Biro Peter A, Stamps Judy A
Department of Environmental Science and Institute for Water and Environmental Resource Management, University of Technology Sydney, Broadway, NSW 2007, Australia.
Trends Ecol Evol. 2008 Jul;23(7):361-8. doi: 10.1016/j.tree.2008.04.003. Epub 2008 May 22.
Animal personality traits such as boldness, activity and aggressiveness have been described for many animal species. However, why some individuals are consistently bolder or more active than others, for example, is currently obscure. Given that life-history tradeoffs are common and known to promote inter-individual differences in behavior, we suggest that consistent individual differences in animal personality traits can be favored when those traits contribute to consistent individual differences in productivity (growth and/or fecundity). A survey of empirical studies indicates that boldness, activity and/or aggressiveness are positively related to food intake rates, productivity and other life-history traits in a wide range of taxa. Our conceptual framework sets the stage for a closer look at relationships between personality traits and life-history traits in animals.
许多动物物种都有诸如大胆、活跃和攻击性等动物个性特征。然而，例如为什么有些个体始终比其他个体更大胆或更活跃，目前尚不清楚。鉴于生活史权衡很常见且已知会促进个体间行为差异，我们认为，当这些个性特征有助于生产力（生长和/或繁殖力）出现持续的个体差异时，动物个性特征中持续的个体差异可能会受到青睐。一项实证研究调查表明，在广泛的分类群中，大胆、活跃和/或攻击性与食物摄入率、生产力及其他生活史特征呈正相关。我们的概念框架为更深入研究动物个性特征与生活史特征之间的关系奠定了基础。
