Male resource defense mating system in primates? An experimental test in wild capuchin monkeys.

摘要: Ecological models of mating systems provide a theoretical framework to predict the effect defendability both breeding resources and partners on patterns. In resource-based systems, male control over is tightly linked female preference. To date, few field studies have experimentally investigated relationship between resource preference in mammals due difficulties manipulating ecological factors (e.g., food contestability). We tested within-group defense hypothesis wild population black capuchin monkeys (Sapajus nigritus) Iguazu National Park, Argentina. Sapajus spp. represent an ideal study model as, contrast most primates, they been previously argued be characterized by mate choice system which monopolization high-ranking males drives for those males. Here, we examined whether females (N = 12) showed weaker alpha during seasons distribution was manipulated less defendable relative it highly defendable. Results did not support hypothesis, as sexual preferences vary based defendability. discuss possible reasons our results, including possibility other direct indirect benefits receive exercising choice, potential lack tolerance directed towards males, phylogenetic constraints.