Join EGCE!
EGCE is recruiting an administrative management technician (M/F). The application deadline is August 7, 2026. The contract is for 24 months. For more details: https://emploi-recrutement.ird.fr/offre-de-emploi/emploi-technicien-ne-en-gestion-administrative-h-f_777.aspx
Bees and pyrethroids
Pyrethroid pesticides are highly toxic to bees. But are the bees’ perception, memory, and learning centers affected by sublethal doses of these substances?Using a battery of cognitive tests, researchers were able to show that habituation and olfactory learning are indeed affected. However, calcium imaging experiments showed that for certain pesticides, the antennal lobes of bees
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Asymetry Left/right
The scientific article “Evolution of a novel left-right asymmetry in organ size by co-option of a tissue rotation process,” published by the team of Michael Lang and Virginie Courtier-Orgogozo (Bénédicte M. Lefèvre, Marine Delvigne, Aurélie Camprodon, Josué Vidal, Virginie Courtier-Orgogozo, and Michael Lang), is one of three articles selected for the 2025 Development Outstanding Paper
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Homeschooling programs children at IDEEV
A group of about thirty children and parents from homeschooling programs visited IDEEV on March 31st for workshops. They listened to Matthieu Falque (GQE-Le Moulon) talk about DNA and Lucas Jacquier (ESE) discuss the movements of vultures. In addition, Karine Alix (GQE-Le Moulon) presented the “Goat and Cabbage” quiz game, adapted for a general audience,
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High school class at IDEEV
A high school class came from Sedan to visit IDEEV the 12th of March. They visited the glasshouse and the insectarium. For more details: https://www.ideev.universite-paris-saclay.fr/news/2026/03/de-jeunes-ardennais-%C3%A0-lideev.
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Flowers to the rescue of crops
Animal pollination is essential for many cultivated and wild plants. However, this service is threatened by the decline in pollinator populations. What can be done? One solution could be planting flower beds designed to attract pollinators near crops as shown for appletrees. Experiments have shown that the hypothesis that these flower beds would instead compete
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Gene plasticity and regulation
What are the properties of gene regulation in genes whose expression is sensitive to environmental factors (plastic genes), as opposed to genes whose expression is independent of the environment (non-plastic genes)? Empirical and theoretical approaches have consistently revealed that plastic genes possess, on average, a greater number of regulators. Furthermore, theoretical predictions have shown that
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Drosophila and Phenotypic plasticity
In Drosophila, heterozygous individuals—carrying different forms of the same coloration gene—exhibit greater phenotypic plasticity (the ability to change color in response to the environment) compared to homozygotes. This enhances genetic diversity within populations and facilitates rapid adaptation to environmental changes. Phenotypic plasticity as a function of genetic polymorphism: thermal dominance reversal in Drosophila species with
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