Partner's behavior, not reward distribution, determines success in an unequal cooperative task in capuchin monkeys

Article Abstract:

A study was conducted to determine how capuchins reacted to inequitable rewards in an unrestricted cooperative paradigm, and which reward they would receive for their participation. It was observed that equity of the reward distribution did not affect success or pulling behavior, but the behavior of the partner in an unequal situation - such as who received higher-value food - affected overall success rates, and the ability to equitably distribute rewards had profound implications for activities such as group hunts.

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Partner effects on food consumption in brown capuchin monkeys

Article Abstract:

The food collection and food consumption in pairs of brown capuchin monkeys (Cebus apella) presented with unequally valued foods, but without any task performance are analyzed. Analysis shows that equity or inequity plays a different role if food is served as a reward for a task rather than if it is simply made available for consumption.

Georgia, Analysis, Food and nutrition, Foraging, Foraging (Animal feeding behavior), Cebus apella

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Why do captive tufted capuchins (Cebus apella) urine wash?

Article Abstract:

A study assesses the functions of urine wash (UW) in captive tufted capuchins by examining common hypotheses of thermoregulation or territorial communication. Results suggest that UW in capuchins may be associated with sexual encounters, receiving aggression, an appeasement mechanism or a stress reliever.

United States, Public affairs, Social aspects

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