Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Review alpine ecosystems ants behavioral dominance below-ground productivity biodiversity-ecosystem function biological invasions biotic interactions climate change climatic debt co-occurring nonnatives coexistence dominance-impoverishment rule expert survey global scale globalization impacts invasion impact invasive species management migration novel interactions old field policy precipitation range dynamics range expansion