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 …

Ecological character displacement, mostly seen as increased differences of size in sympatry
between closely‐related or similar species, is a focal hypothesis assuming that species too …

ABSTRACT A forest species of millipede belonging to the Order Spirobolida found along the
eastern coast of southern Africa were tested for size assortative mating. The objectives …

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 …

Covering the major topics of evolutionary game theory, Game-Theoretical Models in Biology,
Second Edition presents both abstract and practical mathematical models of real biological …

There is extensive evidence that some species of ecological generalists, which use a wide
diversity of resources, are in fact heterogeneous collections of relatively specialized …

Fitness results from an optimal balance between survival, mating success and fecundity. The
interactions between these three components of fitness vary depending on the selective …

Disruptive selection occurs when extreme phenotypes have a fitness advantage over more
intermediate phenotypes. The phenomenon is particularly interesting when selection keeps …

Intraspecific competition affects the strength of individual specialization: an optimal diet theory
method Page 1 Intraspecific competition affects the strength of individual specialization: an …

Abstract Theory suggests that frequency‐dependent resource competition will
disproportionately impact the most common phenotypes in a population. The resulting …