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Luis-Miguel Chevin

@lmchev.bsky.social
646 followers 294 following 71 posts

A bit of modeling, a bit of experiments, lots of evolution. Researcher @cnrs @cefemontpellier

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Reposted by Luis-Miguel Chevin
Pleuni Pennings @pleunipennings.bsky.social · 29/09/2026
I am hiring a postdoc! Are you interested to work on population genetics/ drug resistance/ data? Want to work in Montpellier, France? Fastq files don't scare you? PhD required, start date hopefully Nov 1! (end date Sep 30 2028) Please share! abetterscientist.wordpress.com/2026/09/29/p...
abetterscientist.wordpress.com
Postdoc position on drug resistance evolution in Montpellier, France
I have some exciting news (again!). I got money from the region (Occitanie) to hire a postdoc (and later an engineer / technician) to work on drug resistance evolution in malaria (P. faciparum) and…
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Pierre de Villemereuil @pdevillemereuil.bsky.social · 28/09/2026
With fieldwork, I didn't get to advertise our (not so now) new paper on the quantitative genetics of growth in the 🦎 in @journal-evo.bsky.social: dx.doi.org/10.1093/evol... It's an exciting paper paper in which we disentangle what it means to treat the whole growth curve as a function-valued trait!
dx.doi.org
Quantitative genetics of lifetime growth curves in a lizard
Abstract. Body size is an iconic trait in quantitative genetics. For species with indeterminate growth however, growth curve, a function-valued trait, is t
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Helen Hipperson @hhippers.bsky.social · 10/09/2026
🧬 We’re Hiring: Research Associate (Molecular Ecology / Bioinformatics) 🧬 We are looking for an RA to join @nerc-eof.bsky.social at the University of Sheffield. 👉 Apply here: tinyurl.com/yxa9tnww
tinyurl.com
Research Associate (Molecular Ecology/Bioinformatics)
Research Associate (Molecular Ecology/Bioinformatics)
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Luis-Miguel Chevin @lmchev.bsky.social · 09/09/2026
In our view this is also a follow-up to another study we published last year about competition, and the evolution of ecological character displacement in a fluctuating environment academic.oup.com/evolut/artic...
academic.oup.com
Evolution of plasticity and character displacement in a fluctuating environment
Abstract. Species that compete for the same resource may undergo ecological character displacement (CD), where the phenotype of each species evolves to dev
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Luis-Miguel Chevin @lmchev.bsky.social · 09/09/2026
But no kudos to the funding agencies that keep rejecting our grants on this topic for the last 6 years! 🙃Luckily theory does not require much funding, but experimental evolution tests will have to wait.
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Luis-Miguel Chevin @lmchev.bsky.social · 09/09/2026
Kudos to Lou (not on Bluesky) for this work that started during a short stay and became a side project to her current PhD, and to Aryan for initiating this project.
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Luis-Miguel Chevin @lmchev.bsky.social · 09/09/2026
Another puzzling discovery that we made along the way was that most previous coevolutionary models had overlooked an important aspect of selection mediated by trait matching, by not building up evolutionary equations from interactions at the individual level.
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Luis-Miguel Chevin @lmchev.bsky.social · 09/09/2026
These findings extend those of Osmond et al (2017) on the selective push caused by selective predators, by showing that the selective scenario for predators can qualitatively change the outcome for the evolution of prey. www.journals.uchicago.edu/doi/abs/10.1...
journals.uchicago.edu
University of Chicago Press Journals: Cookie absent
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Luis-Miguel Chevin @lmchev.bsky.social · 09/09/2026
We found that a predator with a constant phenotype or static optimum pushes the prey beyond its optimum in most environments, increasing its maladaptation. In contrast, a predator that coadapts to the same optimum as its prey pushes it closer to the optimum on average, decreasing maladaptation.
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Luis-Miguel Chevin @lmchev.bsky.social · 09/09/2026
The prey is sensitive to the abiotic environment and needs to track a moving optimum via adaptive evolution. The predator may also need to track this changing environment, or it may instead have a constant optimum, but experience fluctuating selection through the need to match its prey.
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Luis-Miguel Chevin @lmchev.bsky.social · 09/09/2026
We relied on the classic assumption that the interaction is mediated be phenotypic matching. Think for instance of a bird having to match the timing of emergence of caterpillars that it uses to feed its chicks, or a key-lock system of chemical recognition.
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Luis-Miguel Chevin @lmchev.bsky.social · 09/09/2026
We asked a simple question: How is adaptation of a prey species to a fluctuating environment altered by a predator species that does, or does not, adapt to the same changing environment?
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Luis-Miguel Chevin @lmchev.bsky.social · 09/09/2026
Now out in PNAS: our latest exploration of the interplay between interspecific interactions and adaptation to a changing abiotic environment! This time it’s about predator-prey interactions. www.pnas.org/doi/10.1073/...
pnas.org
Coadapting but not static predators facilitate prey adaptation to a fluctuating environment | PNAS
Understanding how between-species interactions influence adaptation and population persistence in the face of environmental change is one of the gr...
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Charles Mullon @charlesmullon.bsky.social · 19/08/2026
With @ewanflintham.bsky.social @thomaslesaffre.bsky.social and @sarperotto.bsky.social we've been thinking about what theory tells us about sexual antagonism (SA = when selection favours different trait values in females and males). Our review is here: tinyurl.com/ct5mk8mv
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Society for the Study of Evolution @sse-evolution.bsky.social · 07/07/2026
💬 In the latest Evolution Exchange, SSE President Dr. Gina Baucom talks with @journal-evo.bsky.social Editor in Chief Dr. Jason Wolf about his role, the success of the journal, and the benefits of publishing in society journals. www.evolutionsociety.org/the-evolutio...
Headshot of Jason Wolf. Text: A Conversation with the Evolution Editor in Chief with Dr. Jason Wolf. The Evolution Exchange, a monthly conversation series from the Society for the Study of Evolution.
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Haoran Cai @haorancai.bsky.social · 25/06/2026
New paper out @pnas.org: We explore why fly wings evolve along "lines of least resistance" and reconcile the "rate paradox" between population variation and divergence. Check out how a low dimensional model of selection on size explains it all: www.pnas.org/doi/full/10....
pnas.org
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
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Christine N Meynard @cnmeynard.bsky.social · 27/05/2026
Ça se passe à Montpellier lundi prochain! Venez sur place ou en ligne, ça promet d'être très intéressant 😁
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Claus Wilke @clauswilke.com · 28/04/2026
Congrats to @jrossibarra.bsky.social for getting elected to the NAS!
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Society for the Study of Evolution @sse-evolution.bsky.social · 27/04/2026
Congratulations to the recipient of the 2026 SSE Lifetime Achievement Award, Dr. Samuel M. Scheiner! Read more about his work as a researcher and NSF Program Officer, as well as his service to the biology community: www.evolutionsociety.org/society-awar...
Headshot of Dr. Sam Scheiner. Text: Samuel M. Scheiner, 2026 Society for the Study of Evolution Lifetime Achievement Award.
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Laura Ross @laurarossevo.bsky.social · 27/04/2026
Did you know that many organisms delete parts of their genome during development? To know more please join us at the Roscoff meeting on "Mechanistic and Evolutionary Basis of Programmed DNA Elimination" Sep21- 25, 2026. Please share!
cjm.sb-roscoff.fr/en/conferenc...
cjm.sb-roscoff.fr
The mechanistic and evolutionary basis of programmed DNA elimination | CNRS - Conférences Jacques Monod (CJM)
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Luis-Miguel Chevin @lmchev.bsky.social · 20/03/2026
Two more points bout this: 1 - The paper is Open Access 2 - @paulcuchot.bsky.social is looking for a postdoc, preferably on wild bird populations, so don't miss him! 😜
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Luis-Miguel Chevin @lmchev.bsky.social · 17/03/2026
Now out in Oikos: check out our paper led by @paulcuchot.bsky.social, on how to use citizen data such as mist net captures to infer breeding phenology!
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Karim Majzoub @karimaj.bsky.social · 06/03/2026
We found a viral Trojan Horse: a virus can hide inside another virus.This one surprised us: deltaviruses don’t just borrow a helper virus. They can travel inside it. A literal Trojan Horse “virus-in-a-virus” route into cells. 🤯 Kudos to 1st author @viroscope.bsky.social and co-authors !
sciencedirect.com
Deltaviruses spread through a viral Trojan Horse
Hepatitis D-like satellite viruses, known as deltaviruses, have been recently discovered in a wide range of animals. These viruses are thought to expr…
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Cecile Molinier @cecilemolinier.bsky.social · 04/03/2026
The final part of the story: "The arduous path to obligate asexuality in Daphnia" is out in #ProcB 🥳 royalsocietypublishing.org/rspb/article.... 1. Instead of comparing long-established asexuals to sexuals, we generated new asexual lineages to observe the transition in action.
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Gina Baucom @gbaucom.bsky.social · 02/03/2026
Researchers in the US might be having feelings about writing grants atm-I know I am! We still need to write them. In this Evolution Exchange, I again chat with Sam Scheiner, who summarizes how to write a competitive proposal. His advice is gold, and helpful regardless of funder. Pls RT!
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Arvid Ågren @arvidagren.bsky.social · 02/02/2026
"There is still life in the old dog." Brian Charlesworth on Fisher's Fundamental Theorem in @journal-evo.bsky.social doi.org/10.1093/evol...
doi.org
Is the Fundamental Theorem of Natural Selection of any use?
Abstract. There have been many recent discussions of the Fundamental Theorem of Natural Selection, with an emphasis on its mathematical accuracy. It is arg
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Timothy Snyder @timothysnyder.bsky.social · 29/01/2026
The book I am most looking forward to this year. www.penguinrandomhouse.com/books/746822...
penguinrandomhouse.com
The Co-Creation by Olivia Judson: 9780593831045 | PenguinRandomHouse.com: Books
A daring and visionary new narrative of the emergence of life, one that refocuses our attention on the beautiful and mysterious tango between life and Earth itself, from Olivia Judson, the bestselling...
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Damien M. de Vienne @damdevienne.bsky.social · 28/01/2026
Lifemap is now installable as an app on your desktop (PWA). 🖥️ Just one click from your browser! lifemap.cnrs.fr #Lifemap #CNRS #LBBE
Captured d'écran de la barre de navigation chrome montrant l'url de Lifemap et le bouton télécharger permettant d'installer l'app sur son bureau
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Nature @nature.com · 28/01/2026
Wikipedia is an antidote to an increasingly poisoned information ecosystem go.nature.com/4pXIv2d
go.nature.com
Wikipedia is needed now more than ever, 25 years on
The online encyclopedia is an antidote to an increasingly poisoned information ecosystem. Researchers should help to nourish it.
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Luis-Miguel Chevin @lmchev.bsky.social · 23/01/2026
La loutre dans le Lez!
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EvolDir @evoldir.bsky.social · 14/01/2026
Registration for the DrosEU/D. suzukii meetings is extended to Jan 30, 2026. The events will be held in Montpellier, France, on Apr 13-17, 2026. Free registration at: droseusuz.sciencesconf.org #conference
droseusuz.sciencesconf.org
16th DrosEU meeting and satellite Drosophila suzukii International conference - Sciencesconf.org
16th DrosEU meeting and satellite Drosophila suzukii International conference - Sciencesconf.org
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The Linnean Society of London @linneansociety.bsky.social · 14/01/2026
Join Peter Grant FLS FRS & Rosemary Grant FRS on Wed 4 March as they discuss their landmark research on Darwin’s finches and how new species form. Peter and Rosemary are renowned evolutionary biologists, having studied these finches on the Galápagos islands since 1973. buff.ly/ZbYnmf2
Peter and Rosemary Grant conducting research
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Luisa F. Pallares @luisapallares.bsky.social · 09/01/2026
Thanks to @eseb.bsky.social for funding our proposal for a Special Topic Network on Polygenic Adaptation. Watch out for workshops/seminars and more activities. The STN runs for several years, so we hope this innitiative can sustain the network of oldies and new members of the polygenic community!
polygenic-adaptation-network.org
(no title)
Visit the post for more.
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Deepa Agashe @deepaagashe.bsky.social · 19/12/2025
How do bacteria deal with double costs? And how costly are unusual levels of mistranslation anyway? In short - antibiotics are more of an issue than less/more mistranslation, but the latter changes how populations deal with antibiotics. For the long story, check out our new paper!
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Luis-Miguel Chevin @lmchev.bsky.social · 10/12/2025
Kudos to @pdevillemereuil.bsky.social for writing a blog post about our paper published earlier this years in the one and only @peercomjournal.bsky.social ! You want to know how genetically variable plasticity is in your fav system, and what components of reaction norm shape vary the most? Try this!
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Luis-Miguel Chevin @lmchev.bsky.social · 04/12/2025
Well done @timjanicke.bsky.social and colleagues, looking good !
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Andrew Curry @andrewcurry.com · 04/12/2025
The Black Death was history's worst documented demographic disaster. New research shows it was also a bizarre anomaly, the unlikely result of volcanic eruptions, multiple consecutive poor harvests in Italy, a war between Genoa, Venice and the Mongols, AND a Black Sea plague outbreak. @science.org
science.org
Medieval volcano may have indirectly sparked Europe’s Black Death
Crop failures caused by eruptions possibly forced grain imports from plague-ridden regions
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mecadev.bsky.social @mecadev.bsky.social · 19/11/2025
A new study by Evin et al. @isemevol.bsky.social with Colline Brassard #MECADEV in Science reveals that dogs already exhibited a wide variety of shapes and sizes more than 11,000 years ago, long before modern breeding practices. www.science.org/doi/10.1126/...
science.org
The emergence and diversification of dog morphology
Dogs exhibit an exceptional range of morphological diversity as a result of their long-term association with humans. Attempts to identify when dog morphological variation began to expand have been con...
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Luis-Miguel Chevin @lmchev.bsky.social · 22/11/2025
Check out the paper explaining what this is about, and also the database itself!
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Luis-Miguel Chevin @lmchev.bsky.social · 21/11/2025
Thanks to the organizers for putting together this very interesting symposium on organismal resilience! An associated special issue of the @biojlinnsoc.bsky.social is now open to submission: academic.oup.com/biolinnean/p...
academic.oup.com
Organismal Resilience in a Rapidly Changing World
Abstract Over the course of their evolutionary histories, organisms have adapted to cope with an unending array of challenges, and they continue to cope with n
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Luis-Miguel Chevin @lmchev.bsky.social · 21/11/2025
I was quite impressed and humbled yesterday to give a talk at the @linneansociety.bsky.social, in front of this very portrait and plate!
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Nature Ecology & Evolution @natecoevo.nature.com · 17/11/2025
Safeguarding long-term research in ecology and evolution www.nature.com/articles/s41... Q&A with Stéphane Blanc, research director at CNRS, about the Long-term Studies in Ecology and Evolution programme and its priorities for supporting long-term monitoring and research Free to read: rdcu.be/eQltU
nature.com
Safeguarding long-term research in ecology and evolution - Nature Ecology & Evolution
Long-term research projects are essential for predicting the ecological and evolutionary responses of species to global change, yet their continuity is often threatened by uncertainties over funding. ...
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Genetics Society UK @gensocuk.bsky.social · 14/11/2025
Congratulations to Joe Felsenstein on being awarded the 2026 Mendel Medal!
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Society for the Study of Evolution @sse-evolution.bsky.social · 03/11/2025
The Dobzhansky Prize recognizes the accomplishments and future promise of an outstanding early-career evolutionary biologist. The awardee will present the Dobzhansky Prize plenary at #Evol2026. Apply by December 1! shorturl.at/p70wY
Text: Society for the Study of Evolution Dobzhansky Prize to recognize the accomplishments and future promise of an outstanding early-career evolutionary biologist. Nominations due December 1, 2025.
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Seema Sheth @seemasheth.bsky.social · 25/10/2025
A universal thermal performance curve arises in biology and ecology doi.org/10.1073/pnas...
doi.org
A universal thermal performance curve arises in biology and ecology | PNAS
Temperature has strong impacts on all biological and ecological processes, and thermal performance curves (TPCs) have been employed recurrently to ...
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Mario Vallejo-Marin @nicrodemo.bsky.social · 24/10/2025
Do you want to do a Masters in Evolutionary Biology? The call for applying to the MEME program is now open! MEME is a fantastic 2-year MSc between four European Universities on all areas of Evolutionary Biology. Apply and study in Sweden/France/the Netherlands/Germany/USA/Switzerland! www.evobio.eu
Picture of MEME students on the beach
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Tim Janicke @timjanicke.bsky.social · 22/10/2025
Does #SexualSelection fuel #Speciation? Our new #meta-analysis of comparative studies finds support for a positive relationship, but the rather moderate global effect suggests it’s not necessarily a dominant force. doi.org/10.1093/evle...
doi.org
Sexual selection and speciation: a meta-analysis of comparative studies
Abstract. Understanding the drivers of biodiversity is a central goal in evolutionary biology. In particular, sexual selection has long been proposed as a
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Ben Sheldon @sheldonbirds.bsky.social · 20/10/2025
Interested in a PhD in ornithology? Funding available for projects at the interface of ecology, behaviour & evolution from Oct '26 working on long-term population studies of tits at Wytham, based in @biology.ox.ac.uk in the new Life & Mind Building in Oxford www.findaphd.com/phds/project...
Examples of some recent papers from graduate students in my group - a full list of recent papers and preprints can be found here (https://scholar.google.co.uk/citations?hl=en&user=pTdxVdIAAAAJ) and profile of the group here: https://egioxford.web.ox.ac.uk/membersThe annual Wytham Field Team Photo!Celebrating a successful field season with great food & good company - May 2025Front view of the Life & Mind Building, which opened in Oct 2025: The new home of Biology at Oxford
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Arnaud Le Rouzic @arnaudlerouzic.bsky.social · 13/10/2025
Very proud to see this work highlighted by the journal! Publishing in Evolution has always meant something special to me. Congrats to the first author Sylvain Pouzet who found the energy to keep on working on his master project during his PhD.
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PLOS Biology @plosbiology.org · 14/10/2025
Genetic architectures of #ComplexTraits vary widely. @yuvalsim.bsky.social @jkpritch.bsky.social @gs2747.bsky.social &co show these diffs arise from mutational target size & heritability per site; when controlled for, all tested traits have similar architectures @plosbiology.org 🧪 plos.io/47mZXqT
 Heritability and target size underlie differences between trait architectures:

examples for three traits. Top: Height (blue) and platelet crit (red) have the same heritability per site h2/L, but height has a much higher mutational target size L. This results in many more hits for height (1533) than for platelet crit (648) (2 left panels). However, the marginal distributions of effect sizes, MAFs, and z-scores of hits are nearly identical for the two traits (3 right panels). Middle: Height (blue) and FEV1 (gold) differ in h2/L, but have similar L. Consequently, the joint distribution of z-scores and MAFs of their hits are markedly different (2 left panels), as are the marginal distributions of hit effect sizes, MAFs and z-scores (right). Bottom: After scaling by their respective , and imposing the more stringent scaled significance threshold (corresponding to FEV1) for both traits, the joint distribution of z-scores and MAFs of their hits (2 left panels) and the corresponding marginal distributions (3 right panels) are highly similar.
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