Mathilde L. Tissier
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mathildetissier.bsky.social
Mathilde L. Tissier
@mathildetissier.bsky.social
2.2K followers 470 following 20 posts
Scientist, passionate about life, wildlife & vitamin B3! | Conservation, biodiversity, nutrition, agroecology, behavior, health |

Liber Ero (CA), CNRS researcher (FRA), QCBS & adjunct prof. UQÀM (QC) | She/her FR/EN | 🐿️🍁🐝🌻🌾
https://www.sppb-sffb.net/
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mathildetissier.bsky.social
Mathilde L. Tissier @mathildetissier.bsky.social · Mar 6
"As scientists, we know we simply cannot ignore the link between human health and well-being and the health and survival of wild species, ecosystems and our planet. No amount of economic growth is going to insulate us from the continued deterioration of critical life support systems. "
Reposted by Mathilde L. Tissier
benjaminlarue.bsky.social
Incredible opportunity to work towards caribou restoration with an Indigenous-led conservation non-profit in British Columbia! ⛰️🌲
Executive Director
We are seeking an Executive Director to play a leadership role at an Indigenous-led conservation non-profit.
cariboufutures.ca
December 31, 2025 at 4:56 PM
Reposted by Mathilde L. Tissier
thomasgerbet.bsky.social
Des chercheurs et des organisations non gouvernementales de partout au pays publient une lettre, ce matin, pour demander à Ottawa d’abandonner sa nouvelle approche des pesticides. Santé Canada veut mettre fin aux évaluations régulières de ces produits. ici.radio-canada.ca/nouvelle/221...
Pesticides : la fin des évaluations régulières inquiète
Des chercheurs et des organisations non gouvernementales s'inquiètent de l'intention du gouvernement fédéral d'arrêter la réévaluation régulière des pesticides.
ici.radio-canada.ca
December 18, 2025 at 12:36 PM
Reposted by Mathilde L. Tissier
info.radio-canada.ca
Pesticides : la fin des évaluations régulières de Santé Canada inquiète
Ottawa veut remplacer le modèle actuel « laborieux » par une « surveillance continue fondée sur les risques ».
rc.ca
December 18, 2025 at 9:05 AM
Reposted by Mathilde L. Tissier
mathildetissier.bsky.social
Les Québecois.es et les Canadien.ne.s méritent une transparence totale sur la manière avec laquelle leur santé et leur environnement seront protégés.

www.ledevoir.com/opinion/idee...
Affaiblir la surveillance des pesticides met les Canadiens et leur environnement en danger
Supprimer les réévaluations cycliques, pierre angulaire du maintien de la sécurité, serait une erreur.
www.ledevoir.com
December 10, 2025 at 2:39 PM
Reposted by Mathilde L. Tissier
denisreale.bsky.social
Encore une petite vite que vient de passer le gouvernement Carney aux Canadiens : Ottawa va réformer son système de surveillance des pesticides www.ledevoir.com/actualites/e...
Ottawa va réformer son système de surveillance des pesticides
Le fédéral troque les réévaluations cycliques pour une «surveillance moderne fondée sur le risque».
www.ledevoir.com
December 10, 2025 at 3:05 PM
mathildetissier.bsky.social
Les Québecois.es et les Canadien.ne.s méritent une transparence totale sur la manière avec laquelle leur santé et leur environnement seront protégés.

www.ledevoir.com/opinion/idee...
Affaiblir la surveillance des pesticides met les Canadiens et leur environnement en danger
Supprimer les réévaluations cycliques, pierre angulaire du maintien de la sécurité, serait une erreur.
www.ledevoir.com
December 10, 2025 at 2:39 PM
Reposted by Mathilde L. Tissier
info.radio-canada.ca
Glyphosate : Santé Canada ne s’inquiète pas d’avoir utilisé une fausse étude
Une revue scientifique a retiré l'étude, soi-disant indépendante, qui serait, en fait, l'œuvre du fabricant.
rc.ca
December 4, 2025 at 9:46 PM
Reposted by Mathilde L. Tissier
hansonmark.bsky.social
We wrote the Strain on scientific publishing to highlight the problems of time & trust. With a fantastic group of co-authors, we present The Drain of Scientific Publishing:

a 🧵 1/n

Drain: arxiv.org/abs/2511.04820
Strain: direct.mit.edu/qss/article/...
Oligopoly: direct.mit.edu/qss/article/...
A table showing profit margins of major publishers. A snippet of text related to this table is below. 1. The four-fold drain 1.1 Money Currently, academic publishing is dominated by profit-oriented, multinational companies for whom scientific knowledge is a commodity to be sold back to the academic community who created it. The dominant four are Elsevier, Springer Nature, Wiley and Taylor & Francis, which collectively generated over US$7.1 billion in revenue from journal publishing in 2024 alone, and over US$12 billion in profits between 2019 and 2024 (Table 1A). Their profit margins have always been over 30% in the last five years, and for the largest publisher (Elsevier) always over 37%. Against many comparators, across many sectors, scientific publishing is one of the most consistently profitable industries (Table S1). These financial arrangements make a substantial difference to science budgets. In 2024, 46% of Elsevier revenues and 53% of Taylor & Francis revenues were generated in North America, meaning that North American researchers were charged over US$2.27 billion by just two for-profit publishers. The Canadian research councils and the US National Science Foundation were allocated US$9.3 billion in that year. A figure detailing the drain on researcher time. 1. The four-fold drain 1.2 Time The number of papers published each year is growing faster than the scientific workforce, with the number of papers per researcher almost doubling between 1996 and 2022 (Figure 1A). This reflects the fact that publishers’ commercial desire to publish (sell) more material has aligned well with the competitive prestige culture in which publications help secure jobs, grants, promotions, and awards. To the extent that this growth is driven by a pressure for profit, rather than scholarly imperatives, it distorts the way researchers spend their time. The publishing system depends on unpaid reviewer labour, estimated to be over 130 million unpaid hours annually in 2020 alone (9). Researchers have complained about the demands of peer-review for decades, but the scale of the problem is now worse, with editors reporting widespread difficulties recruiting reviewers. The growth in publications involves not only the authors’ time, but that of academic editors and reviewers who are dealing with so many review demands. Even more seriously, the imperative to produce ever more articles reshapes the nature of scientific inquiry. Evidence across multiple fields shows that more papers result in ‘ossification’, not new ideas (10). It may seem paradoxical that more papers can slow progress until one considers how it affects researchers’ time. While rewards remain tied to volume, prestige, and impact of publications, researchers will be nudged away from riskier, local, interdisciplinary, and long-term work. The result is a treadmill of constant activity with limited progress whereas core scholarly practices – such as reading, reflecting and engaging with others’ contributions – is de-prioritized. What looks like productivity often masks intellectual exhaustion built on a demoralizing, narrowing scientific vision. A table of profit margins across industries. The section of text related to this table is below: 1. The four-fold drain 1.1 Money Currently, academic publishing is dominated by profit-oriented, multinational companies for whom scientific knowledge is a commodity to be sold back to the academic community who created it. The dominant four are Elsevier, Springer Nature, Wiley and Taylor & Francis, which collectively generated over US$7.1 billion in revenue from journal publishing in 2024 alone, and over US$12 billion in profits between 2019 and 2024 (Table 1A). Their profit margins have always been over 30% in the last five years, and for the largest publisher (Elsevier) always over 37%. Against many comparators, across many sectors, scientific publishing is one of the most consistently profitable industries (Table S1). These financial arrangements make a substantial difference to science budgets. In 2024, 46% of Elsevier revenues and 53% of Taylor & Francis revenues were generated in North America, meaning that North American researchers were charged over US$2.27 billion by just two for-profit publishers. The Canadian research councils and the US National Science Foundation were allocated US$9.3 billion in that year. The costs of inaction are plain: wasted public funds, lost researcher time, compromised scientific integrity and eroded public trust. Today, the system rewards commercial publishers first, and science second. Without bold action from the funders we risk continuing to pour resources into a system that prioritizes profit over the advancement of scientific knowledge.
November 11, 2025 at 11:52 AM
Reposted by Mathilde L. Tissier
sebastianlakner.bsky.social
Next week in the EU-Parliament (11.11.2025, 13:30-15), we will discuss the future of sustainable farming in Europe and the alignment or non-alignment of the CAP with sustainability criteria, based on @agtransect.bsky.social and #CAP4GI.
Announcement of the event on 11.11.2025, 13:30-15:00 in the EU- Parliament "How can the CAP drive sustainable farming practices: Voices from farmers and science, and an evaluation of the CAP proposal"
November 4, 2025 at 7:57 AM
Reposted by Mathilde L. Tissier
draverbee.bsky.social
I cannot believe our work is finally out there and in @journal-evo.bsky.social ! This was an enormous group effort!

We provide an updated estimate of the number of buzz pollinated angiosperm species, genera, and families, look at consequences for diversification, number of transitions, and more!
Circular phylogeny showing the branching pattern of 30k plant species with lineages with poricidal and non poricidal taxa indicated. A small subset of poricidal taxa are illustrated around the phylogeny.
October 23, 2025 at 5:34 AM
Reposted by Mathilde L. Tissier
andreapaz.bsky.social
October 10, 2025 at 3:14 PM
Reposted by Mathilde L. Tissier
martinswarren.bsky.social
The new European Butterfly Red List is published today, with worrying findings. Over 1/4 (28%) of Europe’s 442 species are threatened with extinction or are close to being so. The situation is far worse for our 148 endemic species, 40% are now threatened or nearly so www.bc-europe.eu/webpage.php?...
Front cover of the European Butterfly Red List, showing Polyommatus humedasae. The report can be downloaded at https://www.bc-europe.eu/webpage.php?name=red-list-butterflies-2025
October 11, 2025 at 9:17 AM
Reposted by Mathilde L. Tissier
dorianguinard.bsky.social
"L’état de conservation des abeilles sauvages, des papillons et autres pollinisateurs européens est désastreux, a réagi Jessika Roswall, la commissaire européenne à l’environnement".

Sans doute l'article le plus important du WE.
Quand va-t-on vraiment réagir ?

www.lemonde.fr/planete/arti...
Les papillons et les abeilles sauvages toujours plus menacés en Europe
Plusieurs dizaines de nouvelles espèces risquent la disparition, selon l’Union internationale pour la conservation de la nature, qui vient de mettre à jour sa liste rouge.
www.lemonde.fr
October 11, 2025 at 1:13 PM
Reposted by Mathilde L. Tissier
biologieudem.bsky.social
Jeudi le 16 octobre à 11h30 EST, @andreapaz.bsky.social, Malgorzata Anna Gazda, Matthew Regan et Daniel Kierzkowski présenteront un séminaire de sciences biologiques avec comme invitée @mathildetissier.bsky.social. Envoyez-nous un message privé pour obtenir le lien Zoom.
October 10, 2025 at 12:47 PM
Reposted by Mathilde L. Tissier
erc.europa.eu
Are you employed by a public organisation in Europe, have experience in #communication and would like to work with the ERC for a few years?

We may have the #job for you!

All details 👉 link.europa.eu/7GNMjc

#secondment #media #events #website #position #temporary
September 18, 2025 at 8:00 AM
Reposted by Mathilde L. Tissier
invertevo.bsky.social
Please share with your big picture colleagues.
Join us @umontreal.ca as an Assistant Professor of Global Change Biology.
rh-carriere-dmz-eng.synchro.umontreal.ca/psc/rhprpr9_...
Careers
The applicant will contribute to strengthening research on global change in the Department of Biological Sciences and will participate in the integration of biology training into the faculty program in Environment and Sustainable Development (ESD).
rh-carriere-dmz-eng.synchro.umontreal.ca
September 8, 2025 at 6:49 PM
Reposted by Mathilde L. Tissier
carlyziter.bsky.social
We’re recruiting for a multi-university (and ECCC) cross-city project on urban biodiversity, connectivity, and ecosystem services: 1) a Concordia or U Laval MSc student (PhD possible), 2) a UBC MSc student, 3) a postdoc.

I’ll link to each position below. Please share broadly!
August 16, 2025 at 8:16 PM
Reposted by Mathilde L. Tissier
afp.com
⚫️ La Direction de l’AFP partage l’angoisse exprimée par la SDJ quant à la situation effroyable de ses collaborateurs dans la bande de Gaza ⬇️
July 21, 2025 at 9:13 PM
Reposted by Mathilde L. Tissier
madhupai.bsky.social
Please share!

Amazing opportunity at @mcgill.ca

We are looking to recruit an internationally recognized, interdisciplinary scientist with a strong track record in innovation and research to direct a new program in climate, environment, and health

mcgill.wd3.myworkdayjobs.com/en-US/McGill...
July 17, 2025 at 10:38 AM
Reposted by Mathilde L. Tissier
mathildetissier.bsky.social
Une min pour signer.

"Pour la santé, la sécurité, l’intelligence collective"

Parce que "La Loi Duplomb est une aberration scientifique, éthique, environnementale et sanitaire"

Et qu'il est écrit dans la loi "Chacun a le droit de vivre dans un environnement équilibré et respectueux de la santé"
July 16, 2025 at 9:38 PM
mathildetissier.bsky.social
Une min pour signer.

"Pour la santé, la sécurité, l’intelligence collective"

Parce que "La Loi Duplomb est une aberration scientifique, éthique, environnementale et sanitaire"

Et qu'il est écrit dans la loi "Chacun a le droit de vivre dans un environnement équilibré et respectueux de la santé"
July 16, 2025 at 9:38 PM
Reposted by Mathilde L. Tissier
philstevenson.bsky.social
Negative ecological impacts of honeybees begin at densities below recommended levels for crop pollination. doi.org/10.1111/1365...
Negative ecological impacts of honeybees begin at densities below recommended levels for crop pollination
The ecological consequences of high-density honeybee management are significant, calling for a re-evaluation of pollination strategies in agricultural landscapes. Setting evidence-based hive density ....
doi.org
July 16, 2025 at 4:43 AM
Reposted by Mathilde L. Tissier
evoecoamy.bsky.social
Keep in mind that this is a list appropriate for Europe (some invasive plants in NA) but great to see this!
July 14, 2025 at 12:35 PM
Reposted by Mathilde L. Tissier
wishartae.bsky.social
President’s Award for Research Excellence recipient @elenabennett.bsky.social discusses the transition of systems ecology thinking from “nature for itself” to today’s “people with nature” in her plenary at #CSEE2025 @csee-sceemtgs.bsky.social
Person speaks at lectern in front of conference hall audience. Two screens show image of farmland
July 7, 2025 at 1:03 PM
Reposted by Mathilde L. Tissier
emtomology.bsky.social
In January 2024, 200 monarchs were found dead or dying on the ground at a CA overwintering site. The likely culprit? Nearby residential/commercial pesticide use. 1/ academic.oup.com/etc/advance-...
Pyrethroid insecticides implicated in mass mortality of monarch butterflies at an overwintering site in California
Abstract. Since the 1980s, monarch butterfly (Danaus plexippus plexippus) populations across North America have declined by 80–95%. Although several studie
academic.oup.com
July 2, 2025 at 1:22 PM