Pierre de Villemereuil

Pierre de Villemereuil

@pdevillemereuil.bsky.social

Lecturer for @ephe-psl.bsky.social, working at the Institute of Systematics, Evolution, Biodiversity (@isyeb.mnhn.fr, @mnhn.fr, Paris) on the genetics of adaptation in wild populations.

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Pierre de Villemereuil
@pdevillemereuil.bsky.social

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.orgQuantitative genetics of lifetime growth curves in a lizardAbstract. Body size is an iconic trait in quantitative genetics. For species with indeterminate growth however, growth curve, a function-valued trait, is t
Pierre de Villemereuil
@pdevillemereuil.bsky.social

Accordingly, there was a strong variability of the phenology across years. Within years, we found a moderate repeatability and relatively small heritability of breeding phenology. Selection was surprisingly inferred as directional and non-fluctuant across years!

Pierre de Villemereuil
@pdevillemereuil.bsky.social

We describe the influence of late spring/early summer temperature on the breeding phenology of this species, with an interesting interaction with the body size of females: larger females tended to give birth earlier than smaller ones, but less so in the warmer years.

Pierre de Villemereuil reposted

Joel Pick
@joelpick.bsky.social

🚨Exciting project alert!!🚨 Are you interested in data and code sharing in Ecology and Evolution? @eivimeycook.bsky.social and I are running a hackathon to quantify data and code availability and sharing quality across 90 society journals, and looking for people who want to be involved.

Pierre de Villemereuil reposted

Pleuni Pennings
@pleunipennings.bsky.social

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.comPostdoc position on drug resistance evolution in Montpellier, FranceI 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…

Pierre de Villemereuil reposted

ISYEB
@isyeb.mnhn.fr

In @journal-evo.bsky.social 80(9)OpenAccess "Quantitative genetics of lifetime growth curves in a lizard" #Adaptation#Evolutionary#Ecology#Body_size #Zootoca_vivipara#function-valued_trait #non-linear_animal_model Aragon,A., @pdevillemereuil.bsky.social @isyeb.mnhn.fr et al. doi.org/10.1093/evol...

Pierre de Villemereuil@pdevillemereuil.bsky.social

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.orgQuantitative genetics of lifetime growth curves in a lizardAbstract. Body size is an iconic trait in quantitative genetics. For species with indeterminate growth however, growth curve, a function-valued trait, is t
Pierre de Villemereuil
@pdevillemereuil.bsky.social

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.orgQuantitative genetics of lifetime growth curves in a lizardAbstract. 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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Pierre de Villemereuil
@pdevillemereuil.bsky.social

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.orgQuantitative genetics of lifetime growth curves in a lizardAbstract. Body size is an iconic trait in quantitative genetics. For species with indeterminate growth however, growth curve, a function-valued trait, is t
View full thread
Pierre de Villemereuil
@pdevillemereuil.bsky.social

We found low to moderate heritable variation in growth curves depending on the population and sex considered. Heritable variation in the dynamics of growth (shape of the growth curve) tend to be roughly twice as large as heritable variation in "intrinsic size" (i.e. average size across ages).

Pierre de Villemereuil
@pdevillemereuil.bsky.social

We found strong differences in the dynamics of growth, and its heritable variance, between the two populations (wild v. mesocosm). We discuss these differences as most likely related to strong contrast in temperature, although we cannot formally demonstrate this with only two populations of course!

Pierre de Villemereuil
@pdevillemereuil.bsky.social

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.orgQuantitative genetics of lifetime growth curves in a lizardAbstract. Body size is an iconic trait in quantitative genetics. For species with indeterminate growth however, growth curve, a function-valued trait, is t
Pierre de Villemereuil
@pdevillemereuil.bsky.social

We applied the framework on two populations of the common lizard: a wild population studied in the French Massif Central (see lizcev.cnrs.fr) and a another population from a mesocosm at SETE's Metatron experimental station in the Pyreneans.

lizcev.cnrs.frCommon lizard survey in the CevennesThere are two parts to the project: two populations at the top of Mt Lozère are individually monitored each year since the late 80s and 20 other populations, throughout the Massif Central, have been visited every two years since the 2000s, then less regularly since the 2020s.
Pierre de Villemereuil
@pdevillemereuil.bsky.social

👋 Cette année encore, nous vous proposons d'améliorer vos pratiques de traitement de données en laissant tomber votre tableur pour l'efficacité, la reproductibilité et l'automatisation offertes par R. #rstats @ephe-psl.bsky.social www.ephe.psl.eu/formations-q...

ephe.psl.euApprentissage du logiciel R | École Pratique des Hautes ÉtudesL’EPHE − PSL propose une formation pratique à l’utilisation du logiciel libre R pour la gestion et la manipulation des données avant l’analyse statistique (non traitée dans cette formation).Le contenu...

Pierre de Villemereuil reposted

Thibaut Brunet
@thibautbrunet.bsky.social

Many people on Bsky still seem to think that people resign from AI labs over risk as a marketing plot. Knowing a few people in AI frontier labs from my Berkeley time, I can vouch that these concerns are long-standing, sincere, and widespread. This is just exactly what it looks like.

Pierre de Villemereuil reposted

Thibaut Brunet
@thibautbrunet.bsky.social

Les nouvelles règles envisagées pour l'ANR sont plus qu'inquiétantes. Elles porteraient un immense coup d'arrêt à la recherche fondamentale en France, surchargeraient les jeunes chercheurs, et n'attendraient sans doute même pas leur objectif (apparent) de réduction du nombre de candidatures

Levayer Lab@levayerr.bsky.social

Si les nouvelles règles de l'éligibilité de l'ANR sont bien réelles, alors je ne comprends pas quelle est la logique sous jacente. Au vu de la pyramide des ages, forcer une collaboration avec chercheurs(ses) <10 ans post thèse va de facto exclure 80% des candidats.

Pierre de Villemereuil reposted

Barbara Class, Ph.D. (she/her)
@barbaraclass.bsky.social

Our article on Peer Community In and its journal Peer Community Journal is out!!🎉 I am so proud to have been part of it 😊Dive in to learn all about this alternative publishing model: doi.org/10.1629/uksg... @peercommunityin.bsky.social @peercomjournal.bsky.social

doi.orgPeer Community In and Peer Community Journal: a two-step diamond OA process giving research communities back control of publishing | Insights
UKSG@uksg.bsky.social

The latest from #UKSGInsights "Peer Community In and Peer Community Journal: a two-step diamond OA process giving research communities back control of publishing" by Barbara Class, Denis Bourquet and Thomas Guillemaud dub.sh/cfTzIZS @barbaraclass.bsky.social @tguillemaud.bsky.social

Pierre de Villemereuil reposted

ISYEB
@isyeb.mnhn.fr

New👉 @royalsocietypublishing.org B 293(2071) #OpenAccess "Short-and long-term antagonistic selection explains dispersal polymorphism.." #heritability #kin_selection #Zootoca_vivipara @laspic.bsky.social , @pdevillemereuil.bsky.social @isyeb.mnhn.fr et al. 🦎 royalsocietypublishing.org/rspb/article...

Léa Koch@laspic.bsky.social

Happy to see our new paper published today in @royalsocietypublishing.org B ! In it, we present an extensive work on the evolution of dispersal in a natural population of common lizards (Zootoca vivipara) 🦎 doi.org/10.1098/rspb...

doi.orgShort- and long-term antagonistic selection explains dispersal polymorphism in the common lizardAbstract. Dispersal is a key process that shapes the dynamics, genetic structure and adaptive potential of natural populations, yet persistence of its poly
Pierre de Villemereuil
@pdevillemereuil.bsky.social

Excited to see this published, the first paper from @laspic.bsky.social PhD at @ephe-psl.bsky.social @isyeb.mnhn.fr using our #commonlizard pedigreed population. Genetic polymorphism of dispersal maintained through antagonistic selection at different timescale (lifetime v. multigeneration)!

Léa Koch@laspic.bsky.social

Happy to see our new paper published today in @royalsocietypublishing.org B ! In it, we present an extensive work on the evolution of dispersal in a natural population of common lizards (Zootoca vivipara) 🦎 doi.org/10.1098/rspb...

doi.orgShort- and long-term antagonistic selection explains dispersal polymorphism in the common lizardAbstract. Dispersal is a key process that shapes the dynamics, genetic structure and adaptive potential of natural populations, yet persistence of its poly

Pierre de Villemereuil reposted

Barbara Class, Ph.D. (she/her)
@barbaraclass.bsky.social

I’ll be leaving PCI in May to begin a new postdoc, which means my current position will soon be open! You’ll find the job advert below (in French). Please feel free to share it within your networks, and don’t hesitate to get in touch if you’d like more information!

Peer Community In@peercommunityin.bsky.social

📢 Recrutement La Direction pour la Science Ouverte d’INRAE recrute un·e ingénieur·e d’études pour contribuer au pilotage de PCI 📄 Contrat : CDD 15 mois 🎯 Mission : Accompagner le développement et la coordination de PCI Détails de l'offre : jobs.inrae.fr/ot-28928

jobs.inrae.frResponsable du pilotage du projet Peer Community InINRAE est engagé dans la science ouverte et s’est doté d’une Direction pour la Science Ouverte (DipSO) pour mettre en place sa politique dans ce domaine. L’ouverture des publications et la défense de ...

Pierre de Villemereuil reposted

Amaury Lambert
@yruama.bsky.social

Le Concours Normalien Etudiant du département de Biologie (ENS-PSL) est ouvert !!!! Ce concours d'entrée à Normale Sup s'adresse aux étudiant·es de L2 ou L3 issu·es des Universités.... N'hésitez à faire passer l'information. (www.enseignement.biologie.ens.fr/spip.php?art...)

enseignement.biologie.ens.frConcours normalien étudiant Sciences - ENS - EnseignementDécouvrez le Concours normalien étudiant ! ! Les candidatures 2026-2027 sont ouvertes depuis le 9 mars 2026, jusqu'au 24 avril 2026 (…)

Pierre de Villemereuil reposted

Thibaut Brunet
@thibautbrunet.bsky.social

Final version @nature.com of our paper describing unconventional multicellular development in a choanoflagellate inhabiting an extreme environment. A ton of new data since the first @biorxivpreprint.bsky.social preprint (which we've kept updating). A brief 🧵 (carried over from the old place)

Nature Portfolio@natureportfolio.nature.com

A study in Nature shows that the single-celled form of a tiny, aquatic organism can turn into a multicellular version by three different routes. The discovery adds insight to the possible origins of multicellular life, suggesting a previously unrecognized degree of flexibility. 🧪

go.nature.comClonal-aggregative multicellularity tuned by salinity in a choanoflagellate - NatureThe choanoflagellate Choanoeca flexa forms motile and contractile cell monolayers purely clonally, purely aggregatively or through a combination of both processes depending on environmental conditions.

Pierre de Villemereuil reposted

Benjamin Rosenbaum
@benrosenbaum.bsky.social

I have written my first R-package for feeding experiments! BayesFR allows fitting functional responses by providing dynamical prediction models for use in #brms. Includes models for classical type 2 and type 3 responses, and also prey mortality or predator interference (more to come) #Rstats (1/3)

github.comGitHub - benjamin-rosenbaum/BayesFR: Fitting functional responses in 1 and 2-prey systemsFitting functional responses in 1 and 2-prey systems - benjamin-rosenbaum/BayesFR

Pierre de Villemereuil reposted

Olivier Gimenez 🦦
@oaggimenez.bsky.social

📘 Nouveau livre ! Introduction à la statistique bayésienne avec le logiciel R Découvrez pas à pas la statistique bayésienne et sa mise en œuvre dans R : théorème de Bayes, MCMC, priors, régression, GLM/GLMM et comparaison/validation de modèles. Aux éditions Quae 🙏 📷 Crédit photo : Yann Raulet

Pierre de Villemereuil reposted

Aline Muyle
@aline-muyle.bsky.social

I am hiring a Postdoc (18 months contract in Montpellier, France) to study how polyploidy affects sex chromosomes in the plant Silene latifolia, using bioinformatic analyses of RNA-seq and DNA-seq data. Deadline for applications March 24th. euraxess.ec.europa.eu/jobs/412961

euraxess.ec.europa.euPost doc position in Evolutionary biology and bioinformatics- work environment: This postdoctoral position will be supervised by Aline Muyle and hosted at the Institute of Evolutionary Sciences of Montpellier (ISEM), within the CHANGE department and the Plant ...

Pierre de Villemereuil reposted

Tim Janicke
@timjanicke.bsky.social

Led by my talented PhD student @justine-armg.bsky.social we’re running a #meta-analysis of #cross-sex-genetic-correlations in fitness components. If you have unpublished data or know of studies that might not appear in a systematic search, please reach out, we’d love to include them! Please share!

Pierre de Villemereuil reposted

Jean-Lou Justine
@jean-lou-justine.bsky.social

Encore une magnifique histoire d'article totalement bidon racontant n'importe quoi, généré par AI, et immédiatement accepté par une revue prédatrice.🧪 Cette fois-ci, c'est sur les envies des femmes enceintes... des envies de nombres premiers! retractionwatch.com/2026/01/30/g...

retractionwatch.comGuest post: Forget pickles and ice cream. I published a fake paper on pregnancy cravings for prime numbersImage generated by Google Gemini I had grown weary of the constant stream and abuse of spam invitations to submit manuscripts to journals and to attend fake conferences on the other side of the wor…

Pierre de Villemereuil reposted

Bertrand Servin
@bertrandservin.bsky.social

A new permanent position is opened in our group at the Animal Genetics Division of @inrae-france.bsky.social to work on the development of new prediction models for genomic selection in livestock. Job description is here : urls.fr/FZNWJQ Don't hesitate to contact me for more information !

jobs.inrae.frJunior research scientist in modelling for genomic prediction using complex dataCR26-GA-1 - You will join the Genetics, Physiology and Livestock Systems (GenPhyse, about 150 permanent staff) joint research unit, where researchers aim to contribute to the agroecological transition of livestock systems through better understanding of livestock biology, genetic bases of traits, and selection schemes to achieve resilient populations. The unit brings together skills in biology, physiology, genomics, genetics, statistics, and bioinformatics. Within the unit, you will join the Chamade team (Characterization and management of genetic diversity) of the Diversity and Selection group comprising methodologists in quantitative genetics (genomic prediction, selection and evolution) and population genomics, as well as statisticians. Within your research team, you will be in charge of developing a new research programme in applied statistics to integrate high-throughput, heterogenous, and multiscale data into genetic and genomic evaluation methods. You will conduct your research to improve genomic prediction models by integrating new information relative to genome function (e.g. functional annotation), molecular phenotypes (e.g. transcriptomics, methylation), and high-throughput or intermediate phenotypes (e.g. longitudinal data, high throughput sensors).To integrate different types of data into current genomic prediction models, you will draw on a variety of statistical modelling, for example modelling SNP effects according to their functional annotation category, or including random effects capturing the inter-individual covariance for intermediate phenotypes. The modelling could draw, for example, on hierarchical models, meta-analysis methods, mediation analysis or machine learning, possibly simulation-based. In addition, as new high-throughput data may not necessarily be available on the same individuals as traditional data, their integration will require the implementation of suitable statistical techniques. The predictive performance of the developed models will be evaluated using numerical simulations, for instance based on real breeding programmes. The models will also be tested on real data from experimental and commercial programmes of livestock species. These data will be available through existing projects and partnerships within the unit and the division to initiate your research project. Computational efficiency must be taken into consideration in your developments to ultimately ensure their practical use in genetic and genomic evaluation. To develop your research, you will benefit from the proximity of experts in statistics, computer science, quantitative, molecular and population genetics within GenPhySE. In accordance with INRAE's policy for open science, in addition to scientific publications, you will promote your work by distributing free software implementing the new methods developed to ensure their wide dissemination to the international community.

Pierre de Villemereuil reposted

Edward Grey Institute
@egioxford.bsky.social

🚨🚨🚨 Field Assistant positions - four of them!! - working with the long-term Wytham project this coming spring. Details below. Previous year's field team - come and join us! Details below ⬇️

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Pierre de Villemereuil
@pdevillemereuil.bsky.social

Il reste encore des places pour vous inscrireà notre formation "Apprentissage au Logiciel R", mais il faut nous contacter rapidement ! ⌛

Pierre de Villemereuil@pdevillemereuil.bsky.social

Marre de passer vos journées à Ctrl+C/Ctrl+V vos données dans un tableur et devoir tout refaire à cause d'un soucis de formatage imprévu ? 😡 Suivez la formation @ephe-psl.bsky.social (27 janvier au 5 février) pour apprendre à utiliser R pour traiter vos données :👇 www.ephe.psl.eu/formations-q...

ephe.psl.euApprentissage du logiciel R | École Pratique des Hautes ÉtudesL’EPHE − PSL propose une formation pratique à l’utilisation du logiciel libre R pour la gestion et la manipulation des données avant l’analyse statistique (non traitée dans cette formation).Le contenu...

Pierre de Villemereuil reposted

Erik Svensson
@evolodonata.ecoevo.social.ap.brid.gy

Come and join me and my colleagues at the Department of Biology, #LundUniversity in #sweden! We have am open position as Senior Lecturer/Associate Professor in Biodiversity. Apply here no later than February 11 2026: https://lu.varbi.com/en/what:job/jobID:848749/type:job/where:4/apply:1

lu.varbi.comSenior Lecturer/Associate Professor in BiodiversityThe Department of Biology was established in 2010 through the merger of the Departments of Ecology, Cell and Organism Biology, Biological Undergraduate Education, and the Biological Museums. The depar

Pierre de Villemereuil reposted

Chris Sutherland
@chrissuthy.bsky.social

We are recruiting several PhD students. If you are interested in conservation conflicts, population ecology, quantitative ecology, or biodiversity, check these projects out (links in the thread, feel free to reach out):

Pierre de Villemereuil
@pdevillemereuil.bsky.social

Il reste encore des places pour notre formation @ephe-psl.bsky.social à R (27 janvier au 5 février à Paris), avec une focalisation complète sur le traitement de données (pas de statistiques). Il y a un module pour chaque niveau et chaque besoin ! 👇 #rstats #formationcontinue

Pierre de Villemereuil@pdevillemereuil.bsky.social

Marre de passer vos journées à Ctrl+C/Ctrl+V vos données dans un tableur et devoir tout refaire à cause d'un soucis de formatage imprévu ? 😡 Suivez la formation @ephe-psl.bsky.social (27 janvier au 5 février) pour apprendre à utiliser R pour traiter vos données :👇 www.ephe.psl.eu/formations-q...

ephe.psl.euApprentissage du logiciel R | École Pratique des Hautes ÉtudesL’EPHE − PSL propose une formation pratique à l’utilisation du logiciel libre R pour la gestion et la manipulation des données avant l’analyse statistique (non traitée dans cette formation).Le contenu...