期刊
AMERICAN JOURNAL OF PRIMATOLOGY
卷 74, 期 9, 页码 788-803出版社
WILEY-BLACKWELL
DOI: 10.1002/ajp.22029
关键词
physical impairment; manual disability; congenital limb malformation; Japanese monkey
类别
资金
- Leakey Foundation
- Izaak Walton Killam Memorial Scholarship
- Animal Behavior Society
- Province of Alberta Graduate Scholarships
- University of Calgary
- University of Calgary, Department of Anthropology
- Natural Sciences and Engineering Research Council of Canada
- Canada Research Chairs Program
- NSERC Discovery Grant
- Grants-in-Aid for Scientific Research [23653225] Funding Source: KAKEN
Little is known about consequences of disability in nonhuman primates, yet individuals with disabilities can reveal much about behavioral flexibility, innovation, and the capabilities of a species. The Macaca fuscata population surrounding the Awajishima Monkey Center has experienced high rates of congenital limb malformation for at least 40 years, creating a unique opportunity to examine consequences of physical impairment in situ, in a relatively large sample of free-ranging adult monkeys. Here we present behavioral data on 11 disabled adult females and 12 nondisabled controls from 279 hours of randomly ordered 30-minute focal animal follows collected during MayAugust in 2005, 2006, and 2007. We quantified numerous statistically significant disability-related behavioral differences among females. Disabled females spent less time begging for peanuts from tourists, and employed a behavioral variant of such peanut begging; they had a lower frequency of hand use in grooming and compensated with increased direct use of the mouth or a two-arm pinch technique; and they had a higher frequency of self-scratching, and more use of feet in self-scratching. Self-scratching against substrates was almost exclusively a disability associated behavior. Two females used habitual bipedalism. These differences not withstanding, disabled females behaved similarly to controls in many respects: overall reliance on provisioned and wild foods, time spent feeding, and feeding efficiency did not differ among females, and there was no time difference in behavior performed arboreally or terrestrially. Disabled adult females were able to compensate behaviorally to perform social and life-sustaining activities, modifying existing behaviors to suit their individual physical situations and, occasionally, inventing new ways of doing things. Am. J. Primatol. 74:788-803, 2012. (c) 2012 Wiley Periodicals, Inc.
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