James A. Quinn, Professor


1 College Farm Road
Cook College/Rutgers University
New Brunswick, NJ 08901-1582

Phone: (732) 932-4519.

FAX: (732) 932-4517.

E-Mail: quinn@aesop.rutgers.edu


B.S. Oklahoma Panhandle State University. (Crops and Soils), 1961
M.S. Colorado State University, College of Natural Resources, 1963
Ph.D. Colorado State University, Botany (Plant Ecology), 1966

Research Activities/Projects:

A primary focal point of my research is the genetic diversity within and among populations of a species, specifically the diversity of physiological, morphological, and life-history adaptations for establishment, reproduction, and survival in different habitats. This has led to studies of populational genetic differentiation along latitudinal, altitudinal, moisture, soil pollution, and grazing pressure gradients, and to studies of the relative amounts of genetically-based phenotypic plasticity among populations of differing ecological histories (resource levels, environmental predictability, disturbance history). Most recently, my students and I have been involved in studies of the evolution of plant reproductive strategies and breeding systems among populations of the same species in different habitats and geographic regions.

Ten Selected Publications:

Quinn, J.A., and J.C. Colosi. 1977. Separating genotype from environment in germination ecology studies. Amer. Midl. Natur. 97:484-489.

Roos, F.H., and J.A. Quinn. 1977. Phenology and reproductive allocation in Andropogon scoparius (Gramineae) populations in communities of different successional stages. Amer. J. Bot. 64:535-540.

Cheplick, G.P., and J.A. Quinn. 1982. Amphicarpum purshii and the "Pessimistic strategy" in amphicarpic annuals with subterranean fruit. Oecologia 52:327-332.

Campbell, C.S., J.A. Quinn, G.P. Cheplick, and T.J. Bell. 1983. Cleistogamy in grasses. Ann. Rev. Ecol. Syst. 14:411-441.

Quinn, J.A. 1987. Complex patterns of genetic differentiation and phenotypic plasticity vs. an outmoded ecotype terminology. In: K. Urbanska (ed.), Differentiation patterns in higher plants, pp. 95-113. Academic Press, London.

McCarthy, B.C. and J.A. Quinn. 1990. Reproductive ecology of Carya (Juglandaceae): Phenology, pollination, and breeding system of two sympatric tree species. Amer. J. Bot. 77: 261-273.

Quinn, J.A. 1991. Evolution of dioecy in Buchloe dactyloides (Grainineae): Tests for sex specific vegetative characters, ecological differences, and sexual niche-partitioning. Amer. J. Bot. 78: 481-488.

Quinn, J.A., D.P. Mowrey, S.M. Emanuele, and R.D.B. Whalley. 1994. The "Foliage is the Fruit" hypothesis: Buchloe dactyloides (Poaceae) and the shortgrass prairie of North America. Amer. J. Bot. 81: 1545-1554.

Yin, T. and J.A. Quinn. 1995. Tests of a mechanistic model of one hormone regulating both sexes in Buchloe dactyloides (Poaceae). Amer. J. Bot. 82: 745-751.

Quinn, J.A. 1998. Ecological aspects of sex expression in grasses. In: G.P. Cheplick (ed.), Population biology of grasses, pp. 136-154. Cambridge University Press, London.

Return to list of faculty