Strong and Consistent Social Bonds Enhance the Longevity of Female Baboons

Joan B. Silk, Jacinta C. Beehner, Thore J. Bergman, Catherine Crockford, Anne L. Engh, Liza R. Moscovice, Roman Martin Wittig, Robert M. Seyfarth, Dorothy L. Cheney

Research output: Contribution to journalArticlepeer-review

403 Citations (Scopus)

Abstract

Longevity is a major component of variation in fitness in long-lived iteroparous species [1-4]. Among female baboons, variation in breeding lifespan accounts for approximately 50% of the variation in lifetime fitness [5, 6]. However, we know little about the causes of variation in longevity in primates or other long-lived mammals. Savannah baboons form strong, equitable, and enduring relationships with specific female partners, particularly with close relatives and agemates [7-10]. The quality of females' social relationships influences their ability to cope with stressful events [11-13] and is associated with variation in female reproductive success [9, 14]. Here we show that dominance rank and the quality of close social bonds have independent effects on the longevity of female chacma baboons (Papio hamadryas ursinus). High-ranking females live longer than lower-ranking females. In addition, females who form stronger and more stable social bonds with other females live significantly longer than females who form weaker and less stable relationships. These data extend our understanding of the adaptive value of social bonds in baboons and complement a growing body of evidence that indicates that social bonds have adaptive value in a range of taxa, from mice to humans [9, 14-19].

Original languageEnglish
Pages (from-to)1359-1361
Number of pages3
JournalCurrent Biology
Volume20
Issue number15
DOIs
Publication statusPublished - 10 Aug 2010

Keywords

  • PAPIO-HAMADRYAS-URSINUS
  • CHACMA BABOONS
  • NETWORKS
  • MORTALITY
  • FITNESS
  • MECHANISMS
  • PREDATION
  • SURVIVAL
  • HEALTH

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