(Solved): A resource-defense mating system in terrestrial vertebrates is frequently associated with female ph ...

A resource-defense mating system in terrestrial vertebrates is frequently associated with female philopatry. female-biased dispersal. male philopatry. male-biased dispersal. Reproductive suppression through either chemical means (e.g.. pheromones) or behavioral means (e.g., aggression) is a potential cost associated with natal dispersal. natal philopatry. breeding dispersal. habitat selection. Females of the t?ngara frog (Physalaemus coloradorum) prefer calls by males that have had "chucks" artificially added to them over the normal male calls of their own species. The chucks are a normal part of the male calls of a congeneric frog species (Physalaemus pustulosus), in which females prefer males that produce low frequency chucks. This suggests that the female preference for chuck calls is disappearing in this genus. was the result of genetic drift. developed after the chuck calls had evolved. exploited an existing sensory bias.