JEFFREY R.WALTERS is Bailey Professor of Biology at Virginia Polytechnic Institute and State University, a position he has held since 1994. His professional experience includes assistant, associate, and full professorships at North Carolina State University from 1980 until 1994. Dr. Walters has done extensive research and published many articles on the red-cockaded woodpeckers in North Carolina and Florida and he chaired an American Ornithologists Union Conservation Committee Review that looked at the biology, status, and management of the Cape Sable Seaside Sparrow, a bird native to the Everglades. He is a fellow of the American Ornithologist Union, a member of Sigma Xi, American Society of Naturalists, Animal Behavior Society, Audubon Society, Cooper Ornithological Society, Ecological Society of America, Phi Beta Kappa, and many other scientific organizations. His research interests are in cooperative breeding in birds; reproductive biology of precocial birds; primate intragroup social behavior; evolution of cooperative breeding in birds; ecological basis of sensitivity to habitat fragmentation; kinship effects on behavior; and parental behavior on precocial birds. He holds a B.A. from West Virginia University and a Ph.D. from the University of Chicago.


TOM M.MORRIS is a staff Hydrologist with the Operations Department Maintenance Engineering Division. He currently oversees the operation and maintenance of 108 groundwater production and injection wells for the Las Vegas Valley Water District. He has been closely involved with the groundwater injection program for the 14 years of operation. He drilled and designed the majority of the ASR wells, designed and custom tailored the injection equipment, tracked their efficiency of operation, and made the necessary adjustments to optimize the performance of the wellfield injection program. He specializes in the hydraulic impacts in the wellfield and the hydraulic actions around the well head that effect the injection performance.

MICHAEL C.NEWMAN is Dean of Graduate Studies, School of Marine Science, and Professor of Marine Science, Department of Environmental Sciences, College of William and Mary. Dr. Newman has diverse research interests which include ecotoxicology, general and applied aquatic ecology, contaminant effects on populations, bioaccumulation, factors modifying inorganic contaminant toxicity, fate of inorganic contaminants in aquatic systems, quantitative methods for ecological risk assessment, toxicity models, and water quality. His current projects include population genetics of PAH-exposed fish, stochastic modeling of contaminant exposure from fish consumption, predicting metal bioavailability for risk assessments, improving prediction of lethal effects with time-to-death methods, improving species sensitivity distribution methods for ecological risk assessment, and fate and effects of crop protectants from tomato cultivation on living resources in tidal creeks. He received a B.A. in biology and an M.S. in zoology from the University of Connecticut, and an M.S. and Ph.D. in Environmental Sciences from Rutgers University.

MARYLYNN V.YATES is a professor of environmental microbiology in the Department of Environmental Sciences and associate executive vice chancellor at the University of California, Riverside. Dr. Yates conducts research in the area of water and wastewater microbiology. Current research focuses on contamination of water by human pathogenic microorganisms, especially through the use of reclaimed water and biosolids; developing and improving methods to detect microorganisms in environmental samples; persistence of pathogenic microorganisms in the environment; and efficacy of water, wastewater, and biosolids treatment processes to inactivate pathogenic microorganisms. Dr. Yates previously served on the NRC Committee on Groundwater Recharge. She received a B.S. in nursing from the University of Wisconsin, Madison, an M.S. in chemistry from the New Mexico Institute of Mining and Technology, and a Ph.D. in microbiology from the University of Arizona.

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