Intrinsic postzygotic barriers can play an important and multifaceted role in speciation, but
their contribution is often thought to be reserved to the final stages of the speciation process …

▪ Abstract To assess the frequency and importance of reinforcement in nature we must begin
by looking for its signature in the most likely places. Theoretical studies can pinpoint …

The origin of biological diversity, via the formation of new species, can be inextricably linked
to adaptation to the ecological environment. Specifically, ecological processes are central to …

Unravelling the genomic landscape of divergence between lineages is key to understanding
speciation. The naturally hybridizing collared flycatcher and pied flycatcher are important …

Beim Studium der jüngeren Kontroversen über den Darwinismus fiel mir wiederholt auf, das
sie falsche Darstellungen enthielten, so als würde es sich um irgendetwas Umfassenderes …

Charles Darwin's experiences in the Galápagos Islands in 1835 helped to guide his
thoughts toward a revolutionary theory: that species were not fixed but diversified from their …

There is growing interest in the possibility that genetic compatibility may drive mate choice,
including gamete choice, particularly from the perspective of understanding why females …

The last decade has brought renewed interest in the genetics of speciation, yielding a
number of new models and empirical results. Defining speciation as 'the origin of …

Contact zones exemplify a series of stages in speciation. In unimodal hybrid zones
intermediates predominate; in bimodal zones hybrids are rare and parental forms …

Natural selection plays a fundamental role in most theories of speciation, but empirical
evidence from the wild has been lacking. Here the post-Pleistocene radiation of threespine …