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1998 Fiscal Year Final Research Report Summary

The evolution of reproductive strategy of female primates

Research Project

Project/Area Number 08640909
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 人類学(含生理人類学)
Research InstitutionKwansei-Gakuin University

Principal Investigator

TAKAHATA Yukito  Kwansei-Gakuin University, School of Pollicy Studies, Associate Professor, 総合政策学部, 助教授 (90183061)

Project Period (FY) 1996 – 1998
KeywordsPrimates / Japanese macaque / Reproductive strategy / Reproductive success / Female choice / Female competition / Matrilineal society
Research Abstract

For the wild Japanese macaques of Yakushima and Kinkazan Island. (1) the relationship between the troop size (or the number of females). birth rate, and infant mortality was analyzed. The results roughly support Wrangham's (1980) model : (2) Their reproductive parameters were analyzed. In particular, there were no consistent correlations between female rank and their reproductive success : (3) The hypotheses concerning the relationship between male and female rank order and their mating/reproductive success were reviewed based on long-term data from provisioned and unprovisioned populations of Japanese macaques. (4) Around the coast of Yakushima Island, Japan, the distribution of wild Yakushima macaque troops was estimated, and (5) the vertical distribution of Yakushima macaques was analyzed based on the census data carried out in the natural vegetation of Yakushima Island. These results have been published in the scientific journals. Besides, the relationship between troop size and birth rate of ringtail lemurs is under analysis.

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] Y.Takahata et al.: "Does troop size of wild Japanese macaques influence birth rate and infant mortality in the absence of Predators?" Primates. 39. 245-251 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] C.Saito et al.: "Aggressive intergroup encounters in two populations of Japanese macaques(Macaca fuscata)" Primates. 39. 303-312 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Takahata et al.: "Reproduction of wild Japanese macaque females of Yakushima and Kinkazan Islands : A preliminary report." Primates. 39. 339-349 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Yoshihiro et al.: "The distribution of wild Yakushima macaque (Macaca fuscata yakui) troops around the coast of Yakushima Island, Japan" Primate Research. 14. 179-187 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 好廣眞一他: "屋久島東部ヤクスギ林帯におけるヤクシマザルの分布と糞分析による食性の調査" 霊長類研究. 14. 189-199 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Y.Takahata et al.: "Why dominants do not consistently attain high mating and reproductive success" Primates. 40. 143-158 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yukio Takahata et al.: "Does troop size of wild Japanese macaques influence birth rate and infant mortality in the absence of Predators?" Primates.39. 245-251 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Chiemi Saito et al.: "Aggressive intergroup encounters in two populations of Japanese macaques (Macaca fuscata)" Primates.39.303-312 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yukio Takahata et al.: "Reproduction of wild Japanese macaque females of Yakushima and Kinkazan Islands : A preliminary report." Primates.39. 339-349 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sinichi Yoshihiro et al.: "The distribution of wild Yakushima macaque (Macaca fuscata yakui) troops around the coast of Yakushima Island, Japan" Primate Research. 14. 179-187 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Sinichi Yoshihiro et al.: "The distribution and fecal analysis of Yakushima macaques on the conifer forest (in Japanese with English summary)" Primate Research. 14. 189-199 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yukito Takahata et al.: "Why dominants do not consistently attain high mating and reproductive success" Primates. 40. 143-158 (1999)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-12-08  

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