USDA Forest Service    

George D. Aiken Forestry Sciences Lab - Burlington, Vermont

 The Role of Environmental Stress on Tree Growth and Development
 Ecological Processes: A Basis for Managing Forests and Water Quality in New England
 Integrating Social and Biophysical Sciences for Natural Resource Management
 NED Software

Northeastern Research Station



 For Kids

Evaluate Our Service
We welcome your comments on our service and your suggestions for improvement.

 George D. Aiken Forestry Sciences Lab                        705 Spear Street  South Burlington, Vermont 05403

(802) 951-6771

 United States Department of Agriculture Forest Service. USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.

Education | Experience | Selected Publications | Current Grants | Back

Mark J. Twery


    Ph.D., 1987, Yale University, School of Forestry & Environmental Studies, Silviculture
    M.S., 1983, University of Massachusetts at Amherst, Forest Ecology
    A.B., 1972, Oberlin College, Theater Arts


  • Project Leader - USDA Forest Service, Burlington, VT, 1994 to present
  • Director’s Representative - USDA Forest Service, Burlington, VT, 1996 to present
  • Research Forester - USDA Forest Service, Morgantown, WV, 1988 to 1994
  • Adj. Asst. Professor - West Virginia University, Morgantown, WV, 1991 to present
  • User Support Specialist - Yale University Computer Ctr., New Haven CT, 1984 to 1988
  • Instructor, Part-time - Yale University, New Haven, CT, 1984 to 1986

  • Selected Publications

    Twery, Mark J. 1997. Review of "The literature of forestry and agroforestry". The Quarterly Review of Biology. 72(1): 72.

    Palmer, James F.; Twery, Mark J. 1996. NED: a user controlled decision-support system for forest recreation environments. In: Thompson, Jerrilyn Lavarre; Lime, David W.; Gartner, Bill; Sames, Wayne M., comps. Proceedings of the 4th international outdoor recreation & tourism trends symposium & the 1995 national recreation resource planning conference; 1995 May 14-17; St. Paul, MN. St. Paul, MN: University of Minnesota, College of Natural Resources and Minnesota Extension Service: 376-380.

    Twery, Mark J. 1996. Innovative techniques for integrating objectives for ecosystem management: the Northeast Decision Model. In: Kohl, Michael; Gertner, George Z., eds. Caring for the forest: research in a changing world. Statistics, mathematics and computers: proceedings of the meeting of IUFRO XX World Congress; 1995 August 6-12; Tampere, Finland. Birmensdorf, Switzerland: Swiss Federal Institute for Forest, Snow and Landscape Research: 183-188.

    Twery, Mark J.; Gottschalk, Kurt W. 1996. Forest health: another fuzzy concept. Journal of Forestry. 94 (8): 20.

    Alban, L. M. S. A. Thomasma, M. J. Twery. 1995. Forest Stewardship Planning Guide - Version 1.00, Users Manual. Gen. Tech. Rpt. NE-203. Radnor, PA: USDA Forest Service, Northeastern Forest Experiment Station.

    Kollasch, R. P. and M. J. Twery. 1995. Object-Oriented System Design for Natural Resource Decision Support: The Northeast Decision Model. AI Applications 9(3): 73-84.

    Simpson, B. T., R. P. Kollasch, M. J. Twery, T. M. Schuler. 1995. NED/SIPS User’s Manual - Northeast Decision Model Stand Inventory Processor and Simulator - Version 1.00. USDA Forest Service. Gen. Tech. Rpt. NE-205.

    Twery, Mark J. 1994. Meeting tomorrow's challenges in silvicultural prescriptions: The Northeast Decision Model. In: Proceedings, 1993 SAF National Convention. Indianapolis, IN, November 7-10, 1993. Bethesda, MD: Society of American Foresters.

    Twery, Mark J. 1993. Design and development of the Northeast Decision Model. The Compiler. 11(2):14-18.

    Twery, Mark J. 1992. The Northeast Decision Model. p 127-130. In: Proceedings, 20th Annual Hardwood Symposium. Cashiers, NC, 1 - 3 June, 1992. Memphis: Hardwood Research Council.

    Twery, M.J., G.A. Elmes, and C.B. Yuill. 1991. Scientific Exploration with an Intelligent GIS: Predicting Species Composition from Topography. AI Applications in Natural Resource Management 5(2):45-53.

    Twery, M.J., G.N. Mason, P.M. Wargo, and K.W. Gottschalk. 1990. Abundance and distribution of rhizomorphs of Armillaria spp. in defoliated mixed oak stands in western Maryland. Can. J. Forest Res. 20(6):674-678.

    Twery, M.J. 1990. Effects of defoliation by gypsy moth. P. 27-39 In Proceedings: 1990 USDA Interagency Gypsy Moth Research Review, January 22-25, 1990, E. Windsor, CT. GTR-NE-146: Radnor, PA.

    Gottschalk, K.W., Gansner, D.A., Twery, M.J. 1989. Impacts of gypsy moth on oak timber resources, or will there be oak in 2001? IN Proceedings of the 17th Annual Hardwood Research Council Symposium, May 8-10, 1989, Merrimac, WI.

    Twery, M.J. 1987. Changes in vertical distribution of xylem production in hardwoods defoliated by gypsy moth. Ph.D. Dissertation, Yale University. 96 p.

    Kelty, M.J., E.M. Gould, Jr. and M.J. Twery. 1987. Effects of understory removal in hardwood stands. North. J. Appl. For. 4(3):162-164.

    Twery, M.J. and W.A. Patterson III. 1984. Variations in beech bark disease and its effects on species composition and structure of northern hardwood stands in central New England. Can. J. For. Res. 14(4):565-574.

    Current Grants

    $51,300 - 1996-1998, NOAA Global Programs: “An Integrated Assessment of the Social and Economic Effects of Extreme Climatic Fluctuations on Forests in the Northeast United States” (Co-principal investigator on project totaling $532,000.)

    Top of Page | Education | Experience | Selected Publications | Current Grants | Back


Disclaimers | Privacy Notice