INSTITUTO DE DIVERSIDAD Y ECOLOGIA ANIMAL
Unidad Ejecutora - UE
capítulos de libros
Copulatory and Post-copulatory Sexual Selection in Haplogyne Spiders, with Emphasis on Pholcidae and Oonopidae
CALBACHO-ROSA, L.; PERETTI, A. V.
Cryptic Female Choice in Arthropods: Patterns, Mechanisms and Prospects
Lugar: Zurich; Año: 2015; p. 109 - 144
Cryptic female choice (CFC) in spiders may involve several mechanismsto bias paternity including early termination of copulation, remating likelihood,and sperm dumping. In Pholcidae, these mechanisms seem to be very common andwill be examined in the present chapter. In the Pholcidae Physocyclus globosus,sperm dumping involves an active role of the female. In contrast, in the PholcidaeHolocnemus pluchei, sperm mass ejection during copulation is mainly under malecontrol. In another haplogyne spider, the Oonopidae Opopaea fosuma, females areable to influence male?s chances of rearing their offspring by also exerting CFC bysperm dumping. Among pholcids, rhythmic genitalic movements of the pedipalps(squeezes) during copulation have been interpreted as genitalic copulatory courtship.Additionally, recent studies have evaluated the possibility that the outcomeof male?female copulatory communication affects paternity. Future attention to thebehavior of both female and male, and to the possible dialogues during copulation,promises to be a valuable tool in understanding sexual interactions in these spiders.