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Puberty and dispersal in a wild primate population
Patrick O Onyango1, Laurence R Gesquiere, Jeanne Altmann
1Department of Biology, Duke University, Durham, NC, USA. patrick.onyango@duke.edu
Maturation in wild baboons involves significant physical and behavioral changes. Social environment and food availability influence puberty timing, with males maturing later than females.
Area of Science:
- Primate Ecology
- Developmental Biology
- Behavioral Ecology
Background:
- Reproductive maturation involves complex morphological, physiological, and behavioral changes.
- In social mammals, maturation timing is influenced by social and ecological factors.
- Understanding primate maturation provides insights into life history strategies.
Purpose of the Study:
- To review maturation processes in wild baboons (Amboseli basin).
- To compare baboon maturation with other primate and mammal species.
- To identify factors influencing variation in maturation timing.
Main Methods:
- Review of diverse findings on wild baboon maturation.
- Analysis of sex differences in sexual maturity and first reproduction.
- Examination of environmental and social influences on maturation schedules.
Main Results:
- Males mature later than females, with a distinct adolescent growth spurt.
- Food-enhanced baboon groups show earlier maturation.
- Offspring of high-ranking females mature earlier.
- Genetic admixture impacts individual maturation schedules.
Conclusions:
- Baboon maturation aligns with life history theory predictions.
- Social and ecological factors significantly modulate primate maturation.
- Amboseli baboons provide a model for studying developmental plasticity.
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