Stream landscapes are highly variable in space and time and, like terrestrial landscapes, the resources they contain are patchily distributed. Organisms may disperse among patches to fulfill ...

This is a preview. Log in through your library . Abstract Insular systems tend to exhibit nonrandom patterns of species composition in which smaller species assemblages contain successive subsets of ...

Ecologists are fascinated by the prevalence of nestedness in biogeographic and community data, where it is thought to promote biodiversity in mutualistic systems. Traditionally, nestedness has been ...