WSU Department of Entomology
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John D. Stark
Professor
Ecotoxicology Program
WSU Puyallup Research & Extension Center
7612 Pioneer Way
Puyallup, WA 98371-4998

Phone: (253) 445-4519
E-Mail: starkj@wsu.edu

John Stark is an ecotoxicologist who specializes in ecological risk assessment of threatened and endangered species. He runs the WSU Salmon toxicology research laboratory and has recently started work on the effects of pesticides on endangered butterfly species. Stark is also a population modeler and has developed population-level risk assessments based on matrix models and differential equation models.

Areas of Interest:

  • Development of hazard/risk assessment for aquatic organisms inhabiting rivers and streams in the Pacific Northwest, including salmon and the invertebrates that they feed on as well as biological control organisms inhabiting agricultural ecosystems. Visit the WSU Salmon Toxicology Laboratory information page.
  • Effects of pesticides on endangered butterfly species
  • Ecotoxicology of pesticides and other toxicants in aquatic and agricultural ecosystems
  • Demographic toxicology and modeling impacts on populations.
  • Tephritid fruit fly population ecology and control

Education:

  • B.S. Forest Biology, 1978, Syracuse University
  • B.S. Biology, 1978, S.U.N.Y. Environmental Science and Forestry School, Syracuse, New York
  • M.S. Entomology, 1981, Louisiana State University
  • Ph.D. Entomology/Pesticide Toxicology, 1987, University of Hawaii

Leadership:

  • Member Puget Sound Partnership Science Panel, 2008 - present
  • President of the Pacific Branch of the Entomological Society of America, 2005-2006
  • Invited Expert. Society of Toxicology Workshop. Probabilistic Risk Assessment: bridging components along the exposure-dose-response continuum. July 25-27, 2005. Washington, D.C.
  • FIFRA Scientific Advisory Panel on Plant Incorporated Protectants (Viral Coat Proteins) in genetically engineered plants. 2004-present.
  • Governing Board Member, Entomological Society of America 2002-2004.
  • Member of the Washington State Pesticide Task Force 2000-2003
  • Assistant Director of the State of Washington Water Research Center. July 2001-2003.
  • Member of the Washington State - Regulatory Work Group (RWG) Committee on Freshwater Sediment Toxicity Assessment 1998-2000

Textbook:
Akçakaya, H., Stark, J.D., & Bridges, T. (2008). Demographic Toxicity: Methods in Ecological Risk Assessment: Oxford University Press, Oxford, UK

Selected Referred Publications from approximately 80 papers:

Banks, J.E., Dick, L.K., Banks, H.T., Stark, J.D. 2008. Time-varying disturbance parameters in ecology: an alternative to matrix models. Ecological Modelling 210:155-160.

Stark, J.D., Sugayama, R., and Kovaleski, A. 2007. Why demographic and modeling approaches should be adopted for estimating the effects of pesticides on biocontrol agents. BioControl. 52: 365-374.

Kramarz, P., Banks, J., and Stark, J.D. 2007. Density-dependent response of the pea aphid (Hemiptera: Aphididae) to imidacloprid. J. Insect Science 42: 200-206.

Stark, J.D., and Acheampong, S. 2007. A demographic and modeling approach to determine the suitability of two hosts, Brevicoryne brassicae (Linnaeus) (Aphididae) and Myzus persicae (Sulze). Pan Pacific Entomologist 83: 1-8.

Banks, H., Banks, J., Dick, L., and Stark, J.D. 2007. Estimation of dynamic rate parameters in insect populations undergoing sublethal exposure to pesticides. Bulletin of Mathematical Biology. 69: 2139-2180.

Stark, J.D., Vargas, R.I., and Banks, J.E. 2007. Incorporating Ecologically Relevant Measures of Pesticide Effect for Estimating the Compatibility of Pesticides and Biocontrol Agents. J. Econ. Entomol. 100: 1027-1032.

Stark, J.D., and Acheampong, S. A. 2007. A demographic and modeling approach to determine the suitability of two hosts, Brevicoryne brassicae (Linnaeus) (Aphididae) and Myzus persicae (Sulzer) (Aphididae) of the aphid parasitoid, Diaeretiella rapae (McIntosh) (Aphidiidae). Pan Pacific Entomology 83: 1-8.

Kramarz, P., Banks, J.E. and Stark, J.D. 2007. Density-dependent response of the pea aphid (Hemiptera: Aphididae) to imidacloprid. J. Entomological Science 42: 200-206.

Stark, J.D., Sugayama R., and Kovaleski A. 2007. Why demographic and modeling approaches should be adopted for estimating the effects of pesticides on biocontrol agents. BioControl 52: 365-374.

Uchida, G.K., Mackey, B.E., Vargas, R.I., Beardsley, J.W., Hardy, D.E., Goff, M.L. and Stark, J.D. 2006. Response of nontarget insects to methyl eugenol, Cue-lure, Trimedlure, and protein bait bucket traps on Kauai Island, Hawaii, USA. Proceedings of the Hawaiian Entomological Society 38: 61-71.

Stark, J.D. 2006. Toxicity endpoints used in risk assessment: What do they really mean? SETAC Globe 7 (2): 29-30.

Adams, B.M., Banks, H.T., Banks, J.E. and Stark, J.D. 2005. Population dynamics models of plant-insect herbivore-pesticide interactions. Mathematical Biosciences 196: 39-64.

Vargas R.I., Stark J.D., Mackey B, and Bull R. 2005. Weathering trials of AmuletTM, Cue-Lure and AmuletTM Methyl Eugenol attract and kill stations with male melon flies and oriental fruit flies (Diptera: Tephritidae) in Hawaii. J. Econ. Entomol. 98:1551-1559.

Stark J.D. and Vargas R.I. 2005. Toxicity and hazard assessment of Fipronil to Daphnia pulex. Ecotox. Environ. Safety 62: 11-16.

Stark J.D.,and Crawford, R. 2005. Short-term Effects of the Neem Insecticide, Margosan-O and Chlorpyrifos on a Spider (Araneida: Linyphiidae) Community Inhabiting Turf Grass. Biopesticides International 1:71-81.

Stark, J.D. 2005. How closely do acute lethal concentration estimates predict effects of toxicants on populations? Integrated Environmental Assessment and Management 1: 109-113.

Banks, J.E., and Stark, J.D. 2004. Aphid response to vegetation diversity and insecticide applications. Agriculture, Ecosystems and Environment 103: 595-599

Acheampong, S. and Stark, J.D. 2004. Can reduced rates of a selective aphicide, pymetrozine and natural enemies act effectively together to control the cabbage aphid, Brevicoryne brassicae (Homoptera: Aphididae) on broccoli? International Journal of Pest Management 50: 275-279.

Stark, J.D, Vargas, R.I, and N. Miller. 2004. Toxicity of Spinosad in Protein Bait to Three Economically Important Tephritid Fruit Fly Species (Diptera: Tephritidae) and Their Parasitoids (Hymenoptera: Braconidae). Journal of Economic Entomology 97: 911-915.

Acheampong, S. and Stark J.D. 2004. Effects of the agricultural adjuvant, Sylgard 309 and the insecticide, pymetrozine on demographic parameters of the aphid parasitoid, Diaretiella rapae. Biological Control 31: 133-137.

Stark, J.D, Banks, J.E. and Acheampong, S. 2004. Estimating susceptibility of biological control agents to pesticides: influence of life history strategies and population structure. Biological Control 29: 392-398.

Stark, J.D., Banks J.E., and Vargas R.I. 2004. How risky is risk assessment? The Role that Life History Strategies Play in Susceptibility of Species to Stress. 2004. Proceedings of the National Academy of Sciences 101: 732-736.

Stark, J.D. and Vargas, R.I. 2003. Demographic changes in Daphnia pulex (leydig) after exposure to the insecticides spinosad and diazinon. Ecotoxicology and Environmental Safety 56: 334-338.

Stark, J.D. and Walthall, W.K. 2003. Agricultural adjuvants: acute mortality and effects on population growth rate of Daphnia pulex after chronic exposure. Environ. Toxicol. Chem. 22: 3056-3061.

Kramarz, P. and Stark, J.D. 2003. Population Level Effects of Cadmium and the Insecticide, Imidacloprid to the Parasitoid, Aphidius ervi after Exposure Through its Host, the Pea Aphid, Acyrthosiphon pisum. Biological Control 27: 310-314.

Stark, J.D. and Banks, J.E. 2003. Population-level effects of pesticides and other toxicants on arthropods. Annu. Rev. Entomol. 48: 505-19.

Wood, B. and Stark, J.D. 2002. Acute toxicity of drainage ditch water from a Washington State cranberry growing region to Daphnia pulex in laboratory bioassays. Ecotoxicology and Environmental Safety 53: 273-280.

Stark, J.D. and Banks, J.E. 2001. "Selective Pesticides": Are They Less Hazardous to the Environment? BioScience 51: 980-982.

Stark, J.D. 2001. Population-level effects of the neem insecticide, Neemix on Daphnia pulex. J. Environ. Sci and Health. B36: 457-465.

Teaching Activities - Fall Semester of Odd Years:
Entom. 558; CropS. 558; ES/RP 558, P/T 558: Pesticide Topics

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