Support for the role of sexual selection in speciation has grown over the last 30 years. Work
in this area, however, has largely focused on a single dominant question: when and how do …

Cichlid fishes are exceptionally species-rich, speciated at explosive rates and, hence, are a
model system in speciation research. Yet, their reproductive isolating barriers have, so far …

Research on sexual selection and hybridization has focused on female mate choice and
male–male competition. While the evolutionary outcomes of interspecific female preference …

Codivergence of sexual traits and mate preferences can lead to assortative mating and
subsequently reproductive isolation. However, mate choice rarely operates without …

The establishment of hybrid taxa relies on reproductive isolation from the parental forms,
typically achieved by ecological differentiation. Here, we present an alternative mechanism …

Geographical isolation, habitat variation and trophic specialization have contributed to a
large extent to the astonishing diversity of cichlid fishes in the Great East African lakes …

During the late eleventh century AD, a episode of erosion in Chaco Canyon, New Mexico,
threatened to destroy portions of the Pueblo Bonito great house and possibly other large …

Closely related taxa frequently exist in sympatry before the evolution of robust reproductive
barriers, which can lead to substantial gene flow. Post‐divergence gene flow can promote …

Male–male competition shapes resource distributions and reproductive success among
individuals, and can drive trait evolution when phenotypes differ in competitive abilities …

Assortative mating is of interest because of its role in speciation and the maintenance of
species boundaries. However, we know little about how within-species assortment is related …