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Thomas G. PfleegerResearch Plant PhysiologistVoice: 541-754-4374 |
Education:
- B.S., SUNY Syracuse; Biological Sciences, 1974.
- M.S., Oregon State Univ.; Plant Ecology, 1991.
- Ph.D., Oregon State Univ.; Plant Ecology, 1998.
Previous Positions:
- 1985-1990: Plant Physiologist, USEPA, Corvallis Environmental Research Laboratory
- 1979-1985: Biological Technician, USEPA, Corvallis Environmental Research Laboratory
Research Interests and Skills:
- Plant and plant community response to biotic and abiotic stress
- Plant ecotoxicology
Keywords:
- Scientific Disciplines: Biology--environmental; Botany--plant pathology; Ecology--community, ecosystem, plant, population, and restoration; Physiology--plant; Risk assessment--ecological; Toxicology--plant.
- Stressors: Chemical--organics, ozone, and pesticides; Physical--habitat modification, and stress.
- Methods and Techniques: Indicator development; Toxicity testing--plant.
Professional Societies:
- British Ecological Society
- Society of Environmental Toxicology and Chemistry
- Ecological Society of America
Appointments / Honors:
- Steering Committee on Issues of Nontarget Plant Toxicity (1998-present)
- Curriculum development on vegetation for the Corvallis School District, Outdoor School (1997- present)
- EPA Scientific and Technological Achievement Award, 1996 Level I
- Environmental Protection Agency Scientific and Technological Achievement Award, 1988 Level III
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Pfleeger, T.G., M. Plocher and P. Bichel. 2010. The effects of ozone on artificial plant communities. Agriculture, Ecosystems and Environment 138:116-126.
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Olszyk, D., T. Pfleeger, E.H. Lee, and M. Plocher. 2010. Potato(Solanum tuberosum) greenhouse tuber production as an assay for asexual reproduction effects from herbicides. Environmental Toxicology and Chemistry. Environmental Toxicology and Chemistry 29:111-121.
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Olszyk, D., Pfleeger, T., Lee, E.H., and Plocher, M. 2009. Pea (Pisium sativum) seed production as an assay for reproductive effects due to herbicides. Environmental Toxicology and Chemistry 28:1920-1929.
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Pfleeger, T., D. Olszyk, M. Plocher and S. Yilma. 2008. Effects of Low Concentrations of Herbicides on Full-Season, Field-Grown Potatoes. Journal of Environmental Quality. 37:2070-2082.
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Olszyk, D., Pfleeger, T., Lee, E.H., Burdick, C., King, G., Plocher, M., Kern, J. 2008. Selecting and evaluating native plants for region-specific phytotoxicity testing. Integr. Environ. Assess. Manag. 4:105-117.
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Bidelspach, C., D. Olszyk, and T. Pfleeger. 2008. Can Artificial Soil be used in the Vegetative Vigor Test for US Pesticide Registration? Integrated Environmental Assessment and Management. 4:409-415.
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Pfleeger, T.G., D. Olszyk, C. Burdick, G. King, J. Kern and J. Fletcher. 2006. Using geographic information system to identify areas for potential off target pesticide exposures. Environ. Tox. and Chem. 25:2250-2259.
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Pfleeger, T.G. 2005. Moving plant toxicology from the greenhouse to the field: a method that incorporates the positive attributes of each. Bulletin of Environmental Contamination and Toxicology.
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Olszyk, D., C. Burdick, T. Pfleeger, E.H. Lee, L.S. Watrud. 2004. Assessing the Risks to Non-Target Plants from Herbicides. Japanese Journal of Agricultural Meteorology. 60:221-242.
- Pfleeger, T.G., M.A. da Luz, and C.C. Mundt. 1999. Lack of synergistic
interaction between ozone and wheat leaf rust in wheat swards.
Environ. & Exp. Bot. 41(3):195-207.
- Pfleeger, T.G., C.C. Mundt, and Michelle A. da Luz. 1999. Effects of
wheat leaf rust on interactions between wheat and wild oats planted
at various densities and proportions. Can. J. Bot. 77:1669-1683.
- Pfleeger, T.G. and C.C. Mundt. 1998. Wheat leaf rust severity as
affected by plant density and species proportion in simple communities
of wheat and wild oats. Phytopathology 88:708-714.
- Pfleeger, T.G., A. Fong,, R. Hayes, H. Ratsch, and C. Wickliff. 1996.
Field evaluation of the EPA (Kenaga) nomogram, A method for estimating
wildlife exposure to pesticide residues on plants. Environ. Tox. & Chem.
15:534-543.
- Fletcher, J.S., T.G. Pfleeger, H.C, Ratsch, and R. Hayes. 1996. Potential
impact of low levels of chlorsulfuron and other herbicides on growth and
yield of nontarget plants. Environ. Tox. & Chem. 15:1189-1196.
- Pfleeger, T. and D. Zobel. 1995. Organic pesticide modification of
species interactions in annual plant communities. Ecotoxicology
4:15-37.
- Fletcher, J.S., T.G. Pfleeger, and H.C. Ratsch.1995. Chlorsulfuron
influence on garden pea reproduction. Physiologia Plantarum 94:261-267.
- Fletcher, J.S., J.E. Nellessen, and T.G. Pfleeger. 1994. Literature review
and evaluation of the EPA food-chain (Kenaga) nomogram, an instrument
for estimating pesticide residues on plants. Environ. Tox. & Chem. 13:1383-1391.
- Pfleeger, T., H. Ratsch, and R. Shimabuku. 1993. A review of terrestrial
plants as biomonitors. Pages 317-330 in J. Gorsuch, J. Dwyer, C. Ingersoll
and T. La Point, editors. Environmental Toxicology and Risk Assessment,
2nd Vol. ASTM STP 1216. ASTM, Philadelphia.
- Fletcher, J.S., T.G. Pfleeger, and H.C. Ratsch. 1993. Potential environmental
risks associated with the new sulfonylurea herbicides. Environ. Sci.
Technol. 27:2250-2252.
- Pfleeger, T., J. Fletcher, and H. Ratsch. 1992. Effects of Glean, a sulfonylurea
herbicide, on the reproductive biology and fruit set in cherry trees. U.S.
Environmental Protection Agency. EPA/600/R-92/020.
- Pfleeger, T.G., J.C. McFarlane, R. Sherman, and G. Volk. 1991. A short-term
bioassay for whole plant toxicity. Pages 355-364 in J.W. Gorsuch, W.R. Lower,
M.A. Lewis and W. Wang, editors, Plants for Toxicity Assessment: 2nd vol.
ASTM STP 1115. ASTM, Philadelphia.
- McFarlane, C., T. Pfleeger, and J. Fletcher. 1990. Effect, uptake and disposition
of nitrobenzene in several terrestrial plants. Environ. Tox. & Chem. 9:512-520.
- Fletcher, J.S., J.C. McFarlane, T. Pfleeger, and C. Wickliff. 1990. Influence of
root exposure concentration on the fate of nitrobenzene in soybean.
Chemosphere 20:513-523.
- McFarlane, C., and T. Pfleeger. 1987. Plant exposure chambers for the study
of toxic/plant interactions. J. Environ. Qual. 16(4):361-371.
- McFarlane, C., T. Pfleeger, and J. Fletcher. 1987. Transpiration effect on the
uptake and distribution of bromacil, nitrobenzene, and phenol in soybean
plants. J. Environ. Qual. 16(4):372-376.
- McFarlane, J.C., C. Nolt, C. Wickliff, T. Pfleeger, R. Shimabuku, and M. McDowell. 1987. The uptake, distribution and metabolism of four organic chemicals by soybean plants and barley roots. Environ. Tox. Chem. 6:847-856.