IDEA   23902
INSTITUTO DE DIVERSIDAD Y ECOLOGIA ANIMAL
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Reproductive biology of scorpions: patterns and mechanisms of sexual selection
Autor/es:
PERETTI, A. V.; OLIVERO, P.; VRECH, D.
Lugar:
Golden, Colorado
Reunión:
Congreso; 20th International Congress of Archnology. In Symposium: ?The Biology of Scorpions II ? Scorpion Biology in the 21th Century?; 2017
Institución organizadora:
American Arachnological Society (AAS) & International Society of Arachnology (ISA)
Resumen:
In the last years, there was an increase in research oriented to sexual selection of scorpions.However, the knowledge remains partial and fragmented: 1) few global studies in aworldwide context, in particular in comparative analyses; 2) lack of long-term investigationson key topics such as mate choice, sperm competition, cryptic female choice, and sexualconflict. In the present talk, firstly, I will review the history of the study of reproductivebiology of scorpions by means of a detailed survey. Secondly, I will show examples onpresence of precopulatory and postcopulatory sexual selection, including morphological andecological traits. In these two contexts, I will analyze our baseline knowledge and ga ps on: a)patterns of intersexual communication; b) genitalia and mating plugs; c) links betweenprecopulatory and postcopulatory mechanisms; d) rules and exceptions in reproductiveecology (sexual sting, sexual cannibalism). For example, some studies show that during theprecopulatory phase, scorpion males appear to use luring rather than coercive behaviors wh enfacing resisting females. In postcopulatory sexual interactions, as predicted by the spermcompetition theory, testes mass increases with higher levels of sperm competition. Thereview ends w ith prospects for integrative studies on proximate and ultimate causes of sexualselection.