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Author (up) Bergvall, U.A.; Schäpers, A.; Kjellander, P.; Weiss, A. url  doi
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  Title Personality and foraging decisions in fallow deer, Dama dama Type Journal Article
  Year Publication Animal Behaviour. Abbreviated Journal Anim. Behav.  
  Volume In Press, Corrected Proof Issue Pages  
  Keywords antipredator behaviour; boldness; Dama dama; dominance; fallow deer; foraging; novelty; personality  
  Abstract Recent studies have examined the ecological and evolutionary bases for variation in animal personality. However, only a few such studies have examined how foraging parameters are influenced by different personality domains. In wild ungulates, the trade-off between the time spent on food intake and antipredator behaviour differs between individuals, but the underlying reason for this is not yet well understood. One possibility is that this trade-off reflects personality dimensions such as boldness. To relate foraging decisions to personality we measured personality and performed feeding experiments with familiar and novel food in familiar and novel situations. We measured personality traits in 15 tame fallow deer, using novel object tests (NO), behavioural observations (BO) and personality ratings (PR). Boldness dimensions were found using PR and NO, dominance dimensions were found using BO and PR, and a flexibility dimension was found using BO. Multitrait-multimethod analysis showed that similar dimensions were significantly correlated across different methods and that different dimensions were not significantly correlated, even if measured using the same method. We also found that novel food eaten in familiar situations and familiar food eaten in novel situations were strongly related to boldness but not dominance, flexibility or age. Thus the trade-off between the benefits of gaining more food and the costs of reduced vigilance or increased toxin ingestion reflect boldness. These findings highlight the nature of personality dimensions in ungulates and how boldness impacts foraging behaviour.  
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  ISSN 0003-3472 ISBN Medium  
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  Notes Approved no  
  Call Number Equine Behaviour @ team @ Serial 5278  
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Author (up) Weiss, A.; King, J.E.; Figueredo, A.J. openurl 
  Title The heritability of personality factors in chimpanzees (Pan troglodytes) Type Journal Article
  Year 2000 Publication Behavior Genetics Abbreviated Journal Behav Genet  
  Volume 30 Issue 3 Pages 213-221  
  Keywords Animals; Female; Humans; Male; Models, Genetic; Pan troglodytes/*genetics; Personality/*genetics; Social Environment  
  Abstract Human personality and behavior genetic studies have resulted in a growing consensus that five heritable factors account for most variance in human personality. Prior research showed that chimpanzee personality is composed of a dominance-related factor and five human-like factors--Surgency, Dependability, Emotional Stability, Agreeableness, and Openness. Genetic, shared zoo, and nonshared environmental variance components of the six factors were estimated by regressing squared phenotypic differences of all possible pairs of chimpanzees onto 1 – Rij, where Rij equals the degree of relationship and a variable indicating whether the pair was housed in the same zoo. Dominance showed significant narrow-sense heritability. Shared zoo effects accounted for only a negligible proportion of the variance for all factors.  
  Address Department of Psychology, University of Arizona, Tucson 85721, USA. aweiss@u.arizona.edu  
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  Language English Summary Language Original Title  
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  Series Volume Series Issue Edition  
  ISSN 0001-8244 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:11105395 Approved no  
  Call Number Equine Behaviour @ team @ Serial 4143  
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