Response diversity, nonnative species, and disassembly rules buffer freshwater ecosystem processes from anthropogenic change.

摘要: Integrating knowledge of environmental degradation, biodiversity change, and ecosystem processes across large spatial scales remains a key challenge to illuminating the resilience Earth's systems. There is now growing realization that manner in which communities will respond anthropogenic impacts ultimately control consequences. Here we examine response freshwater fishes their nutrient excretion - process can aquatic productivity human land development contiguous United States. By linking continental-scale dataset 533 fish species from 8,100 stream locations with functional traits, excretion, remote sensing, present four findings. First, provide first geographic footprint by States reveal distinct local- heterogeneity community rates. Second, exhibited substantial diversity sensitivity development; for native species, more tolerant were also contributing greater function terms excretion. Third, modeling increased land-use change resultant shifts composition, estimated decrease majority (63%) ecoregions. Fourth, loss would be 28% if was random or 84% there no non-native species. Thus, are sensitive degradation but biotic multiple pathways resistance this varies space. This article protected copyright. All rights reserved.