Dynamics of intrafamily aggression and social reintegration in lion tamarins
Abstract 10.1002/zoo.1430080109.abs Intrafamily aggression poses a critical problem in the captive maintenance of callitrichid social groups. Group cohesion and individual health is threatened by aggressive altercations. This paper discusses several aspects of lion tamarin aggression. To investigate the demography of intrafamily aggression in golden lion tamarins, we reviewed instances of family-group aggression from our facilities […]
Do mothers prefer helpers? Birth sex-ratio adjustment in captive callitrichines
Parental investment theory predicts that natural selection will favour a parental ability to bias the offspring sex ratio in favour of that which will yield the highest benefit–cost payoff. The local resource enhancement hypothesis posits that in cooperative breeders, parents may favour offspring that will mitigate parental effort by helping to raise younger siblings. Conversely, […]