Joséphine Ledamoisel

Two rainforest butterflies have evolved to look more alike, likely to confuse shared predators. But why don’t they get confused themselves?

To avoid mating with the wrong species, they’ve cleverly evolved distinct scents.
buff.ly/fxVrlCI

Finally out in Elife @elife.bsky.social : well done @joledamoisel.bsky.social ! Convergent iridescence and divergent chemical signals in sympatric sister-species of Amazonian butterflies doi.org/10.7554/eLif...

Huge thanks to all the co-authors : Bruno Buatois, Rémi Mauxion, Christine Andraud, Mélanie McClure, Vincent Debat @vincentdebat.bsky.social and Violaine Llaurens ✨️

Convergent iridescence and divergent chemical signals in sympatric sister-species of Amazonian butterflies Ecological interactions exert contrasting evolutionary pressures on sympatric Morpho butterflies, promoting convergence in iridescence but divergence in chemical cues, illustrating how ecological inte...

My first paper as a first author is officially out 🎉 @elife.bsky.social

We show that the iridescent colour of Morphos 🦋 tends to converge in sympatry while their chemical signals diverge, illustrating the constrasting effect natural and sexual selection on trait evolution.

doi.org/10.7554/eLif...

🌍🦋 Across 6 continents, 21 sites & 15,000 paper moths, we joined a worldwide experiment led by @wlallen.bsky.social & Iliana Medina, showing how ecological context shapes the evolution of animal colouration.

Proud to be part of this global team effort: doi.org/10.1126/scie...

Very excited to release our new paper !
We characterized the thermal and temporal niches of a community of closely related Morpho butterflies, and found very significant ties between micro-habitat and thermal traits.

nsojournals.onlinelibrary.wiley.com/doi/full/10....

🦋☀️Vertical and temporal niche partitioning in Amazonian butterflies: implications for the evolution of thermal tolerance

🎨 © Céline Louis-Clyiss

vist.ly/45dnq

#Butterfly #Community #EvolutionaryEcology #TemporalNiche #ThermalResistance #VerticalStratification

Hybridization and introgression are major evolutionary processes. Since the 1940s, the prevailing view has been that they shape plants far more than animals. In our new study (www.science.org/doi/10.1126/...
), we find the opposite: animals exchange genes more, and for longer, than plants

[Prix Recherche SFE²] Lauréate 2025 - Violaine Llaurens - sfecologie.org Toutes nos félicitations à Violaine Llaurens (DR CNRS, CIRB & ISYEB, Paris & Université des Antilles), lauréate du Prix Recherche SFE² 2025.

Congrats to Violaine for this well deserved prize!! Champagne!
sfecologie.org/2025/07/16/p...

Evolution of opsin genes in closely-related species of butterflies specialized in different microhabitats. https://www.biorxiv.org/content/10.1101/2025.06.13.659549v1

Thanks to our great team: Andrew Dang, @juliendevilliers.bsky.social, Tiphaine Marvillet, Sophie Lemoine, Manuela López-Villavicencio, @adrianabriscoe.bsky.social, @vincentdebat.bsky.social and Violaine Llaurens

Really happy to share our new paper ! We characterized the Morpho butterfly visual system, and found a link between opsin evolution, wing coloration and light habitat. We also highlight correlated evolution between amino acids from different opsin genes at a molecular scale !

The list of words the Trump administration has banned from research grants is even longer than the lists I’ve seen online. Here are screenshots of the words confirmed by the NYTimes and listed in this article www.nytimes.com/interactive/...

CDC Scientists Ordered to Withdraw Studies That Say ‘LGBT’ or ‘Pregnant People’

Scientists at the CDC were ordered late on Friday to withdraw any pending publications, at any scientific journal, that mention terms such as “transgender,” “immigrant,” “LGBT” or “pregnant people.”

Remous au CNRS autour du projet de création de labos d’excellence Suite à l’annonce de la création des « Key Labs » , le 12 décembre, par Antoine Petit, président-directeur général du CNRS, une motion de défiance appelant à leur « arrêt immédiat » et à la démission du PDG a recueilli près de 5 000 signatures.

Remous au CNRS autour du projet de création de labos d’excellence

Really happy to share the preprint of my first paper! We investigate the co-existence of Morpho sister-species in sympatry. We find convergent iridescence in sympatry consistent with the hypothesis of evasive mimicry and divergent chemical signals, putatively involved in mate recognition.

Convergent iridescence in sympatric Morpho butterfly species! New preprint by @joledamoisel.bsky.social

Testing whether butterfly tails deflect birds attacks - here a Charaxes jasius

Help us understand how conspicuous butterflies are by playing this game!

mferickson.github.io/findbutterfly/