Thomas Lecocq

TL;DR: In this paper, maps depicting potential risks of climate change for bumble bees are shown together with informative summary statistics, ecological background information and a picture of each European species, thanks to the EU FP7 project STEP, the authors gathered over one million bumblebee records from all over Europe.

TL;DR: It is shown that extracts from the heads of young cuckoo bumblebee males contain a repellent odor that prevents parasite males from being attacked by host workers, and that social parasitism reduces host worker aggressiveness and helps parasite offspring acceptance.

TL;DR: It is hypothesized that Corsican bumblebee divergence was driven by a persistent lack of gene flow with mainland populations and reinforced by the preference of Corsican females for sympatric (Corsican) MMS, and comparative chemical analyses of MMS indicate that Corsica populations of bumblebees are significantly differentiated from the mainland yet they hold comparative levels of within-population MMS variability compared to the mainland.

TL;DR: This study suggests that population movement during Quaternary climatic oscillations can lead to divergence in reproductive traits by allopatric differentiation during Ice Ages and by reinforcement during post-glacial recolonization.

TL;DR: The results show a heat resistance gradient: the heat stress resistance ofspecies with a centred arctic distribution is weaker than the heat resistance of the Boreo-Alpine species with a larger distribution which is itself lower than theHeat stress Resistance of the ubiquitous species.