Tabanidae (Dipt) de France - III
Euthycera flavostriata (Villeneuve 1911), Diptère Sciomyzide originaire du Moyen Orient est redécrit. La diagnose de l'espèce est précisée et la structure des pièces génitales mâles est donnée pour la première fois.
Peer reviewed
Peer reviewed
Peer reviewed
Peer reviewed
We present an empirical test of the ‘Ghiselin—Reiss small-male hypothesis’ for the evolution of sexual size dimorphism (SSD). In mating systems dominated by scramble competition, where male reproductive success is a function of encounter rate with females, small males may be favoured when food is limiting because they require lower absolute amounts...
Field phenologies of high- (ca. 1500 m) and low- (ca. 500 m) altitude populations of the two most common European species of dung flies, Scathophaga stercoraria and Sepsis cynipsea, differ quite markedly due to differences in climate. To differentiate genetic adaptation due to natural selection and phenotypic plasticity, I compared standard life hi...
The effects of rearing temperature (and photoperiod) on growth, development, body size, and diapause induction and termination in the yellow dung fly, Scathophaga stercoraria, were investigated by allowing replicate families of larvae to develop in the field along a time sequence approaching the onset of winter. This was supplemented with extensive...