Personality dimensions and their behavioral correlates in wild virunga mountain gorillas (Gorilla beringei beringei)
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Authors
Eckardt, WinnieSteklis, Dieter H.
Steklis, Netzin G.
Fletcher, Alison W.
Stoinski, Tara S.
Weiss, Alexander
Affiliation
University of Chester & The Dian Fossey Gorilla Fund International ; University of Arizona ; University of Arizona ; University of Chester ; Zoo Atlanta & The Dian Fossey Gorilla Fund International ; University of Edinburgh & Scottish Primate Research Group.Publication Date
2014-12-22
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Studies of animal personality improve our understanding of individual variation in measures of life-history and fitness, such as health and reproductive success. Using a 54 trait personality questionnaire developed for studying great apes and other nonhuman primates, we obtained ratings on 116 wild mountain gorillas (Gorilla beringei beringei) monitored by the Dian Fossey Gorilla Fund’s Karisoke Research Center in Rwanda. There were eight raters who each had more than 1.5 years of working experience with the subjects. Principal component analyses identified four personality dimensions with high inter-rater reliabilities --- Dominance, Openness, Sociability, and Proto-Agreeableness --- that reflected personality features unique to gorillas and personality features shared with other hominoids. We next examined the associations of these dimensions with independently collected behavioral measures derived from long-term records. Predicted correlations were found between the personality dimensions and corresponding behaviors. For example, Dominance, Openness, Sociability, and Proto-Agreeableness were related to gorilla dominance strength, time spent playing, rates of approaches and rates of interventions in intra-group conflicts, respectively. These findings enrich the comparative-evolutionary study of personality and provide insights into how species differences in personality are related to ecology, social systems, and life history.Citation
Journal of Comparative Psychology, 2015, 129(1), pp. 26-41Publisher
Americal Psychological AssociationDOI
10.1037/a0038370Additional Links
http://www.apa.org/pubs/journals/com/index.aspxType
ArticleLanguage
en_USDescription
This article may not exactly replicate the final version published in the APA journal. It is not the copy of record.ISSN
0735-7036EISSN
1939-2087ae974a485f413a2113503eed53cd6c53
10.1037/a0038370
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