Sympatric speciation, the evolution of reproductive isolation without geographic barriers,
remains highly contentious. As a result of new empirical examples and theory, it is now …

Speciation—the origin of new species—is the source of the diversity of life. A theory of
speciation is essential to link poorly understood macro-evolutionary processes, such as the …

Adaptive dynamics is a mathematical framework for studying evolution. It extends
evolutionary game theory to account for more realistic ecological dynamics and it can …

Aims Patterns of species richness, such as the remarkable biodiversity of tropical regions,
have been documented and studied for centuries. However, their underlying evolutionary …

Quaternary climate fluctuations can affect speciation in regional biodiversity assembly in two
non-mutually exclusive ways: a glacial species pump, where isolation in glacial refugia …

We study the properties of general Lotka-Volterra models with competitive interactions. The
intensity of the competition depends on the position of species in an abstract niche space …

Empirical data indicate that sexual preferences are critical for maintaining species
boundaries,,,, yet theoretical work has suggested that, on their own, they can have only a …

Both evolution and ecology have long been concerned with the impact of variable
environmental conditions on observed levels of genetic diversity within and between …

Niche expansion is attained by adaptations in two generalized phenotypical traits—niche
position and niche width. This gives room for a wide range of conceptual ways of niche …

Theoretical studies from diverse areas of population biology have shown that demographic
stochasticity can substantially impact evolutionary dynamics in finite populations, including …