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1 results

  • 18 - Rank changes in female chimpanzees in Taï National Park

  • Edited by Christophe Boesch, Max-Planck-Institut für Evolutionäre Anthropologie, Germany, Roman Wittig, Max-Planck-Institut für Evolutionäre Anthropologie, Germany
  • Edited in association with Catherine Crockford, Max-Planck-Institut für Evolutionäre Anthropologie, Germany, Linda Vigilant, Max-Planck-Institut für Evolutionäre Anthropologie, Germany, Tobias Deschner, Max-Planck-Institut für Evolutionäre Anthropologie, Germany, Fabian Leendertz
  • Book:
    The Chimpanzees of the Taï Forest
    Published online:
    25 November 2019
    Print publication:
    28 November 2019, pp 290-300

  • Summary

    The social life of female chimpanzees (Pan troglodytes) differs between subspecies, with females in East African field sites often described as avoiding association to avoid competition, while females in Taï have been shown to be more gregarious, spending most of their time in close contact with each other, probably to avoid predation. This close association leads to increased levels of direct competition for resources, possibly increasing the benefit of having a higher dominance rank and challenging dominant group members. Female chimpanzees in Gombe have been shown to queue for rank rather than challenge others. Here, we show that female dyads in Taï do change their dominance rank at times, with at least six clear rank changes recorded in the Taï North and South communities. We discuss life events that could facilitate rank challenges. The increased flexibility in the female dominance hierarchy potentially adds a level of complexity not seen in East African chimpanzees.