2009年4月
Prevalence of muzzle-rubbing and hand-rubbing behavior in wild chimpanzees in Mahale Mountains National Park, Tanzania
PRIMATES
- 巻
- 50
- 号
- 2
- 開始ページ
- 184
- 終了ページ
- 189
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1007/s10329-008-0126-x
- 出版者・発行元
- SPRINGER TOKYO
In 1998, four chimpanzees in the Mahale Mountains National Park, Tanzania, were observed wiping their mouths with non-detached leaves or stalks of grass, or rubbing their mouths with a tree trunk or branch, especially while eating lemons. The number of mouth-wiping/rubbing individuals increased to 18 in 1999. By 2005, 29 chimpanzees were documented wiping/rubbing their muzzles in this way. Although it is difficult to determine whether the chimpanzees acquired this behavior as a result of trial and error or social learning, the fact that chimpanzees at other sites perform this behavior with detached leaves or leafy twigs much more often than with intact items suggests the possibility that cleaning with intact plant parts at Mahale spread via social learning.
- リンク情報
- ID情報
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- DOI : 10.1007/s10329-008-0126-x
- ISSN : 0032-8332
- eISSN : 1610-7365
- Web of Science ID : WOS:000264622200008