Dyadic behavioural interactions in cockroaches (Blaberidae): ecomorphological and evolutionary implications

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Legendre, Frédéric | Deleporte, Pierre | Depraetere, Marion | Gasc, Amandine | Pellens, Roseli | Grandcolas, Philippe

Edité par CCSD ; Brill Academic Publishers -

International audience. Few studies have assessed the relative importance of morphological, ecological and phylogenetic factors in the evolution of social behaviour. We examine the role of these factors in social evolution among blaberid cockroaches. We first analyse and compare behavioural interactions in 13 species. We then ask how the nature of these interactions relates to body shape, phylogeny and habitat. We showed that, although these cockroaches display diverse behavioural interactions, a structure in these data exists with some species clustering together. We found that similarity in social interactions was related to species body shape, but not to ecology or phylogenetic relationships. We suggest that body shape plays an important role in the evolution of social behaviour and that this factor should be investigated further in future analyses

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