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photo of Dudley J. RaynalDudley J. Raynal

Distinguished Teaching Professor

401 Illick Hall
1 Forestry Drive
Syracuse, NY 13210

Telephone: (315) 470-6782
Fax: (315) 470-6934
Email: djraynal@esf.edu


EFB 445/645 Plant Ecology (3 credit hours). Two hours of lecture and discussion one laboratory session. A first course in plant community ecology dealing with the dynamics of community development and change and the process of community analysis and description.

EFB 535 Systematic Botany (3 credit hours). Two hours of lecture, three hours of laboratory. Identification, nomenclature, and classification of flowering plants with special emphasis on local flora and developing the ability to classify plants in any region.

  • Course Syllabus
  • Lecture Schedule

EFB 496 Functional Ecology of Adirondack Communities (participant). Experimental, interdisciplinary, or special coursework in biology for undergraduate students. Subject matter and methods of presentation varies from semester to semester.

Research Interests

Investigations in my research group focus on plant population, community and ecosystem ecology. Topics currently being pursued include the ecology and control of invasive plants, historical patterns of forest tree growth, the role of forest herbs in biogeochemical cycling, the influence of nitrogen fixing shrubs on nitrogen dynamics in Adirondack surface waters, characterization of Adirondack wetland ecosystems, relationships between forest condition and water quality in the Catskill Mountains, and influences of atmospheric deposition on Adirondack forests.

Graduate Students

Todd Hurd, Ph.D., Influences of speckled alder on nitrogen dynamics in Adirondack wetlands.

Brian Kiernan, M.S., The abundance of alder in Adirondack wetlands.

Frances Lawlor, M.S., Control of black swallowort in central NY.

Jack Tessier, Ph.D., The role of forest herbs in nutrient cycling.

Cyndi Boesse, M.S., (with Dr. D.J. Leopold) Ecological characteristics of the weed orchid.

Kim Kiernan, M.S., (with Dr. D.J. Leopold) Historical tree growth patterns of Catskill trees

Kemal Gokkaya, N-fixing shrubs in Adirondack wetlands

Selected Publications

Burke, M.K. and D.J. Raynal. 1998. Liming influences growth and nutrient balances in sugar maple seedlings on an acidic forest soil. Environmental and Experimental Botany 39: 105-116.

Raynal, D.J., J.P. Gibbs, N.H. Ringler, and D.J. Leopold. 1998. Ecological surveys: the basis for natural area management. Exercise 21 (pp.141-160) in, J.P Gibbs, M.L. Hunter, and E.J. Sterling (eds.), Problem-solving in conservation biology and wildlife management: exercises for class, field, and laboratory. Blackwell Sciences.

Hurd, T.M., A.R. Brach, and D.J. Raynal. 1998. Responses of understory vegetation of Adirondack forests to nitrogen additions. Can J. For. Res. 28: 799-807.

Raynal, D. J. and D. J. Leopold. 1999. Landowner's guide to state-protected plants of forests in New York State. New York Center for Forestry Research and Development. SUNY College of Environmental Science and Forestry, Syracuse, NY (distributed by Syracuse University Press).

Yorks, T. E., D. J. Leopold, and D. J. Raynal. 2000. Vascular plant propagule banks of six eastern hemlock stands in the Catskill Mountains of New York. J. Torrey Botanical Society 87: 87-93.

Kaya, Z. and D. J. Raynal. 2001. Biodiversity and conservation of Turkish forests. Biological Conservation 97(2): 131-141.

Hurd, T. M., D. J. Raynal, and C. Schwintzer. 2001. Symbiotic N-fixation of Alnus incana spp. rugosa in shrub wetlands of the Adirondack Mountains, New York. Oecologia 126: 94-103.

Tessier, J. T., S. J. McNaughton, and D. J. Raynal. 2001. Influence of nutrient additions and tree seedling density of nutrient uptake by Oxalis acetosella and Acer saccharum. Environmental and Experimental Botany 45: 11-20.

Hall, B. R., D. J. Raynal, and D. J. Leopold. 2001. Environmental influences on plant species composition in groundwater seeps in the Catskill Mountains of New York. Wetlands 21: 125-134.

Driscoll, C. T., K. M. Driscoll, M. J. Mitchell, and D. J. Raynal. 2003. Effects of acidic deposition on forest and aquatic ecosystems in New York State. Environmental Pollution 23: 327-336.

Mitchell, M. J., C. T. Driscoll, S. Inamdar, G. G. McGee, M. O. Mbila, and D. J. Raynal. 2003. Nitrogen biogeochemistry in the Adirondack Mountains of New York: hardwood ecosystems and associated surface waters. Environmental Pollution 123: 355-364.

Kiernan, B. D., T. M. Hurd, and D. J. Raynal. 2003. The influence of Alnus incana ssp. rugosa on inorganic nitrogen in shrub wetlands of the Adirondack Mountains, NY, USA. Environmental Pollution 123: 347-354.

Tessier, J. and D. J. Raynal. 2003. Vernal nitrogen and phosphorus retention by forest understory and microbes. Plant and Soil 256: 443-453.

Tessier, J. and D. J. Raynal. 2003. Use of nitrogen to phosphorus ratios in plant tissue as an indicator of nutrient limitation and nitrogen saturation. J. Applied Ecology 40: 523-534.

Yorks, T. E., D. J. Leopold, and D. J. Raynal. 2003. Effects of Tsuga canadensis mortality on soil water chemistry and understory vegetation: possible consequences of an invasive insect herbivore. Can. J. Forest Research 33: 1525-1537.

Hurd, T. M. and D. J. Raynal. 2004. Comparison of nitrogen solute concentrations within alder (Alnus incana ssp. rugosa) and non-alder dominated wetlands. Hydrol. Proc. 18: 2681-2697.

Gokkyaya, K., T. M. Hurd, and D. J. Raynal. 2004. Symbiont nitrogenase, alder growth, and soil nitrate response to phosphorus addition in alder (Alnus incana ssp. rugosa) wetlands of the Adirondack Mountains, New York State, U.S.A. Environmental and Experimental Botany. In press.