Changes in habitat associations during range expansion: disentangling the effects of climate and residence time.

ABSTRACT: The distributions of many species are not at equilibrium with their environment. This includes spreading non-native species and species undergoing range shifts in response to climate change. The habitat associations of these species may change during range expansion as less favourable climatic conditions at expanding range margins constrain species to use only the most favourable habitats, violating the species distribution model assumption of stationarity. Alternatively, changes in habitat associations could result from density-dependent habitat selection; at range margins, population densities are initially low so species can exhibit density-independent selection of the most favourable habitats, while in the range core, where population densities are higher, species spread into less favo

SUBMITTER: Sullivan MJP 

PROVIDER: S-EPMC6560651 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature