Factors determining male introduction success and long-term stability in captive rhesus macaques
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View abstract on PubMed
Summary
This summary is machine-generated.Introducing new males into captive primate groups is challenging. Success depends on male age, weight, and group composition, particularly avoiding pregnant females, to ensure stable social integration.
Area Of Science
- Primate behavior and social dynamics
- Captive animal management
- Conservation biology
Background
- Male migration in non-human primates is essential for genetic diversity but carries social risks.
- Understanding factors influencing male acceptance in captive groups is critical for effective management.
Purpose Of The Study
- To identify key factors determining the success and long-term stability of male rhesus macaque introductions into captive one-male groups.
- To provide insights for improving introduction management strategies in captive primate populations.
Main Methods
- Analysis of 64 male introductions in captive rhesus macaques (Macaca mulatta) at a breeding colony.
- Assessment of introduction success (≥4 weeks stay) and long-term stability (minimal behavioral issues).
Main Results
- 77% of introductions were successful, with 59% achieving long-term stability.
- Successful introductions involved prime-aged males entering groups with more adult females and no pregnant females.
- Long-term stability was associated with heavier males, removal from natal groups at ≥3.5 years, and groups with few matrilines and no pregnant females.
Conclusions
- Introduction success and stability are influenced by male characteristics and group composition, mirroring natural social dynamics.
- Composing naturalistic groups and mimicking natural migration patterns are vital for maintaining stable captive breeding groups.
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