Variability in reproductive success viewed from a life-history perspective in baboons
Article first published online: 14 APR 2003
Copyright © 2003 Wiley-Liss, Inc.
American Journal of Human Biology
Volume 15, Issue 3, pages 401–409, May/June 2003
How to Cite
Altmann, J. and Alberts, S. C. (2003), Variability in reproductive success viewed from a life-history perspective in baboons. Am. J. Hum. Biol., 15: 401–409. doi: 10.1002/ajhb.10157
- Issue published online: 14 APR 2003
- Article first published online: 14 APR 2003
- Manuscript Accepted: 4 NOV 2002
- Manuscript Received: 16 AUG 2002
Nonhuman primates, like humans, mature slowly and have low fertility during a relatively long life. As data have accumulated on life-history patterns of nonhuman primates, comparative studies have yielded important insights into the evolution of this slow life-history style of primates. However, in order to understand selection pressures and evolutionary potential within species, it is important to complement comparative studies with detailed studies of life-history variability within species and to identify sources of this variability. Here we present a summary of how foraging environment, social status, and group size (a measure of population density) contribute to within-population variance in reproductive success for savannah baboons. We also discuss the extent to which savannah baboons, with their highly flexible and adaptable behavior, change their foraging environments by shifting home ranges and seeking rich food sources and how low-ranking females, which disproportionately bear the costs of social life, may mitigate those costs. Am. J. Hum. Biol. 15:401–409, 2003. © 2003 Wiley-Liss, Inc.