期刊
PRIMATES
卷 51, 期 1, 页码 13-22出版社
SPRINGER TOKYO
DOI: 10.1007/s10329-009-0159-9
关键词
Behavioral variant; Constraint; Innovation; Tradition; Tool-use
类别
资金
- Ministry of Education, Culture, Sports, Science and Technology, Japan, by a JSPS (Japan Society for the Promotion of Science) [1907421, 07421]
- HOPE Project
We report the first case of dental flossing behavior by a Japanese macaque. We used cross-sectional data to assess the presence of this novel tool-use behavior at the group-level. Although this behavior was performed frequently by a central middle-ranking middle-aged female during her grooming interactions, and appeared at least four years ago, it remained idiosyncratic to its innovator, and until now has not spread to other group members. We examined the factors that may have favored this innovation, including the environmental context, the individual characteristics of the innovator, and the structural and functional aspects of the behavior. Group size, kinship, and dominance are socio-demographic factors that are likely to limit the opportunities for any group member to observe the innovator, and thus constrain the diffusion of this potential candidate as a new behavioral tradition. This is one of the rare studies to document the spontaneous appearance of tool-use behavior in primates under natural conditions. Identifying the determinants of innovations and the constraints on their diffusion within social groups of non-human primates is of special interest to understanding cultural evolution.
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