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Primates

, Volume 23, Issue 2, pp 171–188 | Cite as

The social group of pygmy chimpanzees (Pan paniscus) of Wamba

  • Takayoshi Kano
Article

Abstract

This is a sociological study of the pygmy chimpanzees of Wamba which have been provisioned sufficiently since 1977. The society of the pygmy chimpanzee is basically similar to that of the common chimpanzee in the flexibility in forming parties and in the existence of a definite social unit, i.e.,unit group. It also resembles in that young females play an important role in exchanging members among unit groups, thus, as transmitters of genes from group to group, while males do in integrating groups, delimiting the social boundaries of unit groups through their inter-group antagonism. Pygmy chimpanzees differ from common chimpanzees in fission and fusion pattern of parties. The former generally forms parties larger in size and more homogeneous in composition than the latter. Any party of the former has both reproductive and nursing functions, while the parties of the latter are categorized into various types according to functions and compositions. This uniformity in pygmy chimpanzee parties seems to be well maintained by the females' high sexual ability to manifest semi-continual estrus.

Keywords

Social Group Animal Ecology Unit Group Young Female Social Unit 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Japan Monkey Centre 1982

Authors and Affiliations

  • Takayoshi Kano
    • 1
    • 2
  1. 1.Faculty of Health SciencesUniversity of the RyukyusOkinawaJapan
  2. 2.L'Institut de Recherche ScientifiqueZaïre

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