Effects of age at pairing on reproduction in captive California condors (Gymnogyps californianus)

Abstract 10.1002/zoo.1430130103.abs The lack of breeding behavior seen in some pairs of adult California condors, Gymnogyps californianus, is of great concern for the captive breeding program. One possible cause for absent or delayed breeding in what are otherwise seemingly compatible animals is inbreeding avoidance behavior. To examine this possibility, housing and reproduction records were examined […]

Dispersal among male ring-tailed lemurs (Lemur catta) on St. Catherines Island

Male dispersal patterns were analyzed across a nine-year period in a population of ring-tailed lemurs (Lemur catta) on St. Catherines Island (SCI), USA, to evaluate two ultimate explanations for male dispersal: inbreeding avoidance and intrasexual mating competition. As part of this analysis, we also compared patterns of dispersal at this site with data from wild […]

Contrasting context dependence of familiarity and kinship in animal social networks

The social structure of a population is a crucial element of an individual’s environment, fundamentally influencing the transfer of genes, information and diseases. A central question in social network analysis is how different traits affect associations within populations. However, previous studies of animal social networks have typically focused on a single predictor or stage in […]