The impact of learned mating traits on speciation is not yet clear: response to Kawecki.

selection under rather broad conditions, in particular if the relation between trait value and fitness involves a threshold or is convex [3,5]. That these models are not biologically unrealistic has been demonstrated in an evolutionary experiment on Drosophila, in which learning facilitated the genetic evolution of preference for an initially nonpreferred resource [8]. Therefore, the notion that learning of mating traits may facilitate speciation under divergent sexual or natural selection deserves more attention from both theoretical and empirical research. A ra c ve ne ss to fe m al es /