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Jay R. Christensen, Ph.D.

Ecologist
E-Mail: christensen.jay@epa.gov
Phone (702)-798-2328

Education:

Professional Experience:

Professional Affiliations:

Research Interests:


SELECTED PUBLICATIONS:

ALLEN, P., M. S. NASH, R. C. Ohman, R. D. LOPEZ, J. CHRISTENSEN, A. M. PITCHFORD, N. G. TALLENT-HALSELL, AND L. C. BUTLER. Characterizing and Mapping of Ecosystem Services (CMESs) Literature Database Version 1.0. U.S. Environmental Protection Agency, Washington, DC, EPA/600/C-11/003, 2011. Published 4/18/11.

Christensen, J. and W. Crumpton. WETLAND INVERTEBRATE COMMUNITY RESPONSES TO VARYING EMERGENT LITTER IN A PRAIRIE POTHOLE EMERGENT MARSH. WETLANDS. The Society of Wetland Scientists, McLean, VA, 30(6):1031-1044, (2010). PUBLISHED 12/6/10.

Christensen, J.R., W.G. Crumpton, and A.G. van der Valk. 2009. Estimating the breakdown and accumulation of emergent macrophyte litter: a mass-balance approach. Wetlands 29(1):204-214.


SELECTED PRESENTATIONS:

Christensen, J.R., and A.C. Neale. 2010. Using GIS Models to Identify Relative Nitrogen Attenuation by Riparian Buffers in the Coastal Plain of North Carolina. Soil and Water Conservation Society. St. Louis, MO.

Yuan, Y., J.R. Christensen, R. Bingner, M. Jackson, and M. Locke. 2010. Simulation of Wetland Nitrogen Removal at the Watershed Scale using AnnAGNPS. Soil and Water Conservation Society. St. Louis, MO.

Christensen, J.R., A.C. Neale, and M.S. Nash. 2010. Relating Spatially-Referenced Riparian Metrics to Upland Sources of Nutrients in the Coastal Plain of North and South Carolina. US-International Association for Landscape Ecology. Athens, GA.

Christensen, J.R. and D.W. Ebert. 2009. Effects of stream and elevation resolution on riparian metrics and restoration site identification. American Water Resouces Association. Seatlle, WA.

Christensen, J.R., A.G. van der Valk , W.G. Crumpton, and R. Grosshans. 2009. Modelling emergent macrophyte distributions: including subdominant species. Society of Wetland Scientists Annual meeting. Madison, WI.

Christensen, J.R., W.G. Crumpton, and A.G. van der Valk. 2008. Modeling long-term dynamics of litter accumulation: response to static and variable hydroperiods. INTECOL International Wetlands Conference, Cuiaba, Brazil.

Christensen, J.R. and W.G. Crumpton. 2006. (presentation) Macroinvertebrate response to emergent macrophyte litter manipulations in a depressional wetland. Ecological Society of America. Memphis, TN.

Christensen, J.R. and W.G. Crumpton. 2005. (poster) Distribution of Hyalella azteca across an emergent vegetation to open water gradient in a prairie pothole wetland. Ecological Society of America. Montreal, Canada.

Christensen, J.R. and W.G. Crumpton. 2005. (presentation) Horizontal and vertical distribution of Hyalella azteca across an emergent vegetation to open water gradient. 32nd Annual Great Plains Limnology Conference. Lawrence, KS.

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