biodiversity-ecosystem function Journal Article 2 Congress 1 Research Support, Non-U.S. Gov't 1 Research Support, U.S. Gov't, Non-P.H.S. 1 Review 1 below-ground productivity 1 mehr ... co-occurring nonnatives 1 common species 1 demography 1 dominance 1 foundation species 1 functional traits 1 invasion impact 1 old field 1 selection effect 1 species abundance 1 species coexistence 1 species identity 1 trait-environment interactions 1 weniger ...