Parasitic nursing behavior in the wedge-capped capuchin monkey (Cebus olivaceus)
1Department of Range and Wildlife Sciences, University of Florida, Gainesville.
American Journal of Primatology
|February 22, 2020
Summary
In wild capuchin monkeys, females were observed nursing from other adult females. This exploitative behavior benefits the suckling female at the expense of the nursing female.
Area of Science:
- Primate behavior
- Mammalian social dynamics
- Animal interactions
Background:
- Non-offspring nursing, also known as allosuckling, is a rare behavior observed in some mammal species.
- Understanding the ecological and social drivers of allosuckling is crucial for comprehending primate social systems.
Purpose of the Study:
- To document and analyze instances of allosuckling in wild wedge-capped capuchin monkeys (Cebus olivaceus).
- To investigate the social context and potential benefits/costs of this behavior for the individuals involved.
Main Methods:
- Observational study of two wild groups of wedge-capped capuchin monkeys.
- Recording instances of nursing interactions between adult females, noting the social ranks of participants.
Main Results:
- Allosuckling events were observed involving both juvenile and adult females.
- In all observed cases, a higher-ranking female nursed from a lower-ranking female.
- The suckling female appeared to benefit, while the nursing female may have incurred a cost.
Conclusions:
- Allosuckling in wedge-capped capuchins represents an exploitative interaction.
- This behavior highlights complex social dynamics and potential resource exploitation within primate groups.
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