Response of more than 1000 herbaceous species across 20 vegetation alliances to atmospheric deposition of nitrogen in the United States
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This presentation will be given to the USDA Federal Atmospheric Resource Managers (FARM) monthly seminar series, and describes the initial results from a TITAN analysis of ~1000 herbaceous species vulnerability to N deposition across the U.S. We found species-level thresholds for 585 species (1.3−16.8 kg N ha−1 yr−1) that were decreasing in at least one habitat, and thresholds for 523 species (1.7−18.0 kg N ha−1 yr−1) that were increasing in at least one habitat.