Costs and benefits of territorial defense in wild golden lion tamarins, Leontopithecus rosalia

摘要: The costs and benefits of territorial defense were examined in a group five wild golden lion tamarins, Leontopithecus rosalia, at Poco d'Antas Biological reserve, Rio de Janeiro, Brazil. I the effects both interference exploitative competition between groups tamarins by comparing their use space, time budgets foraging success different contexts intergroup interactions quadrats shared not other groups. Tamarins spent more moving vocalizing, less feeding, foraging, resting during encounters than non-encounter contexts. Irrespective distance, overlapping areas range periphery expected on basis quadrat availability. In those areas, however, per unit effort was lower exclusive center. This suggests that access to high payoff central depended costly (by exploitation) periphery. Time energy invested resident (1) increased availability food center, (2) minimized loss neighboring These are likely justify for an animal which depends easily-depletable supplies, such as prey microhabitats small concentrations fruits nectar.