The Lasting Impact of Social Isolation: Behavioral Insights From Former Pet and Entertainer Chimpanzees in a Sanctuary in Spain

IF 2 3区 生物学 Q1 ZOOLOGY American Journal of Primatology Pub Date : 2024-12-18 DOI:10.1002/ajp.23715
Emma Chen, Giulia Pipolo, Dietmar Crailsheim, Juliano Morimoto
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Abstract

Human fascination with chimpanzees has driven extensive research on the species, but also led to exploitation by private owners and entertainment industries. These animals often suffer species-specific inadequate conditions, which can result in the development and display of abnormal behaviors even after rescue. These behaviors highlight the importance for zoos and sanctuaries to actively prevent worsening the effects of previous inadequate treatment by providing apes with social and stimulating environments that support their recovery. We conducted a 2-month behavioral survey on two groups of former pet and entertainment chimpanzees (n = 10) at the Fundación MONA sanctuary in Spain. From 116 h of instantaneous scan observations, we documented individual abnormal behaviors (e.g., self-poking, overgrooming, self-scratching). We assessed the association between the occurrence of these behaviors and individuals' origin, early history, age at rescue, and pre-rescue social conditions. We found no significant difference in the frequency of abnormal behavior between pet and entertainer chimpanzees, and between individuals born in captivity versus in the wild. Moreover, we observed that the frequency of abnormal behaviors increased with age at rescue for previously isolated individuals, but the correlation disappeared for those socially housed pre-rescue. These findings suggest that early social isolation and a late age at rescue may impose long-term changes on chimpanzees' behavior, and they emphasize the importance of accounting for age at rescue and previous housing conditions in care management and rehabilitation procedures.

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来源期刊
CiteScore
4.50
自引率
8.30%
发文量
103
审稿时长
4-8 weeks
期刊介绍: The objective of the American Journal of Primatology is to provide a forum for the exchange of ideas and findings among primatologists and to convey our increasing understanding of this order of animals to specialists and interested readers alike. Primatology is an unusual science in that its practitioners work in a wide variety of departments and institutions, live in countries throughout the world, and carry out a vast range of research procedures. Whether we are anthropologists, psychologists, biologists, or medical researchers, whether we live in Japan, Kenya, Brazil, or the United States, whether we conduct naturalistic observations in the field or experiments in the lab, we are united in our goal of better understanding primates. Our studies of nonhuman primates are of interest to scientists in many other disciplines ranging from entomology to sociology.
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