{"id":6854,"date":"2021-09-28T16:09:35","date_gmt":"2021-09-28T13:09:35","guid":{"rendered":"http:\/\/www.france.fi\/?p=6854"},"modified":"2021-11-26T14:17:21","modified_gmt":"2021-11-26T12:17:21","slug":"penguins-facing-climate-change","status":"publish","type":"post","link":"https:\/\/www.france.fi\/fr\/sciences-et-universites\/penguins-facing-climate-change\/","title":{"rendered":"Penguins facing climate change"},"content":{"rendered":"
HotPenguin: cool in the water, too hot on land? Risks and consequences of heat stress in penguins facing climate change<\/strong><\/h5>\n

The earth\u2019s environment is changing at an unprecedented rate and climate change is particularly pronounced in polar ecosystems. Animals from polar regions have evolved highly specialized adaptations to cope with cold climates, which put them at high risk regarding the current rapid climate change. This is especially true for penguins who live most of the year in cold water but breed on land in the spring\/summer. Penguins are thereby likely to be threatened by periods of unusually warm temperatures on land.<\/p>\n

While heat stress and its negative consequences on animal health and survival are well characterized in species inhabiting warm regions, no study has investigated whether heat stress could occur in polar regions, and to what extent it could affect individual health and reproduction. To fill this knowledge gap, my current project combines the analysis of data and (blood) samples collected over the past 10 years as part of long-term population monitoring supported by the French Polar Institute.<\/p>\n

I am investigating how body temperature, dehydration state and the gene expression of heat shock proteins vary according to environmental conditions. I am also characterizing the consequences on reproduction and survival of being exposed to unusually warm temperatures using individual monitoring and behavioral observations.<\/p>\n

My research should hopefully help to better predict how penguin populations will respond to future climate change, and raise awareness of scientists, stakeholders, and the general public towards an under-appreciated risk of climate change in polar regions.<\/p>\n

L’\u00e9v\u00e9nement sera diffus\u00e9 en direct sur notre page Facebook<\/a>, puis en replay sur notre cha\u00eene Youtube<\/a>.<\/strong><\/p>\n

Biographie<\/strong><\/h5>\n

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J\u2019ai soutenu ma th\u00e8se au d\u00e9partement \u00c9cologie Physiologie et \u00c9thologie de l\u2019IPHC \u00e0 Strasbourg en 2013, qui portait sur les relations entre conditions environnementales (altitude, temp\u00e9rature, ph\u00e9nologie), m\u00e9canismes cellulaires li\u00e9s au vieillissement (stress oxydant et \u00e9rosion des t\u00e9lom\u00e8res) et performances individuelles (vitesse de croissance, potentiel de reproduction). Lors de mes travaux de th\u00e8se, j’ai utilis\u00e9 diff\u00e9rents mod\u00e8les animaux (oiseaux et mammif\u00e8res) \u00e0 la fois en captivit\u00e9 (diamant mandarin, souris transg\u00e9nique) et dans milieu naturel (m\u00e9sanges et manchot royal). En 2013-14, je suis parti pour ma premi\u00e8re campagne scientifique dans l\u2019archipel sub-Antarctique de Crozet (Terres Australes et Antarctiques Fran\u00e7aises) afin de contribuer \u00e0 un programme d\u2019\u00e9tude \u00e0 long-terme de l\u2019\u00e9cophysiologie du manchot royal (#119 ECONERGY: https:\/\/ipev119.wixsite.com\/econergie119?lang=en<\/a>) soutenu par l\u2019institut polaire fran\u00e7ais (IPEV).<\/p>\n

J\u2019ai ensuite occup\u00e9 un poste d\u2019attach\u00e9 temporaire \u00e0 l\u2019enseignement et la recherche \u00e0 l\u2019Universit\u00e9 d\u2019Angers (2014-15), avant d\u2019int\u00e9grer l\u2019Universit\u00e9 de Glasgow en Ecosse (2016-18) avec un financement Europ\u00e9en Marie Curie pour \u00e9tudier l\u2019influence de l\u2019environnement pr\u00e9natal sur le m\u00e9tabolisme et la vitesse de vieillissement cellulaire chez un mod\u00e8le aviaire captif (caille japonaise). J\u2019ai ensuite migr\u00e9 vers l\u2019Universit\u00e9 de Turku en Finlande en tant que chercheur contractuel, o\u00f9 j\u2019ai continu\u00e9 \u00e0 d\u00e9velopper mes recherches sur des mod\u00e8les aviaires sauvages (m\u00e9sange charbonni\u00e8re, gobe-mouche noir et manchot royal) afin de mieux comprendre l\u2019influence de l\u2019environnement pr\u00e9coce pr\u00e9- et post-natal sur le le m\u00e9tabolisme et la vitesse de vieillissement cellulaire. J\u2019ai obtenu en 2021 le titre de Professeur Adjoint (Docent) de l\u2019Universit\u00e9 de Turku pour mes recherches en \u00e9cophysiologie (https:\/\/antoinestier.wixsite.com\/ageingecophysiology<\/a>). Malgr\u00e9 mes changements d\u2019universit\u00e9s et de pays, j\u2019ai \u00e9t\u00e9 impliqu\u00e9 continuellement depuis 2013 dans le programme #119 ECONERGY d\u00e9di\u00e9 \u00e0 l\u2019\u00e9tude de l\u2019\u00e9cophysiologie du manchot royal.<\/p>\n