Co-residence between males and their mothers and grandmothers is more frequent in bonobos than chimpanzees

Grit Schubert, Linda Vigilant, Christophe Boesch, Reinhard Klenke, Kevin Langergraber, Roger Mundry, Martin Surbeck, Gottfried Hohmann

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

In long-lived social mammals such as primates, individuals can benefit from social bonds with close kin, including their mothers. In the patrilocal chimpanzee (Pan troglodytes spp.) and bonobo (Pan paniscus), sexually mature males reside and reproduce in their natal groups and can retain post-dependency bonds with their mothers, while immatures of both sexes might also have their paternal grandmothers available. However, quantitative information on the proportion of males and immatures that co-reside with both types of these close female relatives is limited for both species. Combining genetic parentage determination and group composition data from five communities of wild chimpanzees and three communities of wild bonobos, we estimated the frequency of co-residence between (1) mature males and their mothers, and (2) immature males and females and their paternal grandmothers. We found that adult males resided twice as frequently with their mothers in bonobos than in chimpanzees, and that immature bonobos were three times more likely to possess a living paternal grandmother than were immature chimpanzees. Patterns of female and male survivorship from studbook records of captive individuals of both species suggest that mature bonobo females survive longer than their chimpanzee counterparts, possibly contributing to the differences observed in mother - son and grandmother - immature co-residency levels. Taking into account reports of bonobo mothers supporting their sons' mating efforts and females sharing food with immatures other than their own offspring, our findings suggest that life history traits may facilitate maternal and grandmaternal support more in bonobos than in chimpanzees.

Original languageEnglish (US)
Article numbere83870
JournalPLoS One
Volume8
Issue number12
DOIs
StatePublished - Dec 17 2013
Externally publishedYes

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Pan paniscus
Mammals
Pan troglodytes
Mothers
immatures
Chemical analysis
Nuclear Family
Grandparents
Primates
parentage
Internship and Residency
Survival Rate
survival rate
life history
mammals
Food

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)

Cite this

Co-residence between males and their mothers and grandmothers is more frequent in bonobos than chimpanzees. / Schubert, Grit; Vigilant, Linda; Boesch, Christophe; Klenke, Reinhard; Langergraber, Kevin; Mundry, Roger; Surbeck, Martin; Hohmann, Gottfried.

In: PLoS One, Vol. 8, No. 12, e83870, 17.12.2013.

Research output: Contribution to journalArticle

Schubert, G, Vigilant, L, Boesch, C, Klenke, R, Langergraber, K, Mundry, R, Surbeck, M & Hohmann, G 2013, 'Co-residence between males and their mothers and grandmothers is more frequent in bonobos than chimpanzees', PLoS One, vol. 8, no. 12, e83870. https://doi.org/10.1371/journal.pone.0083870
Schubert, Grit ; Vigilant, Linda ; Boesch, Christophe ; Klenke, Reinhard ; Langergraber, Kevin ; Mundry, Roger ; Surbeck, Martin ; Hohmann, Gottfried. / Co-residence between males and their mothers and grandmothers is more frequent in bonobos than chimpanzees. In: PLoS One. 2013 ; Vol. 8, No. 12.
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