William Leak
Title: Research Forester
Unit: Center for Research on Ecosystem Change
Address: Northern Research Station
271 Mast Road
Durham, NH 03824
Phone: 603-868-7655
E-mail: Contact William Leak
Jump to Publications
Education
- M.F. 1956 Forest Management--NY State College of Forestry, Syracuse, NY
- B.S. 1953 Forestry--NY State College of Forestry, Syracuse, NY
Civic & Professional Affiliations
- Fellow, Society of American Foresters
- NH Timberland Owners Association
Current Research
Large-scale, longterm timber/wildlife management studies in northern hardwoods/hemlock. Forest landtyping/succession.
Featured Publications
- Leak, William B.; Yamasaki, Mariko. 2013. Regeneration of upper-elevation red oak in the White Mountains of New Hampshire. Res. Note NRS-161. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 5 p.
- Leak, William B.; Yamasaki, Mariko. 2012. 80 Years of thinning research on northern hardwoods in the Bartlett Experimental Forest, New Hampshire. Res. Pap. NRS-20. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 8 p.
- Hoover, Coeli M.; Leak, William B.; Keel, Brian G. 2012. Benchmark carbon stocks from old-growth forests in northern New England, USA. Forest Ecology and Management. 266: 108-114.
- Leak, William B.; Yamasaki, Mariko. 2012. Historical (1899) age and structural characteristics of an old-growth northern hardwood stand in New York State. Res. Note NRS-144. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 11 p.
- Leak, William B.; Yamasaki, Mariko. 2012. Tree species migration studies in the White Mountains of New Hampshire. Res. Pap. NRS-19. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 8 p.
Additional
Online Publications
- Leak, William B. 2011. Estimating allowable-cut by area-scheduling. Res. Note NRS-115. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 4 p.
- Leak, William B. 2011. Historical (1749-1899) vs. present-day sugar maple and beech diameter growth in the northeast. Res. Pap. NRS-16. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 4 p.
- Leak, William B.; Yamasaki, Mariko. 2011. The Bartlett Experimental Forest, Its first 75 years. NRS-INF-12-11. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 21 p.
- Leak, William B.; Yamasaki, Mariko. 2010. Seventy-year record of changes in the composition of overstory species by elevation on the Bartlett Experimental Forest. Res. Pap. NRS-13. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 12 p.
- Fast, Andrew J.; Ducey, Mark J.; Gove, Jeffrey H.; Leak, William B. 2008. Dating tree mortality using log decay in the White Mountains of New Hampshire. Northern Journal of Applied Forestry. 25(3): 154-157.
- Sendak, Paul E.; Leak, William B. 2008. Early crop-tree release and species cleaning in young northern hardwoods: a financial analysis. Res. Pap. NRS-6. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 13 p.
- Leak, William B.; Gove, Jeffrey H. 2008. Growth of northern hardwoods in New England: a 25-year update. Northern Journal of Applied Forestry. 25(2): 103-105.
- DeGraaf, Richard M.; Lester, Anna M.; Yamasaki, Mariko; Leak, William B. 2007. Visual simulations of forest wildlife habitat structure, change, and landscape context in New England. Northern Journal of Applied Forestry. 24(3): 218-226.
- Leak, William B. 2006. Fifty-year impacts of the beech bark disease in the Bartlett Experimental Forest, New Hampshire. Nourthern Journal of Applied Forestry 23(2):141-143
- Sendak, Paul E.; Frank, Robert M.; Leak, William B. 2006. Long-term data from silvicultural studies: interpreting and assessing old records for economic insights. In: Irland, Lloyd C.; Camp, Ann E.; Brissette, John C.; and Donohew, Zachary R., eds. Long-term Silvicultural & Ecological Studies: Results for Science and Management. New Haven, CT: Yale University: 203-207
- Yamasaki, Mariko; Leak, William B. 2006. Snag longevity in managed northern hardwoods. Northern Journal of Applied Forestry 23(3):215-217
- Leak, William B. 2005. Effects of Small Patch Cutting on Sugar Maple Regeneration in New Hampshire Northern Hardwoods. Northern Journal of Applied Forestry. 22(1): 68-70.
- Innes, J. C.; Ducey, M. J.; Gove, J. H.; Leak, W. B.; Barrett, J. P. 2005. Size-density metrics, leaf area, and productivity in eastern white pine. Canadian Journal of Forest Research 35:2469-2478
- Desmarais, Kenneth M.; Leak, William B. 2005. Ten-Year Performance of Eastern White Pine - under a Crop Tree Release Regime on an Outwash Site. Northern Journal of Applied Forestry. 22(2): 139-142.
- Leak, William B. 2004. Diameter Growth in Even- and Uneven-Aged Northern Hardwoods in New Hampshire Under Partial Cutting. Northern Journal of Applied Forestry. 21(3): 160-163.
- Leak, William B. 2003. Best density and structure for uneven-aged northern hardwood management in New England. Northern Journal of Applied Forestry. 20(1): 43-44.
- Leak, William B. 2003. Regeneration of Patch Harvests in Even-Aged Northern Hardwoods in New England. Northern Journal of Applied Forestry. 20(4): 188-189.
- Leak, William B.; Sendak, Paul E. 2002. Changes in species, grade, and structure over 48 years in a managed New England northern hardwood stand. Northern Journal of Applied Forestry. 19(1): 25-27.
- Solomon, Dale S.; Leak, William B. 2002. Modeling the regeneration of northern hardwoods with FOREGEN. Res. Pap. NE-719. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northeastern Research Station. 9 p.
- Leak, William B. 2002. Origin of sigmoid diameter distributions. Res. Pap. NE-718. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northeastern Research Station. 10 p.
- Zhang, Lianjun; Gove, Jeffrey H.; Liu, Chuangmin; Leak, William B. 2001. A finite mixture of two Weibull distributions for modeling the diameter distributions of rotated-sigmoid, uneven-aged stands. Canadian Journal of Forest Research. 31: 1654-1659.
- Solomon, Dale S.; Leak, William B. 2000. Growth and stocking of eastern hemlock (Tsuga canadensis) in New England. In: McManus, Katherine A.; Shields, Kathleen S.; Souto, Dennis R., eds. Proceedings: Symposium on sustainable management of hemlock ecosystems in eastern North America. Gen. Tech. Rep. NE-267. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 43-49.
- Costello, Christine A.; Yamasaki, Mariko; Pekins, Peter J.; Leak, William B.; Neefus, Christopher D. 2000. Songbird response to group selection harvests and clearcuts in a New Hampshire northern hardwood forest. Forest Ecology and Management. 127: 41-54.
- Leak, William B.; Yamasaki, Mariko; Kittredge, David B., Jr.; Lamson, Neil I.; Smith, Marie-Louise. 1997. Applied ecosystem management on nonindustrial forest land. . Gen. Tech. Rep. NE-239. Radnor, PA: U. S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 30 p.
- Nowak, Chris; Stout, Susan; Stout, Susan; Brissette, John; Brissette, John; Kenefic, Laura; Kenefic, Laura; Miller, Gary; Miller, Gary; Leak, Bill; Leak, Bill; Yaussy, Dan; Schuler, Tom; Gottschalk, Kurt; Gottschalk, Kurt. 1997. Defining the role of silvicultural research in the Northeastern Forest Experiment Station. In: Communicating the role of silviculture in managing the national forests: Proceedings of the National Silviculture Workshop. 1997 May 19-22; Warren, PA.: Gen. Tech. Rep. NE-238. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 115-122.
- Solomon, Dale S.; Leak, William B. 1996. Evaluation of methodology for detecting/predicting migration of forest species. In: Hom, John; Birdsey, Richard; O'Brian, Kelly, eds. Proceedings 1995 meeting of the northern global change program; Gen. Tech. Rep. NE-214. Radnor, PA: U. S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station: 175-182.
- Leak, William B.; Cullen, J.B.; Frieswyk, Thomas S. 1995. Dynamics of whlte pine in New England. Res. Pap. NE-699. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 8 p.
- Solomon, Dale S.; Herman, David A.; Leak, William B. 1995. FIBER 3.0: An Ecological Growth Model for Northeastern Forest Types. Gen. Tech. Rep. NE-204. Radnor, PA: U. S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 24 p.
- Solomon, Dale S.; Leak, William B. 1994. Migration of tree species in New England based on elevational and regional analyses. Res. Pap. NE-688. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 9 p.
- Leak, William B.; Graber, Raymond E. 1993. Six-year beechnut production in New Hampshire. Res. Pap. NE-677. Radnor, PA: US. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 6 p.
- Hornbeck, J.W.; Leak, W.B. 1992. Ecology and management of northern hardwood forests in New England. Gen. Tech. Rep. NE-159. Radnor, PA: U. S. Department of Agriculture, Forest Service, Northeastern Forest Experiment 44 p.
- DeGraaf, Richard M.; Yamasaki, Mariko; Leak, William B.; Lanier, John W. 1992. New England wildlife: management forested habitats. Gen. Tech. Rep. NE-144. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 271 p.
- Graber, Raymond E.; Leak, William B. 1992. Seed fall in an oldgrowth northern hardwood forest. Res. Pap. NE-663. Radnor, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 11 p.
- Leak, W.B. 1987. Characteristics of Five Climax Stands in New Hampshire. Res. Note NE-336. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 5 p.
- Leak, William B.; Solomon, Dale S.; DeBald, Paul S. 1987. Silvicultural guide for northern hardwood types in the Northeast (revised). Res. Pap. NE-603. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 36 p.
- Solomon, Dale S.; Leak, William B. 1986. Simulated yields for managed northern hardwood stands. Res. Pap. NE-578. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 24 p.
- Leak, William B. 1985. Relationships of tree age to diameter in old-growth northern hardwoods and spruce-fir. Res. Note NE-329. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 4 p.
- Leak, W. B.; Tubbs, C. H. 1983. Percent crown cover tables for applying the shelterwood system in New England. Research Note NE-313. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 4p.
- Leak, William B. 1983. Stocking, growth, and habitat relations in New Hampshire hardwoods. Res. Pap. NE-523. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiement Station. 11p.
- Leak, William B. 1982. Habitat mapping and interpretation in New England. Res. Pap. NE-496. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 28p.
- Leak, William B. 1980. Rapid economic analysis of northern hardwood stand improvement options. Research Note NE-296. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 6 p.
- Leak, William B. 1979. Effects of habitat on stand productivity in the White Mountains of New Hampshire. Res. Pap. NE-452. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 8p.
- Leak, William B.; Riddle, Jane R. 1979. Why trees grow where they do in New Hampshire Forests. NE-INF-37-79. Broomall, Pennsylvania: U.S. Department of Agriculture, Forest Service, Northeastern Research Station. 26p.
- Lancaster, Kenneth F.; Leak, William B. 1978. A silvicultural guide for white pine in the northeast. Gen. Tech. Rep. NE-41. Broomall, PA: U. S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 13 p.
- Leak, W. B. 1978. Relationship of Species and Site Index to Habitat in the White Mountains of New Hampshire. Res. Pap. NE-397. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 9p.
- Leak, William B. 1978. Relationships of forest vegetation to habitat on two types of glacial drift in New Hampshire. Research Note NE-257. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 5 p.
- Leak, W. B. 1976. Relation of Tolerant Species to Habitat in the White Mountains of New Hampshire. Res. Pap. NE-351. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 10p.
- Leak, W. B.; Solomon, Dale S. 1975. Influence of residual stand density on regeneration of northern hardwoods. Res. Pap. NE-310. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 7p.
- Leak, William B.; Martin, C. Wayne. 1975. Relationship of stand age to streamwater nitrate in New Hampshire. Research Note NE-211. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 5p.
- Leak, William B.; Filip, Stanley M. 1975. Uneven-aged management of northern hardwoods in New England. Res. Pap. NE-332. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 15p.
- Leak, William B.; Graber, Raymond E. 1974. Forest vegetation related to elevation in the White Mountains of New Hampshire. Res. Pap. NE-299. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 7p.
- Leak, William B. 1974. Some effects of forest preservation. Research Note NE-186. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 4p.
- Philbrook, James S.; Barrett, James P.; Leak, William B. 1973. A stocking guide for eastern white pine. Research Note NE-168. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 3p.
- Leak, W. B. 1973. Species and structure of a virgin northern hardwood stand in New Hampshire. Research Note NE-181. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 4p.
- Leak, William B.; Filip, Stanley M. 1970. Cutting strategies and timber yields for unbalanced even-aged northern hardwood forests. Res. Pap. NE-153. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 19 p.
- Leak, William B. 1970. Some preliminary estimates of energy utilization in even-aged northern hardwoods. Research Note NE-108. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 7p.
- Leak, William B.; Allen, Peter H.; Barrett, James P.; Beyer, Frank K.; Mader, Donald L.; Mawson, Joseph C.; Wilson, Robert K. 1970. Yields of eastern white pine in New England related to age, site and stocking. Res. Pap. NE-176. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 15 p.
- Leak, William B.; Solomon, Dale S.; Filip, Stanley M. 1969. A silvicultural guide for northern hardwoods in the northeast. Res. Pap. NE-143. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 34 p.
- Leak, William B. 1968. Birch regeneration: a stochastic model. Research Note NE-85. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 7p.
- Leak, William B.; Filip, Stanley M.; Solomon, Dale S. 1968. Rates of value increase for yellow birch in New England. Res. Pap. NE-120. Upper Darby, PA: U. S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 11 p.
- Leak, William B. 1964. Estimating maximum allowable timber yields by linear programming. Res. Pap. NE-17. Upper Darby, PA: U. S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 9 p.
- Leak, William B. 1963. Effects of Seedbed, Overstory, and Understory on White Ash regeneration. Res. Pap. NE-2. Upper Darby, PA: U. S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 13 p.
- Filip, Stanley M.; Leak, William B. 1962. Profitable woodlot management in New England. Station Paper NE-170. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 17 p.
- Leak, William B. 1961. Development of second-growth northern hardwoods on Bartlett Experimental Forest - a 25-year record. Station Paper NE-155. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 1-8
- Filip, Stanley M.; Marquis, David A.; Leak, William B. 1960. Development of old-growth northern hardwoods on Bartlett Experimental Forest - a 22-year record. Station Paper NE-135. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 7 p.
- Leak, William B.; Wilson, Robert W., Jr. 1958. Regeneration after cutting of old-growth northern hardwoods in New Hampshire. Station Paper NE-103. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 1-8
- Leak, William B. 1958. Silvical characteristics of sweet birch (Betula lenta). Station Paper NE-113. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 14 p.
Last Modified:
02/15/2012