Covariation and repeatability of male mating effort and mating preferences in a promiscuous fish.

ABSTRACT: Although mate choice by males does occur in nature, our understanding of its importance in driving evolutionary change remains limited compared with that for female mate choice. Recent theoretical models have shown that the evolution of male mate choice is more likely when individual variation in male mating effort and mating preferences exist and positively covary within populations. However, relatively little is known about the nature of such variation and its maintenance within natural populations. Here, using the Trinidadian guppy (Poecilia reticulata) as a model study system, we report that mating effort and mating preferences in males, based on female body length (a strong correlate of fecundity), positively covary and are significantly variable among subjects. Individual males are t

SUBMITTER: Godin JG 

PROVIDER: S-EPMC3728943 | biostudies-literature | 2013 Jul

REPOSITORIES: biostudies-literature