Aboveground resilience to species loss but belowground resistance to nitrogen addition in a montane plant community
Abstract
Aims resembled those of the previously removed dominant species. Decades of empirical work have demonstrated how dominant plant Ecosystem productivity generally increased with N addition: soil species and nitrogen fertilization can influence the structure and carbon efflux was ~50% greater when either form of N was added, function of plant communities. More recent studies have examined while inorganic N addition increased aboveground biomass pro- the interplay between these factors, but few such studies use an duction by ~60% relative to controls. The increase in production explicit trait-based framework. In this study, we use an explicit trait- was mediated by increased average height, leaf mass:area ratio and based approach to identify potential mechanisms for community- leaf dry matter content in plant communities to which we added level responses and to test ecological niche theory. inorganic N. Contrary to our predictions, there were no interactive effects of N fertilization and dominant species loss on plant com-
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