The process of adaptive radiation—the proliferation of species from a single ancestor and
diversification into many ecologically different forms—has been of great interest to …

Speciation is often thought of as a slow process due to the waiting times for mutations that
cause incompatibilities, and permit ecological differentiation or assortative mating. Cases of …

Understanding variation in resource specialization is important for progress on issues that
include coevolution, community assembly, ecosystem processes, and the latitudinal gradient …

The origin and expansion of biological diversity is regulated by both developmental
trajectories, and limits on available ecological niches,,,,. As lineages diversify, an early and …

Several evolutionary theories predict that rates of morphological change should be
positively associated with the rate at which new species arise. For example, the theory of …

Charles Darwin's travels on HMS Beagle taught him that islands are an important source of
evidence for evolution. Because many islands are young and have relatively few species …

Evolutionary theory has gained tremendous insight from studies of adaptive radiations. High
rates of speciation, morphological divergence, and hybridization, combined with low …

Modularity is now generally recognized as a fundamental feature of organisms, one that may
have profound consequences for evolution. Modularity has recently become a major focus of …

Adaptive radiation refers to diversification from an ancestral species that produces
descendants adapted to use a great variety of distinct ecological niches. In this review, I …

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 …