- Project Leader - USDA Forest Service, Burlington, VT, 1994 to
- Director’s Representative - USDA Forest Service, Burlington,
VT, 1996 to present
- Research Forester - USDA Forest Service, Morgantown, WV, 1988
- 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
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
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):
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,
Twery, M.J. 1987. Changes in vertical distribution of xylem production
in hardwoods defoliated by gypsy moth. Ph.D. Dissertation, Yale University.
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.
$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
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