How ecological niche breadth evolves is central to adaptation and speciation and has been
a topic of perennial interest. Niche breadth evolution research has occurred within …

Ecology Letters (2011) 14: 948–958 Abstract Many generalist populations are composed of
specialised individuals, whose niches are small subsets of the population niche. This …

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 …

Resource competition is thought to play a major role in driving evolutionary diversification.
For instance, in ecological character displacement, coexisting species evolve to use different …

A species's niche width reflects a balance between the diversifying effects of intraspecific
competition and the constraining effects of interspecific competition. This balance shifts …

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 …

Dietary diversity often varies inversely with prey resource abundance. This pattern, although
typically measured at the population level, is usually assumed to also characterize the …

Speciation can be viewed as a continuum, potentially divisible into several states:(1)
continuous variation within panmictic populations,(2) partially discontinuous variation with …

Trophic relationships are a central theme in ecology and play a crucial role in the survival of
organisms, because the availability of food resources varies over time and space. Until …

Ecologists are increasingly using stable isotope analysis to inform questions about variation
in resource and habitat use from the individual to community level. In this study we …