Parallel evolution across replicate populations has provided evolutionary biologists with
iconic examples of adaptation. When multiple populations colonize seemingly similar …

By providing new approaches to the investigation of demographic and evolutionary
dynamics of wild populations, molecular genetics has led to fundamental changes in our …

In recent years, scientists have realized that evolution can occur on timescales much shorter
than the" long lapse of ages" emphasized by Darwin—in fact, evolutionary change is …

Divergent natural selection, adaptive divergence and gene flow may interact in a number of
ways. Recent studies have focused on the balance between selection and gene flow in …

Speciation can be viewed as a continuum, potentially divisible into several states:(1)
continuous variation within panmictic populations,(2) partially discontinuous variation with …

Evolutionary diversification is often initiated by adaptive divergence between populations
occupying ecologically distinct environments while still exchanging genes. The genetic …

Adaptive diversification is driven by selection in ecologically different environments. In
absence of geographical barriers to dispersal, this adaptive divergence (AD) may be …

Divergent selection between contrasting habitats can sometimes drive adaptive divergence
and the evolution of reproductive isolation in the face of initially high gene flow.“Progress” …

Adaptive divergence between adjoining populations reflects a balance between the
diversifying effect of divergent selection and the potentially homogenizing effect of gene …

Evolutionary biologists have long trained their sights on adaptation, focusing on the power of
natural selection to produce relative fitness advantages while often ignoring changes in …