Neotropical freshwater fishes (NFFs) constitute the most diverse continental vertebrate fauna
on Earth, with more than 6,200 named species compressed into an aquatic footprint< 0.5 …

Natural selection commonly drives the origin of species, as Darwin initially claimed.
Mechanisms of speciation by selection fall into two broad categories: ecological and …

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 …

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 …

Speciation with gene flow is greatly facilitated when traits subject to divergent selection also
contribute to non-random mating. Such traits have been called 'magic traits', which could be …

I discuss future challenges and opportunities in genetic approaches to biodiversity
conservation. Resolving taxonomy uncertainties and identifying diverged evolutionary units …

Approximately 20 years ago, Avise and colleagues proposed the integration of
phylogenetics and population genetics for investigating the connection between micro-and …

Geometric morphometrics—a set of methods for the statistical analysis of shape once
saluted as a revolutionary advancement in the analysis of morphology—is now mature and …

Radiations of ecologically and morphologically differentiated sympatric species can exhibit
the pattern of a burst of diversification, which might be produced by ecological divergence …

Divergent natural selection has been shown to promote speciation in many taxa. However,
although divergent selection often initiates the process of speciation, it often fails to complete …