The origin, distribution, and function of biological diversity are fundamental themes of
ecology and evolutionary biology. Research on birds has played a major role in the history …

Twenty years ago, a seminal paper summarized the role of sexual selection in speciation as
the coordinated evolution of (male) courtship signals and (female) preferences leading to …

Partial prezygotic isolation is often viewed as more important than partial postzygotic
isolation (low fitness of hybrids) early in the process of speciation. I simulate secondary …

Sexual selection is proposed to be a powerful driver of phenotypic evolution in animal
systems. At macroevolutionary scales, sexual selection can theoretically drive both the rate …

Insights into animal behaviour play an increasingly central role in species-focused
conservation practice. However, progress towards incorporating behaviour into regional or …

A central role for sexual isolation in the formation of new species and establishment of
species boundaries has been noticed since Darwin and is frequently emphasized in the …

Sexual selection is thought to shape phylogenetic diversity by affecting speciation or
extinction rates. However, the net effect of sexual selection on diversification is hard to …

Hybrid zones provide insights into the evolution of reproductive isolation. Sexual selection
can contribute to the evolution of reproductive barriers, but it remains poorly understood how …

Signal divergence is an important process underpinning the diversification of lineages.
Research has shown that signal divergence is greatest in species pairs that possess high …

Examining what happens when two closely related species come into secondary contact
provides insight into the later stages of the speciation process. The Zosteropidae family of …