Bushmeat trade consequences predict higher anxiety, restraint, and dominance in chimpanzees

Male Behavior, Animal Pan troglodytes Anxiety Personality Assessment Inhibition, Psychological 03 medical and health sciences 0302 clinical medicine Social Dominance Animals Female Stress, Psychological Personality
DOI: 10.1002/dev.21853 Publication Date: 2019-04-08T00:45:22Z
ABSTRACT
AbstractMore data are needed for a better understanding of the long‐term influence of wider and combined stressful events in chimpanzee personality development. We evaluated the effects of bushmeat trade outcomes on the personality development in 84 African sanctuary chimpanzees. The chimpanzees presented different backgrounds regarding maternal care, social exposure, and abuse. We evaluated personality traits in chimpanzees using the Cattell 16PF personality questionnaire, the first application of this questionnaire in this species. We found that chimpanzees were rated as higher in anxiety after long social deprivation during infancy and juvenility, and if high human exposure was experienced. Mother‐reared chimpanzees were rated as lower in restraint than hand‐reared chimpanzees. Finally, mother‐reared chimpanzees were rated as less dominant than hand‐reared chimpanzees and rated higher when they had experienced severe mistreatment. Results suggest a wide range of possible stressful events could be potentially shaping rescued chimpanzees’ personality and demonstrating the detrimental outcomes and consequences of the bushmeat and pet trade.
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