Fish invasions in the world's river systems: when natural processes are blurred by human activities.

ABSTRACT: Because species invasions are a principal driver of the human-induced biodiversity crisis, the identification of the major determinants of global invasions is a prerequisite for adopting sound conservation policies. Three major hypotheses, which are not necessarily mutually exclusive, have been proposed to explain the establishment of non-native species: the "human activity" hypothesis, which argues that human activities facilitate the establishment of non-native species by disturbing natural landscapes and by increasing propagule pressure; the "biotic resistance" hypothesis, predicting that species-rich communities will readily impede the establishment of non-native species; and the "biotic acceptance" hypothesis, predicting that environmentally suitable habitats for native species are al

SUBMITTER: Leprieur F 

PROVIDER: S-EPMC2225436 | biostudies-literature | 2008 Feb

REPOSITORIES: biostudies-literature