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Social network inheritance and differentiation in wild baboons.
Vittoria Roatti1,2, Guy Cowlishaw2, Elise Huchard3
1Anthropology Department, University College London, London WC1E 6BT, UK.
Royal Society Open Science
|May 26, 2023
Summary
Young baboons inherit social networks from their mothers and develop age- and sex-specific social connections. Males become more peripheral with age than females, impacting social information flow.
Area of Science:
- Primate social behavior
- Developmental biology
- Behavioral ecology
Background:
- Understanding social development in immature animals is crucial for comprehending group dynamics and information transfer.
- Social networks can influence learning and adaptation within animal groups.
- Age and sex are known factors that can shape social interactions in various species.
Purpose of the Study:
- To investigate how social networks evolve with age in immature baboons.
- To determine sex-specific differences in the social development of young baboons.
- To understand the role of matrilineal inheritance in shaping social networks.
Main Methods:
- Observational study of wild immature baboons.
- Social network analysis to quantify associations.
- Longitudinal tracking of individuals over time.
- Comparison of network structures between males and females.
Main Results:
- Immature baboons initially inherit their mothers' social networks.
- Social networks shift with age, favoring same-age and same-sex associations.
- Males show decreased matrilineal bonding and increased peripheralization with age compared to females.
Conclusions:
- Social development in immature baboons is characterized by a transition from inherited to age- and sex-assortment.
- Sex-specific trajectories in social network development are evident.
- Findings suggest that in female-philopatric societies, social information transmission may be structured within matrilines, influenced by age and sex clustering.