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 …

Darwin may have been the first to describe adaptive radiation when, contemplating the
variety of finches that now bear his name, he remarked:“Seeing this gradation and diversity …

Adaptive radiation is a response to natural selection and ecological opportunity involving
diversification of species and associated adaptations. Although evolutionary biologists have …

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 …

Ecological opportunity–through entry into a new environment, the origin of a key innovation
or extinction of antagonists–is widely thought to link ecological population dynamics to …

Whether interspecific hybridization is important as a mechanism that generates biological
diversity is a matter of controversy. Whereas some authors focus on the potential of …

Growing evidence for lineage diversification that occurs without strong ecological
divergence (ie, nonadaptive radiation) challenges assumptions about the buildup and …

The idea of 'key innovations' has long been influential in theoretical and empirical
approaches to understanding adaptive diversification. Despite originally revolving around …

Adaptive radiation plays a fundamental role in our understanding of the evolutionary
process. However, the concept has provoked strong and differing opinions concerning its …

The tenet that ecological opportunity drives adaptive diversification has been central to
theories of speciation since Darwin, yet no widely accepted definition or mechanistic …