Nitrogen is a requisite and highly demanded element for living organisms on Earth.
However, increasing human activities have greatly altered the global nitrogen cycle …

Natural abundances of the rare stable isotope of nitrogen, 15 N, are now being used widely
in research on N cycling in organisms and ecosystems. 15 N natural abundances are used …

Stream Ecology: Structure and Function of Running Waters is designed to serve as a
textbook for advanced undergraduate and graduate students, and as a reference source for …

The accurate measurement of ammonium concentrations is fundamental to understanding
nitrogen biogeochemistry in aquatic ecosystems. Unfortunately, the commonly used …

A comparative 15N-tracer study of nitrogen dynamics in headwater streams from biomes
throughout North America demonstrates that streams exert control over nutrient exports to …

1. We studied whole‐ecosystem metabolism in eight streams from several biomes in North
America to identify controls on the rate of stream metabolism over a large geographic range …

A regression model (RivR-N) was developed that predicts the proportion of N removed from
streams and reservoirs as an inverse function of the water displacement time of the water …

Hyporheic exchange flows were simulated using MODFLOW and MODPATH to estimate
relative effects of channel morphologic features on the extent of the hyporheic zone, on …

Ecological stoichiometry deals with the mass balance of multiple key elements [eg carbon
(C), nitrogen (N), phosphorus (P)] in ecological systems. This conceptual framework, largely …

Headwater streams are key sites of nutrient and organic matter processing and retention, but
little is known about temporal variability in gross primary production (GPP) and ecosystem …