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WICKHAM, J. D., T. G. WADE, AND K. RIITERS. LAND-COVER CHANGE AND ITS IMPACT ON NUTRIENT EXPORT VARIANCE. Presented at International Association for Landscape Ecology, World Congress, Wageningen, NETHERLANDS, July 08 - 12, 2007.

WICKHAM, J. D. NATIONAL LAND COVER DATASET 2001. Presented at EPA Regional Workshop, Boston, MA, May 14 - 18, 2007.

WICKHAM, J. D., K. RITTERS, T. G. WADE, AND J. COULSTON. TEMPORAL CHANGE IN FOREST FRAGMENTATION AT MULTIPLE SCALES. LANDSCAPE ECOLOGY. Springer, New York, NY, 22(4):481-489, (2007).

WICKHAM, J. D., K. RITTERS, AND T. G. WADE. US LAND-COVER MONITORING AND DETECTION OF CHANGES IN SCALE AND CONTEXT OF FOREST. Presented at Proceedings of Forest Stat 07, Montpelier, FRANCE, November 05 - 11, 2007.

Stehman, S. V. AND J D. Wickham. ASSESSING ACCURACY OF NET CHANGE DERIVED FROM LAND COVER MAPS. PHOTOGRAMMETRIC ENGINEERING AND REMOTE SENSING. American Society for Photogrammetry and Remote Sensing, Bethesda, MD, 72(2):175-186, (2006).

WICKHAM, J. D., K. H. RIITTERS, T. G. WADE, AND B. JONES. COMPARISON OF ECOLOGICAL REGIONS AND LAND-COVER COMPOSITION FOR GUIDING ESTABLISHMENT OF NUTRIENT CRITERIA. Presented at Annual Meeting, North American Benthological Society, Anchorage, AK, June 04 - 09, 2006.

RIITTERS, K. H., J. D. WICKHAM, AND T. G. WADE. EVALUATING ECOREGIONS FOR SAMPLING AND MAPPING LAND-COVER PATTERNS. PHOTOGRAMMETRIC ENGINEERING AND REMOTE SENSING 72(7):781-788, (2006).

WICKHAM, J. D., K. H. RIITTERS, AND T. G. WADE. EXAMINING MULTI-SCALE CHANGES IN FOREST FRAGMENTATION. Presented at Annual Meeting, U.S. Chapter of Innternational Association of Landscape Ecology, San Diego, CA, March 28 - April 01, 2006.

WICKHAM, J. D. GEOGRAPHIC MODELING AT EPA'S LANDSCAPE ECOLOGY BRANCH. Presented at Geographic Modeling at EPA, National Academy of Sciences, Board on Earth Sciences and Resources, Washington, DC, October 23, 2006.

WICKHAM, J. D. LANDSCAPE ASSESSMENT FOR TARGETED MONITORING, GUIDING CRITERIA DEVELOPMENT, AND FORECASTING RECOVERY POTENTIAL. Presented at Office of Water/Office of Research and Development Seminar Series, Washington, DC, November 08, 2006.

SEMMENS, D. J., D. T. HEGGEM, D. W. EBERT, W. G. KEPNER, A. M. PITCHFORD, S. JARNAGIN, D. B. JENNINGS, J. D. WICKHAM, L. EXUM, AND D. NORTON. LANDSCAPE ASSESSMENT TOOLS FOR WATERSHED CHARACTERIZATION. Presented at BOSC Water Quality Program Review, Cincinnati, OH, January 01, 2005.

SEMMENS, D. J., D. T. HEGGEM, D. W. EBERT, W. G. KEPNER, A. M. PITCHFORD, S. JARNAGIN, D. B. JENNINGS, J. D. WICKHAM, L. EXUM, AND D. NORTON. LANDSCAPE ASSESSMENT TOOLS FOR WATERSHED CHARACTERIZATION. Presented at BOSC Water Quality Program Review, Cincinnati, OH, January 25, 2006.

Jones, K B., A C. Neale, T G. Wade, J D. Wickham, M S. Nash, C M. Edmonds, K. H. Riitters, E R. Smith, AND R. D. Van Remortel. MULTISCALE RELATIONSHIPS OF LANDSCAPE CHARACTERISTICS AND NITROGEN CONCENTRATIONS IN STREAMS . Jianguo, Wu, K. Bruce Jones, Li Harbin, Orie L. LOoucks (ed.), Scaling and Uncertainty Analysis in Ecology Methods and Application. Columbian University Press, Cambridge, NY, , 205-224, (2006).

WICKHAM, J. D., K. RIITTERS, T. G. WADE, M. COAN, AND C. HOMER. THE EFFECT OF APPALACHIAN MOUNTAINTOP MINING ON INTERIOR FOREST. LANDSCAPE ECOLOGY. Springer, New York, NY, 22(2):179-197, (2007).

WICKHAM, J. D., B. JONES, T. G. WADE, AND K. H. RIITTERS. UNCERTAINTY IN SCALING NUTRIENT EXPORT COEFFICIENTS. Chapter 12, Methods and Applications. Springer, New York, NY, , 225-237, (2006).

Nash, M S., T G. Wade, D T. Heggem, AND J D. Wickham. DOES ANTHROPOGENIC ACTIVITIES OR NATURE DOMINATE THE SHAPING OF THE LANDSCAPE IN THE OREGON PILOT STUDY AREA FOR 1990-1999? William G. Kepner, Jose L. Rubio, David A. Mouat, Fausto Pedrazzini (ed.), KLUWER ACADEMIC PUBLISHERS. Springer Science and Business Media B.V;Formerly Kluwer Academic Publishers B.V., , Germany, , 305-323, (2005).

Wickham, J D., K. H. Riitters, T G. Wade, AND K B. Jones. EVALUATING THE RELATIVE ROLES OF ECOLOGICAL REGIONS AND LAND-COVER COMPOSITION FOR GUIDING ESTABLISHMENT OF NUTRIENT CRITERIA. LANDSCAPE ECOLOGY 20:791-798, (2005).

Tran, L. T., J D. Wickham, S T. Jarnagin, AND C. G. Knight. MAPPING SPATIAL THEMATIC ACCURACY WITH FUZZY SETS. PHOTOGRAMMETRIC ENGINEERING AND REMOTE SENSING 71(1):29-36, (2005).

Riitters, K. H., J D. Wickham, AND J. W. Coulston. USE OF ROAD MAPS IN NATIONAL ASSESSMENTS OF FOREST FRAGMENTATION IN THE UNITED STATES. C.S. Holling, Carl Folke, Lance Gunderson, Michelle Lee, Allyson Quinlan (ed.), CONSERVATION ECOLOGY 9(2):13,online, (2005).

Riitters, K. H., J D. Wickham, AND J. W. Coulston. A PRELIMINARY ASSESSMENT OF THE MONTREAL PROCESS INDICATORS OF FOREST FRAGMENTATION FOR THE UNITED STATES. ENVIRONMENTAL MONITORING AND ASSESSMENT 91(1-3):257-276, (2004).

Wickham, J D., S. V. Stehman, J H. Smith, T Wade, AND L. Yang. A PRIOR EVALUATION OF TWO-STAGE CLUSTER SAMPLING FOR ACCURACY ASSESSMENT OF LARGE-AREA LAND-COVER MAPS. INTERNATIONAL JOURNAL OF REMOTE SENSING 25(6):1235-1252, (2004).

Wade, T G., K. H. Riitters, J D. Wickham, AND K B. Jones. ANTHROPOGENIC AND NATURAL FOREST FRAGMENTATION IN THE UNITED STATES.

Wickham, J D. AND K B. Jones. COMMUNICATION: SHOULD ECOLOGICAL REGIONS OR LAND-COVER COMPOSITION GUIDE ESTABLISHMENT OF NUTRIENT CRITERIA. Presented at EPA Science Forum 2004, Washington, DC, June 1-3, 2004.

Wickham, J D., K. H. Riitters, T G. Wade, AND K B. Jones. COMMUNICATION: SHOULD ECOLOGICAL REGIONS OR LAND-COVER COMPOSITION GUIDE ESTABLISHMENT OF NUTRIENT CRITERIA? Presented at US International Association of Landscape Ecology (IALE) Annual Meeting, Las Vegas, NV, March 30-April 2, 2004.

NASH, M. S., T. G. WADE, D. T. HEGGEM, AND J. D. WICKHAM. DOES ANTHROPOGENIC ACTIVITIES OR NATURE DOMINATE THE SHAPING OF THE LANDSCDAPE IN THE OREGON PILOT STUDY AREA FOR 1990-1999? Presented at EnviroExpo: Moving Towards Balance Open House, Las Vegas, NV, December 09, 2004.