{"id":52701,"date":"2026-04-22T10:05:16","date_gmt":"2026-04-22T15:05:16","guid":{"rendered":"https:\/\/wildlifepreservation.ca\/?p=52701"},"modified":"2026-04-28T12:37:50","modified_gmt":"2026-04-28T17:37:50","slug":"frog-detective-on-the-case","status":"publish","type":"post","link":"https:\/\/wildlifepreservation.ca\/fr\/blog\/frog-detective-on-the-case\/","title":{"rendered":"Enqu\u00eate sur les grenouilles"},"content":{"rendered":"<div id='av_section_1'  class='avia-section av-fc4yehp-868fe15096cfd2d2be5312a9cd44c8b2 main_color avia-section-default avia-no-border-styling  avia-builder-el-0  el_before_av_section  avia-builder-el-first  blog-inner avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><main  role=\"main\" itemprop=\"mainContentOfPage\"  class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-52701'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1i7yrgd-a66bab2457b2d4a9c2e61c1f2afc4501\">\n.avia-image-container.av-1i7yrgd-a66bab2457b2d4a9c2e61c1f2afc4501 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-1i7yrgd-a66bab2457b2d4a9c2e61c1f2afc4501 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-1i7yrgd-a66bab2457b2d4a9c2e61c1f2afc4501 av-styling- avia-align-center  avia-builder-el-1  el_before_av_heading  avia-builder-el-first  inner-blog-banner-full-width-img'   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img fetchpriority=\"high\" class='wp-image-52724 avia-img-lazy-loading-not-52724 avia_image' src='https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/04\/FrogDetectiveBlog_JoelleWithEquipment_AGielens.jpg' alt='Joelle sits on her knees at the release site with her research equipment and Tupperwares of tadpoles.' title='GrenouilleD\u00e9tectiveBlog_JoelleAvec\u00c9quipement_AGielens'  height=\"738\" width=\"1019\"  itemprop=\"thumbnailUrl\"  \/><\/div><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-mo7jjlad-bd5a3aa7395c9e41f1ece0119b8371a4\">\n#top .av-special-heading.av-mo7jjlad-bd5a3aa7395c9e41f1ece0119b8371a4{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-mo7jjlad-bd5a3aa7395c9e41f1ece0119b8371a4 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-mo7jjlad-bd5a3aa7395c9e41f1ece0119b8371a4 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-mo7jjlad-bd5a3aa7395c9e41f1ece0119b8371a4 av-special-heading-h1 blockquote modern-quote modern-centered  avia-builder-el-2  el_after_av_image  el_before_av_post_metadata'><h1 class='av-special-heading-tag'  itemprop=\"headline\"  >Inspecteur grenouille sur le coup<\/h1><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-ejeflr1-1fb4b1d95c5aad3ec09f6c560d3ab506\">\n#top .av-post-metadata-container.av-ejeflr1-1fb4b1d95c5aad3ec09f6c560d3ab506{\nfont-size:16px;\n}\n#top .av-post-metadata-container.av-ejeflr1-1fb4b1d95c5aad3ec09f6c560d3ab506 .av-post-metadata-container-inner{\nfont-size:16px;\n}\n<\/style>\n<div  class='av-post-metadata-container av-ejeflr1-1fb4b1d95c5aad3ec09f6c560d3ab506 av-metadata-container-align-left  avia-builder-el-3  el_after_av_heading  avia-builder-el-last  av-metadata-container-1'><div class='av-post-metadata-container-inner'><span class=\"av-post-metadata-content av-post-metadata-meta-content\"><span class=\"av-post-metadata-content av-post-metadata-published\"><span class=\"av-metadata-before av-metadata-before-published\">Publi\u00e9 le<\/span><span class=\"av-post-metadata-published-date\" >22 avril 2026<\/span><\/span><span class=\"av-post-metadata-content av-post-metadata-separator\"><\/span><span class=\"av-post-metadata-content av-post-metadata-author\"  itemprop=\"author\" ><span class=\"av-metadata-before av-metadata-before-author\">par<\/span><span class=\"av-post-metadata-author-name\" >Conservation de la faune au Canada<\/span><\/span><span class=\"av-post-metadata-content av-post-metadata-separator\"><\/span><span class=\"av-post-metadata-content av-post-metadata-category\"><span class=\"av-metadata-before av-metadata-before-categories\">|<\/span><span class=\"av-post-metadata-category-link\" ><a href=\"https:\/\/wildlifepreservation.ca\/fr\/blog\/project\/fraser-valley-wetlands\/\" >Les zones humides de la vall\u00e9e Fraser<\/a><\/span>, <span class=\"av-post-metadata-category-link\" ><a href=\"https:\/\/wildlifepreservation.ca\/fr\/blog\/category\/news-and-events\/\" >Actualit\u00e9s et \u00e9v\u00e9nements<\/a><\/span>, <span class=\"av-post-metadata-category-link\" ><a href=\"https:\/\/wildlifepreservation.ca\/fr\/blog\/category\/oregon_spotted_frog\/\" >Grenouille macul\u00e9e de l'Oregon<\/a><\/span>, <span class=\"av-post-metadata-category-link\" ><a href=\"https:\/\/wildlifepreservation.ca\/fr\/species\/oregon-spotted-frog-program\/\" >Grenouille macul\u00e9e de l'Oregon<\/a><\/span><\/span><\/span><span class=\"av-post-metadata-content av-post-metadata-after-meta\">Photo par A. Gielens.<\/span><\/div><\/div>\n\n<\/div><\/div><\/main><!-- close content main element --><\/div><\/div><div id='av_section_2'  class='avia-section av-clztrb1-10566ca64593dec7bdd3794998cef0a1 main_color avia-section-default avia-no-border-styling  avia-builder-el-4  el_after_av_section  el_before_av_section  species-inner-content-intro-wrapper avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-52701'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-c6m8x19-8ec88a1f26c16f8009e2ab2f4fa4fea7\">\n.flex_column.av-c6m8x19-8ec88a1f26c16f8009e2ab2f4fa4fea7{\npadding:25px 25px 25px 25px;\nbackground-color:#f8fbf4;\n}\n<\/style>\n<div  class='flex_column av-c6m8x19-8ec88a1f26c16f8009e2ab2f4fa4fea7 av_one_full  avia-builder-el-5  el_before_av_one_full  avia-builder-el-first  light-section first flex_column_div'     ><section  class='av_textblock_section av-mo7jkaox-f3d04e2eb8ae213ce974be5654bc86b6'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p><strong>Qu'est-ce que le Programme de r\u00e9tablissement de la grenouille macul\u00e9e de l'Oregon ?<\/strong> Depuis 2010, CFC \u00e9l\u00e8ve la grenouille macul\u00e9e de l'Oregon, une esp\u00e8ce menac\u00e9e, au Zoo du Grand Vancouver et r\u00e9introduit des milliers de t\u00eatards et de jeunes grenouilles dans des zones humides de la vall\u00e9e du Fraser en Colombie-Britannique. Il faut des ann\u00e9es d'observation attentive, de collaboration, d'ing\u00e9niosit\u00e9 et parfois un peu de chance pour percer le code de reproduction d'esp\u00e8ces sp\u00e9cifiques. Pendant plusieurs ann\u00e9es, nos progr\u00e8s ont \u00e9t\u00e9 tr\u00e8s limit\u00e9s, mais notre \u00e9quipe a pers\u00e9v\u00e9r\u00e9. Aujourd'hui, la CFC a remis en libert\u00e9 plus de 64 000 t\u00eatards, de jeunes grenouilles et d'\u0153ufs dans la nature. Nous sommes en train de renverser la tendance pour cette esp\u00e8ce.<\/p>\n<\/div><\/section><\/div><div  class='flex_column av-boi6zb1-4e41cdf007d59007ec9b5de9b17acdbc av_one_full  avia-builder-el-7  el_after_av_one_full  el_before_av_one_full  first flex_column_div  column-top-margin'     ><section  class='av_textblock_section av-bg9xoot-e5fdf87e497eeadba28627434e922a8a'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p><span style=\"font-weight: 400;\">Le programme d'\u00e9levage de conservation de la grenouille macul\u00e9e de l'Oregon de Conservation de la faune au Canada a permis de rel\u00e2cher des milliers de t\u00eatards et de juv\u00e9niles dans la nature depuis le d\u00e9but du programme en 2010 : 64 523 pour \u00eatre exact. Chaque saison de reproduction, nous commen\u00e7ons avec une population modeste d'\u00e9levage de conservation, cette ann\u00e9e nous avons 30 femelles et <\/span><span style=\"font-weight: 400;\">68 m\u00e2les<\/span><span style=\"font-weight: 400;\">. Comme toujours apr\u00e8s avoir pass\u00e9 l'hiver s\u00e9par\u00e9s, les femelles et les m\u00e2les se retrouvent dans les bassins d'accouplement des femelles au printemps, s'alignant avec le d\u00e9but de la reproduction dans la nature.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Bien que ce programme ait connu beaucoup de succ\u00e8s depuis sa cr\u00e9ation, l'\u00e9quipe de r\u00e9tablissement de la grenouille macul\u00e9e de l'Oregon cherche toujours \u00e0 am\u00e9liorer notre succ\u00e8s\u2026 C'est pour cette raison que CFC travaille avec moi, <strong>une \u00e9tudiante dipl\u00f4m\u00e9e, Joelle Krol, pour \u00e9tudier de nouvelles m\u00e9thodes pour le programme !\u00a0<\/strong><\/span><\/p>\n<\/div><\/section><\/div><div  class='flex_column av-az4ew1p-f75f4230882bbbe5b10d2630fe4b3eac av_one_full  avia-builder-el-9  el_after_av_one_full  el_before_av_one_full  first flex_column_div  column-top-margin'     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-ah5f4yl-de48f64a921fe2be51f5933c851e791a\">\n.avia-image-container.av-ah5f4yl-de48f64a921fe2be51f5933c851e791a img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-ah5f4yl-de48f64a921fe2be51f5933c851e791a .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-ah5f4yl-de48f64a921fe2be51f5933c851e791a av-styling- avia-align-center  avia-builder-el-10  el_before_av_hr  avia-builder-el-first'   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img fetchpriority=\"high\" class='wp-image-52705 avia-img-lazy-loading-not-52705 avia_image' src='https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/04\/FrogDetectiveBlog_JoelleandFrog_JKrol.jpg' alt='' title='FrogDetectiveBlog_JoelleetGrenouille_JKrol'  height=\"738\" width=\"1019\"  itemprop=\"thumbnailUrl\"  \/><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-z0hxh9-d67b6d749d68e5e4b673469ba7a7502b\">\n#top .hr.hr-invisible.av-z0hxh9-d67b6d749d68e5e4b673469ba7a7502b{\nheight:15px;\n}\n<\/style>\n<div  class='hr av-z0hxh9-d67b6d749d68e5e4b673469ba7a7502b hr-invisible  avia-builder-el-11  el_after_av_image  el_before_av_textblock'><span class='hr-inner'><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<section  class='av_textblock_section av-99f0gv1-099fcb1f0e54b30140c252017af216bb'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p><i><span style=\"font-weight: 400;\">Joelle Krol tient dans ses mains une grenouille macul\u00e9e de l'Oregon, sur l'un des sites de rel\u00e2chage.\u00a0<\/span><\/i><\/p>\n<\/div><\/section><\/p><\/div><div  class='flex_column av-wmad31-7eaf1c1cbf40f0f130e7fb619b158f46 av_one_full  avia-builder-el-13  el_after_av_one_full  el_before_av_one_full  first flex_column_div  column-top-margin'     ><section  class='av_textblock_section av-8jlr3vh-65bd96a4970e6800fd4f6080ec11ac68'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p><span style=\"font-weight: 400;\">Nous savons d\u00e9j\u00e0 qu'il y a des tonnes de conditions ou de facteurs environnementaux qui impactent le d\u00e9veloppement des grenouilles dans la nature comme la pr\u00e9dation, les temp\u00e9ratures froides, les vents extr\u00eames, les inondations et m\u00eame la s\u00e9cheresse (pour n'en nommer que quelques-uns), mais c'est difficile d\u2019isoler chacune de ces conditions, et de plus, nous ne souhaitons pas exposer les masses d\u2019\u0153ufs d\u2019une esp\u00e8ce de grenouille menac\u00e9e \u00e0 l'une de ces conditions. Ces grenouilles ont d\u00e9j\u00e0 beaucoup d'obstacles \u00e0 surmonter dans la nature, avec un taux de survie d'environ 11 % (de l'embryon fra\u00eechement pondu jusqu'\u00e0 l'adulte reproducteur dans la nature). Le programme d'\u00e9levage contribue \u00e0 augmenter ce taux de survie, mais <strong>nous visons toujours une survie plus \u00e9lev\u00e9e !<\/strong><\/span><\/p>\n<p><span style=\"font-weight: 400;\">Un d\u00e9fi pour tout programme d'\u00e9levage de conservation est la transition de la captivit\u00e9 \u00e0 la vie sauvage. CFC poss\u00e8de des milliers de ces t\u00eatards et jeunes grenouilles qui n'ont connu que les soins humains, \u00e9tant n\u00e9s et \u00e9lev\u00e9s au Conservation Corner, situ\u00e9 au Zoo du Grand Vancouver. Bien que l'\u00e9quipe travaille pour assurer que cette transition soit aussi fluide que possible (acclimatant les t\u00eatards et les juv\u00e9niles \u00e0 leur nouveau foyer dans la nature), la transition peut toujours \u00eatre stressante. <strong>Cela nous am\u00e8ne \u00e0 une question que nous nous posons :<\/strong><\/span><strong><i> la survie des grenouilles macul\u00e9es de l'Oregon sera-t-elle plus \u00e9lev\u00e9e si elles sont rel\u00e2ch\u00e9es dans la nature \u00e0 l'\u00e9tat d'\u0153ufs ou de t\u00eatards ?<\/i><\/strong><\/p>\n<p><i><\/i><span style=\"font-weight: 400;\">C'est l\u00e0 que ma recherche entre en jeu. Je me concentre sur la d\u00e9termination de la fa\u00e7on dont la transition des grenouilles macul\u00e9es de l'Oregon en voie de disparition vers la nature \u00e0 diff\u00e9rents stades de vie impacte leur survie. Cette saison de reproduction, je vais transitionner des masses d'\u0153ufs de grenouille macul\u00e9e de l'Oregon au site o\u00f9 ils sont normalement rel\u00e2ch\u00e9s sous forme de t\u00eatards et de juv\u00e9niles. Je comparerai ensuite ces masses d'\u0153ufs \u00e0 celles qui se d\u00e9veloppent au zoo du Grand Vancouver et observerai comment la diff\u00e9rence dans l'environnement impacte leur d\u00e9veloppement.<\/span><\/p>\n<\/div><\/section><\/div><div  class='flex_column av-4qm13j1-0c8a6b66c6af4f789e7fd3ab4750e8cd av_one_full  avia-builder-el-15  el_after_av_one_full  el_before_av_one_full  first flex_column_div  column-top-margin'     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-477rx99-af1eeebde863601f26cfc0630193f852\">\n.avia-image-container.av-477rx99-af1eeebde863601f26cfc0630193f852 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-477rx99-af1eeebde863601f26cfc0630193f852 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-477rx99-af1eeebde863601f26cfc0630193f852 av-styling- avia-align-center  avia-builder-el-16  el_before_av_hr  avia-builder-el-first'   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img fetchpriority=\"high\" class='wp-image-52706 avia-img-lazy-loading-not-52706 avia_image' src='https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/04\/FrogDetectiveBlog_FloatiesatZoo_JKrol.jpg' alt='Four plastic tubs are floating with neon green pool noodles attached to their edges, in a larger black plastic tub that&#039;s lid is folded open.' title='FrogDetectiveBlog_LesFlotteursAuZoo_JKrol'  height=\"738\" width=\"1019\"  itemprop=\"thumbnailUrl\"  \/><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-3wdquv1-9edb608a803087cfa8b804a9099bd9ab\">\n#top .hr.hr-invisible.av-3wdquv1-9edb608a803087cfa8b804a9099bd9ab{\nheight:15px;\n}\n<\/style>\n<div  class='hr av-3wdquv1-9edb608a803087cfa8b804a9099bd9ab hr-invisible  avia-builder-el-17  el_after_av_image  el_before_av_textblock'><span class='hr-inner'><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<section  class='av_textblock_section av-3jxdb6l-e397860ef992267ca2b53d6f995d966e'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p><i><span style=\"font-weight: 400;\">Les masses d'\u0153ufs situ\u00e9es au zoo du Grand Vancouver qui seront utilis\u00e9es pour compar\u00e9es avec les masses d'\u0153ufs plac\u00e9es dans la nature. Photo par J. Krol.<\/span><\/i><\/p>\n<\/div><\/section><\/p><\/div><div  class='flex_column av-18i062l-175b50a5cfcbef123c5c519e722f46dd av_one_full  avia-builder-el-19  el_after_av_one_full  el_before_av_one_full  first flex_column_div  column-top-margin'     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-moa6ko3s-fa781489f70151059c45b0716e474bad\">\n.avia-image-container.av-moa6ko3s-fa781489f70151059c45b0716e474bad img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-moa6ko3s-fa781489f70151059c45b0716e474bad .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-moa6ko3s-fa781489f70151059c45b0716e474bad av-styling- avia-align-center  avia-builder-el-20  el_before_av_hr  avia-builder-el-first'   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img fetchpriority=\"high\" class='wp-image-52704 avia-img-lazy-loading-not-52704 avia_image' src='https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/04\/FrogDetectiveBlog_FloatiesintheWild_JKrol.jpg' alt='Six plastic tubs float with colourful pool noodles in a wetland captured against a mountainous skyline.' title='GrenouilleD\u00e9tectiveBlog_FlottantesdanslaNatur_JKrol'  height=\"738\" width=\"1019\"  itemprop=\"thumbnailUrl\"  \/><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-u8dihp-4db87ebfaab795350e0f7778f7cf42a5\">\n#top .hr.hr-invisible.av-u8dihp-4db87ebfaab795350e0f7778f7cf42a5{\nheight:15px;\n}\n<\/style>\n<div  class='hr av-u8dihp-4db87ebfaab795350e0f7778f7cf42a5 hr-invisible  avia-builder-el-21  el_after_av_image  el_before_av_textblock'><span class='hr-inner'><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<section  class='av_textblock_section av-moa6l69q-d9b53401f1891b3b832c8157c2d4f84f'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p><i><span style=\"font-weight: 400;\">Les masses d'\u0153ufs plac\u00e9es au site de rel\u00e2chage qui seront utilis\u00e9es pour comparer avec les masses d'\u0153ufs du zoo. Photo de J. Krol.<\/span><\/i><\/p>\n<\/div><\/section><\/p><\/div><div  class='flex_column av-36in1wd-e102570025f73a68de8fbf86c9b767c4 av_one_full  avia-builder-el-23  el_after_av_one_full  el_before_av_one_full  first flex_column_div  column-top-margin'     ><section  class='av_textblock_section av-mo7js5e3-97d7756e268608ca2b0b7baa3a280ffe'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p><span style=\"font-weight: 400;\">Sachant combien de variables pourraient impacter le d\u00e9veloppement de cette grenouille, je vais enregistrer tous les \u00e9v\u00e9nements m\u00e9t\u00e9orologiques v\u00e9cu par les \u0153ufs dans la nature. J'ai \u00e9limin\u00e9 la menace de pr\u00e9dation en prot\u00e9geant les enclos flottants d'\u0153ufs contre les pr\u00e9dateurs (tout comme les \u0153ufs du zoo), et je vais aussi prendre des mesures de la qualit\u00e9 de l'eau au site de rel\u00e2chage et dans les bassins de reproduction. <strong>Cela m'am\u00e8ne \u00e0 une autre question que nous avons envisag\u00e9e : <\/strong><\/span><strong><i>la qualit\u00e9 de l'eau au site de rel\u00e2chage a-t-elle un impact sur le d\u00e9veloppement ?<\/i><\/strong><\/p>\n<\/div><\/section><\/div><div  class='flex_column av-2psjdtp-568ff90f99cd69c2977d89aa293f58b6 av_one_full  avia-builder-el-25  el_after_av_one_full  el_before_av_one_full  first flex_column_div  column-top-margin'     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-73i8cd-a4ea1cc0f86c364f75baf4704d025946\">\n.avia-image-container.av-73i8cd-a4ea1cc0f86c364f75baf4704d025946 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-73i8cd-a4ea1cc0f86c364f75baf4704d025946 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-73i8cd-a4ea1cc0f86c364f75baf4704d025946 av-styling- avia-align-center  avia-builder-el-26  el_before_av_hr  avia-builder-el-first'   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img fetchpriority=\"high\" class='wp-image-52726 avia-img-lazy-loading-not-52726 avia_image' src='https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/04\/FrogDetectiveBlog_JoelleAtSite_AGielens.jpg' alt='Joelle at the edge of the wetland release site. Mountains and tall trees outline the background.' title='GrenouilleD\u00e9tectiveBlog_JoelleSurSite_AGielens'  height=\"738\" width=\"1019\"  itemprop=\"thumbnailUrl\"  \/><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-5tfa4d-13b4525d161e26dce0f8088802a68025\">\n#top .hr.hr-invisible.av-5tfa4d-13b4525d161e26dce0f8088802a68025{\nheight:15px;\n}\n<\/style>\n<div  class='hr av-5tfa4d-13b4525d161e26dce0f8088802a68025 hr-invisible  avia-builder-el-27  el_after_av_image  el_before_av_textblock'><span class='hr-inner'><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<section  class='av_textblock_section av-4i3bj1-0fb67ccf39ad338cca784b682bcc0da3'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p><i>Joelle au site de rel\u00e2chage. Photo par A. Gielens.<\/i><\/p>\n<\/div><\/section><\/p><\/div><div  class='flex_column av-2dboov1-a4f1a3abc84ae8e936b7ca710f1bf100 av_one_full  avia-builder-el-29  el_after_av_one_full  el_before_av_one_full  first flex_column_div  column-top-margin'     ><section  class='av_textblock_section av-moa6mkhl-b431f806d93255f26db792b68e83725c'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p><i><\/i><span style=\"font-weight: 400;\">Puisque le site de rel\u00e2chage est entour\u00e9 de terres agricoles, nous nous demandons si le ruissellement de pesticides et d'herbicides a \u00e9galement un impact n\u00e9gatif sur l'esp\u00e8ce. Je vais tester des \u00e9chantillons de s\u00e9diment pour quelques pesticides cibles, tester les m\u00e9taux totaux et dissous dans l'eau, suivre le pH, la conductivit\u00e9, l'oxyg\u00e8ne dissous et la temp\u00e9rature de l'eau pour d\u00e9terminer si cela a un effet.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Quand les t\u00eatards \u00e9cloront, je vais transitionner plus de t\u00eatards vers la nature et observer les diff\u00e9rences de survie et de d\u00e9veloppement entre les t\u00eatards qui ont \u00e9t\u00e9 (1) transitionn\u00e9s sous forme d'embryons et (2) ceux transitionn\u00e9s vers la nature apr\u00e8s l'\u00e9closion et (3) ceux toujours au zoo.\u00a0<\/span><\/p>\n<\/div><\/section><\/div><div  class='flex_column av-7csldp-e198eed65b009a15d512a14c2809ed02 av_one_full  avia-builder-el-31  el_after_av_one_full  el_before_av_one_full  first flex_column_div  column-top-margin'     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1h2epfh-2985be5b0f52dbff2fbe44dbc9a479bf\">\n.avia-image-container.av-1h2epfh-2985be5b0f52dbff2fbe44dbc9a479bf img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-1h2epfh-2985be5b0f52dbff2fbe44dbc9a479bf .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-1h2epfh-2985be5b0f52dbff2fbe44dbc9a479bf av-styling- avia-align-center  avia-builder-el-32  el_before_av_hr  avia-builder-el-first'   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img fetchpriority=\"high\" class='wp-image-52707 avia-img-lazy-loading-not-52707 avia_image' src='https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/04\/FrogDetectiveBlog_DevelopingFrogsandEgginWild_JKrol.jpg' alt='The spit image shows a mass of frog eggs that have almost developed into tadpoles, while the right shows an egg mass floating within a plastic tub with pink pool noodles on its edges, in a wetland.' title='FrogDetectiveBlog_D\u00e9veloppementDesGrenouillesEtDes\u0152ufsDansLaNature_JKrol'  height=\"738\" width=\"1019\"  itemprop=\"thumbnailUrl\"  \/><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-123h4n1-fd23b5c43ee2e5c141aa2987f9f647f4\">\n#top .hr.hr-invisible.av-123h4n1-fd23b5c43ee2e5c141aa2987f9f647f4{\nheight:15px;\n}\n<\/style>\n<div  class='hr av-123h4n1-fd23b5c43ee2e5c141aa2987f9f647f4 hr-invisible  avia-builder-el-33  el_after_av_image  el_before_av_textblock'><span class='hr-inner'><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<section  class='av_textblock_section av-v1fgt9-71d41d938ae2fce9c05f08889b5c0c76'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p><i>(\u00c0 gauche) Masses d'\u0153ufs qui se sont d\u00e9velopp\u00e9es un peu plus loin et ont produit quelques \u0153ufs allong\u00e9s et m\u00eame quelques t\u00eatards. (\u00c0 droite) Une masse d'\u0153ufs moins d\u00e9velopp\u00e9e flottant dans l'un des enclos en plastique dans la nature. Photos par J. Krol.<\/i><\/p>\n<\/div><\/section><\/p><\/div><div  class='flex_column av-o99lml-6c55fc755987e58aec689ca22a82a7a6 av_one_full  avia-builder-el-35  el_after_av_one_full  el_before_av_one_full  first flex_column_div  column-top-margin'     ><section  class='av_textblock_section av-mo7jslnw-ee97ed63d5a13375c46f1e31b2fd01b8'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p><span style=\"font-weight: 400;\">En observant comment les grenouilles se d\u00e9veloppent d'embryons \u00e0 t\u00eatards puis \u00e0 jeunes grenouilles, nous obtiendrons plus d'informations sur la mani\u00e8re dont cette esp\u00e8ce menac\u00e9e peut g\u00e9rer sa remise en libert\u00e9 dans la nature \u00e0 diff\u00e9rents stades de vie et sur l'impact que la qualit\u00e9 de l'eau a sur sa survie. Les r\u00e9sultats de cette recherche seront utilis\u00e9s pour informer les d\u00e9cisions futures pour le r\u00e9tablissement des grenouilles mascul\u00e9es de l'Oregon (\u00e9galement l'amphibien le plus en danger au Canada).<\/span><\/p>\n<p><em>Ce projet a \u00e9t\u00e9 d\u00e9velopp\u00e9 et est en cours de r\u00e9alisation en collaboration avec Andrea Gielens (Conservation de la faune au Canada), Briar Hunter (Minist\u00e8re de l'Eau, des Terres et de la G\u00e9rance des ressources) et Dr Vicki Marlatt (Universit\u00e9 Simon Fraser).\u00a0<\/em><\/p>\n<\/div><\/section><\/div><div  class='flex_column av-sf8owt-9645ef7710c9f491088a9ad55af7be81 av_one_full  avia-builder-el-37  el_after_av_one_full  el_before_av_hr  first flex_column_div  column-top-margin'     ><section  class='av_textblock_section av-moa6x7pg-6b37e516539fc24f3931fc109a9cf01e'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p><strong><em>Un merci sp\u00e9cial \u00e0 Jack S. Darville pour son soutien continu par le biais du Fonds de dotation de conservation des grenouilles Darville.\u00a0<\/em><\/strong><\/p>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-84rxuvx-73a1876e2561845ab71844c4ce33c98a\">\n#top .hr.hr-invisible.av-84rxuvx-73a1876e2561845ab71844c4ce33c98a{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-84rxuvx-73a1876e2561845ab71844c4ce33c98a hr-invisible  avia-builder-el-39  el_after_av_one_full  avia-builder-el-last'><span class='hr-inner'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<\/div><\/div><\/div><!-- close content main div --><\/div><\/div><div id='av_section_3'  class='avia-section av-7gtu6xp-101b260691961465d71fdad9a2e6b12d main_color avia-section-default avia-no-border-styling  avia-builder-el-40  el_after_av_section  el_before_av_section  blog-inner avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-52701'><div class='entry-content-wrapper clearfix'>\n<div  class='flex_column av-7018i4d-890965c093710627be96c146771fdc66 av_one_full  avia-builder-el-41  avia-builder-el-no-sibling  author-section first flex_column_div'     ><section  class='av_textblock_section av-6ihfayl-c92bc7275a5c07591bfe8d916a7d19cd'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h3 style=\"text-align: left;\">Joelle Krol<\/h3>\n<h5 style=\"text-align: left;\">\u00c9tudiante en recherche \u2013 Grenouilles macul\u00e9es de l'Oregon<\/h5>\n<div class=\"elementToProof\">Joelle poursuit sa ma\u00eetrise \u00e0 l'Universit\u00e9 Simon Fraser, menant des recherches sur les grenouilles macul\u00e9es de l'Or\u00e9gon avec le soutien de Conservation de la faune au Canada. Elle a pass\u00e9 les 5 derni\u00e8res ann\u00e9es \u00e0 travailler avec des esp\u00e8ces aquatiques en p\u00e9ril dans le sud de la Colombie-Britannique. Son exp\u00e9rience de travail avec des esp\u00e8ces aquatiques a motiv\u00e9 son projet de recherche actuel, visant \u00e0 comprendre les facteurs influen\u00e7ant la survie de la grenouille macul\u00e9e de l'Or\u00e9gon et \u00e0 am\u00e9liorer sa strat\u00e9gie de r\u00e9introduction.<\/div>\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-69jbsot-5caa5f7c702a8228a85c20ce142a84e2\">\n.avia-image-container.av-69jbsot-5caa5f7c702a8228a85c20ce142a84e2 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-69jbsot-5caa5f7c702a8228a85c20ce142a84e2 .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-69jbsot-5caa5f7c702a8228a85c20ce142a84e2 av-styling- avia-align-center  avia-builder-el-43  el_after_av_textblock  avia-builder-el-last  author-pic'   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img fetchpriority=\"high\" class='wp-image-52712 avia-img-lazy-loading-not-52712 avia_image' src='https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/04\/2026JoelleKrol_Thumbnail.jpg' alt='' title='2026JoelleKrol_Miniature'  height=\"400\" width=\"400\"  itemprop=\"thumbnailUrl\"  \/><\/div><\/div><\/div><\/p><\/div>\n<\/p>\n<\/div><\/div><\/div><!-- close content main div --><\/div><\/div><div id='blog-inner'  class='avia-section av-fgckbh-e6efa6b90324ad21edcc8c504d4f23a7 main_color avia-section-default avia-no-border-styling  avia-builder-el-44  el_after_av_section  el_before_av_section  blog-section avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-52701'><div class='entry-content-wrapper clearfix'>\n<div  id=\"recent-articles-project\"  class='flex_column av-449x1wd-a4b9f541b473204d171dabca9c7e95db av_one_full  avia-builder-el-45  el_before_av_one_full  avia-builder-el-first  more-articles-section first flex_column_div'     ><section  class='av_textblock_section av-3jd0aal-0a475611da64d3814786039e1022cc19'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><h2>Articles r\u00e9cents sur le projet<\/h2>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-bdvxi5-a47896c4ac1386a7b0d0daeef6eef511\">\n#top .flex_column.av-bdvxi5-a47896c4ac1386a7b0d0daeef6eef511{\nmargin-top:20px;\nmargin-bottom:15px;\n}\n.responsive #top #wrap_all .flex_column.av-bdvxi5-a47896c4ac1386a7b0d0daeef6eef511{\nmargin-top:20px;\nmargin-bottom:15px;\n}\n<\/style>\n<div  class='flex_column av-bdvxi5-a47896c4ac1386a7b0d0daeef6eef511 av_one_full  avia-builder-el-47  el_after_av_one_full  avia-builder-el-last  first flex_column_div  column-top-margin'     ><div  class='av-alb-blogposts template-blog  blog-home'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/Blog\" ><article class=\"post-entry post-entry-type-standard post-entry-53001 post-loop-1 post-parity-odd single-big with-slider post-53001 post type-post status-publish format-standard has-post-thumbnail hentry category-news-and-events category-oregon_spotted_frog project-fraser-valley-wetlands specific-species-oregon-spotted-frog-program\"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" ><div class=\"blog-meta\"><\/div><div class='entry-content-wrapper clearfix standard-content'><header class=\"entry-content-header\" aria-label=\"Post: On to freedom\"><div class=\"av-heading-wrapper\"><h2 class='post-title entry-title'  itemprop=\"headline\" ><a href=\"https:\/\/wildlifepreservation.ca\/fr\/blog\/on-to-freedom\/\" rel=\"bookmark\" title=\"Permanent Link: On to freedom\">En route vers la libert\u00e9<span class=\"post-format-icon minor-meta\"><\/span><\/a><\/h2><span class=\"blog-categories minor-meta\"><a href=\"https:\/\/wildlifepreservation.ca\/fr\/blog\/category\/news-and-events\/\" rel=\"tag\">Actualit\u00e9s et \u00e9v\u00e9nements<\/a>, <a href=\"https:\/\/wildlifepreservation.ca\/fr\/blog\/category\/oregon_spotted_frog\/\" rel=\"tag\">Grenouille macul\u00e9e de l'Oregon<\/a> <a href=\"https:\/\/wildlifepreservation.ca\/fr\/blog\/project\/fraser-valley-wetlands\/\" rel=\"tag\">Les zones humides de la vall\u00e9e Fraser<\/a> <a href=\"https:\/\/wildlifepreservation.ca\/fr\/species\/oregon-spotted-frog-program\/\" rel=\"tag\">Grenouille macul\u00e9e de l'Oregon<\/a><\/span><\/div><\/header><span class=\"av-vertical-delimiter\"><\/span><div class=\"big-preview single-big\"  itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><a href=\"https:\/\/wildlifepreservation.ca\/fr\/blog\/on-to-freedom\/\"  title=\"Blog photo reformatage - OnToFreedom_BriarObtenirDesT\u00eatardsPourRel\u00e2chement_AlyssadeWit\" ><img decoding=\"async\" loading=\"lazy\" width=\"400\" height=\"400\" src=\"https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/05\/OnToFreedom_BriarGettingTadpolesForRelease_AlyssadeWit_Thumbnail.jpg\" class=\"wp-image-53014 avia-img-lazy-loading-53014 attachment-entry_without_sidebar size-entry_without_sidebar wp-post-image\" alt=\"\" srcset=\"https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/05\/OnToFreedom_BriarGettingTadpolesForRelease_AlyssadeWit_Thumbnail.jpg 400w, https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/05\/OnToFreedom_BriarGettingTadpolesForRelease_AlyssadeWit_Thumbnail-300x300.jpg 300w, https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/05\/OnToFreedom_BriarGettingTadpolesForRelease_AlyssadeWit_Thumbnail-80x80.jpg 80w, https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/05\/OnToFreedom_BriarGettingTadpolesForRelease_AlyssadeWit_Thumbnail-12x12.jpg 12w, https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/05\/OnToFreedom_BriarGettingTadpolesForRelease_AlyssadeWit_Thumbnail-36x36.jpg 36w, https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/05\/OnToFreedom_BriarGettingTadpolesForRelease_AlyssadeWit_Thumbnail-180x180.jpg 180w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><\/div><div class=\"entry-content\"  itemprop=\"text\" ><div class=\"read-more-link\"><a href=\"https:\/\/wildlifepreservation.ca\/fr\/blog\/on-to-freedom\/\" class=\"more-link\">Read more<span class='more-link-arrow avia-svg-icon avia-font-svg_entypo-fontello' data-av_svg_icon='right-open-big' data-av_iconset='svg_entypo-fontello'><svg version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"15\" height=\"32\" viewbox=\"0 0 15 32\" preserveaspectratio=\"xMidYMid meet\" role=\"graphics-symbol\" aria-hidden=\"true\">\n<path d=\"M0.416 27.84l11.456-11.84-11.456-11.904q-0.832-0.832 0-1.536 0.832-0.832 1.536 0l12.544 12.608q0.768 0.832 0 1.6l-12.544 12.608q-0.704 0.832-1.536 0-0.832-0.704 0-1.536z\"><\/path>\n<\/svg><\/span><\/a><\/div>\n<\/div><span class=\"post-meta-infos\"><time class=\"date-container minor-meta updated\"  itemprop=\"datePublished\" datetime=\"2026-05-13T13:12:16-05:00\" >13 mai 2026<\/time><span class=\"text-sep\">\/<\/span><span class=\"blog-author minor-meta\">par <span class=\"entry-author-link\"  itemprop=\"author\" ><span class=\"author\"><span class=\"fn\"><a href=\"https:\/\/wildlifepreservation.ca\/fr\/blog\/author\/alyssa-de-wit\/\" rel=\"author\">Alyssa de Wit<\/a><\/span><\/span><\/span><\/span><\/span><footer class=\"entry-footer\"><\/footer><div class='post_delimiter'><\/div><\/div><div class=\"post_author_timeline\"><\/div><span class='hidden'>\n\t\t\t\t<span class='av-structured-data'  itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" >\n\t\t\t\t\t\t<span itemprop='url'>https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/05\/OnToFreedom_BriarGettingTadpolesForRelease_AlyssadeWit_Thumbnail.jpg<\/span>\n\t\t\t\t\t\t<span itemprop='height'>400<\/span>\n\t\t\t\t\t\t<span itemprop='width'>400<\/span>\n\t\t\t\t<\/span>\n\t\t\t\t<span class='av-structured-data'  itemprop=\"publisher\" itemtype=\"https:\/\/schema.org\/Organization\" itemscope=\"itemscope\" >\n\t\t\t\t\t\t<span itemprop='name'>Alyssa de Wit<\/span>\n\t\t\t\t\t\t<span itemprop='logo' itemscope itemtype='https:\/\/schema.org\/ImageObject'>\n\t\t\t\t\t\t\t<span itemprop='url'>https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/06\/WPC_Frn-scaled.jpg<\/span>\n\t\t\t\t\t\t<\/span>\n\t\t\t\t<\/span><span class='av-structured-data'  itemprop=\"author\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/Person\" ><span itemprop='name'>Alyssa de Wit<\/span><\/span><span class='av-structured-data'  itemprop=\"datePublished\" datetime=\"2026-05-13T13:12:16-05:00\" >2026-05-13 13:12:16<\/span><span class='av-structured-data'  itemprop=\"dateModified\" itemtype=\"https:\/\/schema.org\/dateModified\" >2026-05-13 13:12:42<\/span><span class='av-structured-data'  itemprop=\"mainEntityOfPage\" itemtype=\"https:\/\/schema.org\/mainEntityOfPage\" ><span itemprop='name'>En route vers la libert\u00e9<\/span><\/span><\/span><\/article><article class=\"post-entry post-entry-type-standard post-entry-52701 post-loop-2 post-parity-even single-big with-slider post-52701 post type-post status-publish format-standard has-post-thumbnail hentry category-news-and-events category-oregon_spotted_frog project-fraser-valley-wetlands specific-species-oregon-spotted-frog-program\"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" ><div class=\"blog-meta\"><\/div><div class='entry-content-wrapper clearfix standard-content'><header class=\"entry-content-header\" aria-label=\"Post: Froggie investigation\"><div class=\"av-heading-wrapper\"><h2 class='post-title entry-title'  itemprop=\"headline\" ><a href=\"https:\/\/wildlifepreservation.ca\/fr\/blog\/frog-detective-on-the-case\/\" rel=\"bookmark\" title=\"Permanent Link: Froggie investigation\">Enqu\u00eate sur les grenouilles<span class=\"post-format-icon minor-meta\"><\/span><\/a><\/h2><span class=\"blog-categories minor-meta\"><a href=\"https:\/\/wildlifepreservation.ca\/fr\/blog\/category\/news-and-events\/\" rel=\"tag\">Actualit\u00e9s et \u00e9v\u00e9nements<\/a>, <a href=\"https:\/\/wildlifepreservation.ca\/fr\/blog\/category\/oregon_spotted_frog\/\" rel=\"tag\">Grenouille macul\u00e9e de l'Oregon<\/a> <a href=\"https:\/\/wildlifepreservation.ca\/fr\/blog\/project\/fraser-valley-wetlands\/\" rel=\"tag\">Les zones humides de la vall\u00e9e Fraser<\/a> <a href=\"https:\/\/wildlifepreservation.ca\/fr\/species\/oregon-spotted-frog-program\/\" rel=\"tag\">Grenouille macul\u00e9e de l'Oregon<\/a><\/span><\/div><\/header><span class=\"av-vertical-delimiter\"><\/span><div class=\"big-preview single-big\"  itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><a href=\"https:\/\/wildlifepreservation.ca\/fr\/blog\/frog-detective-on-the-case\/\"  title=\"2026JoelleKrol_Miniature\" ><img decoding=\"async\" fetchpriority=\"high\" width=\"400\" height=\"400\" src=\"https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/04\/2026JoelleKrol_Thumbnail.jpg\" class=\"wp-image-52712 avia-img-lazy-loading-not-52712 attachment-entry_without_sidebar size-entry_without_sidebar wp-post-image\" alt=\"\" srcset=\"https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/04\/2026JoelleKrol_Thumbnail.jpg 400w, https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/04\/2026JoelleKrol_Thumbnail-300x300.jpg 300w, https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/04\/2026JoelleKrol_Thumbnail-80x80.jpg 80w, https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/04\/2026JoelleKrol_Thumbnail-12x12.jpg 12w, https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/04\/2026JoelleKrol_Thumbnail-36x36.jpg 36w, https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/04\/2026JoelleKrol_Thumbnail-180x180.jpg 180w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><\/div><div class=\"entry-content\"  itemprop=\"text\" ><div class=\"read-more-link\"><a href=\"https:\/\/wildlifepreservation.ca\/fr\/blog\/frog-detective-on-the-case\/\" class=\"more-link\">Read more<span class='more-link-arrow avia-svg-icon avia-font-svg_entypo-fontello' data-av_svg_icon='right-open-big' data-av_iconset='svg_entypo-fontello'><svg version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"15\" height=\"32\" viewbox=\"0 0 15 32\" preserveaspectratio=\"xMidYMid meet\" role=\"graphics-symbol\" aria-hidden=\"true\">\n<path d=\"M0.416 27.84l11.456-11.84-11.456-11.904q-0.832-0.832 0-1.536 0.832-0.832 1.536 0l12.544 12.608q0.768 0.832 0 1.6l-12.544 12.608q-0.704 0.832-1.536 0-0.832-0.704 0-1.536z\"><\/path>\n<\/svg><\/span><\/a><\/div>\n<\/div><span class=\"post-meta-infos\"><time class=\"date-container minor-meta updated\"  itemprop=\"datePublished\" datetime=\"2026-04-22T10:05:16-05:00\" >22 avril 2026<\/time><span class=\"text-sep\">\/<\/span><span class=\"blog-author minor-meta\">par <span class=\"entry-author-link\"  itemprop=\"author\" ><span class=\"author\"><span class=\"fn\"><a href=\"https:\/\/wildlifepreservation.ca\/fr\/blog\/author\/wildlife-preservation-canada\/\" rel=\"author\">Conservation de la faune au Canada<\/a><\/span><\/span><\/span><\/span><\/span><footer class=\"entry-footer\"><\/footer><div class='post_delimiter'><\/div><\/div><div class=\"post_author_timeline\"><\/div><span class='hidden'>\n\t\t\t\t<span class='av-structured-data'  itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" >\n\t\t\t\t\t\t<span itemprop='url'>https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/04\/2026JoelleKrol_Thumbnail.jpg<\/span>\n\t\t\t\t\t\t<span itemprop='height'>400<\/span>\n\t\t\t\t\t\t<span itemprop='width'>400<\/span>\n\t\t\t\t<\/span>\n\t\t\t\t<span class='av-structured-data'  itemprop=\"publisher\" itemtype=\"https:\/\/schema.org\/Organization\" itemscope=\"itemscope\" >\n\t\t\t\t\t\t<span itemprop='name'>Conservation de la faune au Canada<\/span>\n\t\t\t\t\t\t<span itemprop='logo' itemscope itemtype='https:\/\/schema.org\/ImageObject'>\n\t\t\t\t\t\t\t<span itemprop='url'>https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/06\/WPC_Frn-scaled.jpg<\/span>\n\t\t\t\t\t\t<\/span>\n\t\t\t\t<\/span><span class='av-structured-data'  itemprop=\"author\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/Person\" ><span itemprop='name'>Conservation de la faune au Canada<\/span><\/span><span class='av-structured-data'  itemprop=\"datePublished\" datetime=\"2026-04-22T10:05:16-05:00\" >2026-04-22 10:05:16<\/span><span class='av-structured-data'  itemprop=\"dateModified\" itemtype=\"https:\/\/schema.org\/dateModified\" >2026-04-28 12:37:50<\/span><span class='av-structured-data'  itemprop=\"mainEntityOfPage\" itemtype=\"https:\/\/schema.org\/mainEntityOfPage\" ><span itemprop='name'>Enqu\u00eate sur les grenouilles<\/span><\/span><\/span><\/article><article class=\"post-entry post-entry-type-standard post-entry-48961 post-loop-3 post-parity-odd post-entry-last single-big with-slider post-48961 post type-post status-publish format-standard has-post-thumbnail hentry category-bc-wetlands category-news-and-events category-oregon_spotted_frog project-fraser-valley-wetlands specific-species-oregon-spotted-frog-program specific-species-species-at-risk\"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" ><div class=\"blog-meta\"><\/div><div class='entry-content-wrapper clearfix standard-content'><header class=\"entry-content-header\" aria-label=\"Post: What is the difference between frogs and toads?\"><div class=\"av-heading-wrapper\"><h2 class='post-title entry-title'  itemprop=\"headline\" ><a href=\"https:\/\/wildlifepreservation.ca\/fr\/blog\/difference-between-frogs-and-toads\/\" rel=\"bookmark\" title=\"Permanent Link: What is the difference between frogs and toads?\">Quelle est la diff\u00e9rence entre les grenouilles et les crapauds ?<span class=\"post-format-icon minor-meta\"><\/span><\/a><\/h2><span class=\"blog-categories minor-meta\"><a href=\"https:\/\/wildlifepreservation.ca\/fr\/blog\/category\/bc-wetlands\/\" rel=\"tag\">Faune des milieux humides de la vall\u00e9e du Fraser<\/a>, <a href=\"https:\/\/wildlifepreservation.ca\/fr\/blog\/category\/news-and-events\/\" rel=\"tag\">Actualit\u00e9s et \u00e9v\u00e9nements<\/a>, <a href=\"https:\/\/wildlifepreservation.ca\/fr\/blog\/category\/oregon_spotted_frog\/\" rel=\"tag\">Grenouille macul\u00e9e de l'Oregon<\/a> <a href=\"https:\/\/wildlifepreservation.ca\/fr\/blog\/project\/fraser-valley-wetlands\/\" rel=\"tag\">Les zones humides de la vall\u00e9e Fraser<\/a> <a href=\"https:\/\/wildlifepreservation.ca\/fr\/species\/oregon-spotted-frog-program\/\" rel=\"tag\">Grenouille macul\u00e9e de l'Oregon<\/a>, <a href=\"https:\/\/wildlifepreservation.ca\/fr\/species\/species-at-risk\/\" rel=\"tag\">Esp\u00e8ces menac\u00e9es<\/a><\/span><\/div><\/header><span class=\"av-vertical-delimiter\"><\/span><div class=\"big-preview single-big\"  itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><a href=\"https:\/\/wildlifepreservation.ca\/fr\/blog\/difference-between-frogs-and-toads\/\"  title=\"GrenouilleVSToile_Miniature\" ><img decoding=\"async\" loading=\"lazy\" width=\"400\" height=\"400\" src=\"https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2025\/01\/FrogVSToad_Thumbnail.png\" class=\"wp-image-48969 avia-img-lazy-loading-48969 attachment-entry_without_sidebar size-entry_without_sidebar wp-post-image\" alt=\"\" srcset=\"https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2025\/01\/FrogVSToad_Thumbnail.png 400w, https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2025\/01\/FrogVSToad_Thumbnail-300x300.png 300w, https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2025\/01\/FrogVSToad_Thumbnail-80x80.png 80w, https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2025\/01\/FrogVSToad_Thumbnail-12x12.png 12w, https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2025\/01\/FrogVSToad_Thumbnail-36x36.png 36w, https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2025\/01\/FrogVSToad_Thumbnail-180x180.png 180w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><\/div><div class=\"entry-content\"  itemprop=\"text\" ><div class=\"read-more-link\"><a href=\"https:\/\/wildlifepreservation.ca\/fr\/blog\/difference-between-frogs-and-toads\/\" class=\"more-link\">Read more<span class='more-link-arrow avia-svg-icon avia-font-svg_entypo-fontello' data-av_svg_icon='right-open-big' data-av_iconset='svg_entypo-fontello'><svg version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"15\" height=\"32\" viewbox=\"0 0 15 32\" preserveaspectratio=\"xMidYMid meet\" role=\"graphics-symbol\" aria-hidden=\"true\">\n<path d=\"M0.416 27.84l11.456-11.84-11.456-11.904q-0.832-0.832 0-1.536 0.832-0.832 1.536 0l12.544 12.608q0.768 0.832 0 1.6l-12.544 12.608q-0.704 0.832-1.536 0-0.832-0.704 0-1.536z\"><\/path>\n<\/svg><\/span><\/a><\/div>\n<\/div><span class=\"post-meta-infos\"><time class=\"date-container minor-meta updated\"  itemprop=\"datePublished\" datetime=\"2025-01-19T11:40:35-05:00\" >19 janvier 2025<\/time><span class=\"text-sep\">\/<\/span><span class=\"blog-author minor-meta\">par <span class=\"entry-author-link\"  itemprop=\"author\" ><span class=\"author\"><span class=\"fn\"><a href=\"https:\/\/wildlifepreservation.ca\/fr\/blog\/author\/wildlife-preservation-canada\/\" rel=\"author\">Conservation de la faune au Canada<\/a><\/span><\/span><\/span><\/span><\/span><footer class=\"entry-footer\"><\/footer><div class='post_delimiter'><\/div><\/div><div class=\"post_author_timeline\"><\/div><span class='hidden'>\n\t\t\t\t<span class='av-structured-data'  itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" >\n\t\t\t\t\t\t<span itemprop='url'>https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2025\/01\/FrogVSToad_Thumbnail.png<\/span>\n\t\t\t\t\t\t<span itemprop='height'>400<\/span>\n\t\t\t\t\t\t<span itemprop='width'>400<\/span>\n\t\t\t\t<\/span>\n\t\t\t\t<span class='av-structured-data'  itemprop=\"publisher\" itemtype=\"https:\/\/schema.org\/Organization\" itemscope=\"itemscope\" >\n\t\t\t\t\t\t<span itemprop='name'>Conservation de la faune au Canada<\/span>\n\t\t\t\t\t\t<span itemprop='logo' itemscope itemtype='https:\/\/schema.org\/ImageObject'>\n\t\t\t\t\t\t\t<span itemprop='url'>https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/06\/WPC_Frn-scaled.jpg<\/span>\n\t\t\t\t\t\t<\/span>\n\t\t\t\t<\/span><span class='av-structured-data'  itemprop=\"author\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/Person\" ><span itemprop='name'>Conservation de la faune au Canada<\/span><\/span><span class='av-structured-data'  itemprop=\"datePublished\" datetime=\"2025-01-19T11:40:35-05:00\" >2025-01-19 11:40:35<\/span><span class='av-structured-data'  itemprop=\"dateModified\" itemtype=\"https:\/\/schema.org\/dateModified\" >2025-01-21 12:48:52<\/span><span class='av-structured-data'  itemprop=\"mainEntityOfPage\" itemtype=\"https:\/\/schema.org\/mainEntityOfPage\" ><span itemprop='name'>Quelle est la diff\u00e9rence entre les grenouilles et les crapauds ?<\/span><\/span><\/span><\/article><\/div><\/div>\n\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-25kkogt-e7852b40af7f5f9dfa521973b5f5908b\">\n.avia-section.av-25kkogt-e7852b40af7f5f9dfa521973b5f5908b{\nbackground-repeat:no-repeat;\nbackground-image:url(https:\/\/wildlifepreservation.ca\/wp-content\/uploads\/2026\/04\/HowToBreedanEndangeredSpeciesOSF_FrogInHand_AGielens.jpg);\nbackground-position:0% 0%;\nbackground-attachment:scroll;\n}\n<\/style>\n<div id='av_section_5'  class='avia-section av-25kkogt-e7852b40af7f5f9dfa521973b5f5908b main_color avia-section-default avia-no-border-styling  avia-builder-el-0  el_before_av_section  avia-builder-el-first  need-your-help-wrapper avia-full-stretch avia-bg-style-scroll container_wrap fullsize'  data-section-bg-repeat='stretch'><div class='container av-section-cont-open' ><main  role=\"main\" itemprop=\"mainContentOfPage\"  class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-52701'><div class='entry-content-wrapper clearfix'>\n<div  class='flex_column av-1mnacxp-72102b8b06414497aea8cf110e820afd av_one_full first flex_column_div'     ><section  class='av_textblock_section av-18tfovx-7676d846dc9ba77b1d878de4ca4cce45'   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock'  itemprop=\"text\" ><p style=\"text-align: center;\">Nous avons besoin de votre aide<\/p>\n<h1 style=\"text-align: center;\">Faites un don pour sauver les esp\u00e8ces menac\u00e9es<\/h1>\n<\/div><\/section><br \/>\n<div  class='avia-button-wrap av-vnzsn1-558613b9974a0a106a4b93d9a340caff-wrap avia-button-center  heart-button'>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-vnzsn1-558613b9974a0a106a4b93d9a340caff\">\n#top #wrap_all .avia-button.av-vnzsn1-558613b9974a0a106a4b93d9a340caff:hover{\ncolor:white;\ntransition:all 0.4s ease-in-out;\n}\n#top #wrap_all .avia-button.av-vnzsn1-558613b9974a0a106a4b93d9a340caff:hover .avia-svg-icon svg:first-child{\nfill:white;\nstroke:white;\n}\n<\/style>\n<a href='https:\/\/wildlifepreservation.ca\/fr\/donate\/'  class='avia-button av-vnzsn1-558613b9974a0a106a4b93d9a340caff av-link-btn avia-icon_select-no avia-size-small avia-position-center avia-color-theme-color avia-font-color-theme-color'  target=\"_blank\"  rel=\"noopener noreferrer\"  aria-label=\"Faire un don\"><span class='avia_iconbox_title' >Faire un don<\/span><span class='avia_button_background avia-button avia-color-theme-color-highlight' ><\/span><\/a><\/div><\/p><\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":19,"featured_media":52712,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[10,252],"tags":[],"class_list":["post-52701","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-and-events","category-oregon_spotted_frog","project-fraser-valley-wetlands","specific-species-oregon-spotted-frog-program"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Froggie investigation - Wildlife Preservation Canada<\/title>\n<meta name=\"description\" content=\"Wildlife Preservation Canada\u2019s mission is to save animal species at risk from extinction in Canada by providing direct, hands-on care.Learn more about\" \/>\n<meta name=\"robots\" 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