Tom Ledig, PhD

Treesearch Publications

• Tom Ledig, Paul D. Hodgskiss, David R. Johnson. 2010. The structure of genetic diversity in Engelmann spruce and a comparison with blue spruce
• Tom Ledig, Gerald Rehfeldt, Cuauhtemoc Saenz-Romero, Flores-Lopez Celestino. 2010. Projections of suitable habitat for rare species under global warming scenarios
• Tom Ledig, Paul D. Hodgskiss, David R. Johnson. 2006. Genetic diversity and seed production in Santa Lucia fir (Abies bracteata),a relict of the Miocene broadleaved evergreen forest
• Juan P. Jaramillo-Correa, Jean Beaulieu, Tom Ledig, Jean Bousqueter. 2006. Decoupled mitochondrial and chloroplast DNA population structure reveals Holocene collapse and population isolation in a threatened Mexican-endemic conifer.
• Tom Ledig, Paul D. Hodgskiss, David R. Johnson. 2005. Genetic diversity, genetic structure, and mating system of brewer spruce (Pinaceae), a relict of the acto-tertiary forest
• Tom Ledig, Paul D. Hodgskiss, Konstanin V. Krutovskii, David B. Neale, Teobaldo Eguiluz-Piedra. 2004. Relationships among the spruces (Picea, Pinaceae) of southwestern North America
• Seok-Woo Lee, Tom Ledig, David R. Johnson. 2002. Genetic variation at allozyme and RAPD markers in Pinus longaeva (Pinaceae) of the White Mountains, California
• Tom Ledig, Paul D. Hodgskiss, Virginia Jacob-Cervantes. 2002. Genetic diversity, mating system, and conservation of a Mexican subalpine relict, Picea mexicana Martínez
• Tom Ledig, Miguel A. Capó-Arteaga, Paul D. Hodgskiss, Hassan Sbay, Celestino Flores-López, M. Thompson Conkle, Basilio Bermejo-Velázquez. 2001. Genetic diversity and the mating system of a rare Mexican Piñon, Pinus pinceana, and a comparison with Pinus maximartinezii (Pinaceae)
• Richard S. Criddle, Thimmappa S. Anekonda, Sharon Tong, John N. Church, Tom Ledig, Lee D. Hansen. 2000. Effects of climate on growth traits of river red gum are determined by respiration parameters
• Tom Ledig. 2000. Founder effects and the genetic structure of coulter pine
• Tom Ledig, Basilio Bermejo-Velázquez, Paul D. Hodgskiss, David R. Johnson, Celestino Flores-López, Virginia Jacob-Cervantes. 2000. The mating system and genic diversity in Martínez spruce, an extremely rare endemic of México’s Sierra Madre Oriental: an example of facultative selfing and survival in interglacial refugia
• Tom Ledig, M. Thompson Conkle, Basilio Bermejo-Velázquez, Teobaldo Eguiluz-Piedra, Paul D. Hodgskiss, David R. Johnson, William S. Dvorak. 1999. Evidence for an extreme bottleneck in a rare Mexican pinyon: genetic diversity, disequilibrium, and the mating system in Pinus maxamartinezii
• Tom Ledig. 1999. Genic diversity, genetic structure, and biogeography of Pinus sabiniana Dougl.
• Tom Ledig, David B. Neale. 1998. World directory of forest geneticists and tree breeders
• Tom Ledig, J. Jesús Vargas-Hernández, Kurt Johnsen. 1998. The conservation of forest genetic resources: case histories from Canada, Mexico, and the United States
• Tom Ledig, Virginia Jacob-Cervantes, Paul D. Hodgskiss. 1997. Recent evolution and divergence among populations of a rare Mexican endemic, Chihuahua spruce, following holocene climatic warming
• Tom Ledig, J.H. Kitzmiller. 1992. Genetic strategies for reforestation in the face of global climate change
• Tom Ledig. 1992. Human impacts on genetic diversity in forest ecosystems
• Connie I. Millar, Tom Ledig, L. A. Riggs. 1990. Conservation of diversity in forest ecosystems
• W.T. Gladstone, Tom Ledig. 1990. Reducing pressure on natural forests through high-yield forestry
• Tom Ledig. 1988. The conservation of diversity in forest trees
• B.M. Emery, Tom Ledig. 1987. Provenance variation in Eucalyptus camaldulensis Dehnh. in California
• Robin M. Bush, Peter E. Smouse, Tom Ledig. 1987. The fitness consequences of multiple-locus heterozygosity: the relationship between heterozygosity and growth rate in pitch pine (Pinus rigida Mill.)
• John E. Kuser, Tom Ledig. 1987. Provenance and progeny variation in pitch pine from the Atlantic Coastal Plain
• Tom Ledig. 1986. Conservation strategies for forest gene resources
• Steven H. Strauss, Tom Ledig. 1985. Seedling architechture and life history evolution in pines
• Steven H. Strauss, Tom Ledig. 1985. Seedling architecture and life history evolution in pines
• Richard B Standiford, Tom Ledig. 1983. Proceedings of a workshop on Eucalyptus in California; June 14-16, 1983; Sacramento, California
• Tom Ledig, M. Thompson Conkle. 1983. Gene diversity and genetic structure in a narrow endemic, torrey pine (Pinus torreyana Parry ex Carr.)
• Tom Ledig, Raymond P. Guries, Barbara A. Bonefeld. 1983. The relation of growth to heterozygosity in pitch pine
• Tom Ledig, Donald R. Korbobo. 1983. Adaptation of sugar maple populations along altitudinal gradients: photosynthesis, respiration, and specific leaf weight
• Tom Ledig. 1983. Eucalypt Improvement for California: Progress and Plans
• Richard B. Standiford, Tom Ledig. 1983. Economic evaluation of Eucalypt energy plantations
• Raymond P. Guries, Tom Ledig. 1982. Genetic diversity and populations structure in pitch pine (Pinus rigida Mill.)
• Tom Ledig, J.L. Whitmore. 1981. Heritability and genetic correlations for volume, foxtails, and other characteristics of Caribbean pine in Puerto Rico
• Tom Ledig, D.M. Smith. 1981. The influence of silvicultural practices on genetic improvement: height growth and weevil resistance in eastern white pine
• Raymond P. Guries, Tom Ledig. 1981. Genetic structure of populations and differentiation in forest trees
• Allen P. Drew, Tom Ledig. 1981. Seasonal patterns of CO₂ exchange in the shoot and root of loblolly pine seedlings
• Tom Ledig, Richard L Porterfield. 1981. West Coast tree improvement programs: a break-even, cost-benefit analysis
• A.P. Drew, Tom Ledig. 1980. Episodic growth and relative shoot:root balance in loblolly pine seedlings
• S.A.M Manley, Tom Ledig. 1979. Photosynthesis in black and red spruce and their hybrid derivatives: ecological isolation and hybrid adaptive inferiority
• Tom Ledig, Joseph G. Clark, Allen P. Drew. 1977. The effects of temperature treatment on photosynthesis of pitch pine from northern and southern latitudes
• Tom Ledig. 1976. An analysis of methods for the selection of trees from wild stands
• Tom Ledig, A.P. Drew, J.G. Clark. 1976. Maintenance and constructive respiration, photosynthesis, and net assimilation rate in seedlings of pitch pine (Pinus rigida Mill.)
• John H. Fryer, Tom Ledig. 1972. Microevolution of the photosynthetic temperature optimum in relation to the elevational complex gradient
• Tom Ledig, John H. Fryer. 1971. A pocket of variability in Pinus rigida
• Tom Ledig, F. Herbert Bormann, Karl F. Wenger. 1970. The distribution of dry matter growth between shoot and roots in loblolly pine
• Tom Ledig, Robert W. Wilson, John W. Duffield, Gerald Maxwell. 1969. A discriminant analysis of introgression between Quercus prinus L. and Quercus alba L.

• North Carolina State University, Ph.D., Genetics; minor mathematics and statistics, 1967
• North Carolina State University, M.S., Genetics; minor forestry, 1965
• Rutgers University, B.S., Forestry; minor statistics, cumlaude, 1962