James Roberds
Research Geneticist
23332 Highway 67
Saucier, MS 39547
Phone: 228-832-2747Saucier, MS 39547
james.robereds@usda.gov
Current Research
Analysis of genetic risk in clonal populations of forest tree species; study of dynamical behavior in genetic and population interaction models; genotype-environment interaction theory; analysis of genetic population structure in Cronartium quercuum f. sp. fusiforme.
Education
- M.S. in Forestry, 1965
- NC State University
- B.S. in Forest Management, 1960
- NC State University
Featured Publications and Products
- Selgrade, James F.; Roberds, James H. 2009. Uniqueness of polymorphism for a discrete, selection-migration model with genetic dominance.
- Bishir, John; Roberds, James; Strom, Brian; Wan, Xiaohai. 2009. Documentation and user guides for SPBLOB: a computer simulation model of the join population dynamics for loblolly pine and the southern pine beetle.
- Selgrade, James F.; Roberds, James H. 2007. Global attractors for a discrete selection model with periodic immigration.
- Roberds, James H.; Strom, Brain L. 2006. Repeatability estimates for oleoresin yield measurements in three species of the southern pines.
- Kubisiak, Thomas L.; Roberds, James H. 2006. Genetic structure of American chestnut populations based on neutral DNA markers.
Publications
- Castillo, Ana ; Goldfarb, Barry ; Johnsen, Kurt ; Roberds, James ; Nelson, C. . 2018. Genetic variation in Water-Use Efficiency (WUE) and growth in mature longleaf pine.
- Strom, Brian; Meeker, J. R.; Bishir, J.; Roberds, James; Wan, X. 2016. Southern pine beetle in loblolly pine: simulating within stand interactions using the process model SPBLOBTHIN.
- Selgrade, James F.; Bostic, Jordan West; Roberds, James H. 2009. Dynamical behaviour of a discrete selection-migration model with arbitrary dominance.
- Selgrade, James F.; Roberds, James H. 2005. Results on asymptotic behaviour for discrete, two-patch metapopulations with density-dependent selection.
- Kubisiak, T.L; Roberds, J.H.; Spaine, P.C.; Doudrick, R.L. 2004. Microsatellite DNA suggests regional structure in the fusiform rust fungus Cronartium quercuum f. sp fusiforme.
- Bishir, J.; Roberds, James H.; Strom, Brian L. 2004. On-Bark Behavior of Dendroctonus frontalis: A Markov Chain Analysis.
- Selgrade, James F.; Roberds, James H. 2003. Equilibrium and nonequilibrium attractors for a discrete, selection-migration model.
- Roberds, James H.; Strom, Brian L.; Hain, Fred P.; Gwaze, David P.; McKeand, Steven E.; Lott, Larry H. 2003. Estimates of genetic parameters for oleoresin and growth traits in juvenile loblolly pine.
- Kubisiak, Thomas L.; Roberds, James H. 2003. Genetic Variation in Natural Populations of American Chestnut.
- Roberds, James H.; Strom, Brian L.; Hain, F.P. 2003. Genetic and phenotypic variability for constitutive oleoresin flow in loblolly pine.
- Koehn, Anita C.; Roberds, James H.; Doudrick, Robert L. 2003. Variation among slash pine families in chlorophyll fluorescence traits.
- Selgrade, James F.; Roberds, James H. 2001. On the structure of attractors for discrete, periodically forced systems with applications to population models.
- Roberds, James H.; Selgrade, James F. 2000. Dynamical Analysis of Density-dependent Selection in a Discrete one-island Migration Model.
- Selgrade, James F.; Roberds, James H. 1998. Reversing Period-Doubling Bifurcations in Models of Population Interactions Using Constant Stocking or Harvesting.
- Roberds, James H.; Kubisiak, Thomas L.; Spaine, Pauline C.; Covert, S.F.; Doudrick, R.L. 1997. Selection of RAPD markers for investigation of genetic population structure in fusiform rust fungus infecting loblolly pine.
Research Highlights
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