Phone: (206) 543-2789Primary Email:
School of Environmental and Forest Sciences, University of Washington, Box 352100Seattle, WA 98195-2100USA
Link to Personal Web Page
Official position at address above:
Educational Institutions attended:
B.S., Cornell University, 1980Ph.D., Oregon State University, 1987
H. J. Andrews LTER
Mark Harmon, Jerry Franklin, Kari O'Connell, Fred Swanson, Howard Bruner
Forest understory dynamics, plant succession, plant diversity, montane/subalpine meadow ecology
Current Research Projects/Activities:
Long-term studies of plant succession in Douglas-fir forestsEffects of forest management on plant community composition and diversityVegetation response to green-tree retention harvestRole of plant competition during early secondary successionComposition, structure, and dynamics of montane/subalpine meadowsRestoration of dry, montane meadows through prescribed fire and vegetation/fuels managementTemporal variation in understory plant communities
Jones, Chad C.; Halpern, Charles B.; Niederer, Jessica. 2008. Plant succession on gopher mounds in western Cascade meadows: consequences for species diversity and heterogeneity. American Midland Naturalist . 159: 275-286.
(Pub No: 4251)
Haugo, Ryan D.; Halpern, Charles B. 2007. Vegetation responses to conifer encroachment in a western Cascade meadow: a chronosequence approach. Canadian Journal of Botany. 85: 285-298.
(Pub No: 4193)
Lang, Nicole L.; Halpern, Charles B. 2007 . The soil seed bank of a montane meadow: consequences of conifer encroachment and implications for restoration. Canadian Journal of Botany. 85: 557-569.
(Pub No: 4239)
Lutz, James A.; Halpern, Charles B. 2006. Tree mortality during early forest development: a long-term study of rates, causes, and consequences. Ecological Monographs. 76(2): 257-275.
(Pub No: 4017)
Halpern, C. B., D. McKenzie, S. A. Evans, and D. A. Maguire. 2005. Early responses of forest understories to varying levels and patterns of green-tree retention. Ecological Applications 15:175-195.
(Pub No: 50017)
Nelson, C. R., and C. B. Halpern. 2005. Edge-related responses of understory species to aggregated retention harvest in the Pacific Northwest. Ecological Applications 15:196-209.
(Pub No: 50018)
Aubry, K.B., C.B. Halpern, and D.A. Maguire. 2004. Ecological effects of variable-retention harvests in the northwestern United States: the DEMO study. Forest Snow and Landscape Research 78:119-134.
(Pub No: 50019)
Antos, Joseph A.; Halpern, Charles B.; Miller, Richard E.; Cromack, Kermit Jr.; Halaj, Melora G. 2003. Temporal and spatial changes in soil carbon and nitrogen after clearcutting and burning of an old-growth Douglas-fir forest. Res. Pap. PNW-RP-552. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 19 p.
(Pub No: 2771)
Acker, S. A.; Halpern, C. B.; Harmon, M. E.; Dyrness, C. T. 2002. Trends in bole biomass accumulation, net primary production and tree mortality in Pseudotsuga menziesii forests of contrasting age. Tree Physiology. 22: 213-217.
(Pub No: 2824)
Franklin, J. F.; Halpern, Charles B. Pacific Northwest Forests. In: Barbour, Michael G.; Billings, William Dwight, eds. North American terrestrial vegetation. Cambridge, UK: Cambridge University Press; 2000:123-159.
(Pub No: 3553)
McKenzie, Donald; Halpern, Charles B. 1999. Modeling the distributions of shrub species in Pacific Northwest forests. Forest Ecology and Management. 114: 293-307.
(Pub No: 2467)
Miller, Eric A.; Halpern, Charles B. 1998 . Effects of environment and grazing disturbance on tree establishment in meadows of the central Cascade Range, Oregon, USA. Journal of Vegetation Science. 9: 265-282.
(Pub No: 2325)
Halpern, Charles B.; Antos, Joseph A.; Geyer, Melora A.; Olson, Annette M. 1997. Species replacement during early secondary succession: the abrupt decline of a winter annual. Ecology. 78(2): 621-631.
(Pub No: 1890)
Halpern, Charles B.; Spies, Thomas A. 1995. Plant species diversity in natural and managed forests of the Pacific Northwest. Ecological Applications. 5(4): 913-934.
(Pub No: 1526)
Halpern, Charles B.; Smith, Bradley G.; Franklin, Jerry F. 1991. Forest and meadow communities of the Three Sisters Biosphere Reserve. In: Ffolliott, Peter F.; Swank, Wayne T., eds. People and the temperate region: a summary of research in the United States Man and the Biosphere (MAB) Program. Washington, DC: MAB Program, U.S. Department of State: 3-6.
(Pub No: 957)
Halpern, Charles B.; Frenzen, Peter M.; Means, Joseph E.; Franklin, Jerry F. 1990. Plant succession in areas of scorched and blown-down forest after the 1980 eruption of Mount St. Helens, Washington. Journal of Vegetation Science. 1: 181-194.
(Pub No: 1015)
Halpern, Charles B. 1989. Early successional patterns of forest species: interactions of life history traits and disturbance. Ecology. 70(3): 704-720.
(Pub No: 956)
Halpern, Charles B. 1988. Early successional pathways and the resistance and resilience of forest communities. Ecology. 69(6): 1703-1715.
(Pub No: 764)
Music, photography, hiking.
Copyright © 2011 - 2016 Andrews Experimental Forest LTER. All rights reserved