Sexual selection plays several intricate and complex roles in the related processes of local
adaptation and speciation. In some cases sexual selection can promote these processes …

Sexual conflict is a conflict between the evolutionary interests of individuals of the two sexes.
The sexes can have different trait optima but this need not imply conflict if their optima can …

We review the current status of three well–established models (direct benefits, indirect
benefits and sensory drive) and one newcomer (antagonistic chase–away) of the evolution …

Two very basic ideas in sexual selection are heavily influenced by numbers of potential
mates: the evolution of anisogamy, leading to sex role differentiation, and the frequency …

Character displacement is the process by which traits evolve in response to selection to
lessen resource competition or reproductive interactions between species. Although …

Explaining the evolution of sex is challenging for biologists. A 'twofold cost'compared with
asexual reproduction is often quoted. If a cost of this magnitude exists, the benefits of sex …

Sexual selection has manifold ecological and evolutionary consequences, making its net
effect on population fitness difficult to predict. A powerful empirical test is to experimentally …

The independent evolution of the sexes may often be constrained if male and female
homologous traits share a similar genetic architecture. Thus, cross-sex genetic covariance is …

The spectacular diversity in sexually selected traits in the animal kingdom has inspired the
hypothesis that sexual selection can promote species divergence. In recent years, several …

Density-dependent selection, which promotes contrasting patterns of trait means at different
population densities, has a long history in population genetics and ecology. The unifying …