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Forest Biology and Management

Urban/Wildlife Interface

During the previous two decades, numerous vacation and permanent homes have been built within forested areas of the southern Rocky Mountains. Landowners adopted and continued to adhere to a philosophy of hands-off approach regarding vegetation management of their properties. Simultaneously, these landowners have seen dramatic increases in wild land fire risks, reductions in wildlife populations and diversity, and finally reductions in overall forest health including increasing numbers of unhealthy trees and lack of forest floor vegetation. In cooperation with the New Mexico Division of Forestry and the New Mexico Stewardship Program, Stewardship Incentives Program, the Mora Research Center has initiated research and demonstration residential sites in several areas in San Miguel County, New Mexico. Sites were selected to reflect the range of forest and topographic conditions where residences occur. Goals of the management treatments include protecting residences from wildfire, improving wildlife habitat and improving overall forest health on the property.

Silviculture/Forest Management

Research has focused on management and establishment issues in pinon/juniper woodlands, ponderosa pine and mixed coniferous forests, eldarica pine plantations and temperate pine forests in northern Mexico. Topics investigated include forest pathology and entomology, site productivity estimates, reproductive biology of pine species, management of pinon pine for ornamentals, Christmas trees, nut production, nut size and sustainability, methodology for leaf-area determination, mistletoe water relations, crop improvement through biotechnology, practices for controlling non-point pollution, improving semi-arid land for forestry, germination and field establishment of juniper and eldarica pine reproductive physiology, water relations and irrigation management.

Silviculture/Forest Management Research Publications

Fisher, J.T., P.A. Glass and J.T. Harrington. 1996. Temperate pines of northern Mexico: Their use, abuse, and regeneration. In: Proc. Biodiversity and Management of the Madrean Archipelago: The Sky Islands of Southwestern United States and Northwestern Mexico Conf. Sep.19-23, 1994, Tucson, AZ. USDA For. Ser. Gen. Tech. Rep. RM-GTR-264. Pp.165-173.

Harrington, J.T., J. Fitch and P.A. Glass. 1995. Tres Piedras pinon-juniper silviculture: A partnership project between the USDA Forest Service and New Mexico State University. In: Proc. Desired Future Conditions for Pinon-Juniper Ecosystems Conf. Aug. 8-12, 1994, Flagstaff, AZ. USDA Forest Service Gen. Tech. Rep. RM-258. Pp.184-190.

Mexal, J.G. and J.T. Fisher. 1994. Pinon-juniper woodlands in New Mexico: An unrealized potential. New Mexico Journal of Science 34: 89-102.

Cunningham, G., J.T. Fisher and J.G. Mexal. 1993. Establishing research management and harvest areas from pinon nut production. In Proc. Managing Pinon-Juniper Ecosystems for Sustainability and Social Needs, April 26-30, 1993, Santa Fe, NM. Pp. 85-88.

Mexal, J.G. 1993. Sustainable pinon-juniper ecosystems. Oxymoron or blue-print for the future? In: Managing Pinon-Juniper Ecosystems for Sustainability and Social Needs, Santa Fe, NM. USDA Forest Service, Gen. Tech. Rep. RM-236. Pp. 86-88.

Fisher, J.T. 1992. Nut culture and foreign competition. In: Proc. 1991 Pinon Conf., April 23, 1991, Santa Fe, NM. Pp. 66-68.

Mexal, J.G. 1992. Pinon nut harvesting. In: Proc. 1991 Pinon Conf., April 23, 1991, Santa Fe, NM, Pp. 63 Mexal, J.G., J.T. Fisher and R.D. Pieper. 1992. Forestry and agriculture at the crossroads in the management of P-J woodlands. In: Proc. 1991 Pinon Conf., April 23, 1991, Santa Fe, NM. Pp. 33-41.

Bried, J.W., J.G. Mexal, A.M. Lynch and F.G. Hawksworth. 1991. Shoot growth and development of Douglas-fir and white fir in New Mexico. In: Proc. Interior Douglas-fir. The species and its management, Symposium. Spokane, WA. Washington State University Cooperative Extension Service. Pp.155-160.

Aldon E.F. and J.T. Fisher. 1990. Improving semi-arid land for forestry. In: Proc. 41st Annual Meeting Great Plains Agricultural Council-Forestry Committee, Santa Fe, NM. Great Plains Agricultural Council Pub. No. 130. Pp. 96-101.

Mexal, J.G., J.T. Fisher and R.D. Pieper. 1990. Forestry and agriculture at the crossroads in the management of P-J woodlands. In: Proc. 41st Annual Meeting Great Plains Agricultural Council-Forestry Committee, Santa Fe, NM. Great Plains Agricultural Council Pub. No. 130. Pp. 112-117.

Harrington, J.T., J.G. Mexal and J.T. Fisher. 1989. Seed set and germination of eldarica pine influenced by cone hierarchy. In: Proc. of the Intermountain Forest Nursery Association Meeting, Aug, 14-17, 1989, Bismarck, ND. Pp. 65 -69.

Phillips, R., J.G. Mexal and L.M. English. 1988. Pine tip moth harmful to trees. American Christmas Tree Journal 32: 37,39.

Fisher, J.T., J.G. Mexal and G.C. Phillips. 1987. High value crops from New Mexico pinyon pines. II. Crop improvement through woodland stand management. In: Pinyon-juniper woodlands of New Mexico: A biological and economic appraisal. New Mexico Agricultural Experiment Station Spec. Rep. 73. Pp. 13-24.

Fisher, J.T., J.G. Mexal and R.D. Pieper (Tech. Coords). 1987. Pinyon-juniper woodlands of New Mexico: A biological and economic appraisal. New Mexico Agricultural Experiment Station Spec. Rep. 73. 53 p.

Phillips, G.C., J.T. Fisher and J.G. Mexal. 1987. High value crops from New Mexico pinyon pines. I. Crop improvement through biotechnology. In: Pinyon-juniper woodlands of New Mexico: A biological and economic appraisal. New Mexico Agricultural Experiment Station Spec. Rept. 73. Pp. 39-44.

Neumann, R.W. 1986. Calculating southwestern ponderosa pine site index with an HP-41C calculator. Western Journal of Applied Forestry 1 (4): 127-128.

White, R.W. and J.T. Fisher. 1986. Pinus eldarica Medw. (= P. brutia subsp, eldarica) stomatal conductance response to environmental factors and leaf water potential. In: Proc. 9th North American Forest Biology Workshop, June 15-18, 1986, Stillwater, OK. Pp. 166-174.

White, R.W. and J.T. Fisher. 1985. Assessment of water consumption and productivity of Pinus eldarica Medw. under intensive irrigation management. In: Proc. Symposium on Establishment and Productivity of Tree Plantings in Semi-Arid Regions. April 29-May 2, 1985, Texas A & I University, Kingsville, TX.

White, R.W. and J.T. Fisher. 1985. Seasonal evapotranspiration, growth and water use efficiency by plantation-grown Pinus eldarica Medw. derived from field and non-weighing lysimeter studies. WRRI Rep. No. 193, 54p.

Mayes-F., M.M. 1984. Total Leaf Area Determination in Juvenile Eldarica Pine (Pinus eldarica Medw). M.S. Thesis, New Mexico State University.

Mexal, J.G. and J.T. Fisher. 1984. Seedling nutrition management and forest yield improvement . In: Proc. New Forests for a Changing World; 1983 National Society of American Foresters Conf., Portland, OR. Pp. 415-419.

Fisher, J.T. 1983. Water relations of mistletoes and their hosts. In: Calder, M. and P. Bernhardt (eds.) Biology of Mistletoes. Academic Press, New York. Pp. 161-181.

DeVelice, R.L. and J.T. Fisher. 1982. One-year ponderosa pine produces pollen. Southwestern Naturalist 27: 211-213.

Fisher, J.T. and T. Blush. 1981. A monitoring program to assess silvicultural best management practices for controlling non-point pollution on New Mexico timberlands: Scope of work, Phase I- site selection and calibration. State Division of Forestry, Santa Fe, NM. 9p.

Montano, J.M., J.T. Fisher and R.E. Gomez. 1980. Increase of pinon nut size by basal pruning. HortScience 15: 727-728.

Fisher, J.T., C.P.R. Reid and F.G. Hawksworth. 1979. Water relations of dwarf mistletoes (Arceuthobium spp.). In: Proc . 2nd International Symposium on Parasitic Weeds, July 16-19, 1979, Raleigh, NC. Pp. 34-37.

Fisher, J.T. and J.M. Montano. 1977. Management of pinyon for ornamentals, Christmas trees and nut production. In: Proc. Ecology, Uses and Management of Pinyon-Juniper Woodlands, USDA Forest Service Gen. Tech. Rep. RM-39. Pp. 35-44.

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