Northern Research Station
11 Campus Blvd., Suite 200
Newtown Square, PA 19073
(610) 557-4017
(610) 557-4132 TTY/TDD
![[image:] William McWilliams](https://webarchive.library.unt.edu/eot2008/20090305011933im_/http://nrs.fs.fed.us/local-resources/images/people/wmcwilliams.jpg)
William McWilliams
Title: Research Forester
Unit: Forest Inventory & Analysis
Previous Unit: Forest Inventory & Analysis
Address: Northern Research Station
11 Campus Blvd., Suite 200
Newtown Square, PA 19073
Phone: 610-557-4050
E-mail: Contact William McWilliams
Education
- Dual-title M.S., Forest Science and Operations Research, Pennsylvania State, 1983
- B.S., Economics and Business Administration, Drexel University, 1977
Civic & Professional Affiliations
Society of American Foresters, Ecological Society of America
Current Research
My research is directed towards conducting landscape-level studies of cutting disturbance, tree mortality, regeneration, and other factors affecting forest extent, composition, and sustainability. Currently, I am focusing on the analysis of results for the recent inventory of Maine and Pennsylvania. For the longer term, I hope to enhance ecological inventory and classification approaches by integrating remote sensing, GIS, and database management into a flexible system for understanding changes in forest resources and their associated spatial distribution. The impact of urbanization, parcelization, fragmentation, and land-use change complicate our ability to assess effects on composition and structure. Improved approaches will enhance our ability to construct forest community profiles based on accepted ecological criteria. I also hope to design and implement improved techniques for inventory of forested ecosystems.
Why is This Important
Knowledge of the health and sustainability of forested ecosystems at the landscape level is limited to traditional methodologies. Contemporary policy and management decisions require more timely, relevant and conclusive information that is spatially explicit. Quantitative analysis of FIA used in conjunction with auxiliary information provides the opportunity improve decisions that impact forest land and ultimately, human health and well being.
Future Research
- Forest resource assessment
- Understory-overstory relationships and the impact of invasive species
- Eco-resource Projections
Featured Publications
- Moser, W. Keith; Hansen, Mark H.; Nelson, Mark D.; McWilliams, William H. 2009. Relationship of invasive groundcover plant presence to evidence of disturbance in the forests of the upper midwest of the United States. Chapter 3.
- McWilliams, William H. 2008. Pennsylvania's Forest Resources, 2006
- McWilliams, William H.; Cassell, Seth P.; Alerich, Carol L.; Butler, Brett J.; Hoppus, Michael L.; Horsley, Stephen B.; Lister, Andrew J.; Lister, Tonya W.; Morin, Randall S.; Perry, Charles H.; Westfall, James A.; Wharton, Eric H.; Woodall, Christopher W. 2007. Pennsylvania's Forest 2004
- McRoberts, Ronald E.; Reams, Gregory A.; Van Deusen, Paul C.; McWilliams, William H., eds. 2007. Proceedings of the seventh annual forest inventory and analysis symposium
- Moser, W. Keith; Hansen, Mark; McWilliams, William H.; Sheffield, Raymond M. 2007. Shortleaf pine composition and structure in the United States
Additional Online Publications
- Moser, W. Keith; Hansen, Mark; McWilliams, Will; Sheffield, Ray. 2006. Oak composition and structure in the eastern United States
- McRoberts, Ronald E.; Reams, Gregory A.; Van Duesen, Paul C.; McWilliams, William H., eds. 2006. Proceedings of the sixth annual forest inventory and analysis symposium
- Rudis, Victor A.; Gray, Andrew; McWilliams, William; O'Brien, Renee; Olson, Cassandra; Oswalt , Sonja; Schulz, Beth. 2006. Regional Monitoring of Nonnative Plant Invasions With the Forest Inventory and Analysis Program
- McWilliams, William H.; Bowersox, Todd W.; Brose, Patrick H.; Devlin, Daniel A.; Finley, James C.; Gottschalk, Kurt W.; Horsley, Steve; King, Susan L.; LaPoint, Brian M.; Lister, Tonya W.; McCormick, Larry H.; Miller, Gary W.; Scott, Charles T.; Steele, Harry; Steiner, Kim C.; Stout, Susan L.; Westfall, James A.; White , Robert L. 2005. Measuring Tree Seedlings and Associated Understory Vegetation in Pennsylvania's Forests
- Lister, Andrew; Riemann, Rachel; Lister, Tonya; McWilliams, Will. 2005. Northeastern Regional Forest Fragmentation Assessment: Rationale, Methods, and Comparisons With Other Studies
- McRoberts, Ronald E.; Reams, Gregory A.; Van Deusen, Paul C.; McWilliams, William H., eds. 2005. Proceedings of the fifth annual forest inventory and analysis symposium
- McRoberts, Ronald E.; Reams, Gregory A; Van Deusen, Paul C.; McWilliams, William H.; Cieszewski, Chris J., eds. 2005. Proceedings of the fourth annual Forest Inventory and Analysis symposium
- McWilliams, William H.; Butler, Brett J.; Caldwell, Laurence E.; Griffith, Douglas M.; Hoppus, Michael L.; Laustsen, Kenneth M.; Lister, Andrew J.; Lister, Tonya W.; Metzler, Jacob W.; Morin, Randall S.; Sader, Steven A.; Stewart, Lucretia B.; Steinman, James R.; Westfall, James, A.; Williams, David A.; Whitman, Andrew; Woodall, Christopher W. 2005. The forests of Maine: 2003
- McWilliams, William H.; Alerich, Carol A.; Devlin, Daniel A.; Lister, Andrew J.; Lister, Tonya W.; Sterner, Stephen L.; Westfall, James A. 2004. Annual inventory report for Pennsylvania's forests: results from the first three years
- Luppold, William; McWilliams, William H. 2004. Avoiding Spurious Conclusions from Forest Service Estimates of Timber Volume, Growth, Removal, and Mortality
- McWilliams, William H.; Bowersox, Todd W.; Brose, Patrick H.; Devlin, Daniel A.; Finley, James C.; Horsley, Steve; Gottschalk, Kurt W.; Lister, Tonya W.; McCormick, Larry H.; Miller, Gary W.; Steiner, Kim C.; Stout, Susan L.; Westfall, James A.; White, Robert L. 2004. Indicators of regenerative capacity for eastern hardwood forests
- McWilliams, William H.; Bowersox, Todd W.; Brose, Patrick H.; Devlin, Daniel A.; Finley, James C.; Horsley, Steve; Gottschalk, Kurt W.; King, Susan L.; Lister, Tonya W.; McCormick, Larry H.; Miller, Gary W.; Scott, Charles T.; Steiner, Kim C.; Stout, Susan L.; Westfall, James A.; White, Robert L. 2003. Indicators of regenerative capacity for native broadleaf forests: a case study of ungulate overpopulation in the Eastern United States
- Schmidt, Thomas L.; McWilliams, William H. 2003. Shifts and future trends in the forest resources of the Central Hardwood Region
- Schmidt, Thomas L.; McWilliams, William H. 2003. Shifts and future trends in the forest resources of the Central Hardwood region
- McWilliams, William H.; Alerich, Carol A.; Devlin, Daniel A.; Lister, Tonya W.; Sterner, Stephen L.; Westfall, James A. 2002. Annual inventory report for Pennsylvania's forests: results from the first two years.
- LeDoux, Chris B.; Sendak, Paul E.; McWilliams, William H.; Huyler, Neil; Malecek, Thomas; Muzzey, Worthen; Jones, Toni. 2001. Timber supply and demand assessment of the Green and White Mountain National Forests' market area
- McWilliams, William H.; Schmidt, Thomas L. 2000. Composition, structure, and sustainability of hemlock ecosystems in eastern North America
- McWilliams, William H.; Heath, Linda S.; Reese, Gordon C.; Schmidt, Thomas L. 2000. Forest resources and conditions
- McWilliams, William H.; Arner, Stanford L.; Barnett, Charles J. 1997. Summary of mortality statistics and forest health monitoring results for the Northeastern United States
- McWilliams, William H.; White, Robert; Arner, Stanford L.; Nowak, Christopher, A.; Stout, Susan L. 1996. Characteristics of Declining Forest Stands on the Allegheny National Forest
- Worthington, Virginia E.; LeDoux, Chris B.; McWilliams, William H.; Sloan, Hank; Jones, Toni. 1996. Methodology for assessing current timber supplies and product demands
- Stout, Susan L.; Nowak, Christopher A.; Redding, James A.; White, Robert; McWilliams, William H. 1995. Allegheny National Forest health
- McWilliams, William H.; Bowersox, Todd W.; Gansner, David A.; McCormick, Larry H.; Stout, Susan L. 1995. Landscape-level regeneration adequacy for native hardwood forests of Pennsylvania
- McWilliams, W. H.; Stout, S. L.; Bowersox, T. W.; McCormick, L. H. 1993. An assessment of advance regeneration and herbaceous communities in Pennsylvania forests
- Birch, T. W.; Gansner, D. A.; McWilliams, W. H. 1993. Central hardwood forests: recent trends in a robust resource
- McWilliams, W. H.; Riemann Hershey, R.; Drake, D. A.; Alerich, C. L. 1993. Characterizing forest composition of the Allegheny Mountains using extensive forest inventory data
Last Modified: 11/19/2008