{"id":19620,"date":"2024-04-03T12:30:00","date_gmt":"2024-04-03T16:30:00","guid":{"rendered":"https:\/\/www.yorku.ca\/news\/?p=19620"},"modified":"2024-10-17T14:27:38","modified_gmt":"2024-10-17T18:27:38","slug":"les-abeilles-melliferes-sont-confrontees-a-de-multiples-facteurs-de-stress-qui-affectent-leur-sante","status":"publish","type":"post","link":"https:\/\/www.yorku.ca\/news\/2024\/04\/03\/les-abeilles-melliferes-sont-confrontees-a-de-multiples-facteurs-de-stress-qui-affectent-leur-sante\/","title":{"rendered":"Les abeilles mellif\u00e8res sont confront\u00e9es \u00e0 de multiples facteurs de stress qui affectent leur sant\u00e9"},"content":{"rendered":"<div id=\"bsf_rt_marker\"><\/div>\n<p>TORONTO, le 17 avril 2024 \u2013 Selon une nouvelle \u00e9tude de l\u2019Universit\u00e9 York, il ne s\u2019agit pas d\u2019un seul pesticide ou virus qui stresse les abeilles domestiques et qui affecte leur sant\u00e9, mais plut\u00f4t de l\u2019exposition \u00e0 un r\u00e9seau complexe de multiples facteurs de stress en interaction rencontr\u00e9s lors de leurs activit\u00e9s de pollinisation et de butinage des cultures.<\/p>\n\n\n\n<p>De nombreux scientifiques ont \u00e9t\u00e9 incapables d\u2019expliquer l\u2019augmentation de la mortalit\u00e9 des colonies, m\u00eame apr\u00e8s des d\u00e9cennies de recherche examinant le r\u00f4le de pesticides sp\u00e9cifiques, d\u2019acariens parasites, de virus ou de g\u00e9n\u00e9tique. Cela a amen\u00e9 l\u2019\u00e9quipe de recherche \u00e0 se demander si les \u00e9tudes pr\u00e9c\u00e9dentes manquaient quelque chose en se concentrant sur un seul facteur de stress \u00e0 la fois.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.yorku.ca\/news\/wp-content\/uploads\/sites\/242\/2022\/05\/Amro-Zayed-Headshot-962x1024.jpg\" alt=\"Headshot of Amro Zayed\" class=\"wp-image-870\" width=\"227\" height=\"241\" srcset=\"https:\/\/www.yorku.ca\/news\/wp-content\/uploads\/sites\/242\/2022\/05\/Amro-Zayed-Headshot-962x1024.jpg 962w, https:\/\/www.yorku.ca\/news\/wp-content\/uploads\/sites\/242\/2022\/05\/Amro-Zayed-Headshot-282x300.jpg 282w, https:\/\/www.yorku.ca\/news\/wp-content\/uploads\/sites\/242\/2022\/05\/Amro-Zayed-Headshot-1443x1536.jpg 1443w, https:\/\/www.yorku.ca\/news\/wp-content\/uploads\/sites\/242\/2022\/05\/Amro-Zayed-Headshot-1925x2048.jpg 1925w\" sizes=\"auto, (max-width: 227px) 100vw, 227px\" \/><figcaption>Amro Zayed<\/figcaption><\/figure><\/div>\n\n\n\n<p>&nbsp;\u00ab Notre \u00e9tude est la premi\u00e8re \u00e0 appliquer des analyses au niveau des syst\u00e8mes ou des r\u00e9seaux aux facteurs de stress des abeilles domestiques \u00e0 grande \u00e9chelle. Je pense que cela repr\u00e9sente un changement de paradigme dans le domaine parce que nous avons souvent concentr\u00e9 la recherche \u00e0 trouver l'unique probl\u00e8me majeur, le pistolet fumant \u00bb, d\u00e9clare l'auteur correspondant du nouveau document, Dr. Amro Zayed, professeur \u00e0 la Facult\u00e9 des sciences de l\u2019universit\u00e9 de York, titulaire de la chaire de recherche en g\u00e9nomique (York Research Chair in Genomics). \u00ab Nous constatons que les abeilles sont expos\u00e9es \u00e0 un r\u00e9seau tr\u00e8s complexe de facteurs de stress qui \u00e9voluent rapidement dans le temps et dans l\u2019espace. C'est un niveau de complexit\u00e9 auquel nous n'avions pas pens\u00e9 auparavant. Pour moi, c'est la grande surprise de cette \u00e9tude&nbsp;\u00bb.<\/p>\n\n\n\n<p>L'article, intitul\u00e9 \u00ab&nbsp;Honey bee stressor networks are complex and dependent on crop and region&nbsp;\u00bb, publi\u00e9 aujourd'hui dans <em>Current Biology<\/em>, jette un regard beaucoup plus large sur l'interaction des facteurs de stress et leurs effets. L'\u00e9quipe qui a r\u00e9alis\u00e9 cette \u00e9tude regroupe des chercheurs de l'Universit\u00e9 de la Colombie-Britannique, d'Agriculture et Agroalimentaire Canada, de l'Universit\u00e9 de Victoria, de l'Universit\u00e9 de Lethbridge, de l'Universit\u00e9 du Manitoba, de l'Universit\u00e9 Laval, de l'Universit\u00e9 de Guelph et de l'Ontario Beekeepers' Association.<\/p>\n\n\n\n<p>Cependant, les facteurs de stress ne sont pas identiques et n\u2019ont pas le m\u00eame impact sur la sant\u00e9 des abeilles. Certains facteurs de stress sont plus influents que d\u2019autres \u2013 ce que les chercheurs appellent les \u00ab&nbsp;influenceurs des m\u00e9dias sociaux du monde des abeilles&nbsp;\u00bb \u2013 et ont un impact d\u00e9mesur\u00e9 sur l\u2019architecture d\u2019un r\u00e9seau tr\u00e8s complexe et sur leurs co-stresseurs. Ils ont \u00e9galement constat\u00e9 que la plupart de ces facteurs de stress sont des virus et des pesticides qui apparaissent r\u00e9guli\u00e8rement en combinaison avec d\u2019autres facteurs de stress sp\u00e9cifiques, aggravant les effets n\u00e9gatifs par leurs interactions.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignleft size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.yorku.ca\/news\/wp-content\/uploads\/sites\/242\/2024\/04\/Sarah-2.jpg\" alt=\"headshot of Postdoc Sarah French\" class=\"wp-image-19615\" width=\"210\" height=\"209\" srcset=\"https:\/\/www.yorku.ca\/news\/wp-content\/uploads\/sites\/242\/2024\/04\/Sarah-2.jpg 513w, https:\/\/www.yorku.ca\/news\/wp-content\/uploads\/sites\/242\/2024\/04\/Sarah-2-300x300.jpg 300w, https:\/\/www.yorku.ca\/news\/wp-content\/uploads\/sites\/242\/2024\/04\/Sarah-2-150x150.jpg 150w\" sizes=\"auto, (max-width: 210px) 100vw, 210px\" \/><figcaption>Sarah French<\/figcaption><\/figure><\/div>\n\n\n\n<p>\u00ab&nbsp;Comprendre quels facteurs de stress coexistent et sont susceptibles d'interagir est extr\u00eamement important pour comprendre comment ils affectent la sant\u00e9 et la mortalit\u00e9 des colonies d'abeilles mellif\u00e8res&nbsp;\u00bb, explique l'auteure principale, Sarah French, stagiaire postdoctorale de la Facult\u00e9 des sciences, Universit\u00e9 York.<\/p>\n\n\n\n<p>\u00ab Il y a eu de nombreuses \u00e9tudes sur les principaux pesticides qui affectent les abeilles, mais dans cette recherche, nous avons \u00e9galement vu beaucoup de pesticides peu communs auxquels nous ne pensons pas ou n\u2019\u00e9tudions pas habituellement. Nous avons \u00e9galement d\u00e9couvert de nombreux virus que les apiculteurs ne surveillent ou ne g\u00e8rent g\u00e9n\u00e9ralement pas. Voir les facteurs de stress \u00ab&nbsp;influenceurs&nbsp;\u00bb interagir avec tous ces autres facteurs de stress, qu\u2019il s\u2019agisse d\u2019acariens, d\u2019autres pesticides ou de virus, \u00e9tait non seulement int\u00e9ressant, mais surprenant&nbsp;\u00bb.<\/p>\n\n\n\n<p>French affirme que la fa\u00e7on dont les facteurs de stress des \u00ab&nbsp;influenceurs&nbsp;\u00bb coexistent avec d'autres facteurs de stress est similaire \u00e0 la fa\u00e7on dont les humains subissent des comorbidit\u00e9s, par exemple lorsqu'une personne re\u00e7oit un diagnostic de maladie cardiaque. Ils sont plus susceptibles de souffrir \u00e9galement de diab\u00e8te ou d\u2019hypertension art\u00e9rielle, ou des deux, et chacun a un impact sur l\u2019autre. \u00ab C\u2019est similaire \u00e0 la fa\u00e7on dont nous examinons les colonies d\u2019abeilles. Nous examinons tout ce qui se passe dans la colonie, puis comparons ou fusionnons toutes les colonies pour examiner les sch\u00e9mas plus larges de ce qui se passe et la mani\u00e8re dont tout est li\u00e9. Deux ou plusieurs facteurs de stress peuvent r\u00e9ellement s\u2019associer, ce qui entra\u00eene un effet bien plus important sur la sant\u00e9 des abeilles.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignright size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.yorku.ca\/news\/wp-content\/uploads\/sites\/242\/2024\/04\/Beekeepers-sampling-honey-bees-from-colonies-near-canola-crops-inLethbridge-Alberta-for-the-BeeCSI-project.-Photo-by-Shelle-1024x768.jpg\" alt=\"Beekeepers sampling honey bees from colonies near canola crops inLethbridge, Alberta for the BeeCSI project. Photo by Shelley Hoover\" class=\"wp-image-19591\" width=\"391\" height=\"292\" srcset=\"https:\/\/www.yorku.ca\/news\/wp-content\/uploads\/sites\/242\/2024\/04\/Beekeepers-sampling-honey-bees-from-colonies-near-canola-crops-inLethbridge-Alberta-for-the-BeeCSI-project.-Photo-by-Shelle-1024x768.jpg 1024w, https:\/\/www.yorku.ca\/news\/wp-content\/uploads\/sites\/242\/2024\/04\/Beekeepers-sampling-honey-bees-from-colonies-near-canola-crops-inLethbridge-Alberta-for-the-BeeCSI-project.-Photo-by-Shelle-300x225.jpg 300w, https:\/\/www.yorku.ca\/news\/wp-content\/uploads\/sites\/242\/2024\/04\/Beekeepers-sampling-honey-bees-from-colonies-near-canola-crops-inLethbridge-Alberta-for-the-BeeCSI-project.-Photo-by-Shelle-1536x1152.jpg 1536w, https:\/\/www.yorku.ca\/news\/wp-content\/uploads\/sites\/242\/2024\/04\/Beekeepers-sampling-honey-bees-from-colonies-near-canola-crops-inLethbridge-Alberta-for-the-BeeCSI-project.-Photo-by-Shelle-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 391px) 100vw, 391px\" \/><figcaption>A beekeeper samples pollen from the comb of a honey bee hive from a colony located near canola crops in Lethbridge, Alberta for the BeeCSI project. Photo by Shelley Hoover<\/figcaption><\/figure><\/div>\n\n\n\n<p>Du Qu\u00e9bec \u00e0 la Colombie-Britannique, les colonies d\u2019abeilles mellif\u00e8res assurent la pollinisation de certaines des cultures les plus pr\u00e9cieuses du Canada : pommes, huile et graines de canola, bleuets en corymbe et nain, soja, canneberge et ma\u00efs. L\u2019\u00e9tude a port\u00e9 sur plusieurs \u00e9chelles de temps, fournissant de nombreuses mesures r\u00e9p\u00e9t\u00e9es, plut\u00f4t que l\u2019habituel instantan\u00e9 unique dans le temps. L\u2019\u00e9quipe de recherche a d\u00e9couvert que les abeilles mellif\u00e8res \u00e9taient expos\u00e9es en moyenne \u00e0 23 facteurs de stress \u00e0 la fois, qui se combinaient pour cr\u00e9er 307 interactions.<\/p>\n\n\n\n<p>Les abeilles domestiques repr\u00e9sentent une industrie canadienne de plusieurs milliards de dollars. En 2021, les abeilles mellif\u00e8res ont contribu\u00e9 \u00e0 une valeur \u00e9conomique d\u2019environ 7 milliards de dollars en pollinisant les vergers, les l\u00e9gumes, les baies et les graines ol\u00e9agineuses comme le canola, et ont produit entre 75 et 90 millions de livres de miel. D\u00e9terminer quels facteurs de stress doivent \u00eatre surveill\u00e9s ou contr\u00f4l\u00e9s contribuerait grandement \u00e0 d\u00e9velopper les bons outils de gestion pour le bien-\u00eatre des colonies, ce qui manque souvent aux apiculteurs.<\/p>\n\n\n\n<p>La recherche fait partie du projet <a href=\"https:\/\/genomecanada.ca\/project\/beecsi-omic-tools-assessing-bee-health\/\">BEECSI: \u2018OMIC tools for assessing bee health<\/a> (BEECSI : Outils OMIC pour \u00e9valuer la sant\u00e9 des abeilles), qui a re\u00e7u un financement de 10 millions de dollars de G\u00e9nome Canada en 2018. Cette recherche avait pour but d\u2019utiliser des outils g\u00e9nomiques afin de d\u00e9velopper une nouvelle plateforme d'\u00e9valuation et de diagnostic de la sant\u00e9 des abeilles mellif\u00e8res en utilisant des marqueurs sp\u00e9cifiques aux facteurs de stress.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignleft size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.yorku.ca\/news\/wp-content\/uploads\/sites\/242\/2024\/04\/ABEEKE1-1024x768.jpg\" alt=\"researchers sample honey bees at honey bee hives in Lethbridge, Alberta. Photo Shelley Hoover\" class=\"wp-image-19612\" width=\"418\" height=\"313\" srcset=\"https:\/\/www.yorku.ca\/news\/wp-content\/uploads\/sites\/242\/2024\/04\/ABEEKE1-1024x768.jpg 1024w, https:\/\/www.yorku.ca\/news\/wp-content\/uploads\/sites\/242\/2024\/04\/ABEEKE1-300x225.jpg 300w, https:\/\/www.yorku.ca\/news\/wp-content\/uploads\/sites\/242\/2024\/04\/ABEEKE1-1536x1152.jpg 1536w, https:\/\/www.yorku.ca\/news\/wp-content\/uploads\/sites\/242\/2024\/04\/ABEEKE1-2048x1536.jpg 2048w\" sizes=\"auto, (max-width: 418px) 100vw, 418px\" \/><figcaption>A beekeeper samples pollen from the comb of a honey bee hive from a colony located near canola crops (Lethbridge, Alberta) for the BeeCSI project. Photo by Shelley Hoover<\/figcaption><\/figure><\/div>\n\n\n\n<p>Des recherches suppl\u00e9mentaires sont n\u00e9cessaires pour comprendre comment les facteurs de stress interagissent et ont un impact sur la mortalit\u00e9 des abeilles domestiques et la sant\u00e9 des colonies \u00e0 l'avenir, explique French. \"Il s'agit vraiment de d\u00e9terminer lesquels de ces compos\u00e9s pourraient avoir cette relation et comment pouvons-nous tirer parti de cela pour \u00e9tudier ces relations sp\u00e9cifiques.\"<\/p>\n\n\n\n<p>Il faut que ces connaissances arrivent bient\u00f4t: la sant\u00e9 des abeilles domestiques d\u00e9cline, les mortalit\u00e9s de colonies sont importantes et les abeilles sont affect\u00e9es \u00e0 des parasites, \u00e0 des agents pathog\u00e8nes et \u00e0 des facteurs de stress dans le monde entier. Certains apiculteurs du Canada et des \u00c9tats-Unis sont confront\u00e9s \u00e0 une perte hivernale pouvant atteindre 60 pour cent de leurs colonies.<\/p>\n\n\n\n<p>\u00ab Notre \u00e9tude sugg\u00e8re que certaines combinaisons de stresseurs se produisent fr\u00e9quemment \u00bb, ajoute Zayed, \u00ab et nous les voyons encore et encore, mais nous ne savons pas comment ces combinaisons affectent la sant\u00e9 des abeilles. Notre recherche aide \u00e0 prioriser les exp\u00e9riences que nous pouvons d\u00e9sormais rapporter au laboratoire et \u00e9tudier comment ces interactions affectent les abeilles.<\/p>\n\n\n\n<p class=\"has-text-align-center\">-30-<\/p>\n\n\n\n<p><a href=\"https:\/\/www.yorku.ca\/\"><em>York University<\/em><\/a><em>\u202fis a modern, multi-campus, urban university&nbsp;located&nbsp;in Toronto, Ontario. Backed by a diverse group of students, faculty, staff,&nbsp;alumni&nbsp;and partners, we bring a uniquely global perspective to help solve societal challenges, drive positive&nbsp;change&nbsp;and prepare our students for success. York's fully bilingual Glendon Campus is home to Southern Ontario's Centre of Excellence for French Language and Bilingual Postsecondary Education. York\u2019s campuses in Costa Rica and India offer students exceptional transnational learning opportunities and innovative programs. Together, we can make things right for our communities, our planet, and our future.<\/em>&nbsp;<\/p>\n\n\n\n<p><strong>Media Contact:<\/strong>&nbsp;<\/p>\n\n\n\n<p>Sandra McLean, York University Media Relations, 416-272-6317,\u202f<a href=\"mailto:sandramc@yorku.ca\">sandramc@yorku.ca<\/a>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Selon une nouvelle \u00e9tude de l\u2019Universit\u00e9 York, il ne s\u2019agit pas d\u2019un seul pesticide ou virus qui stresse les abeilles domestiques et qui affecte leur sant\u00e9, mais plut\u00f4t de l\u2019exposition \u00e0 un r\u00e9seau complexe de multiples facteurs de stress en interaction rencontr\u00e9s lors de leurs activit\u00e9s de pollinisation et de butinage des cultures.<\/p>\n","protected":false},"author":389,"featured_media":19588,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","footnotes":""},"categories":[339],"tags":[1641],"qualifier":[],"news-author":[1896],"class_list":["post-19620","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-media-releases","tag-les-abeilles-melliferes","news-author-sandra-mclean"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Les abeilles mellif\u00e8res sont confront\u00e9es \u00e0 de multiples facteurs de stress qui affectent leur sant\u00e9 - News@York<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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