| Variation in personality and fitness in wild female baboons. | |
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MedLine Citation:
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PMID: 23027933 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Studies of personality in nonhuman primates have usually relied on assessments by humans and seldom considered the function of the resulting "trait" classifications. In contrast, we applied exploratory principal component analysis to seven behaviors among 45 wild female baboons over 7 y to determine whether the personality dimensions that emerged were associated with measures of reproductive success. We identified three relatively stable personality dimensions, each characterized by a distinct suite of behaviors that were not redundant with dominance rank or the availability of kin. Females scoring high on the "Nice" dimension were friendly to all females and often grunted to lower-ranking females to signal benign intent. "Aloof" females were aggressive, less friendly, and grunted primarily to higher-ranking females. "Loner" females were often alone, relatively unfriendly, and also grunted most often to higher-ranking females. Aloof and Loner females were rarely approached by others. Personality dimensions were correlated in different ways with three measures previously shown to be associated with fitness: stress levels and two behavioral indices reflecting the closeness of dyadic bonds formed by individuals. Females who scored high on Nice had high composite sociality indices (CSI) and stable partner preferences, whereas females who scored high on Aloof had lower CSI scores but significantly more stable partner preferences. Loner females had significantly lower CSI scores, less stable partner preferences, and significantly higher glucocorticoid levels. It remains to be determined which of the Nice or Aloof personality dimensions is more adaptive, or whether variation is maintained by contrasting effects on fitness. |
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Authors:
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Robert M Seyfarth; Joan B Silk; Dorothy L Cheney |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S. Date: 2012-10-01 |
Journal Detail:
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Title: Proceedings of the National Academy of Sciences of the United States of America Volume: 109 ISSN: 1091-6490 ISO Abbreviation: Proc. Natl. Acad. Sci. U.S.A. Publication Date: 2012 Oct |
Date Detail:
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Created Date: 2012-10-17 Completed Date: 2012-12-31 Revised Date: 2013-05-20 |
Medline Journal Info:
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Nlm Unique ID: 7505876 Medline TA: Proc Natl Acad Sci U S A Country: United States |
Other Details:
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Languages: eng Pagination: 16980-5 Citation Subset: IM |
Affiliation:
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Department of Psychology, University of Pennsylvania, Philadelphia, PA 19104, USA. seyfarth@psych.upenn.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Behavior, Animal / physiology* Botswana Feces / chemistry Female Gonadal Steroid Hormones / analysis Individuality Observation Papio / physiology* Personality / physiology* Physical Fitness / physiology* Principal Component Analysis Social Behavior* |
| Chemical | |
Reg. No./Substance:
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0/Gonadal Steroid Hormones |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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