We manipulated light, temperature, and nutrients in moist tussock tundra near Toolik Lake,
Alaska to determine how global changes in these parameters might affect community and …

Denitrification, the reduction of the nitrogen (N) oxides, nitrate (NO 3 − ) and nitrite (NO 2 − ),
to the gases nitric oxide (NO), nitrous oxide (N 2 O), and dinitrogen (N 2 ), is important to …

Ecologists have long been intrigued by the ways co-occurring species divide limiting resources.
Such resource partitioning, or niche differentiation, may promote species diversity by …

… Shaver is a senior scientist, Anne E. Giblin is an associate scientist, Knute J. Nadelhoffer
is an associate scientist, and EB Rastetter is an assistant scientist at The Ecosystems Center, …

Until recently, it was believed that biological assimilation and gaseous nitrogen (N) loss
through denitrification were the two major fates of nitrate entering or produced within most …

Human activities have greatly increased the transport of biologically available nitrogen (N)
through watersheds to potentially sensitive coastal ecosystems. Lentic water bodies (lakes …

Ammonia‐oxidizing bacteria (AOB) play an important role in nitrogen cycling in estuaries,
but little is known about AOB diversity, distribution and activity in relation to the chemical and …

A model of coupled nitrification/denitrification was developed for continental shelf sediments
to estimate the spatial distribution of denitrification throughout shelf regions in the North …

Abundance of ammonia-oxidizing Archaea (AOA) was found to be always greater than that of
ammonia-oxidizing Bacteria along an estuarine salinity gradient, and AOA abundance was …

The effects of increased nitrogen loading on denitrification and dissimilatory nitrate reduction
to ammonium (DNRA) in marsh sediments were studied in permanently submerged …