期刊论文详细信息
Ecology and Evolution
Evolutionary quantitative genetics of behavioral responses to handling in a wild passerine
Barbara Class1  Edward Kluen2 
[1] Department of Biology, University of Turku, Turku, Finland;Museum of Natural History, University of Helsinki, Helsinki, Finland
关键词: Biparental care;    Cross‐fostering;    Cyanistes caeruleus;    fitness;    heritability;    personality;   
DOI  :  10.1002/ece3.945
来源: Wiley
PDF
【 摘 要 】

Abstract

Behavioral differences between individuals that are consistent over time characterize animal personality. The existence of such consistency contrasts to the expectation based on classical behavioral theory that facultative behavior maximizes individual fitness. Here, we study two personality traits (aggression and breath rate during handling) in a wild population of blue tits during 2007–2012. Handling aggression and breath rate were moderately heritable (h2 = 0.35 and 0.20, respectively) and not genetically correlated (rA = 0.06) in adult blue tits, which permits them to evolve independently. Reciprocal cross-fostering (2007–2010) showed that offspring reared by more aggressive males have a higher probability to recruit. In addition, offspring reared by pairs mated assortatively for handling aggression had a higher recruitment probability, which is the first evidence that both parents' personalities influence their reproductive success in the wild in a manner independent of their genetic effects. Handling aggression was not subjected to survival selection in either sex, but slow-breathing females had a higher annual probability of survival as revealed by capture–mark–recapture analysis. We find no evidence for temporal fluctuations in selection, and thus conclude that directional selection (via different fitness components) acts on these two heritable personality traits. Our findings show that blue tit personality has predictable fitness consequences, but that facultative adjustment of an individual's personality to match the fitness maximum is likely constrained by the genetic architecture of personality. In the face of directional selection, the presence of heritable variation in personality suggests the existence of a trade-off that we have not identified yet.

【 授权许可】

CC BY   
© 2014 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd.

Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

【 预 览 】
附件列表
Files Size Format View
RO202107150011010ZK.pdf 389KB PDF download
  文献评价指标  
  下载次数:2次 浏览次数:1次