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Romain Bertrand

@romainbertrand.bsky.social
591 followers 80 following 25 posts

Researcher in global change ecology (mainly on forest ecosystem) at the CRBE lab (Toulouse, France) @cnrs.bsky.social

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Romain Bertrand @romainbertrand.bsky.social · 29/06/2026
🚨Want to investigate the eco-evolutionary dynamics of Fagus sylvatica in the Pyrenees as a postdoc? Submit your application this week—deadline approaching fast! emploi.cnrs.fr/Offres/CDD/U...
emploi.cnrs.fr
Portail Emploi CNRS - Job offer - Postdoctoral position (M/F) on the adaptive dynamics of European beech in response to climate change
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Proceedings of the National Academy of Sciences @pnas.org · 03/04/2026
Climate niche models underestimate the speed with which species move in response to climate change, according to comparisons between the models and observed shifts for more than 3,500 species. Median rates were four times faster than predicted. In PNAS: ow.ly/Mokn50YCqty
Climate niche models correctly predicted the direction of some empirically documented range shifts for bird species in the genus Tyrannus.
CREDIT: Jeewantha Bandara.
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Jonathan Lenoir 🌳🌲🌴 @jonlen.bsky.social · 07/04/2026
We even made the cover & title: "Humans, micro-organisms, fauna, flora... 2100, the Earth, the great biodiversity redistribution has started" This is the April issue of S&V, available in 🇨🇵 bookstores 🤩 @cnrs.fr @upjv-univ.bsky.social @cnrsecologie.bsky.social
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Jonathan Lenoir 🌳🌲🌴 @jonlen.bsky.social · 07/04/2026
The #BioShifts working group made it to Science & Vie 🤩 I used to read this French scientific outreach magazine back in the late 1990's 😍 My teenager me couldn't imagine that 😅 I am so proud for the #BioShifts team 🌳🌲🌴🪻🐸🦋🪸🐠 Our research funding body #FRB will also be happy 😁 @frbiodiv.bsky.social
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Global Change Biology @globalchangebio.bsky.social · 02/04/2026
Biodiversity Insurance of Forest Productivity Has Strengthened Under Recent Climate Change 🔗 buff.ly/KP872bb
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Romain Bertrand @romainbertrand.bsky.social · 07/04/2026
We are seeking a postoc for simulating future lymnaeid snail and fasciolosis distributions in southern France through a species range shift process-based model. The position is based in Montpellier (France) and the posdoc will be supervised by Annia Alba. 🚨deadline: April 20th
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Jonathan Lenoir 🌳🌲🌴 @jonlen.bsky.social · 02/04/2026
After 4yr of hard work to compare empirical species range positions' shifts from the #BioShifts DB against predictions from niche-based models trained on climate & tailored to methodological attributes of each species & study, we found species shift ahead of models' predictions! 🦋 shorturl.at/vOmCw
shorturl.at
Species range shifts often speed ahead of their modeled climatic niches | PNAS
Anticipating how species distributions will shift with climate change is key for biodiversity conservation and management. Commonly, species’ range...
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Nicolas Mouquet @nmouquet.bsky.social · 30/03/2026
Huge thanks to #BioScience for featuring our paper "Too Cute to Be Wild" on the cover of their March issue! 🐻🧸✨ doi.org/10.1093/bios... Never thought our work on teddy bears would take us this far! 💚 with @thierrybrassac.bsky.social, N. Blanc, N. Casajus, and A.S. Tribot 👏 🧪🌐🌍🦤
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Brunno Oliveira @666brunno999.bsky.social · 28/03/2026
Does genetic diversity help species keep up with, or tolerate, climate change? 🌡️🌍 Our new BioShifts paper shows that high genetic diversity 🧬: 1) Reduces range contractions under fast warming 2) Accelerates range expansion under moderate warming onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
Genetic Diversity Impacts Climate‐Induced Species Range Shifts
Genetic diversity may buffer species against climate-driven range contractions and facilitate expansions, but its role at a global scale remains unclear. Using 4673 range shift estimates for 1888 spe....
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Société Botanique de France @societebotaniquedefrance.fr · 27/03/2026
Nous vous avions présenté un article montrant que les forêts européennes qui présentent une plus grande diversité d’espèces sont plus denses et plus productives, en particulier dans les climats extrêmes :
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Romain Bertrand @romainbertrand.bsky.social · 27/03/2026
A brillant work from the BioShifts group led by @666brunno999.bsky.social and Jonathan Rolland! @frbiodiv.bsky.social @cnrsecologie.bsky.social @cnrs.fr @tulip-gs-labex.bsky.social @utoulouse.bsky.social
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Romain Bertrand @romainbertrand.bsky.social · 27/03/2026
Genetic diversity shapes climate-driven species redistribution: 🚨Genetic diversity slows species range shifts, especially at the trailing edge and under rapid climate change—consistent with the evolutionary rescue hypothesis. onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
Genetic Diversity Impacts Climate‐Induced Species Range Shifts
Genetic diversity may buffer species against climate-driven range contractions and facilitate expansions, but its role at a global scale remains unclear. Using 4673 range shift estimates for 1888 spe...
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Jonathan Lenoir 🌳🌲🌴 @jonlen.bsky.social · 27/03/2026
The thermophilisation rate of plant communities in response to global warming is 5 times faster on alpine summits than in forests or grasslands across 🇪🇺 This finding corroborates former findings on the greater likelihood for upslope than poleward range shifts of plants 🌳🌲☘️🌾🪻🌼 shorturl.at/gc0TJ
shorturl.at
Contrasting thermophilization among forests, grasslands and alpine summits - Nature
Analyses of large-scale, multitaxa and long-term thermophilization patterns in forests, grasslands and alpine summits across Europe provide insight into shifts in community composition among different...
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Romain Bertrand @romainbertrand.bsky.social · 12/03/2026
@cnrsecologie.bsky.social @utoulouse.bsky.social @tulip-gs-labex.bsky.social
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Romain Bertrand @romainbertrand.bsky.social · 12/03/2026
As France becomes drier 🥵, mixed forests 🌲🌳 are proving more resilient: their growth declines less than in monospecific forests.
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Romain Bertrand @romainbertrand.bsky.social · 12/03/2026
Happy to see this work finally out in @globalchangebio.bsky.social ! With @xaviermorin.bsky.social we showed that species richness is a key factor for the stability of forest biomass production 🌲 onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
Biodiversity Insurance of Forest Productivity Has Strengthened Under Recent Climate Change
Using data from forests across France, we show that forests with a greater diversity of tree species are better able to maintain their productivity as conditions become drier due to climate change. H...
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CNRS Écologie & Environnement @cnrsecologie.bsky.social · 11/03/2026
#RésultatScientifique🔎 Une étude publiée dans Global Change Biology montre que les forêts tempérées riches en espèces d’arbres résistent mieux au stress hydrique et maintiennent plus durablement leur productivité face au changement climatique. ▶️ www.inee.cnrs.fr/fr/cnrsinfo/...
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Nicolas Mouquet @nmouquet.bsky.social · 09/03/2026
‪ 🌳 Do you want to contribute to research on how humans perceive forests? Take this quick, anonymous 10-min survey 🌲 👉 www.biodiful.org#/forest This will help us explore how people experience forest biodiversity! Please share on 🦋 & tag @biodiful.bsky.social to reach more participants 🙏💚 🌐🌍🦤🦑🪴🍁🧪
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Romain Bertrand @romainbertrand.bsky.social · 05/01/2026
@xaviermorin.bsky.social @cnrs.fr @cnrsecologie.bsky.social @utoulouse.bsky.social @agencerecherche.bsky.social PhD funded by PEPR Forestt - PC MONITOR www.pepr-forestt.org
pepr-forestt.org
PEPR-FORESTT
Accueil
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Romain Bertrand @romainbertrand.bsky.social · 05/01/2026
🚨 We are seeking a PhD student to model forest biodiversity trajectories under global change, explicitly accounting for interactions between forest microclimate, forest stand dynamics, and species redistribution. Location: CRBE laboratory in Toulouse (France). emploi.cnrs.fr/Offres/Docto...
emploi.cnrs.fr
Portail Emploi CNRS - Offre d'emploi - PhD position (M/F) in forest biodiversity modelling
Assurez-vous que votre profil candidat soit correctement renseigné avant de postuler
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Christophe Cassou @cassouman40.bsky.social · 21/08/2025
Quelle insolence! Voila maintenant que l’atmosphère nous tire la langue après avoir rasé la moustache! 👀😜
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Romain Bertrand @romainbertrand.bsky.social · 10/08/2025
Thank you to ONF and mayors for opening the doors of their forests. @cnrsecologie.bsky.social @universitetoulouse.bsky.social
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Romain Bertrand @romainbertrand.bsky.social · 10/08/2025
A lot of work done, and more to come until September! And a lot of fun too with PhD student and interns.
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Romain Bertrand @romainbertrand.bsky.social · 10/08/2025
We are collecting leaves 🍃 for whole genome sequencing that we will confront to dendrochronological, dendrometric, edaphic and microclimate data.
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Romain Bertrand @romainbertrand.bsky.social · 10/08/2025
Since early July, my team and I are exploring the forests of the French Pyrenees🌳🌲. Why? We are trying to understand whether beech are adapting to climate change at its elevational trailing and leading edges.
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Global Change Biology @globalchangebio.bsky.social · 04/08/2025
OPINION Counterintuitive Range Shifts May Be Explained by Climate Induced Changes in Biotic Interactions 🔗 buff.ly/4Uf5v3p
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Jonathan Lenoir 🌳🌲🌴 @jonlen.bsky.social · 24/07/2025
Together w/ Fabien Spicher to install #TMS4 loggers to record microclimatic conditions across the 💯 permanent 🌳🌲 plots of the #RENECOFOR network spread across 🇨🇵 Paired w/ soundscape loggers 🦉🦇 installed by Kevin Darras #PEPR #FORESTT PC #MONITOR Tasks 3.1 & 3.2 to feed models from Task 3.4 🛰🌳🌐🧪
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Christophe Cassou @cassouman40.bsky.social · 30/06/2025
Un jour de #VigilanceRouge en 🇫🇷! Belle ironie du calendrier! M. @gabriel-attal.bsky.social , dans un TGV un soir revenant de Dijon, vous m'aviez promis de faire tout en tant que grpe minoritaire pour préserver le climat/biodiv. Vs souvenez-vous? Amère trahison! #Triste www.lemonde.fr/planete/arti...
lemonde.fr
Loi Duplomb : députés et sénateurs s’entendent sur un compromis qui prévoit la réintroduction de l’acétamipride, un pesticide interdit dans l’agriculture depuis 2018
Un ultime vote sur le texte adopté en commission mixte paritaire est prévu mercredi au Sénat puis mardi 8 juillet à l’Assemblée nationale.
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Global Change Biology @globalchangebio.bsky.social · 12/06/2025
Projected Increases in Climate Extremes Across Global Vertebrate Diversity Hotspots 🔗 buff.ly/md65uGL @zacksteel.bsky.social
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Nicolas Mouquet @nmouquet.bsky.social · 19/06/2025
Conserving the beauty of the world’s reef fish assemblages 💙 Check out our last paper @pnas.org We mapped what makes reef fish assemblages beautiful worldwide! 🌍 MPAs boost aesthetic, and developing countries have a chance to align conservation with local benefits doi.org/10.1073/pnas... 🌐🧪🦑🦤
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CNRS @cnrs.fr · 17/06/2025
À la suite des recommandations de son Comité d’éthique, le CNRS vient de publier un guide de l’expression publique à destination de ses personnels scientifiques. Véritable boîte à outils, ce document les accompagne dans leurs prises de parole médiatiques www.cnrs.fr/fr/actualite...
cnrs.fr
Un guide pour accompagner l’expression publique des scientifiques du CNRS
Afin d’aider les personnels scientifiques qui le souhaitent dans leurs prises de parole médiatiques, le CNRS leur propose un guide de l’expression publi
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Jon Cooper @joncooper-us.bsky.social · 15/04/2025
🚀🚀
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Global Change Biology @globalchangebio.bsky.social · 04/04/2025
The Response of Carbon Uptake to Soil Moisture Stress: Adaptation to Climatic Aridity 📄 buff.ly/fA7kTkN
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Romain Bertrand @romainbertrand.bsky.social · 04/04/2025
www.inee.cnrs.fr/fr/cnrsinfo/...
inee.cnrs.fr
La diversité fantôme, ou « dark diversity », révèle l’impact mondial des activités humaines sur l’érosion de la biodiversité
Une étude publiée dans la revue Nature, menée par l’Université de Tartu (Es
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Stefan Pinkert @pro-pink.bsky.social · 25/03/2025
A major milestone of our >4-year effort to bring #butterfly diversity and its threat to global attention. We show most species and hotspots cluster in mountains, with #climatechange projected to erode up to 67% of the thermal niche supporting this diversity. www.nature.com/articles/s41...
nature.com
Global hotspots of butterfly diversity are threatened in a warming world - Nature Ecology & Evolution
Butterflies are a large, functionally important and charismatic invertebrate group. Here, the authors characterize global macroecological patterns of butterflies and project shifts in their bioclimati...
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Rémy Beugnon @remybeugnon.bsky.social · 23/03/2025
🌴🌳 Tree species richness increases climate buffering 🌡️🥵 I am so happy to share our latest piece, now published in Ecology Letters! onlinelibrary.wiley.com/doi/full/10....
onlinelibrary.wiley.com
Tree Diversity Increases Forest Temperature Buffering via Enhancing Canopy Density and Structural Diversity
Making use of 6 years of microclimate measurements in a large-scale tree diversity experiment covering a species richness gradient ranging from 1 to 24 tree species, we demonstrate that tree species ...
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Francisco Rodriguez-Sanchez @frodsan.bsky.social · 13/03/2025
New #statistics #ecopubs @esajournals.bsky.social: Predictive models are indeed useful for causal inference doi.org/10.1002/ecy.... Sounds like a response to 'Predictive models aren't for causal inference' doi.org/10.1111/ele....
The subject of investigating causation in ecology has been widely discussed in recent years, especially by advocates of a structural causal model (SCM) approach. Some of these advocates have criticized the use of predictive models and model selection for drawing inferences about causation. We argue that the comparison of model-based predictions with observations is a key step in hypothetico-deductive (H-D) science and remains a valid approach for assessing causation. We draw a distinction between two approaches to inference based on predictive modeling. The first approach is not guided by causal hypotheses and focuses on the relationship between a (typically) single response variable and a potentially large number of covariates. We agree that this approach does not yield useful inferences about causation and is primarily useful for hypothesis generation. The second approach follows a H-D framework and is guided by specific hypotheses about causal relationships. We believe that this has been, and continues to be, a useful approach to causal inference. Here, we first define different kinds of causation, arguing that a “probability-raisers-of-processes” definition is especially appropriate for many ecological systems. We outline different scientific “designs” for generating the observations used to investigate causation. We briefly outline some relevant components of the SCM and H-D approaches to investigating causation, emphasizing a H-D approach that focuses on modeling causal effects on vital rate (e.g., rates of survival, recruitment, local extinction, colonization) parameters underlying system dynamics. We consider criticisms of predictive modeling leveled by some SCM proponents and provide two example analyses of ecological systems that use predictive modeling and avoid these criticisms. We conclude that predictive models have been, and can continue to be, useful for providing inferences about causation.
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Nature Ecology & Evolution @natecoevo.nature.com · 17/03/2025
A global analysis of altered species compositions and climate change reveals the extent to which ecosystems, including in protected areas and biodiversity hotspots, are exposed to novel conditions due to anthropogenic forces rdcu.be/edTpA
rdcu.be
Widespread ecological novelty across the terrestrial biosphere
Nature Ecology & Evolution - Even outside urban and agricultural areas, ecosystems are vastly transformed as a result of human activities. Here the authors map patterns in climate change,...
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Romain Bertrand @romainbertrand.bsky.social · 17/03/2025
ecoevorxiv.org/repository/v...
ecoevorxiv.org
Wing length canalisation and behaviour across birds: a phylogenetic meta-analysis of variance
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Romain Bertrand @romainbertrand.bsky.social · 17/03/2025
www.cell.com/plant-commun...
cell.com
Integrating evolutionary genomics of forest trees to inform future tree breeding amid rapid climate change
Forest trees play a crucial role in combating and mitigating the adverse effects of global climate change. This review highlights the importance of integrating evolutionary genomic approaches with cut...
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Proceedings of the National Academy of Sciences @pnas.org · 13/03/2025
What determines the height of a forest? A study finds that soil properties, topography, and regional climate explain 75% of the variation in tropical forest canopy height. Dry season length and elevation were among the key variables. In PNAS: www.pnas.org/doi/10.1073/...
Distribution of canopy height derived from data from Global Ecosystem Dynamics Investigation (GEDI), a space-borne Light Detection and Ranging (LiDAR) instrument.
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Nature Ecology & Evolution @natecoevo.nature.com · 13/03/2025
Examining life-history differences among vertebrates and their mode of reproduction, Brooks et al. find that land vertebrate life histories are more constrained than aquatic ones, suggesting a wider diversity of reproductive strategies in aquatic habitats than in terrestrial ones
rdcu.be
Fundamental constraints on vertebrate life history are shaped by aquatic–terrestrial transitions and reproductive mode
Nature Ecology & Evolution - The authors examine life-history differences between terrestrial versus aquatic vertebrates and their mode of reproduction. They find that land vertebrate life...
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Nicolas Mouquet @nmouquet.bsky.social · 11/03/2025
Why do we fear some animals more than others? 🕷️🐍🐊 Check out our study in @peopleandnature.bsky.social with @karlzlr.bsky.social on danger and fear in shaping human biophobia. Fear isn’t just danger—social & cultural factors matter! 🔗 besjournals.onlinelibrary.wiley.com/doi/full/10.... 🌐🧪🌍🦤
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CNRS @cnrs.fr · 06/03/2025
#Communiqué 🗞️ Le CNRS exprime sa solidarité avec les scientifiques exerçant aux États-Unis, où la liberté académique est aujourd'hui mise à l’épreuve. 👉 www.cnrs.fr/fr/presse/le...
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Tom Ovenden @woodecology.bsky.social · 06/03/2025
Making this film was a lot of fun! Many thanks to all the wonderful Scientists that hosted me in Argentina and Chile during this Short Scientific Visit in 2023, and to IUFRO @iufro.bsky.social for funding it! 🍁 #SciComm #Forest #Ecology #Resilience #ClimateChange #Climate #PlantScience
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Jonathan Lenoir 🌳🌲🌴 @jonlen.bsky.social · 06/03/2025
Fascinating interview of Camille Parmesan & her pioneer work on #biodiversity #redistribution ➕️ important discussions on the current status of research funding for the biodiversity crisis & climate change ➡️ The 2 faces of the same coin 🌐🌏🌎🏔🦋🐝🌳🍁 @sciencecqfd.bsky.social shorturl.at/9wo2s
shorturl.at
Camille Parmesan : une écologue américaine en exil
En 1996, l’américaine Camille Parmesan a démontré pour la première fois l’effet du changement climatique sur une espèce animale, le damier d’Édith. Comment ce papillon californien réagit-il au réchauf...
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Nature Portfolio @natureportfolio.nature.com · 03/03/2025
Global insect invasions are increasing, driven by advances in globalization and technology. A Review in Nature Reviews Biodiversity discusses the effects of increasing trade and transport on insect invasions worldwide, and strategies for mitigation. go.nature.com/3X6QkHk
This is figure 3, which shows intercontinental species flow of non-native insects.
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IPBES @ipbes.net · 06/03/2025
A recent study found funding bias towards large vertebrates at the expense of less charismatic species. 🌍🧪 Read more @theguardian.com www.theguardian.com/environment/... Listen to our podcast episode on this topic: www.podbean.com/ew/pb-j54ym-...
theguardian.com
Most conservation funds go to large vertebrates at expense of ‘neglected’ species
Study shows funding bias towards animals like rhino while other endangered species including amphibians and algae disregarded
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