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Photo: Edward Robert Atwill

Edward Robert Atwill- BA, DVM, MPVM, PhD
Population Health & Reproduction

1477 Drew Ave
Suite 101, Davis, CA 95618

+1 530 754 2154


Research Focus

The primary goal of my research and extension program is to identify management strategies for minimizing microbial contamination of surface water supplies and ground water resources; preharvest microbial food safety; characterizing the underlying processes of environmental dissemination of microbial hazards; development of monitoring methods for assessing environmental or agroecosystem health; assessing vertebrate reservoirs of zoonotic pathogens through California's diverse landscapes; and to extend this breadth of information to individuals, institutions, and agencies involved in the complex issue of microbial water quality, preharvest food safety, and sustainability of California agriculture.

Specialty Focus



1985 BA Animal Physiology, University of California, San Diego, CA
1990 DVM Food Animal, University of California, Davis, CA
1991 MPVM Herd Health & Epidemiology, University of California, Davis, CA
1994 PhD Infectious Disease & Epidemiology, Cornell University, Ithaca, NY

Honors and Awards

2012 Golden Fleece Award, California Wool Growers Association
2011 Outstanding Achievement Award - Research/Academia, Society for Range Management
2005 Pfizer Animal Health Award for Research Excellence, School of Veterinary Medicine, UC Davis
2001 Award for Outstanding Achievement in UC Cooperative Extension, Friends of Agricultural Extension, California. Finalist.
2000 Award for Outstanding Achievement in UC Cooperative Extension, Friends of Agricultural Extension, California. Finalist.

Active Research Grants

Principal Investigator, FDA Western Center for Food Safety, (Principal Investigator), Food and Drug Administration

Co-Investigator, Transport and mitigation of beef cattle veterinary pharmaceuticals and hormones in surface and sub-surface runoff from grazing lands, K. Tate (Principal Investigator), National Research Initiative Competitive Grants Program, USDA

Co-Principal Investigator, Livestock management and waterborne microbial pollutants on U.S. Forest Service Grazing Allotments, Ken Tate (Principal Investigator), U.S. Forest Service

Co-Principal Investigator, Bacteria source tracking, grazing management practice implementation, and assessment for watersheds in the Lahontan region, Kris Kuyper (Principal Investigator), Proposition 84, California State Water Resources Control Board

Co-Investigator, Behavioral management of deleterious aggression in rhesus macaques, Brenda McCowan (Principal Investigator), National Center for Research Resource, NIH

Co-Principal Investigator, Catalyzing new international collaborations: solving human-wildlife conflict in India through research, education and outreach, Brenda McCowan (Principal Investigator), Seed Grants for Outreach and International Activities Program, UC Davis

Co-Investigator, Effects of road transport on physiological stress indices and pathogen shedding in adult beef cows, Xunde Li (Principal Investigator), Russell L. Rustici Rangeland and Cattle Research Endowment, UC Davis

Principal Investigator, Statewide coordination of a science-based response to waterborne pathogen concerns of beef cattle on California rangelands, (Principal Investigator), Russell L. Rustici Rangeland and Cattle Research Endowment, UC Davis

Co-Principal Investigator, Laboratory services for the Safe-to-Swim Program, Xunde Li (Principal Investigator), California State Water Resources Control Board

Principal Investigator, Improving in-field sampling protocols and using scent detection dogs for enhancing produce food safety, (Principal Investigator), California Department for Public Health

Co-Investigator, Expanding the utility of social network analysis for multilevel health outcomes, Brenda McCowan (Principal Investigator), Eunice Kennedy Shriver National Institute Of Child Health & Human Development, NIH

Most Recent 10 Publications

  • Link Icon 2012 Park Y, Atwill ER, Hou L, Packman AI, Harter T Deposition of Cryptosporidium parvum oocysts in porous media: a synthesis of attachment efficiencies measured under varying environmental conditions Environmental Science and Technology,
  • Link Icon 2012 Unc A, Goss MJ, Cook S, Li X, Atwill ER, Harter T Matrix effects critical to microbial transport in organic waste-affected soils across laboratory and field scales Water Resources Research,
  • Link Icon 2011 Kilonzo C, Atwill ER, Mandrell R, Garrick M, Villanueva V, Hoar BR Prevalence and molecular characterization of Escherichia coli O157:H7 by multiple locus variable number tandem repeat analysis and pulsed field gel electrophoresis in three sheep farming operations in California Journal of Food Protection,
  • Link Icon 2011 McCowan B, Beisner B, Capitanio J, Jackson M, Cameron A, Seil S, Atwill ER, Fushing H Network stability is a balancing act of personality, power, and conflict dynamics in rhesus macaque societies PLoS ONE,
  • Link Icon 2011 Thiptara A, Atwill ER, Kongkaew W, Chomel BB Epidemiological trends of rabies in domestic animals in southern Thailand, 1994-2008 American Journal of Tropical Medicine & Hygiene,
  • Link Icon 2011 Ragosta G, Evensen C, Atwill ER, Walker M, Ticktin T, Asquith A, Tate KW Risk factors for elevated Enterococcus concentrations in a rural tropical island watershed Journal of Environmental Management,
  • Link Icon 2011 Gorski L, Parker CT, Liang A, Cooley MB, Jay-Russell MT, Gordus AG, Atwill ER, Mandrell RE Prevalence, Distribution and diversity of Salmonella enterica in a major produce region of California Appl Environ Microbiol,
  • Link Icon 2010 Pereira MG, Li X, McCowan B, Phillips RL, Atwill ER Multiple unique Cryptosporidium isolates from three species of ground squirrels (Spermophilus beecheyi, S. beldingi, and S. lateralis) in California Appl Environ Microbiol,
  • Link Icon 2010 Kondo S, Hoar BR, Villanueva V, Mandrell RE, Atwill ER Longitudinal prevalence and molecular typing of Escherichia coli O157:H7 by use of multiple-locus variable-number tandem-repeat analysis and pulsed-field gel electrophoresis in fecal samples collected from a range-based herd of beef cattle in California Am J Vet Res,
  • Link Icon 2010 Lewis DJ, Atwill ER, Lennox MS, Pereira MD, Miller WA, Conrad PA, Tate KW Management of microbial contamination in storm runoff from California coastal dairy pastures J Environ Qual,