*************************************************************************** National Research Council Post-doctoral position with the US Environmental Protection Agency
Nitrogen sources for the nation: Foundation for ecosystem services assessment Inputs of reactive nitrogen (N) to the terrestrial biosphere have increased by nearly five-fold under human influence in the conterminous US due to activities associated with food, fiber, energy production, and transportation. Environmental effects of this N input include impacts to human health, air, land, freshwater, and coastal ecosystem services. The EPA is engaged in a research effort to characterize N-related ecosystem services and human impacts on these services within the US. A vital first step in this analysis is to gain an improved understanding of the spatial and temporal patterns of N input to the landscape and N transfer from land to water. Analyses are expected to focus on spatially explicit, national data sets (both existing and emerging) to enhance understanding of spatial and temporal dynamics of natural and anthropogenic N input to the landscape, and therefore potential impacts on ecosystem services. It is anticipated that datasets developed through this effort will support a complementary effort to model N inputs to surface waters using SPARROW, NEWS, and other models, as well as future efforts to estimate N inputs, transformations, outputs, and removal within many ecosystem types within the US, including wetlands, riparian areas, and river networks. Candidates are expected to have experience and interest in nutrient biogeochemistry; experience managing large data sets and GIS capabilities is preferred. The primary duty station will be the Freshwater Ecology Branch of the Western Ecology Division (WED) located in Corvallis, Oregon. The Associate will work closely with WED and other EPA scientists as part of a national EPA program examining the impacts of nitrogen within EPA’s Ecosystem Services Research Program. Please pass this information to those who might be interested in the position. Closing date is August 1, 2009. For more information on the position see: http://nrc58.nas.edu/pgasurvey/data/aobooks/rapbooks.asp? mode=rodetail&roid=53711&pcd=220209 For information on the NRC program and application process see: http://nrc58.nas.edu/pgasurvey/data/aobooks/rapbooks.asp? mode=frntmtr&progctr=22&seq=20 For more information please contact Jana Compton, Ph.D., [email protected] 541-754-4620
