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Feedback loop between kinship and dominance: the macaque model.

B Thierry1

  • 1Laboratoire de Psychophysiologie, CNRS (URA 1295), Strasbourg, France.

Journal of Theoretical Biology
|August 23, 1990
PubMed
Summary
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Macaque social structures show that hierarchy strength and nepotism are linked. This framework explains how kinship and alliances shape despotic versus egalitarian primate societies.

Area of Science:

  • Primate social behavior
  • Evolutionary anthropology
  • Behavioral ecology

Background:

  • Macaque social systems exhibit covariation between hierarchy strength and nepotism.
  • Existing models do not fully explain the interplay between dominance and kinship.

Purpose of the Study:

  • To develop a framework explaining the relationship between dominance and kinship in macaque social systems.
  • To account for variations in social structures, from despotic to egalitarian.

Main Methods:

  • Developed a theoretical framework linking non-kin alliances to kin-based alliances using allometric relationships.
  • Analyzed how kinship structures (closed vs. open lineages) influence social power dynamics.

Main Results:

Related Experiment Videos

  • The framework explains despotic systems (kin-biased, high social power) and egalitarian systems (less kin-biased, more individual freedom).
  • Variations in the balance of individual and social power across species explain differences in rank inheritance and sex dominance.

    • Conclusions:

    • Epigenetic processes may play a role in shaping primate social systems.
    • The framework provides testable hypotheses for understanding primate social complexity and evolution.