Background Darwin and the architects of the Modern Synthesis found sympatric speciation
difficult to explain and suggested it is unlikely to occur. Increasingly, evidence over the past …

Many factors could influence progress towards sympatric speciation. Some of the potentially
important ones include competition, mate choice and the degree to which alternative …

The process of speciation generates biodiversity. According to the null model of speciation,
barriers between populations arise in allopatry, where, prior to biology, geography imposes …

Can speciation occur in a single population when different types of resources are available,
in the absence of any geographical isolation, or any spatial or temporal variation in …

Sympatric speciation is a composite phenomenon requiring both ecological differentiation
and the evolution of a mating structure that induces reproductive isolation. Ecological and …

I use explicit genetic models to investigate the importance of natural and sexual selection
during sympatric speciation and to sort out how genetic architecture influences these …

The plausibility of sympatric speciation has long been debated among evolutionary
ecologists. The process necessarily involves two key elements: the stable coexistence of at …

We propose a robust mechanism for sympatric speciation based on the assumption that
sexual selection operates in two directions: selection of males by females and of females by …

After Ernst Mayr published his seminal book in 1963 (Mayr, 1963), the issue of speciation
appeared to be settled: according to the established dogma, biological diversification …

The existing theory of sympatric speciation assumes that a local population splits into two
species under one-dimensional disruptive selection, which favors both of the opposite …