Hair Pulling and Eating in Captive Rhesus Monkey Troops
Hair pulling and eating has not yet received attention in the nonhuman primate literature. Hair pulling and eating was recorded 388 times in two heterogeneous troops of healthy rhesus monkeys that were kept according to modern management practices. The behavior in question consists of the following...
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crbrillap:10.1159/000156272 2023-12-10T09:50:43+01:00 Hair Pulling and Eating in Captive Rhesus Monkey Troops Reinhardt, Viktor Reinhardt, Annie Houser, Dan 1986 http://dx.doi.org/10.1159/000156272 https://brill.com/view/journals/ijfp/47/2-3/article-p158_7.xml https://brill.com/downloadpdf/journals/ijfp/47/2-3/article-p158_7.xml unknown Brill Folia Primatologica volume 47, issue 2-3, page 158-164 ISSN 0015-5713 1421-9980 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1986 crbrillap https://doi.org/10.1159/000156272 2023-11-16T18:15:54Z Hair pulling and eating has not yet received attention in the nonhuman primate literature. Hair pulling and eating was recorded 388 times in two heterogeneous troops of healthy rhesus monkeys that were kept according to modern management practices. The behavior in question consists of the following sequence: (1) pulling with the fingers (1/3 of cases) or with the teeth (2/3 of cases) tufts of hair from one’s own or from a partner’s coat; (2) chewing the hair and finally swallowing it; the undigested material is excreted in the feces. Hair pulling was almost exclusively (378/388) partner-directed. It was observed 364 times between animals whose dominance relationships were known; it was performed in 96% (349/364) of observations by a dominant but only in 4% (15/364) of observations by a subordinate monkey. The recipient of hair pulling showed typical fear and/or avoidance reactions. In both troops young animals (2–8 years of age) engaged in hair pulling and eating significantly more often than old animals (10–26 years of age). There was no evidence that nutritional, toxicological or climatic factors were responsible for the manifestation of this behavior. It was concluded that, similar to trichotillomania in man, wool pulling and eating in sheep and muskox, and feather picking in poultry, hair pulling and eating is an aggressive behavioral disorder in rhesus monkeys reflecting adjustment problems to a stressful environment. Article in Journal/Newspaper muskox Brill (via Crossref) Folia Primatologica 47 2-3 158 164 |
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Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
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Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Reinhardt, Viktor Reinhardt, Annie Houser, Dan Hair Pulling and Eating in Captive Rhesus Monkey Troops |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Hair pulling and eating has not yet received attention in the nonhuman primate literature. Hair pulling and eating was recorded 388 times in two heterogeneous troops of healthy rhesus monkeys that were kept according to modern management practices. The behavior in question consists of the following sequence: (1) pulling with the fingers (1/3 of cases) or with the teeth (2/3 of cases) tufts of hair from one’s own or from a partner’s coat; (2) chewing the hair and finally swallowing it; the undigested material is excreted in the feces. Hair pulling was almost exclusively (378/388) partner-directed. It was observed 364 times between animals whose dominance relationships were known; it was performed in 96% (349/364) of observations by a dominant but only in 4% (15/364) of observations by a subordinate monkey. The recipient of hair pulling showed typical fear and/or avoidance reactions. In both troops young animals (2–8 years of age) engaged in hair pulling and eating significantly more often than old animals (10–26 years of age). There was no evidence that nutritional, toxicological or climatic factors were responsible for the manifestation of this behavior. It was concluded that, similar to trichotillomania in man, wool pulling and eating in sheep and muskox, and feather picking in poultry, hair pulling and eating is an aggressive behavioral disorder in rhesus monkeys reflecting adjustment problems to a stressful environment. |
format |
Article in Journal/Newspaper |
author |
Reinhardt, Viktor Reinhardt, Annie Houser, Dan |
author_facet |
Reinhardt, Viktor Reinhardt, Annie Houser, Dan |
author_sort |
Reinhardt, Viktor |
title |
Hair Pulling and Eating in Captive Rhesus Monkey Troops |
title_short |
Hair Pulling and Eating in Captive Rhesus Monkey Troops |
title_full |
Hair Pulling and Eating in Captive Rhesus Monkey Troops |
title_fullStr |
Hair Pulling and Eating in Captive Rhesus Monkey Troops |
title_full_unstemmed |
Hair Pulling and Eating in Captive Rhesus Monkey Troops |
title_sort |
hair pulling and eating in captive rhesus monkey troops |
publisher |
Brill |
publishDate |
1986 |
url |
http://dx.doi.org/10.1159/000156272 https://brill.com/view/journals/ijfp/47/2-3/article-p158_7.xml https://brill.com/downloadpdf/journals/ijfp/47/2-3/article-p158_7.xml |
genre |
muskox |
genre_facet |
muskox |
op_source |
Folia Primatologica volume 47, issue 2-3, page 158-164 ISSN 0015-5713 1421-9980 |
op_doi |
https://doi.org/10.1159/000156272 |
container_title |
Folia Primatologica |
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47 |
container_issue |
2-3 |
container_start_page |
158 |
op_container_end_page |
164 |
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1784895951447523328 |