Heterogeneous selection on a heritable temperament trait in a variable environment.

Abstract excerpt

1. Temperament traits increasingly provide a focus for investigating the evolutionary ecology of behavioural variation. Here, we examine the underlying causes and selective consequences of individual variation in the temperament trait 'exploration behaviour in a novel environment' (EB, based on an 8-min assay) in a free-ranging population of a passerine bird, the great tit Parus major. 2. First, we conducted a...

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