Community ecology has experienced a major transition, from a focus on patterns in
taxonomic composition, to revealing the processes underlying community assembly through …

Excess nitrogen is a pollutant and global problem that harms ecosystems and can severely
affect human health. Pollutant nitrogen is becoming more widespread and intensifying in the …

Currently, forest ecosystems are often located in remote areas, far from direct sources of air
pollution. Nonetheless, they may be affected by different types of atmospheric deposition …

Thin, hair‐like lichens (Alectoria, Bryoria, Usnea) form conspicuous epiphyte communities
across the boreal biome. These poikilohydric organisms provide important ecosystem …

Atmospheric nitrogen (N) and sulfur (S) deposition can significantly affect forest biodiversity
and production by altering the growth and survival of trees. Three decades of air quality …

Critical loads are thresholds of atmospheric deposition below which harmful ecological
effects do not occur. Because lichens are sensitive to atmospheric deposition, lichen-based …

Human activities have increased atmospheric emissions and deposition of oxidized and
reduced forms of nitrogen, but emission control programs have largely focused on oxidized …

Anthropogenic nitrogen (N) and sulfur (S) deposition can negatively affect ecosystem
functions and lichen biomonitors can be a cost-effective way to monitor air pollution …

The DeLong Mountain Transportation System (DMTS) haul road links the Red Dog Mine—
one of the world's largest zinc mines—with a ship** port on the Chukchi Sea in northwest …

Critical loads (CLs) are frequently used to quantify terrestrial ecosystem impacts from
nitrogen (N) deposition using ecological responses such as the growth and mortality of tree …