DECREASE IN THE BODY MASS OF WILD RINGTAILED LEMURS AT BERENTY RESERVE IN MADAGASCAR WITH ENVIRONMENTAL CHANGES

• ICHINO Shin'ichiro

  Primate Research Institute, Kyoto University

• CHATANI Kaoru

  Nagoya University of Arts

• KAWAMOTO Yoshi

  Primate Research Institute, Kyoto University

• SATO Hiroki

  Graduate School of Asian and African Area Studies, Kyoto University

• SCHNÖLL Anna

  German Primate Center

• SOMA Takayo

  Graduate School of Asian and African Area Studies, Kyoto University

• KOYAMA Naoki

  Professor Emeritus, Kyoto University

• AIMI Mitsuru

  Primate Research Institute, Kyoto University

• TAKAHATA Yukio

  School of Policy Studies, Kwansei Gakuin University

抄録

We measured the body mass of 76 (in 2006) and 73 (in 2011) wild ringtailed lemurs (Lemur catta) inhabiting the Berenty Reserve in Madagascar. Compared with the data recorded in 1999 (Koyama et al., 2008), the mean body mass of the adults had decreased significantly. In 2006, the adult females had decreased from 2.27 kg to 1.98 kg, and the adult males from 2.22 kg to 2.03 kg. In 2011, the body mass of both adult males and females was still 1.99 kg. In 2011, the group variations in body mass may have expanded. No sexual difference was observed in body mass, similar to the data from 1999. Despite their reduced body mass, adult females maintained a high birth rate (73.0% annually), but infant mortality was very high (86.2%) from 2006 to 2011. We discuss these phenomena with reference to environmental changes in this reserve.

収録刊行物

• African Study Monographs

  African Study Monographs 34 (2), 109-118, 2013-08

  京都大学アフリカ地域研究資料センター

キーワード

• Body mass
• Lemur catta
• Primates
• Environmental changes
• Food availability
• Inter- and within-species competition

詳細情報

• CRID: 1390009224834940800
• NII論文ID: 110009613680
• NII書誌ID: AA10626444
• DOI: 10.14989/179134
• HANDLE: 2433/179134
• ISSN: 02851601
• 本文言語コード: en
• データソース種別:
  • JaLC
  • IRDB
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用可