OCCRI Researchers

Title: Research Ecologist
Name: Steven S. Perakis
Institution: U.S. Geological Survey, Forest and Rangeland Ecosystem Science Center
Department: Courtesy Professor, OSU Forest Ecosystems & Society

2000 Ph.D. Cornell University, Ecology and Evolutionary Biology
1994 M.S. University of Washington, Environmental Science
1990 B.S. University of Pennsylvania, Systems Science

Research Theme: Terrestrial Ecosystem Ecology and Biogeochemistry, Nutrient Cycling, Watershed Studies, Riparian Biogeochemistry, Stable Isotopes

Research Fields:

Ecology and Ecosystem Management
Forestry and Forest Management
Impacts Ecosystems and Populations
Impacts Physical
Physical Ecology

Professional Activities:

Associate Editor, Biogeochemistry, 2004-present

US Geological Survey, Interdisciplinary Carbon Committee, 2008 – present

Oregon / Washington BLM Climate Change Strategy Science Task Team Member. 2009 – present

Selected Publications:

Perakis, S.S. and L.O. Hedin. 2007. State factor relationships of dissolved organic carbon and nitrogen losses from unpolluted temperate forest watersheds. Journal of Geophysical Research – Biogeosciences, VOL. 112, doi:10.1029/2006JG000276

Perakis, S.S. and C.H. Kellogg. 2007. Imprint of oaks on nitrogen availability and δ15N in California grassland-savanna: a case of enhanced N inputs? Plant Ecology 191:209-220.

Perakis, S.S., D.A. Maguire, T.D. Bullen, K. Cromack, R.H. Waring and J.R. Boyle. 2006. Coupled nitrogen and calcium cycles in forests of the Oregon Coast Range. Ecosystems 9:63-74.

Perakis, S.S., J.E. Compton and L.O. Hedin. 2005. Nitrogen retention across a gradient of 15N additions to an unpolluted temperate forest soil in Chile. Ecology 86:96-105.

Rastetter, E.B., S.S. Perakis, G.R. Shaver and G.I. Agren. 2005. Terrestrial C sequestration at elevated CO2 and temperature: The role of dissolved organic N loss. Ecological Applications 15:71-86.