Mathilde L. Tissier
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mathildetissier.bsky.social
Mathilde L. Tissier
@mathildetissier.bsky.social
2.2K followers 470 following 22 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. "
molszyns.bsky.social Martin Z. Olszynski @molszyns.bsky.social · Mar 6
In the calls to defend Canada, we’re getting a one-dimensional perspective: increased resource extraction & exploitation.

But what if your #cdnpoli includes its wilderness, which sustains us & the good life we enjoy here? Thanks @wcscanada.bsky.social for this piece:

thenarwhal.ca/opinion-worl...
World Wildlife Day sparks call for bolder approach | The Narwhal
A leading Canadian scientist says cutting ‘red tape’ and doubling down on extractive resource development won’t help wildlife — or humans
thenarwhal.ca
Reposted by Mathilde L. Tissier
estelle-ravel.bsky.social
Do agricultural diversification practices pay off in the long run? Our new paper synthesizes 100+ years of evidence showing that diversification practices become more profitable over time and delivers growing benefits for soils, biodiversity, and carbon.
www.nature.com/articles/s41...
Long-term agricultural diversification increases financial profitability, biodiversity, and ecosystem services: a second-order meta-analysis - Nature Communications
Feeding a growing population while protecting the environment is a major global challenge. This study suggests that agricultural diversification enhances long-term profitability, biodiversity, soil he...
www.nature.com
January 31, 2026 at 7:27 AM
Reposted by Mathilde L. Tissier
ledevoir.com
L’ex-présentateur de CNN a été interpellé par des agents fédéraux à Los Angeles, où il couvrait la cérémonie des Grammy.
Le journaliste Don Lemon arrêté après avoir filmé une manifestation dans une église
www.ledevoir.com
January 30, 2026 at 4:03 PM
Reposted by Mathilde L. Tissier
biodivpathways.bsky.social
The Boreal Avian Modelling Centre is hiring a postdoctoral fellow to develop high-resolution, Canada-wide models of waterbird density.

The models will be used as indicators of local wetland health and large-scale environmental change.

Open until filled!

borealbirds.ca/postdoctoral...
January 29, 2026 at 4:09 PM
Reposted by Mathilde L. Tissier
mathildetissier.bsky.social
"Quand le monde va mal, la nature nous offre un refuge où nous pouvons respirer.

[...] Mais en attendant sa protection officielle, la nature retient son souffle.

À nous maintenant de lui donner l’air dont elle a besoin."
naturequebec.bsky.social Nature Québec @naturequebec.bsky.social · 12d
LETTRE OUVERTE 📣 "Les crises s'accumulent. Dans ce contexte, la nature nous offre de rares moments de répit. Encore faut-il que ces milieux naturels existent. Et surtout, qu’ils soient protégés." Un texte de notre directrice générale @aasimard.bsky.social dans La Presse ce matin.
Protection de la nature | Notre refuge quand le monde s’emballe
Ces temps-ci, difficile d’ignorer que le monde semble aller de mal en pis. Les crises s’accumulent et l’incertitude économique pèse sur bien des familles. L’actualité est lourde à porter et, à force d...
www.lapresse.ca
January 29, 2026 at 3:24 PM
mathildetissier.bsky.social
"Quand le monde va mal, la nature nous offre un refuge où nous pouvons respirer.

[...] Mais en attendant sa protection officielle, la nature retient son souffle.

À nous maintenant de lui donner l’air dont elle a besoin."
naturequebec.bsky.social Nature Québec @naturequebec.bsky.social · 12d
LETTRE OUVERTE 📣 "Les crises s'accumulent. Dans ce contexte, la nature nous offre de rares moments de répit. Encore faut-il que ces milieux naturels existent. Et surtout, qu’ils soient protégés." Un texte de notre directrice générale @aasimard.bsky.social dans La Presse ce matin.
Protection de la nature | Notre refuge quand le monde s’emballe
Ces temps-ci, difficile d’ignorer que le monde semble aller de mal en pis. Les crises s’accumulent et l’incertitude économique pèse sur bien des familles. L’actualité est lourde à porter et, à force d...
www.lapresse.ca
January 29, 2026 at 3:24 PM
mathildetissier.bsky.social
All my condoleances. That is a tragic loss, deeply saddening.
January 27, 2026 at 1:07 AM
Reposted by Mathilde L. Tissier
ledevoir.com
Elle a été responsable des portefeuilles du sport et des sciences de 2015 à 2019.
L’ex-ministre libérale Kirsty Duncan s’éteint à l’âge de 59 ans
www.ledevoir.com
January 26, 2026 at 11:33 PM
Reposted by Mathilde L. Tissier
bio-diverse.bsky.social
📣 Join us - we’re hiring an engagement officer for the CAN BON 🍁 initiative!

An effort to transform Canada’s capacity to mobilize its knowledge about the changing state of nature.

See the job posting here👇
www.linkedin.com/posts/andrew...
📣 We are hiring! Please share far and wide... I am seeking an Engagement Officer to support the emergence of a Canadian Biodiversity Observation Network (CAN BON). This position is a unique… | Andrew ...
📣 We are hiring! Please share far and wide... I am seeking an Engagement Officer to support the emergence of a Canadian Biodiversity Observation Network (CAN BON). This position is a unique opportunit...
www.linkedin.com
January 23, 2026 at 8:19 PM
Reposted by Mathilde L. Tissier
thomasgerbet.bsky.social
L’usine Terrapure, qui recycle des batteries au plomb sur la rive-sud de Montréal, n'a pas seulement pollué le Saint-Laurent; elle a aussi contaminé la majorité de ses travailleurs, révèle un rapport inédit de la Santé publique. ici.radio-canada.ca/nouvelle/222... avec @mariannedepelteau.bsky.social
Terrapure a contaminé au plomb le fleuve et des travailleurs
En plus de polluer le fleuve, l’usine Terrapure, de Sainte-Catherine, a contaminé au plomb la majorité de ses travailleurs, révèle un rapport de santé publique.
ici.radio-canada.ca
January 20, 2026 at 12:46 PM
Reposted by Mathilde L. Tissier
ledevoir.com
La capture de Nicolás Maduro a causé la mort de 55 militaires cubains et vénézuéliens.
La présidente par intérim du Venezuela entame son mandat, l’ONU critique l’opération américaine
www.ledevoir.com
January 7, 2026 at 12:32 AM
Reposted by Mathilde L. Tissier
environment.theguardian.com
Stingless bees from the Amazon granted legal rights in world first
Stingless bees from the Amazon granted legal rights in world first
Planet’s oldest bee species and primary pollinators were under threat from deforestation and competition from ‘killer bees’
www.theguardian.com
December 29, 2025 at 2:01 PM
Reposted by Mathilde L. Tissier
antoinestier.bsky.social
Please repost: 🚨Field assistant position 🐧

We offer a 14-months field assistant position through the French Polar Institute to work on king penguin ecophysiology and behavioral ecology.

Requirements: EU citizen < 30yo having experience with harsh fieldwork & wild bird/mammal handling/sampling.
January 5, 2026 at 1:37 PM
Reposted by Mathilde L. Tissier
thecowbirdlab.bsky.social
Academia friendly peer-reviewed journals in EEB: academic.oup.com/jeb/advance-...
Time to publish responsibly: DAFNEE, a database of academia-friendly journals in ecology and evolutionary biology
Abstract. The current economics of scientific publishing reveal a profound imbalance: academia pays prices far exceeding the actual costs of publication. R
academic.oup.com
January 2, 2026 at 2:49 PM
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