A comparative investigation of the mating system of Drosophila hydei

摘要: Drosophila hydei mating system characteristics were studied and compared to what has been observed for two other species. Hydei females will copulate when they are 3 days old, while males do not exhibit courtship behaviour until 9 old. Unlike any Drosophila, D. re-mate as often four times in one morning. However, re-mating the same morning does increase number of progeny a female produces. Male appear deal with continual receptivity pressures sperm competition by passing less material given but maintaining constant level fertility across numerous successive copulations. is cosmopolitan species which utilizes wide variety resources. As melanogaster, another closely related it, male success appears be dependent upon genetic quality only. This pattern differs from that its relative mojavensis, cactiphilic endomic Sonoran desert, contribute benefits their ejaculate.