Variation in summer nitrogen and phosphorus uptake among Siberian headwater streams John D. Schade, Erin C. Seybold, Travis Drake, Seth Spawn, William V. Sobczak, Karen E. Frey, Robert M. Holmes & Nikita Zimov 1 Environmental Studies Department, St. Olaf College, 1520 St. Olaf Avenue, Northfield, MN 55057, USA 2 Nicholas School of the Environment, Duke University, PO Box 90328, Durham, NC 27708...
