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ContributorsJohn B. Sowell

CP LUHNA Author: Upper Gunnison Basin, Colorado

Biology Department
Natural and Environmental Sciences
Western State College
Gunnison, CO 81231
Telephone: (970) 943-2146

E-Mail: jsowell@western.edu

Current Academic Position:
Professor of Biology, Western State College
 
Education:
Ph.D., University of Idaho, 1985.
B.S., University of California, Davis, 1979
 
Research Interests:
Plant physiological ecology, particularly the stresses associated with vegetation boundaries; physiological ecology of alpine timberline; ecotones and vegetation patterns. 
 
 Publications:

Crawford, J.L., S.P. McNulty, J.B. Sowell, and M.D. Morgan. 1998. Changes in aspen communities over 30 years in Gunnison County, Colorado. American Midland Naturalist 140: 197-205.

Schauer, A.J., B.K. Wade, and J.B. Sowell. 1998. Persistence of subalpine forest-meadow ecotones in the Gunnison Basin, Colorado. Great Basin Naturalist 58: 273-281.

Sowell, J.B. 2001. Desert Ecology: An Introduction to Life in the Arid Southwest. University of Utah Press, Salt Lake City.

Sowell, J.B., S.P. McNulty, and B.K. Schilling. 1996. The role of stem recharge in reducing the winter desiccation of Picea engelmannii (Pinaceae) needles at alpine timberline. American Journal of Botany 83: 1351-1355. 

Sowell, J.B. 1987. Influence of low soil temperature on water uptake of subalpine conifers. In: Human Impacts and Management of Mountain Forests. T. Fujimori and M. Kimura, eds., pp. 137-144. Forestry and Forest Products Research Institute, Ibaraki. 

Sowell, J.B. and G.G. Spomer. 1986. Ecotypic variation in root respiration rate among elevational populations of Abies lasiocarpa and Picea engelmannii. Oecologia 68: 375-379.

Sowell, J.B. 1985. A predictive model relating North American plant formations and climate. Vegetatio 60: 103-111.

Sowell, J.B. 1985. Winter water relations of trees at alpine timberline. Swiss Federal Institute of Forestry Research, Reports 270: 71-77.

Sowell, J.B., D.L. Koutnik, and A.J. Lansing. 1982. Cuticular transpiration of whitebark pine (Pinus albicaulis) within a Sierra Nevadan timberline ecotone. Arctic and Alpine Research 14: 97-103.