Species range limits involve many aspects of evolution and ecology, from species distribution
and abundance to the evolution of niches. Theory suggests myriad processes by which …

Ecology Letters (2011) 14: 677–689 Abstract Although some organisms have moved to
higher elevations and latitudes in response to recent climate change, there is little consensus …

How biological diversity is generated and maintained is a fundamental question in ecology.
Ecologists have delineated many mechanisms that can, in principle, favor species …

A long-standing theory, originating with Darwin, suggests that abiotic forces set species range
limits at high latitude, high elevation, and other abiotically ‘stressful' areas, while species …

The ‘centre–periphery hypothesis’ ( CPH ) is a long‐standing postulate in ecology that states
that genetic variation and demographic performance of a species decrease from the centre …

Global change has made it important to understand the factors that shape species’ distributions.
Central to this area of research is the question of whether species’ range limits primarily …

Recent theory and empirical evidence have provided new insights regarding how evolutionary
forces interact to shape adaptation at stable and transient range margins. Predictions …

Impacts of long‐term climate shifts on the dynamics of intact communities within species
ranges are not well understood. Here, we show that warming and drying of the Southwestern …

A fundamental goal of ecology is to predict how strongly one species affects the abundance
of another. However, our ability to do so is hindered by the fact that interaction outcomes are …

The geographic ranges of closely related species can vary dramatically, yet we do not fully
grasp the mechanisms underlying such variation. The niche breadth hypothesis posits that …