Conkle, M. T., W. J. Libby and J. L. Hamrick. 1966. Winter injury among white fir seedlings. Pacific Southwest For. and Range Expt. Sta. Research Note 138. Hamrick, J. L. and W. J. Libby. 1972. Variation and selection in western montane species. I. White fir. Silvae Genetica 21:29-35. Hamrick, J. L. and R. W. Allard. 1972. Microgeographical variation in allozyme frequencies in Avena barbata. Proc. Nat. Acad. Sci. 69:2100-2104. Gaines, M. S., K. J. Vogt, J. L. Hamrick and J. Caldwell. 1974. Reproductive strategies and growth patterns in sunflowers (Helianthus). Am. Nat. 108:889-893. Hamrick, J. L. and R. W. Allard. 1975. Correlations between quantitative characteristics and allozyme genotypes in Avena barbata. Evolution 29:438-442. Hamrick, J. L. 1976. Variation and selection in western montane species. II. Variation between and within stands of white fir on an elevational transect. Theor. Appl. Gen. 48:27-34. Mitton, J. B., Y. B. Linhart, J. L. Hamrick and J. Beckman. 1977. Population differentiation and mating system in Ponderosa pine of the Colorado Front Range. Theo Appl., Gen. 51:5-14. Kiang, Y. T. and J. L. Hamrick. 1978. Ecological adaptation and reproductive isolation in the Mimulus guttatus - M. nasutus comples. Amer. Midl. Nat 100:269-270. Hamrick, J. L. 1978. Genetic variation and longevity. pp. 84-113. In Plant Population Biology. Solbrig, Jain, Johnson and Raven eds. Columbia University Press. Birdsell, R. and J. L. Hamrick. 1978. The effect of slope-aspect on the composition and density of an oak-hickory forest. Kansas Sci. Bull. 51:565-573. Linhart, Y. B., J. B. Mitton, D. M.Bowman, K. B. Sturgeon and J. L. Hamrick. 1978. Some genetic consequences of differential reproduction in populations of forest trees. In I.U.F.R.O. Symposium on Flowering and Seed Production in Forest Trees. Sanders, T. B., J. L. Hamrick and L. R. Holden. 1979. Allozyme variation in Elymus canadensis from the tall grass prairie region. I. Geographic variation. Amer. Midl. Nat. 101:1-12. Hamrick, J. L., Y. B. Linhart and J. B. Mitton. 1979. Relationship between life history parameters and allozyme variation in plants. Ann. Rev. Ecol. Syst. 10:173-200. Hamrick, J. L. and L. R. Holden. 1979. The influence of microhabitat heterogeneity on gene frequency distribution and gametic phase disequilibrium in Avena barbata. Evolution 33:521-533. 15. Sanders, T. B. and J. L. Hamrick. 1979. Variation in the breeding system of Elymus canadensis. Evolution 34:117-122. Mitton, J. B., Y.B. Linhart, B. K. Sturgeon and J. L. Hamrick. 1979. Allozyme polymorphisms detected in mature needle tissue of Ponderosa pine, Pinus ponderosa Laws. J. Heredity 70:86-89. Linhart, Y. B., J. B. Mitton, D. W. Bowman and J. L. Hamrick. 1979. Genetic aspects of fertility differentials in Ponderosa pine. Genet. Res. 33:207-212. Hamrick, J. L., J. B. Mitton, and Y. B. Linhart. 1981. Level of genetic variation in trees: The influence of life history characteristics. Proc. Symp.on Isozymes of N. Amer. Forest Trees and Forest Insects. Pacific S. W. For. and Range Expt. Stat. Tech. Report PSW-48:35-41. Gaur, P. K., R. W. Lichtwardt and J. L. Hamrick. 1981. Isozyme variation among soil isolates of Histoplasma capsulatum. Expt. Mycology 5:69-77. Hamrick, J. L. 1982. Plant population genetics and evolution. Am. J. Bot. 69:1685-1693. Hiebert, R.D. and J. L. Hamrick. 1983. Patterns and levels of genetic variation in Great Basin bristlecone pine, Pinus longaeva. Evolution 37:302-310. Lee, J. M. and J. L. Hamrick. 1983. The demographic characteristics of two natural populations of musk thistle (Carduus nutans L.). J. Ecol. 71:923-936. Hamrick, J. L. 1983. The distribution of genetic variation within and among natural plant populations. pp. 335-348 In Genetics and Wild Population Management Chambers and Schonewald-Cox eds. Addison-Wesley, New York. Hamrick, J. L. 1983. The distribution of genetic variation within and among plant populations. pp. 500-508. Appendix 4. In Genetics and Wild Population Management. Chambers and Schonewald-Cox eds. Addison-Wesley New York. Hiebert, R. D. and J. L. Hamrick. 1984. Population ecology of bristlecone pine (Pinus longaeva) in the eastern Great Basin. Great Basin Natur. 44:487-494. Loveless, M. D., and J. L. Hamrick. 1984. Ecological determinants of genetic structure of plant populations. Ann. Rev. Ecol. Syst. 15:65-95. Smyth, C. A. and J. L. Hamrick. 1984. Variation in estimates of outcrossing in musk thistle populations. J. Hered. 75:303-307. Hamrick, J. L. and A. Schnabel. 1985. Understanding the genetic structure of plant populations: Some old problems and a new approach. pp. 50-70 In Population Genetics in Forestry. H. R. Gregorious ed. Lecture Notes in Biomathematics 60:Springer-Verlag, Berlin. Hamrick, J. L., R. W. Lichtwardt and C. Lan. 1986. Levels of isozyme variation within and among Histoplasma capusulatum localities. Trans. Ks. Acad. Sci. 89:49-56. Hamrick, J. L. and M. D. Loveless. 1986. Allozyme variation in tropical trees: Techniques and preliminary results. Biotropica 18:201-207. Hamrick, J. L. and M. D. Loveless. 1986. The influence of seed dispersal mechanisms on the genetic structure of plant populations. pp. 211-223 In A. Estrada and T. H. Fleming eds. Frugivores and Seed Dispersal, Junk Publ., The Hague, Netherlands. Hamrick, J. L. 1986. Plant population biology beyond the crossroads-book review. Evolution 40:656-658. Hamrick, J. L. and J. M. Lee. 1987. The effect of soil heterogeneity and litter cover on germination, survival, and growth of musk thistle. Am. J. Bot. 74:451-457. Smyth, C. A. and J. L. Hamrick. 1987. Realized gene flow via pollen in artificial populations of Carduus nutans. Evolution. 41:613-619. Loveless, M. D. and J. L. Hamrick. 1987. Distribution de la variation gentica en especies arbreas tropicales. Revista de Biologia Tropical, 35:165-176. Hamrick, J. L. 1987. Algunos aspectos importantes en el estudio de la genetica de poblaciones de plantas enbosques tropicales. Revista de Biologia Tropical 35:213-214. Hamrick, J. L. 1987. Gene flow and the distribution of genetic variation in plant populations, pp. 53-67. K Urbanska ed. Proc. IOPB Sym. Differentiation in Higher Plants. Academic Press, New York. Loveless, M. D. and J. L. Hamrick. 1988. Genetic organization and evolutionary history in two North American Species of Cirsium. Evolution 42: 254-265. Smith, C. C., J. L. Hamrick and C. L. Kramer. 1988. The effects of spacing on self-pollination and fecundity in lodgepole pine (Pinus contorta Dougl.). Canad. J. For. Res. 18: 453-460.