Jump to main content or area navigation.

Contact Us

Exposure Research

Records 1 to 90 of 90
Lopez, R D., D T. Heggem, J. P. Schneider, R. D. Van Remortel, E. J. Evanson, L. Bice, AND D W. Ebert. THE GREAT LAKES BASIN LANDSCAPE ECOLOGY METRIC DATA BROWSER (BETA V1.0). U.S. Environmental Protection Agency, Washington, DC.
2015
Hare, L., D. Heggem, R. Hall, AND P. Husby. An Ecological Characterization and Landscape Assessment of the Muddy-Virgin River Project Area. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-15/040, 2014.
2014
Hare, L., D. Heggem, R. Hall, AND P. Husby. Ecological Condition of Streams in Eastern and Southern NevadaEPA R-EMAP Muddy-Virgin River Project. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-14/256, 2014.
2013
Hare, L., D. Heggem, R. Hall, AND P. Husby. An Ecologic Characterization and Landscape Assessment of the Humboldt River Basin. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-13/006, 2013.
Kozlowski, D., S. Swanson, R. Hall, AND D. Heggem. Linking Changes in Management and Riparian Physical Functionality to Water Quality and Aquatic Habitat: A Case Study of Maggie Creek, NV. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-13/133, 2013.
2012
Hare, L., D. Heggem, R. Hall, AND P. Husby. Ecological Condition of Streams in Northern Nevada EPA R-MAP Humboldt Basin Project. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R/12/605, 2012.
2010
Kozlowski, D., S. Swanson, R. K. HALL, D. T. HEGGEM, AND Leah HARE. Linking Changes in Management and Riparian Physical Functionality to Water Quality and Aquatic Habitat. Presented at National Monitoring Conference, Denver, CO, April 25 - 29, 2010.
2009
ARAUJO, R., R. S. DYER, R. C. FORTMANN, F. A. FULK, F. S. HAUCHMAN, D. T. HEGGEM, S. T. RAO, M. R. RODGERS, L. S. SHELDON, AND E. J. WEBER. A Conceptual Framework for U.S. EPA’s National Exposure Research Laboratory. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-09/003 (NTIS PB2010-103951), 2009.
HALL, R. K., R. L. Watkins, D. T. HEGGEM, K. B. Jones, P. R. Kaugmann, S. B. Moore, AND S. J. Gregory. Quantifying Structural Physical Habitat Attributes Using Lidar and Hyperspectral Imagery (1). ENVIRONMENTAL MONITORING AND ASSESSMENT. Springer, New York, NY, , 1-21, (2009).
HALL, R., R. L. Watkins, D. T. HEGGEM, K. Jones, P. R. KAUFMANN, S. B. Moore, AND S. J. Gregory. Quantifying structural physical habitat attributes using LIDAR and hyperspectral imagery - PRK. ENVIRONMENTAL MONITORING AND ASSESSMENT. Springer, New York, NY, 159:63-83, (2009).
2008
LOPEZ, R. D., M. S. NASH, D. T. HEGGEM, AND D. W. EBERT. Even the Upper End of the River Believes in the Ocean1. EM: AIR AND WASTE MANAGEMENT ASSOCIATIONS MAGAZINE FOR ENVIRONMENTAL MANAGERS. Air & Waste Management Association, Pittsburgh, PA, 58(5):20-21, (2008).
NASH, M. S., D. T. HEGGEM, D. W. EBERT, T. G. WADE, AND R. K. HALL. Multi-scale Landscape Factors Influencing Stream Water Quality in the State of Oregon. ENVIRONMENTAL MONITORING AND ASSESSMENT. Springer, New York, NY, 145:343-360, (2008).
2007
HEGGEM, D. T., A. C. NEALE, E. EVANSON, R. VAN REMORTEL, M. JACKSON, AND D. W. EBERT. NATIONAL LANDSCAPE METRICS BROWSER (V1.0). U.S. Environmental Protection Agency, Washington, DC, EPA/600/C-07/014, 2007.
LOPEZ, R. D., M. S. NASH, D. T. HEGGEM, AND D. W. EBERT. USING BROAD-SCALE METRICS TO DEVELOP INDICATORS OF WATERSHED VULNERABILITY IN THE OZARK MOUNTAINS (USA). Presented at 30th Congress of the International Association of Theoretical and Applied Limnology, Montreal, QC, CANADA, August 12 - 18, 2007.
2006
HEGGEM, D. T., E. EVANSON, K. HERMANN, T. SELLE, R. HALL, AND S. AUGUSTINE. EMAP-WEST METRIC BROWSER. U.S. Environmental Protection Agency, Washington, DC, EPA/600/C-06/006, 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 25, 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.
LOPEZ, R. D., M. S. NASH, D. T. HEGGEM, AND D. W. EBERT. USING LANDSCAPE ECOLOGY AND PARTIAL LEAST SQUARES PREDICITIONS TO MAP WATERSHEDS THAT ARE VULNERABLE TO NON-POINT SOURCE POLLUTION. Presented at Sigma Xi Conference, Research Triangle Park, NC, November 02 - 05, 2006.
LOPEZ, R. D., M. S. NASH, D. T. HEGGEM, AND D. W. EBERT. USING LANDSCAPE ECOLOGY AND PARTIAL LEAST SQUARES PREDICTIONS TO MAP WATERSHEDS THAT ARE VULNERABLE TO NON-POINT SOURCE POLLUTION. Presented at Poster/Sigma Xi Conference, RTP, NC, November 02 - 05, 2006.
LOPEZ, R. D., M. S. NASH, D. T. HEGGEM, L. BICE, E. EVANSON, L. WOODS, R. VAN REMORTEL, M. JACKSON, D. W. EBERT, AND T. HARRIS. WATER QUALITY VULNERABILITY IN THE OZARKS USING LANDSCAPE ECOLOGY METRICS: UPPER WHITE RIVER BROWSER (V2.0). U.S. Environmental Protection Agency, Washington, DC, EPA/600/C-06/017, 2006.
2005
BRAMBLETT, R. G., T. R. JOHNSON, A. V. ZALE, AND D. T. HEGGEM. DEVELOPMENT AND EVALUATION OF A FISH ASSEMBLAGE INDEX OF BIOTIC INTEGRITY FOR NORTHWESTERN GREAT PLAINS STREAMS. TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY. American Fisheries Society, Bethesda, MD, 134:624-640, (2005).
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).
NASH, M. S., T. G. WADE, D. T. HEGGEM, AND R. K. HALL. GRAZING POTENTIAL INDEX (GPI) AND SURFACE WATER QUALITY IN THE STATE OF OREGON: I. LIKELIHOOD OF ANIMAL PATHOGENIC PRESENCE USING ENTEROCOCCI. Presented at EPA 2005 Science Forum, Washington, DC, May 16, 2005.
KEPNER, W. G., T. D. SAJWAJ, D. T. HEGGEM, D. F. BRADFORD, AND E. J. EVANSON. NEVADA GEOSPATICAL DATA BROWSER. U.S. Environmental Protection Agency, Washington, DC, EPA/600/C-05/005, 2005.
PITCHFORD, A. M., D. T. HEGGEM, AND R. VANREMORTEL. NEW GIS WATERSHED ANALYSIS TOOLS FOR SOIL CHARACTERIZATION AND EROSION AND SEDIMENTATION MODELING. Presented at EPA GIS Working Group, Winter Park, CO, September 13 - 16, 2005.
HALL, R. K., R. WATKINS, D. T. HEGGEM, K. B. JONES, P. R. KAUFMANN, S. B. MOORE, AND S. J. GREGORY. QUANTIFYING STREAM STRUCTURAL PHYSICAL HABITAT ATTRIBUTES USING LIDAR AND HYPERSPECTRAL IMAGERY. Presented at USEPA Remote Sensing Landscape Characterization Workshop, Chicago, IL, November 01 - 03, 2005.
JONES, B., D. T. HEGGEM, D. W. EBERT, S. AUGUSTINE, A. SELLE, K. HERMANN, P. LEINENBACH, A. C. NEALE, T. G. WADE, AND R. D. VAN REMORTEL. SPATIAL INDICATORS OF ECOLOGICAL CONDITION IN THE WESTERN UNITED STATES. Presented at Society of Rangeland Management Annual Meeting, Special Symposium: Linkages Between Sustainable Rangelands Roundtables (SRR) Criteria and Agency Rangeland Inventory, Monitoring, and Reporting Efforts, Fort Worth, TX, February 05 - 11, 2005.
2004
Edmonds, C M., R D. Lopez, D T. Heggem, D. W. Williams, AND K. L. Short. 15-METER LANDSAT ANALYSES OF THE MISSISSIPPI RIVER - MAP SERIES FROM HEADWATERS IN THE GULF OF MEXICO. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-03/084 (NTIS PB2004-104950), 2004.
Heggem, D T., A C. Neale, R. K. Hall, AND K B. Jones. A LANDSCAPE MODEL TO PREDICT TOTAL NITROGEN LEVELS IN SURFACE WATERS OF THE WILLAMETTE AND CENTRAL VALLEYS ECOREGION OF THE WESTERN UNITED STATES. Presented at Environmental Monitoring and Assessment Program (EMAP) Symposium 2004, Newport, RI, May 3-7, 2004.
Van Remortel, R. D., R. W. Maichle, D T. Heggem, AND A M. Pitchford. AUTOMATED GIS WATERSHED ANALYSIS TOOLS FOR RUSLE/SEDMOD SOIL EROSION AND SEDIMENTATION MODELING. Presented at Environmental Monitoring and Assessment Program (EMAP) Symposium 2004, Newport, RI, May 3-7, 2004.
Lopez, R D., D T. Heggem, J. Szykman, J G. Lyon, AND G J. Foley. BROAD SCALE APPROACHES FOR DEVELOPING INDICATORS OF AIR AND WATER QUALITY IN THE GREAT LAKES BASIN. Presented at Group on Earth Observations 5 Conference, Ottawa, Ontario, Canada, November 29-30, 2004.
Hall, R. K., J M. Omernik, A. J. Woods, S. A. Bryce, AND D T. Heggem. CLUSTER ANALYSIS OF GREAT BASIN ECOREGIONS USING R-EMAP STREAM DATA. Presented at Environmental Monitoring and Assessment Program (EMAP) Symposium 2004, Newport, RI, May 3-7, 2004.
Heggem, D T., T G. Wade, P. Leinenbach, S. Augustine, A R. Selle, A. Calderon, M. Viger, K A. Hermann, R. K. Hall, A. D. Weiss, AND V. Haack. DEMONSTRATION OF POTENTIAL GRAZING IMPACT TO WATER QUALITY IN THE WESTERN UNITED STATES. Presented at EPA Science Forum 2004, Washington, DC, June 1-3, 2004.
Hall, R. K., A R. Olsen, D T. Heggem, P. Husby, AND L. Chambers. DISTRIBUTION OF MERCURY IN USEPA REGION IX R-EMAP STUDY AREAS. Presented at Environmental Monitoring and Assessment Program (EMAP) Symposium 2004, Newport, RI, May 3-7, 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.
Nash, M S., D F. Bradford, S E. Franson, A C. Neale, W. G. Whitford, AND D T. Heggem. LIVESTOCK GRAZING EFFECTS ON ANT COMMUNITIES IN THE EASTERN MOJAVE DESERT, USA. ECOLOGICAL INDICATORS 4(3):199-213, (2004).
Hall, R. K., D T. Heggem, A C. Neale, R. D. Van Remortel, P Kaufmann, D. Hagans, AND J. Y. Hashimoto. MODELING PHYSICAL HABITAT PARAMETERS. Presented at Environmental Monitoring and Assessment Program (EMAP) Symposium 2004, Newport, RI, May 3-7, 2004.
JonesLepp, T, K E. Varner, AND D T. Heggem. MONITORING DIBUTYLTIN AND TRIPHENYLTIN IN FRESH WATERS AND FISH IN THE UNITED STATES USING MICRO-LIQUID CHROMATOGRAPHY-ELECTROSPRAY/ION TRAP MASS SPECTROMETRY. ARCHIVES OF ENVIRONMENTAL CONTAMINATION & TOXICOLOGY 46(1):90-95, (2004).
Leinenbach, P., S. Augustine, T G. Wade, T. Selle, A. Calderon, M. Viger, D T. Heggem, V. Haack, K A. Hermann, R. K. Hall, AND A. D. Weiss. POTENTIAL FOR WATER QUALITY DEGRADATION DUE TO CATTLE GRAZING IN OREGON. Presented at ESRI 2004 User Conference, San Diego, CA, August 9-13, 2004.
Wade, T G., P. Leinenbach, S. Augustine, A R. Selle, A. Calderon, M. Viger, D T. Heggem, K A. Hermann, R. K. Hall, A. D. Weiss, AND V. Haack. POTENTIAL GRAZING IMPACT TO WATER QUALITY IN THE WESTERN UNITED STATES. Presented at Environmental Monitoring and Assessment Program (EMAP) Symposium 2004, Newport, RI, May 3-7, 2004.
Hall, R. K., R. Watkins, D T. Heggem, K B. Jones, AND P Kaufmann. QUANTIFYING STRUCTURAL PHYSICAL HABITAT ATTRIBUTES USING LIDAR AND HYPERSPECTRAL IMAGERY. Presented at Environmental Monitoring and Assessment Program (EMAP) Symposium 2004, Newport, RI, May 3-7, 2004.
Lopez, R D. AND D T. Heggem. SATELLITE IMAGERY ANALYSES OF THE MISSISSIPPI RIVER: A MAP SERIES FROM HEADWATERS TO THE GULF OF MEXICO. Presented at EPA Science Forum 2004, Washington, DC, June 1-3, 2004.
Lopez, R D., D T. Heggem, C M. Edmonds, K B. Jones, C L. Cross, AND D W. Ebert. USE OF LANDSCAPE METRICS TO PRIORITIZE WATERSHEDS FOR ECOLOGICAL RESTORATION IN ARKANSAS WHITE RIVER BASIN. Presented at 19th Annual Symposium of the United States Regional Association of the International Association for Landscape Ecology, Las Vegas, NV, March 30-April 4, 2004.
Lopez, R D., D T. Heggem, J G. Lyon, AND G J. Foley. USING LANDSCAPE METRICS AS INDICATORS OF WATER QUALITY AND ECOLOGICAL VULNERABILITY IN THE GREAT LAKES BASIN. Presented at Group on Earth Obvservations 5 Conference, Ottawa, Ontario, Canada, November 29-30, 2004.
Lopez, R D., D T. Heggem, C Edmonds, K B. Jones, L. Bice, M. E. Hamilton, E. Evanston, C L. Cross, AND D W. Ebert. UTILIZING REMOTELY SENSED LAND COVER TO DETERMINE HABITAT VULNERABILITY IN WETLANDS. Presented at American Society of Agricultural Engineers, Ottawa, Ontario, Canada, August 1-4, 2004.
2003
Lopez, R D., D T. Heggem, C M. Edmonds, K B. Jones, L. Bice, M. E. Hamilton, E. Evanston, C L. Cross, D W. Ebert, AND B. Keeler. A LANDSCAPE ATLAS OF ECOLOGICAL VULNERABILITY: ARKANSAS' WHITE RIVER WATERSHED AND THE MISSISSIPPI ALLUVIAL VALLEY. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-03/057 (NTIS PB2003-107275), 2003.
Edmonds, C M., D T. Heggem, A C. Neale, B. Guidon, AND K B. Jones. A LANDSCAPE ECOLOGY ANALYSIS OF THE GREAT LAKES BASIN. Presented at The 18th Annual Symposium of the International Association for Landscape Ecology, Alberta, Canada, April 2-6, 2003.
Edmonds, C M., D T. Heggem, A C. Neale, AND K B. Jones. A REGIONAL ECOLOGICAL ANALYSIS OF THE GREAT LAKES BASIN. Presented at Science Forum 2003, Washington, DC, May 5-7, 2003.
Lopez, R D. AND D T. Heggem. AN ECOLOGICAL AND HABITAT VULNERABILITY ASSESSMENT OF ARKANSAS WHITE RIVER BASIN. U.S. Environmental Protection Agency, Washington, DC, EPA/600/J-03/002, 2003.
Lopez, R D., D T. Heggem, AND J G. Lyon. BROAD-SCALE ASSESSMENT OF WETLAND VULNERABILITY USING GIS AND LANDSCAPE-ECOLOGICAL METRICS. Presented at American Society of Agricultural Engineers, Las Vegas, NV, July 27-30, 2003.
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 1990-1997? Presented at North Atlantic Treaty Organization (NATO) - Committee on the Challenge of Modern Organization (CCMS) and Science Committee Workshop on Desertification in the Mediterranean Region. A Security Issue, Valencia, Spain, December 2-5, 2003.
Heggem, D T., D W. Ebert, T G. Wade, E. Evenson, AND L. Bice. EMAP WESTERN UNITED STATES LANDSCAPE CHARACTERIZATION NORTHERN CALIFORNIA DATA BROWSER. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-02/027, 2003.
Heggem, D T., D W. Ebert, T G. Wade, S. Augustine, A. D. Weiss, E. Evenson, AND L. Bice. EMAP WESTERN UNITED STATES LANDSCAPE CHARACTERIZATION NORTHWEST OREGON PILOT STUDY AREA DATA AND PRODUCT BROWSER. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-02/023, 2003.
Heggem, D T., D W. Ebert, T G. Wade, S. Augustine, A. D. Weiss, E. Evenson, AND L. Bice. EMAP WESTERN UNITED STATES LANDSCAPE CHARACTERIZATION OREGON DATA AND PRODUCT BROWSER. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-02/025, 2003.
Heggem, D T., D W. Ebert, T G. Wade, K A. Hermann, T. Selle, E. Evenson, AND L. Bice. EMAP WESTERN UNITED STATES LANDSCAPE CHARACTERIZATION SOUTHERN ROCKIES PILOT STUDY AREA DATA AND PRODUCT BROWSER. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-02/024, 2003.
Heggem, D T. AND C Edmonds. LANDSAT-BASED WATER QUALITY MONITORING OF PYRAMID LAKE. Presented at Science Forum 2003, Washington, DC, May 5-7, 2003.
Lopez, R D., C M. Edmonds, AND D T. Heggem. LANDSCAPE-SCALE ECOLOGICAL FACTORS AND THEIR ROLE IN PLANT OPPORTUNISM OF GREAT LAKES COASTAL WETLANDS. Presented at The 7th International Association of Ecology (INTECOL) International Wetlands Coference, Utrecht, The Netherlands, July 25-30, 2004.
Lopez, R D., C M. Edmonds, E. Jaworski, A C. Neale, K B. Jones, D T. Heggem, J G. Lyon, AND D Garofalo. LANDSCAPE-SCALE MONITORING OF AN OPPORTUNIST: PHRAGMITES AUSTRALIS (CAV) STEUDEL IN GREAT LAKES COASTAL WETLANDS. Presented at International Association for Landscape Ecology, Alberta, Canada, April 2-6, 2003.
Kepner, W G., D J. Semmens, D T. Heggem, AND D. C. Goodrich. NORTHWEST OREGON PILOT STUDY AREA (USA): A WATERSHED ASSESSMENT OF LANDSCAPE CHANGE AND IMPACTS TO AQUATIC RESOURCES. Presented at NATO/CCMS Pilot Study Workshop: Use of landscape Sciences for Environmental Assessment, Debe, Poland, September 1-3, 2003.
Kepner, W G., D J. Semmens, D T. Heggem, E. J. Evanson, C M. Edmonds, S. N. Scott, AND D W. Ebert. SAN PEDRO WATERSHED DATABASE. U.S. Environmental Protection Agency, Washington, DC, EPA/600/C-03/008 (NTIS Rejected), 2003.
Kepner, W G., D J. Semmens, D T. Heggem, E. J. Evanson, C M. Edmonds, S. N. Scott, AND D W. Ebert. THE SAN PEDRO SPATIAL DATA ARCHIVE, A DATABASE BROWSER FOR COMMUNITY-BASED ENVIRONMENTAL PROTECTION. Presented at First Interagency Conference on Research in the Watersheds, Benson, AZ, October 27-30, 2003.
2002
Edmonds, C M., D T. Heggem, A C. Neale, R D. Lopez, AND K B. Jones. DEVELOPMENT OF A MID-ATLANTIC LAND USE/ LAND COVER CHANGE DATA SET (1970S TO 1990S). Presented at 11th Australasian Remote Sensing and Photogrammetry, Brisbane, Australia, September 2-6, 2002.
Lopez, R D., D T. Heggem, AND J G. Lyon. GIS APPLICATION OF LANDSCAPE METRICS TO IDENTIFY WETLAND RESTORATION TARGETS IN ARKANSAS WHITE RIVER BASIN. Presented at American Society of Agricultural Engineers, Las Vegas, NV, July 27-30, 2003.
Miller, S. N., W G. Kepner, M H. Mehaffey, M. Hernandez, D. C. Goodrich, R. C. Miller, D T. Heggem, P. Miller, AND F. K. Devonald. INTEGRATING LANDSCAPE ASSESSMENT AND HYDROLOGIC MODELING FOR LAND COVER CHANGE ANALYSIS. JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION 38(4):915-929, (2002).
Heggem, D T., C M. Edmonds, A C. Neale, AND R. K. Hall. LANDSCAPE SCALE INDICATORS OF MINING ACTIVITY. Presented at U.S. EPA Hardrock Mining 2002 Conference, Westminster, CO, May 7-9, 2002.
Edmonds, C, D T. Heggem, K B. Jones, AND E. Evenson. MID-ATLANTIC LANDCOVER CHANGE DATA BROWSER. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-02/035, 2002.
Kepner, W G. AND D T. Heggem. NORTHWEST ORGEON PILOT STUDY AREA (USA): THE USE OF LANDSCAPE SCIENCE FOR ENVIRONMENTAL ASSESSMENT PILOT STUDY. Presented at North Atlantic Treaty Organization Committee on the Challenges to Modern Society Plenary Meeting, Kiel, Germany, November 19-24, 2002.
Kepner, W G., D T. Heggem, R. P. Czaja, E. J. Evanson, AND C M. Edmonds. THE SAN PEDRO RIVER SPATIAL DATA ARCHIVE, A DATABASE BROWSER FOR COMMUNITY-BASED ENVIRONMENTAL PROTECTION. Presented at Southwest Landscape Change Workshop, Las Cruces, NM, January 20-21, 2002.
2001
Lopez, R D., C M. Edmonds, A C. Neale, E T. Slonecker, K B. Jones, D T. Heggem, J G. Lyon, E. Jaworski, D Garofalo, AND D J. Williams. ACCURACY ASSESSMENTS OF AIRBORNE HYSPERSPECTRAL DATA FOR MAPPING OPPORTUNISTIC PLANT SPECIES IN FRESHWATER COASTAL WETLANDS. Chapter 18, Ross S. Lunetta, John G. Lyon (ed.), Remote Sensing and GIS Accuracy Assessment. CRC Press LLC, Boca Raton, FL, , 253-267, (2003).
Lopez, R D. AND D T. Heggem. AN ECOLOGICAL AND HABITAT VULNERABILITY ASSESSMENT OF THE WHITE RIVER BASIN. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-01/040 (NTIS PB2001-108566), 2001.
Nash, M S., W G. Whitford, D F. Bradford, S E. Franson, A C. Neale, AND D T. Heggem. ANT COMMUNITIES AND LIVESTOCK GRAZING IN THE GREAT BASIN, USA. JOURNAL OF ARID ENVIRONMENTS 49(4):695-710, (2001).
Miller, S., W G. Kepner, M H. Mehaffey, M. Hernandez, D. C. Goodrich, R. Miller, D T. Heggem, P. Miller, AND F. K. Devonald. LAND COVER CHANGE AND LARGE SCALE HYDROLOGIC MODELING OF THE SAN PEDRO RIVER AND CATSKILL/DELAWARE BASINS. Presented at Integrated Decision-making for watershed management symposium, Chevy Chase, MD, January 7-10, 2001.
Chaloud, D J., C M. Edmonds, AND D T. Heggem. SAVANNAH RIVER BASIN LANDSCAPE ANALYSIS. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-01/069 (NTIS PB2002-102155), 2001.
2000
Jones, K B., D T. Heggem, T G. Wade, A C. Neale, D W. Ebert, M S. Nash, M H. Mehaffey, K A. Hermann, A R. Selle, S. Augustine, I A. Goodman, J. A. Pedersen, D Bolgrien, J. M. Vigar, D. Chiang, C. J. Lin, Y. Zhang, J Baker, AND R. VanRemortel. ASSESSING LANDSCAPE CONDITION RELATIVE TO WATER RESOURCES IN THE WESTERN UNITED STATES: A STRATEGIC APPROACH. ENVIRONMENTAL MONITORING AND ASSESSMENT 64(1):227-245, (2000).
Hall, R. K., S. Ellsworth, P. Husby, C. Rosamond, H. Powell, A. Lincoff, AND D T. Heggem. DISTRIBUTION OF SEDIMENT MERCURY CONCENTRATIONS IN THE HUMBOLDT RIVER WATERSHED. Presented at Historic and Current Mining Activities Conference, San Francisco, CA, November 6-10, 2000.
Hall, R. K., A R. Olsen, D. Stevens, B J. Rosenbaum, P. Husby, G. A. Wolinsky, AND D T. Heggem. EMAP DESIGN AND RIVER REACH FILE 3 (RF3) AS A SAMPLE FRAME IN THE CENTRAL VALLEY, CALIFORNIA. ENVIRONMENTAL MONITORING AND ASSESSMENT 64(1):69-80, (2000).
Goodrich, D. C., W G. Kepner, M. Hernandez, S. Miller, B. Goff, K B. Jones, C M. Edmonds, T G. Wade, D W. Ebert, AND D T. Heggem. LANDSCAPE INDICATOR INTERFACE WITH HYDROLOGIC MODELS RESEARCH PLAN. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-00/042 (NTIS PB2003-106598), 2000.
Hall, R. K., P. Tuttle, P. Husby, D T. Heggem, AND J. Hillenbrand. RESEARCH PLAN: NORTHEASTERN NEVADA LANDSCAPE AND AQUATIC RESOURCE CHARACTERIZATION ON FEDERAL LANDS. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-00/011, 2000.
Kepner, W G. AND D T. Heggem. SAN PEDRO GEODATA BROWSER. U.S. Environmental Protection Agency, Washington, DC, EPA/600/C-00/002 (NTIS Rejected), 2000.
1999
Heggem, D T., W G. Kepner, C M. Edmonds, E. J. Evanson, AND L. Bice. A DATA BROWSER FOR THE SAN PEDRO RIVER WATERSHED. Presented at Divided Waters - Common Ground Binational Conference on the Upper San Pedro Basin of Sonora and Arizona, Bisbee, AZ, November 7-10, 1999.
Mehaffey, M H., W G. Kepner, AND D T. Heggem. ANALYSIS OF LANDSCAPE CONDITIONS IN THE CATSKILL, DELAWARE, LAS VEGAS, SAN PEDRO, TENSAS WATERSHEDS. Presented at 1999 Community Involvement Conference, Kansas City, KS, May 24-28, 1999.
Bradford, D F., M S. Nash, W G. Whitford, A C. Neale, AND D T. Heggem. ANT AND BIRD SPECIES ASSEMBLAGES AS INDICATORS OF ECOLOGICAL INTEGRITY IN GREAT BASIN RANGELANDS. Presented at Great Basin Biological Research Conference, Reno, NV, October 14-16, 1999.
Heggem, D T., A C. Neale, C M. Edmonds, L. Bice, R. VanRemortel, AND K B. Jones. ECOLOGICAL ASSESSMENT OF THE LOUISIANA TENSAS RIVER BASIN. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-99/016, 1999.
Heggem, D T., C M. Edmonds, A C. Neale, K B. Jones, AND L. Bice. FORESTED WETLAND RESTORATION: IDENTIFYING POTENTIAL SITES IN NORTHEAST LOUISIANA. Geo Info Systems 9(3):34-39, (1999).
Pedersen, J. A., C. J. Lin, D. Chiang, T G. Wade, AND D T. Heggem. INDICATOR QUANTIFICATION FOR LANDSCAPE-LEVEL AQUATIC ECOLOGICAL VULNERABILITY ASSESSMENT IN SELECTED AREAS OF NORTHERN AND SOUTHERN CALIFORNIA: INITIAL RESULTS. Presented at Ecological Society of America Annual Meeting, Spokane, WA, August 19, 1999.
Augustine, S., Y. Zhong, T G. Wade, D T. Heggem, AND K B. Jones. INDICATOR QUANTIFICATION FOR LANDSCAPE-LEVEL AQUATIC ECOLOGICAL VULNERABILITY ASSESSMENT IN SELECTED AREAS OF OREGON. Presented at Ecological Society of America Annual Conference, Spokane, WA, August 19, 1999.
Hermann, K A., A R. Selle, J. M. Vigar, T G. Wade, AND D T. Heggem. INDICATOR QUANTIFICATION FOR LANDSCAPE-LEVEL AQUATIC ECOLOGICAL VULNERABILITY ASSESSMENT IN SELECTED AREAS OF THE COLORADO PLATEAU, SOUTHERN ROCKIES & UPPER MISSOURI RIVER. Presented at Ecological Society of America Annual Meeting, Spokane, WA, August 19, 1999.
Edmonds, C M., D T. Heggem, AND P Cuartas. LANDSCAPE CHANGE OF THE LAS VEGAS VALLEY, 1972 TO 1998. Presented at Mojave Desert Science Symposium, Las Vegas, NV, February 25-26, 1999.
Heggem, D T., A C. Neale, C M. Edmonds, L. Bice, AND K B. Jones. LANDSCAPE ECOLOGY ASSESSMENT OF THE TENSAS RIVER BASIN, MISSISSIPPI RIVER DELTA REGION, AND GULF OF MEXICO. Presented at Managing for Ecosystem Health, Sacramento, CA, August 15-20, 1999.
Edmonds, C M., W G. Kepner, D T. Heggem, AND L. Bice. MEASURING CHANGE IN THE SAN PEDRO RIPARIAN ECOSYSTEM: A COMPARISON OF TWO METHODS. Presented at Divided Waters - Common Ground Binational Conference on the Upper San Pedro Basin of Sonora and Arizona, Bisbee, AZ, November 7-10, 1999.


Jump to main content.