo de Samuel Peta<\/em><\/p><\/div>\n<p>Les souris visitent occasionnellement les terriers la nuit, comme le montre l&rsquo;analyse des images. Cependant, \u00e0 deux occasions, des p\u00e9trels \u00e0 grandes ailes adultes ont \u00e9t\u00e9 observ\u00e9s en train de chasser les souris de leur terrier. il reste \u00e0 voir si les 12 seuls poussins survivants sur les 72 d&rsquo;origine r\u00e9ussiront \u00e0 s&rsquo;envoler.<\/p>\n<div id=\"attachment_12545\" style=\"width: 610px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" aria-describedby=\"caption-attachment-12545\" class=\"size-fusion-600 wp-image-12545\" src=\"https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.13-PM-600x450.jpeg\" alt=\"\" width=\"600\" height=\"450\" srcset=\"https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.13-PM-200x150.jpeg 200w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.13-PM-300x225.jpeg 300w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.13-PM-400x300.jpeg 400w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.13-PM-500x375.jpeg 500w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.13-PM-600x450.jpeg 600w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.13-PM-700x525.jpeg 700w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.13-PM-768x576.jpeg 768w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.13-PM-800x600.jpeg 800w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.13-PM-1024x768.jpeg 1024w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.13-PM-1200x900.jpeg 1200w, https:\/\/mousefreemarion.org\/wp-content\/uploads\/2023\/02\/WhatsApp-Image-2022-10-03-at-12.54.13-PM.jpeg 1500w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><p id=\"caption-attachment-12545\" class=\"wp-caption-text\"><em>Les restes d&rsquo;un poussin de p\u00e9trel \u00e0 grandes ailes ; une souris se nourrissait du corps jusqu&rsquo;\u00e0 ce qu&rsquo;elle soit d\u00e9rang\u00e9e par le burrowscope, photographie de Samuel Peta.<\/em><\/p><\/div>\n<p>&nbsp;<\/p>\n<p>Pour mettre un terme au carnage horrible inflig\u00e9 par les souris domestiques aux p\u00e9trels \u00e0 grandes ailes sur l&rsquo;\u00eele Marion, l&rsquo;\u00e9radication des souris est une action n\u00e9cessaire. Les r\u00e9sultats pr\u00e9sent\u00e9s ici fournissent des preuves suppl\u00e9mentaires de la situation d\u00e9sastreuse des oiseaux de mer qui nichent sur l&rsquo;\u00eele Marion et du besoin urgent d&rsquo;une intervention d&rsquo;\u00e9radication des souris.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>R\u00e9f\u00e9rence :<\/strong><\/p>\n<p>Dilley, B.J., Schoombie, S., Stevens, K., Davies, D., Perold, V., Osborne, A., Schoombie, J., Brink, C.W., Carpenter-Kling, T. &amp; Ryan, P.G. 2018. La pr\u00e9dation par les souris affecte le succ\u00e8s de la reproduction des p\u00e9trels nichant dans des terriers sur l&rsquo;\u00eele subantarctique de Marion. <strong><br \/>\n  <a href=\"https:\/\/www.cambridge.org\/core\/journals\/antarctic-science\/article\/abs\/mouse-predation-affects-breeding-success-of-burrownesting-petrels-at-subantarctic-marion-island\/738188E74C0785B51AAA6438FD9F3FB0\" target=\"_blank\" rel=\"noopener\"><em>Antarctic Science <\/em>30 : 93-104<\/a><br \/>\n<\/strong>.<\/p>\n<p>&nbsp;<\/p>\n<p><em>Samuel Peta, Andile Mdluli, Makhudu Masotla &amp; Azwianewi Makhado, D\u00e9partement des for\u00eats, de la p\u00eache et de l&rsquo;environnement, Le Cap, Afrique du Sud, 02 f\u00e9vrier 2023<\/em><\/p>\n<p>*********************************************************************************************<\/p>\n<p>Le Mouse-Free Marion Project est une soci\u00e9t\u00e9 \u00e0 but non lucratif enregistr\u00e9e (n\u00b0 2020\/922433\/08) en Afrique du Sud, cr\u00e9\u00e9e pour \u00e9radiquer les souris envahissantes tueuses d&rsquo;albatros sur l&rsquo;\u00eele Marion dans l&rsquo;oc\u00e9an Austral. Le projet a \u00e9t\u00e9 lanc\u00e9 par <strong><br \/>\n  <a href=\"https:\/\/www.birdlife.org.za\/\" target=\"_blank\" rel=\"noopener\">BirdLife Afrique du Sud<\/a><br \/>\n<\/strong> et le minist\u00e8re sud-africain <strong><br \/>\n  <a href=\"https:\/\/www.dffe.gov.za\/\" target=\"_blank\" rel=\"noopener\">D\u00e9partement des for\u00eats, de la p\u00eache et de l&rsquo;environnement<\/a><br \/>\n<\/strong>. Une fois achev\u00e9, le projet permettra de restaurer l&rsquo;habitat de reproduction essentiel de plus de deux millions d&rsquo;oiseaux marins, dont beaucoup sont menac\u00e9s au niveau mondial, et d&rsquo;am\u00e9liorer la r\u00e9silience de l&rsquo;\u00eele face au r\u00e9chauffement climatique. Pour plus d&rsquo;informations ou pour soutenir le projet, veuillez consulter le site suivant <strong><br \/>\n  <a href=\"http:\/\/mousefreemarion.org\/\" target=\"_blank\" rel=\"noopener\">mousefreemarion.org<\/a><br \/>\n<\/strong>.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Photo ci-dessus : Andile Mdluli, assistant ornithologique de terrain pour  [&#8230;]<\/p>\n","protected":false},"author":1,"featured_media":12571,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[55],"tags":[],"class_list":["post-12938","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-classifiee"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u00c9valuation de l&#039;impact des souris domestiques invasives sur la reproduction des p\u00e9trels \u00e0 grandes ailes sur l&#039;\u00eele Marion. - 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