Testing the priority-of-access model in a seasonally breeding primate species
Open Access
- 25 March 2011
- journal article
- research article
- Published by Springer Nature in Behavioral Ecology and Sociobiology
- Vol. 65 (8), 1615-1627
- https://doi.org/10.1007/s00265-011-1172-8
Abstract
In mammals, when females are clumped in space, male access to receptive females is usually determined by a dominance hierarchy based on fighting ability. In polygynandrous primates, as opposed to most mammalian species, the strength of the relationship between male social status and reproductive success varies greatly. It has been proposed that the degree to which paternity is determined by male rank decreases with increasing female reproductive synchrony. The priority-of-access model (PoA) predicts male reproductive success based on female synchrony and male dominance rank. To date, most tests of the PoA using paternity data involved nonseasonally breeding species. Here, we examine whether the PoA explains the relatively low reproductive skew in relation to dominance rank reported in the rhesus macaque, a strictly seasonal species. We collected behavioral, genetic, and hormonal data on one group of the free-ranging population on Cayo Santiago (Puerto Rico) for 2 years. The PoA correctly predicted the steepness of male reproductive skew, but not its relationship to male dominance: the most successful sire, fathering one third of the infants, was high but not top ranking. In contrast, mating success was not significantly skewed, suggesting that other mechanisms than social status contributed to male reproductive success. Dominance may be less important for paternity in rhesus macaques than in other primate species because it is reached through queuing rather than contest, leading to alpha males not necessarily being the strongest or most attractive male. More work is needed to fully elucidate the mechanisms determining paternity in rhesus macaques.Keywords
This publication has 82 references indexed in Scilit:
- Social capital and physiological stress levels in free-ranging adult female rhesus macaquesPhysiology & Behavior, 2011
- Mating skew in Barbary macaque males: the role of female mating synchrony, female behavior, and male–male coalitionsBehavioral Ecology and Sociobiology, 2010
- The utility of reproductive skew models in the study of male primates, a critical evaluationEvolutionary Anthropology, 2010
- Male dominance rank and reproductive success in chimpanzees, Pan troglodytes schweinfurthiiAnimal Behaviour, 2009
- Female reproductive synchrony predicts skewed paternity across primatesBehavioral Ecology, 2008
- Sex differences in survival costs of reproduction in a promiscuous primateBehavioral Ecology and Sociobiology, 2008
- Queuing and queue-jumping: long-term patterns of reproductive skew in male savannah baboons, Papio cynocephalusAnimal Behaviour, 2003
- Do female rhesus macaques choose novel males?American Journal of Primatology, 1995
- Testis size, epididymis weight, and sperm competition in rhesus macaquesAmerican Journal of Primatology, 1993
- Seasonal sex skin coloration and hormonal fluctuations in free-ranging and captive monkeysHormones and Behavior, 1976