There is growing interest in quantifying genetic population structure across the geographical
ranges of species to understand why species might exhibit stable range limits and to assess …

Abstract 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 …

Species are the unit of analysis in many global change and conservation biology studies;
however, species are not uniform entities but are composed of different, sometimes locally …

Modern climate change is producing poleward range shifts of numerous taxa, communities
and ecosystems worldwide. The response of species to changing environments is likely to …

The ability to adapt to marginal habitats, in which survival and reproduction are initially poor,
plays a crucial role in the evolution of ecological niches and species ranges. Adaptation to …

The assumption that species are most abundant in the center of their range and decline in
abundance toward the range edges has a long history in the ecological literature. This …

The development of a more synthetic approach to understanding spatial patterns in
biogeography, particularly of the way in which these patterns interact, constitutes a major …

We use individual‐based stochastic simulations and analytical deterministic predictions to
investigate the interaction between drift, natural selection and gene flow on the patterns of …

The nature of species at the extremes of their ranges im**es fundamentally on diverse
biological issues, including species' range dynamics, population variability, speciation and …

Polymorphic species, in which multiple variants coexist within a population, are often used
as model systems in evolutionary biology. Recent research has been dominated by the …