mental compliance responsibilities included monitoring stream and spring water quality. She now teaches courses in public land, land use, water pollution, and natural resources law. Her current research interests are in using science and the law to protect riparian areas and the quality of surface waters, particularly in the West.

Stanley V. Gregory has been a professor of fisheries and wildlife at the Oregon State University since 1986. His research focuses on stream ecosystems, including channel dynamics, woody debris, benthic algae, invertebrates, fish, salamanders, and riparian vegetation. He has studied the influence of human activities on ecosystem structure and function, and he is an expert in the historical reconstruction of rivers and riparian forests. Dr. Gregory received his B.S. in zoology from the University of Tennessee and his M.S. and Ph.D. in fisheries from Oregon State University. He has served on the NRC Committee on Environmental Issues in Pacific Northwest Forest Management.

Judson W. Harvey has been a hydrologist with the U.S. Geological Survey’s National Research Program in Reston, VA since 1995. His research is focused on hydrologic transport and biogeochemical reactions near the interface between groundwater and surface water. Dr. Harvey has investigated water flow and chemical reactions in streams and wetlands throughout the country, including steep forested watersheds of the Rocky Mountains in Colorado, alluvial floodplains of semi-arid basins in Arizona, and peatlands in the Everglades of south Florida. His training in hydrology was at the Department of Environmental Sciences at the University of Virginia, after which he held an NRC Postdoctoral Fellowship at the USGS in Menlo Park, CA. Dr. Harvey currently serves on the editorial board of Water Resources Research and on the Water Quality Committee of the American Geophysical Union.

Manuel C. Molles, Jr. is a professor of biology at the University of New Mexico and curator of ichthyology and arthropods at the Museum of Southwestern Biology. He received his Ph.D. in zoology from the University of Arizona. Dr. Molles’ research focuses on riparian ecology, ecology of desert streams, riverine and riparian biodiversity, and ecology of exotic species, with particular attention given to the Rio Grande. In addition, he is an expert in groundwater–stream interactions and the effect of forest fire and flooding on riparian ecosystems.

Elizabeth I. Rogers is a research ecologist with White Water Associates, Inc., where she is involved in a variety of research, resource management. and education projects involving riparian areas. Dr. Rogers has been a principal scientist on the ecological studies of rivers required by the Federal Energy Regulatory Commission for relicensing of hydroelectric projects. In addition, she has conducted research on bird and mammal use of riparian areas of rivers, lakes, and ephemeral



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