The benefits of social capital

Close social bonds among female baboons enhance offspring survival

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

Research output: Contribution to journalArticle

306 Citations (Scopus)

Abstract

Sociality has evolved in many animal taxa, but primates are unusual because they establish highly differentiated bonds with other group members. Such bonds are particularly pronounced among females in species like baboons, with female philopatry and male dispersal. These relationships seem to confer a number of short-term benefits on females, and sociality enhances infant survival in some populations. However, the long-term consequences of social bonds among adult females have not been well established. Here we provide the first direct evidence that social relationships among female baboons convey fitness benefits. In a group of free-ranging baboons, Papio cynocephalus ursinus, the offspring of females who formed strong social bonds with other females lived significantly longer than the offspring of females who formed weaker social bonds. These survival benefits were independent of maternal dominance rank and number of kin and extended into offspring adulthood. In particular, females who formed stronger bonds with their mothers and adult daughters experienced higher offspring survival rates than females who formed weaker bonds. For females lacking mothers or adult daughters, offspring survival was closely linked to bonds between maternal sisters. These results parallel those from human studies, which show that greater social integration is generally associated with reduced mortality and better physical and mental health, particularly for women.

Original languageEnglish (US)
Pages (from-to)3099-3104
Number of pages6
JournalProceedings of the Royal Society B: Biological Sciences
Volume276
Issue number1670
DOIs
StatePublished - Sep 7 2009
Externally publishedYes

Fingerprint

social capital
Papio
Animals
Health
Survival
Adult Children
Mothers
Papio ursinus
Social Capital
Primates
Papio cynocephalus
philopatry
mental health
adulthood
primate
dominance (genetics)
Siblings
Mental Health
fitness
Survival Rate

Keywords

  • Baboons
  • Female relationships
  • Fitness
  • Primates
  • Social bonds
  • Social capital

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Environmental Science(all)
  • Immunology and Microbiology(all)
  • Medicine(all)

Cite this

The benefits of social capital : Close social bonds among female baboons enhance offspring survival. / Silk, Joan; Beehner, Jacinta C.; Bergman, Thore J.; Crockford, Catherine; Engh, Anne L.; Moscovice, Liza R.; Wittig, Roman M.; Seyfarth, Robert M.; Cheney, Dorothy L.

In: Proceedings of the Royal Society B: Biological Sciences, Vol. 276, No. 1670, 07.09.2009, p. 3099-3104.

Research output: Contribution to journalArticle

Silk, J, Beehner, JC, Bergman, TJ, Crockford, C, Engh, AL, Moscovice, LR, Wittig, RM, Seyfarth, RM & Cheney, DL 2009, 'The benefits of social capital: Close social bonds among female baboons enhance offspring survival', Proceedings of the Royal Society B: Biological Sciences, vol. 276, no. 1670, pp. 3099-3104. https://doi.org/10.1098/rspb.2009.0681
Silk, Joan ; Beehner, Jacinta C. ; Bergman, Thore J. ; Crockford, Catherine ; Engh, Anne L. ; Moscovice, Liza R. ; Wittig, Roman M. ; Seyfarth, Robert M. ; Cheney, Dorothy L. / The benefits of social capital : Close social bonds among female baboons enhance offspring survival. In: Proceedings of the Royal Society B: Biological Sciences. 2009 ; Vol. 276, No. 1670. pp. 3099-3104.
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