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Syrphe porte-plume (Sphaerophoria scripta), un visiteur assidu de la moutarde blanche (Sinapis alba) du printemps à l’automne. (©Benoît Geslin)

No off-season for insect pollinators in the city!

In the city, the seasonal patterns of activity of insect pollinators could be disturbed by the urban microclimate as well as by the presence of ornamental flora. To study this phenomenon, Vincent Zaninotto and his collaborators monitored the activity of insect pollinators in Paris and in the natural environment, from late winter to autumn. In […]

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Diversite-corps-fourmi-en-cercle

Worker size diversity does not improve colony success in the ant Temnothorax nylanderi

Social groups consist of individuals that differ from one another, and many studies show that this diversity improves group efficiency. In social insects, size diversity can, for example, improve the efficiency of foraging, nest building, brood rearing and production of young queens. Thus, colonies that re more diverse are generally also more efficient. Romain Honorio […]

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protistes

Environmental pulse disturbances disproportionately affect large body size species

Smaller organisms are typically more abundant than larger ones, which is a fundamental characteristic of ecological communities. How environmental pulse disturbances affect these « abundance pyramids » remains poorly understood. In a study recently published in Ecology Letters, researchers from iEES Paris and the University of Zürich showed that disturbances which are not size-selective still […]

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Antenne de papillon au microscope électronique à balayage

Neuroethology of olfaction “NeO” Team

Team publications Team members Our experimental and modelling studies aim at understanding the mechanisms involved in the recognition of the olfactory signal and its translation in a behavioural response adapted to the environment and the physiological state of insects.These studies concern the processes of sensory coding, from the chemo-electrical transduction in the olfactory receptor neurones to […]

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Papillon

Chemoreception and Adaptation “CreA” Team

Team publications Team members The team investigates the mechanisms of olfactory and gustatory reception in the peripheral sensory systems and their plasticity in a changing biotic and abiotic environment.We take into account the evolutionary, adaptive and ecophysiological / ecotoxicological contexts. Our questions are : What are the chemical landscapes the insects leave in ? What are […]

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fourmis et pucerons

Social Species in their Environments : Adaptation and Evolution “ESEAE” Team

Team publications Team members The aim of the ESEAE team is to understand how social life influences the mechanisms of evolution and adaptation of social species, their biodiversity, and their interactions with other species.  Environmental changes are a central theme. Our biological models are mainly termites and ants. We use an integrative approach that focuses on morphology, physiology, […]

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mésange

Evolutionary Ecophysiology “EPE” Team

Team publications Team members Studies in evolutionary ecology aims to understand how biological traits are controlled by natural and sexual selection. These studies examine how environmental selection pressures influence one hand the production and survival of young and secondly the dynamics of populations and ecosystems. These studies often ignore the physiological mechanisms involved in developmental processes […]

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Savanne

Integrative Ecology : from Mechanisms to Ecosystem services “EMS” Team

Team publications Team members Pas de traduction pour cette page. Nous cherchons à comprendre et analyser expérimentalement ou par des observations, puis à représenter par des modèles couplés, les grands cycles de la matière (nutriments minéraux, carbone) en prenant en compte à la fois des processus classiquement étudiés en écologie des écosystèmes (ex : nitrification ou […]

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