Recently switched to Bluesky: https://teapaw.org/t.co/xxct3Ew4nu // Postdoctoral researcher working on snow-wildlife interactions ❄️🐹
Université Laval, Canada
Joined March 2017
- Tweets25
- Following146
- Followers90
- Likes158
Our last study on the cover of Ecology 🐹❄️
Say hello to our October cover star! This Arctic lemming was photographed by @MathildePoir during a study that explores how winter weather events like melt-freeze and rain-on-snow affect these high-latitude critters
Browse the full issue here: esajournals.onlinelibrary.wi…
ALT Cover of the October 2025 issue of Ecology
Excited to share our new paper in @ESAEcology ! ❄️
Our 17-year study shows that even moderate winter events (rain-on-snow, melt-feeze) can negatively influence lemming winter reproduction and population growth. 🐹
Open-access available here: 🔗 doi.org/10.1002/ecy.70216
De l'importance de la façon dont on aborde les changements climatiques 🌎💙🌱
#JourDeLaTerre
Malgré la crise climatique, un meilleur demain est possible rc.ca/T5qxP0
Un article sur notre film! ❄️🩵
Nittaituq, un court métrage sur la résilience des Inuits @FSGulaval @sentinelle_nord @cen_nord @Institutnord ow.ly/3MZ450Qvtpl
Mathilde Poirier retweeted
Prenez part à la #NuitPolaire, une soirée de réseautage rassemblant les différentes entités de recherche nordique de l' @universitelaval ❄️
bit.ly/48F87Js
@QuebecOcean #amundsen @cen_nord @Institutnord @arcticnet @UMI_TAKUVIK @_CIERA_CIERA_ #sentinellenord
Mathilde Poirier retweeted
Quand l'ours blanc chasse comme les requins au cinéma: des chercheurs décrivent une technique inédite utilisée par l'ours blanc pour chasser l'oie des neiges
@cen_nord @DavBolduc @dulude_debroin @MathildePoir @FSGulaval
bit.ly/46ygViB
New paper in @SpringerEcology! 🐹❄️
Our study shows the importance of deep snow in #lemming habitats, providing them with favorable conditions. But there's a tradeoff: deeper snowpack means tougher snow, impacting lemming winter reproduction negatively.
➡️rdcu.be/dfhux
Mathilde Poirier retweeted
Are you interested in Predator-prey ecology | Machine learning | Movement analysis | Modelling?
Our group is hosting an advanced field school in computational ecology🤖+🐻
Join us at the end of May, in a cozy cottage, by a beautiful lake, in the boreal forest 🌲
🙏RT | info 👇
ALT A poster with a humanoid looking fox and rabbit holding a computer.
ALT A chair on a deck by the lake where the summer school is taking place.
Joignez vous à nous pour cette école doctorale sur la neige! ❄️
Cette école de pointe se penchera sur les processus dynamiques de la neige arctique et sa relation avec l'humain, le climat et l'environnement dans un Nord en mutation. ❄️
Soumettez avant le 15 janvier : bit.ly/3Oh4UGt
#sentinellenord @USherbrooke @CRSNG_NSERC
Mathilde Poirier retweeted
OFFRE DE MAITRISE à l'@UQTR sous la supervision de Christophe Kinnard et de Florent Dominé
❄ Interactions neige-végétation dans l'Arctique ❄
Mathilde Poirier retweeted
Les intrigantes variations cycliques des lemmings n'ont pas fini de surprendre @museedelanature @FSGulaval @cen_nord bit.ly/3IAT6Ms
Shrub branches are great thermal conductor (about 20X more than snow!). Those shrubs can lead to a cooling of the permafrost in winter (thermal bridging by frozen branches) and a warming in spring (light/heat absorption by buried branches). ❄️ See our new study in @NatureGeosci
Article: Arctic shrubs cool permafrost in winter by acting as a thermal bridge through the snowpack
nature.com/articles/s41561-0…
Free to read: rdcu.be/cRgk3
ALT Schematic showing how, in spring, light absorption by shallow buried shrub branches heats up the branches
Mathilde Poirier retweeted
#DYK that the lemming plays a bigger role in the arctic ecosystem than the polar bear? Learn how climate change is affecting the Arctic’s smallest mammal.
#Arcticmammal #arcticecosystem
canada.ca/en/polar-knowledge…
Mathilde Poirier retweeted
#DYK that #climatechange is making it harder for #lemmings to dig tunnels in the snow? Read tinyurl.com/3rhryuyc to find out why that’s a big deal in the #Arctic
@universitelaval @MuseumofNature
Mathilde Poirier retweeted
1/2 #DYK that Lemmings are small mammals with a big influence on Arctic ecosystems? Most arctic predators eat lemmings.
I have the chance to be involve in this amazing multidisciplinary project! Check out our new paper about the challenges and design of a camera trap filming lemmings under the snow! 🐹🎥 @sentinelle_nord
By applying new solutions to their camera traps, these researchers obtained the first videos of lemmings under the snow during the Arctic winter! @cen_nord @universitelaval
buff.ly/3dUJI7O
Mathilde Poirier retweeted
Le labbe à longue queue, un grand voyageur qui défie la théorie @yannick_seyer @cen_nord @FSGulaval @Hawk_Mountain bit.ly/3pGwbq4
Mathilde Poirier retweeted
From our Ecosphere Naturalist track:
#Lemmings spend much of their lives tunneling through snow; Arctic #ClimateChange may harden the snowpack, posing an energetic challenge
doi.org/10.1002/ecs2.3835
#BehavioralEcology #OpenAccess
@MathildePoir @sentinelle_nord @cen_nord
ALT Observation box used to collect snow samples and conduct digging trials. The sampled snowpack was divided into three different snow layers based on visual stratigraphy
Mathilde Poirier retweeted
La neige durcie fait la vie dure aux lemmings @FSGulaval @MathildePoir @POLAIRECanada bit.ly/3xGTYtu
