• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

The Behavioral Ecology of Chimpanzees.

Research Project

Project/Area Number 63043017
Research Category

Grant-in-Aid for Overseas Scientific Survey.

Allocation TypeSingle-year Grants
SectionField Research
Research InstitutionKyoto University

Principal Investigator

NISHIDA Toshisada  Kyoto University, 理学部, 教授 (40011647)

Co-Investigator(Kenkyū-buntansha) KAWANAKA Kenji  Okayama University of Sciences, 理学部, 教授 (70020790)
TAKAHATA Yukio  Kyoto University, 理学部, 助手 (90183061)
ITANI Jun'ichiro  Kyoto University, アフリカ・センター, 教授 (10025257)
KURODA Suehisa  Kyoto University, 理学部, 助手 (80153419)
UEHARA Shigeo  Sapporo University, 教養部, 教授 (20145965)
Project Period (FY) 1987 – 1988
Project Status Completed (Fiscal Year 1988)
Budget Amount *help
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1988: ¥1,800,000 (Direct Cost: ¥1,800,000)
KeywordsChimpanzee / Behavioral ecology / Mother-offspring relationship / Female-female relationship / Weaning conflict / Sex difference / Age difference / 薬用植物
Research Abstract

This study is based on the field work conducted mainly in Mahale, Tanzania in 1987. Sex and age differences in the behaviors of wild chimpanzees were our major concerns. (1) Female infants tended to be weaned earlier than male infants. Male infants protested against the copulations of their mothers more frequently and more strongly than did their female counterparts. Birth interval tended to be shorter when the previous offspring was female. These differences can be explained by sexual selection hypothesis. (2) Feeding behavior differed across ages: Older adult males picked fallen fruits more often than young adult or adolescent males. Full adult males rarely fed on ants. In contrast younger males often did so. The alpha male of the group showed remarkably high feeding rate. Metabolic efficiency and nutritional needs may mostly explain the age differences. (3) Old aged chimpanzees tended to be groomed far more frequently than to groom others. This shows the unique status of aged chimpanzees in the chimpanzee society.

Report

(1 results)
  • 1988 Final Research Report Summary
  • Research Products

    (22 results)

All Other

All Publications (22 results)

  • [Publications] 西田利貞: Primates. 31. (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 西田利貞: Folia Primatologica. 50. 109-123 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] マイケル・ハフマン: Primates. 30. 51-63 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] マイケル・ハフマン: (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 上原重男: (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 上原重男: (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 黒田末寿: (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 古市剛史: (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 西田利貞: "Appetite:Multidisciplinary Approach." ハーバード大学出版局, 300 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 西田利貞: "The Chimpanzees of the Mahale Mountains:Sexual and Life History Strategies." 東京大学出版会, 300 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 西田利貞: "Understanding Chimpanzees." The Chicago Academy of Sciences, 400 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 西田利貞: "東京大学総合講座「心とはなにか」" 東京大学出版会, 250 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Toshisada,Nishida: "Development of social grooming between mother and offspring in wild chimpanzees." Folia Primatologica. 50. 109-123 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Michael,Huffman: "Observations on the illness and consumption of a possibly medicinal plant Vernonia amygdalina (Del.), by a wild chimpanzee." Primates. 30. 51-63 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Toshisada,Nishida: "Suckling behavior of wild chimpanzees of the Mahale Mountains National Park." Primates. 31. (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Shigeo,Uehara: "Age differences in male feeding behavior." Not yet decided. (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Shigeo,Uehara: "Sex differences in feeding behavior." (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Michael,Huffman: "Behavioral and reproductive manifestations of old aged chimpanzees in the Mahale Mountains." (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Suehisa,Kuroda: "Birth interval and paternal care of pygmy chimpanzees in Wamba, the Central Zaire." (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Takeshi,Furuichi: "Social interactions and the life history of wild female pygmy chimpanzees (Pan paniscus) in Wamba, Zaire." (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Toshisada,Nishida: The Chimpanzees of the Mahale Mountains: Sexual and Life History Strategies.University of Tokyo Press, 300 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Toshisada,Nishida: Understanding Chimpanzees. The Chicago Academy of Sciences, 400 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary

URL: 

Published: 1988-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi