Quentin PETITJEAN's Avatar

Quentin PETITJEAN

@qpetitjean.bsky.social

Researcher working on multiple stressors πŸ¦ πŸŒ‘οΈπŸ›’οΈ & Intraspecific variability across biological levels mostly in 🐟🐝🐌 #ecotox βšͺ Dev. of the MoveR R package ➑️ https://qpetitjean.github.io/MoveR/ πŸŒπŸ”— https://qpetitjean.github.io/qpetitjean_distill/

187 Followers  |  268 Following  |  4 Posts  |  Joined: 22.11.2024  |  1.5073

Latest posts by qpetitjean.bsky.social on Bluesky

TADA! Simple guidelines to improve code sharing

πŸŽ‰New preprint!

"TADA! Simple guidelines to improve code sharing"

tinyurl.com/8rmnwjrk

We present simple guidelines to help researchers of all coding levels improve the transparency and reproducibility of their analytical code, TADA!

Transferable, Accessible, Documented, Annotated.

02.08.2025 17:05 β€” πŸ‘ 100    πŸ” 53    πŸ’¬ 2    πŸ“Œ 3
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We are doing a Hackathon! πŸ’» Together with senior editor @nhcooper123.bsky.social , we'll be discussing and testing a protocol to check whether published data/code is actually reproducible... (1/2)

31.07.2025 15:21 β€” πŸ‘ 39    πŸ” 23    πŸ’¬ 1    πŸ“Œ 2
Visual representation of tested hypotheses showing how urbanization can affect phenotypic variation at different population levels.

Visual representation of tested hypotheses showing how urbanization can affect phenotypic variation at different population levels.

Last paper from my PhD at #EcolLett: dx.doi.org/10.1111/ele....

Using long-term data from European tit populations, we test three hypotheses to determine how urbanization affects phenotypic variation at different population levels.
#UrbanTitCollab #DiverCity #SPIBirds

25.07.2025 13:32 β€” πŸ‘ 27    πŸ” 8    πŸ’¬ 1    πŸ“Œ 1
Integration of pedigrees and methods for demographic inference in livestock population genomics Demographic inference is a central tool for reconstructing the genetic history of a population. Recently, several new approaches have brought this tool into a new era, that of the exhaustive use of whole-genome sequence. These approaches can be divided into two categories: demographic inference based on ancestral recombination graphs (ARGs1) and deep learning based inference2,3. However, without any other source of information, it is difficult to assess the actual degree of accuracy of these methods. In the case of livestock species, we usually have access to an additional information, rather unique and valuable, the pedigree over several generations. This set of relationships makes it possible to compare inferred demographic histories with the exact, albeit incomplete, history of the population.In this thesis project, we aim to use the pedigree information on the one hand, to assess the results obtained with the new approaches of demographic inference, and, on the other hand, to refine methods for ARG estimation. Therefore, we propose a research program divided into three main tasks: (i) to appropriate new approaches (ARG, deep learning) in demographic inference on goat and sheep datasets, (ii) to compare these approaches together, in particular to evaluate their inference of the effective size of a population in the light of genealogical information, and (iii) to integrate this information into the inference of ARGs.Kelleher, J. et al. Inferring whole-genome histories in large population datasets. Nature Genetics 51, 1330–1338 (2019).Schrider, D. R. & Kern, A. D. Supervised Machine Learning for Population Genetics: A New Paradigm. Trends in Genetics 34, 301–312 (2018).Korfmann, K., Gaggiotti, O. E. & Fumagalli, M. Deep learning in population genetics. Genome Biology and Evolution 15, evad008 (2023).You will be welcomed in the CHAMADE team (β€œCHAracterization and MAnagement of Diversity”) of the GenPhySE research unit (https://genphyse.inrae.fr/), located in the Occitanie-Toulouse research centre (31320, Castanet-Tolosan). The CHAMADE team is part of the β€œDiversity and Selection” scientific division of the research unit. The team is interested in methodological issues in the field of population genomics, genetic evaluation of livestock species and quantitative and evolutionary genetics. On deep learning approaches for demographic inference, collaboration is also planned with the BioInfo team from the Laboratoire Interdisciplinaire des Sciences du NumΓ©rique (LISN, Paris-Saclay University).

PhD offer in our lab in Toulouse, France
"Integration of pedigrees and methods for demographic inference in livestock population genomics"
Supervision: Pierre Faux & Bertrand Servin
More information: jobs.inrae.fr/en/ot-25908

16.06.2025 13:45 β€” πŸ‘ 2    πŸ” 6    πŸ’¬ 0    πŸ“Œ 0

Dreaming of a postdoc adventure with earwigs? ✨ Dive into insect behavior, parental care, social immunity, population genomics, microbiota, ecotoxicology, and many other exciting topics! Got a crazy or just a vague idea for a postdoc project: Let's chat and make it happen! 🌟 #Postdoc #Europe #earwig

08.05.2025 19:53 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Wild to see our new pharmaceutical pollution and salmon migration paper in @science.org covered on @colbertlateshow.bsky.social!

Starts at 2:45 πŸ‘‰ www.youtube.com/watch?v=Cm4u...

Read the paper πŸ‘‰ www.science.org/doi/10.1126/...

@jack-brand.bsky.social

18.04.2025 15:55 β€” πŸ‘ 16    πŸ” 7    πŸ’¬ 1    πŸ“Œ 0
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🚨 ESEB 2025, here we come! 🚨
We're thrilled to announce our symposium:
"Enhancing Diversity & Transparency in Ecology & Evolution: Reliable Practices for Research & Organizations" 🌍✨
Featuring invited speakers:
πŸ”Ή Dr. Malgorzata (Losia) Lagisz
πŸ”Ή Dr. Joel Pick
πŸ“… Aug 17-22, 2025 | πŸ“ Barcelona, Spain

18.04.2025 12:49 β€” πŸ‘ 31    πŸ” 15    πŸ’¬ 1    πŸ“Œ 2
Evaluating the effects of environmental disturbances and pesticide mixtures on N-cycle related soil microbial endpoints

First paper published in PCI in Ecotox and Env Chem, issued from the PhD of #Camilla_Drocco done in collaboration with #Anja_Coors from #ECT_Oekotoxikologie within the context of aristo.bio.uth.gr/index.php/ct... !

peercommunityjournal.org/articles/10....

16.04.2025 12:28 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Exactement, j'ai rejoint l'unitΓ© au 1er Janvier :)

15.01.2025 19:35 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Merci @jmeunierearwig.bsky.social ! πŸ˜‰

04.01.2025 16:58 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

I'm thrilled to share that I’ve just started a permanent position as a research scientist at the Bees & Environment unit @inrae-france.bsky.social !

I’ll be focusing on the transfers and effects of contaminants on wild bees 🐝.
#ecotoxicology #ecotox
#bees

Stay tuned for updates!

02.01.2025 14:36 β€” πŸ‘ 6    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0
Logo for the 17th Ecology & Behaviour conference that will be hosted in Montpellier, France from August 11-15, 2025. The logo includes a black and white flamingo made up of other animals.

Logo for the 17th Ecology & Behaviour conference that will be hosted in Montpellier, France from August 11-15, 2025. The logo includes a black and white flamingo made up of other animals.

🚨SAVE THE DATE 🚨 The 17th Ecology & Behaviour is back at the CEFE!
Join us from August 11-15, 2025. Don't miss out!

Sign up here for updates: listes.services.cnrs.fr/wws/subscrib...
And, of course, follow us here! #ecobhvr2025

22.11.2024 13:34 β€” πŸ‘ 25    πŸ” 20    πŸ’¬ 1    πŸ“Œ 3
Megasete offshore solar farm, by SolarinBlue

Megasete offshore solar farm, by SolarinBlue

We recruit a research engineer to examine the potential impacts of an offshore solar farm on biofouling communities and fish early life-stages, through fieldwork (monitoring and sampling) and experimental (ecotoxicology) approaches.
emploi.cnrs.fr/Offres/CDD/U... (in FRENCH)

13.12.2024 14:52 β€” πŸ‘ 3    πŸ” 2    πŸ’¬ 0    πŸ“Œ 1
Code-sharing policies are associated with increased reproducibility potential of ecological findings

In 2020, we showed that studies published in ecological journals WITH a code-sharing policy showed a 21% reproducibility potential at max (Culina et al 2020, @plosbiology.bsky.social)

We've now investigated journals WITHOUT a code-sharing policy. The results are worrying.

πŸ“° doi.org/10.32942/X21...

10.12.2024 07:38 β€” πŸ‘ 86    πŸ” 37    πŸ’¬ 4    πŸ“Œ 2
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Want to do a Marie Curie project on seabirds with us? We work on stressors, contaminants, physiology, aging, demography. Great fieldwork in Svalbard, Antarctica, French Guyana, France. Lab facilities (hormones, telomeres), biologging, long-term CMR program.
CEBC, France
@ecophycebc.bsky.social

08.12.2024 12:28 β€” πŸ‘ 15    πŸ” 10    πŸ’¬ 0    πŸ“Œ 0
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Two days ago, I shared my story of having my identity stolen to publish fake peer reviews

The number of academics who have reached out with similar stories is shockingβ€”impersonated in the same way, receiving AI-written reviews, reviewing AI-written articles, etc

www.science.org/content/arti...

05.12.2024 12:31 β€” πŸ‘ 25    πŸ” 11    πŸ’¬ 0    πŸ“Œ 1

Hi Diane, thank you for the great starter pack! Could you please add me as well? :)

26.11.2024 20:14 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Preview
Salty surprises: Developmental and behavioral responses to environmental salinity reveal higher tolerance of inland rather than coastal Bufo spinosus tadpoles Salinization is predicted to intensify due to climate change, impacting biodiversity and ecosystem functioning. Amphibians, particularly embryos and l…

Here we go 🀩 Léa Lorrain-Soligon's latest article
Made with a wonderful team 😍
🐸 πŸ§‚
Salty surprises: Developmental and behavioral responses to environmental salinity reveal higher tolerance of inland rather than coastal Bufo spinosus tadpoles www.sciencedirect.com/science/arti...

25.11.2024 08:12 β€” πŸ‘ 5    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0

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