Trenham, P. C., H. B. Shaffer and P. B. Moyle. 1998. Biochemical identification and assessment of population structure of morphologically similar native and invading smelt species (Hypomesus) in the Sacramento-San Joaquin Estuary, California. Transactions of the American Fisheries Society 127;417-424.<\/p>\n
Shaffer, H. B., R. N. Fisher and C. Davidson. 1998. The role of natural history collections in documenting species declines. Trends in Ecology and Evolution 13:27-30.<\/p>\n
McKnight, M. L. and H. B. Shaffer. 1997. Large, rapidly evolving intergenic spacers in the mitochondrial DNA of the salamander family Ambystomatidae (Amphibia: Caudata). Molecular Biology and Evolution, 14:1167-1176.<\/p>\n
Voss, S. R. and H. B. Shaffer. 1997. Adaptive evolution via a major gene effect: Paedomorphosis in the Mexican axolotl. Proceedings of the National Academy of Sciences, USA. 94:14185-14189.<\/p>\n
Shaffer, H. B. P. Meylan and M. L. McKnight. 1997. Tests of turtle phylogeny: molecular, morphological and paleontological approaches. Systematic Biology 46:235-268.<\/p>\n
Irschick, D. J. and H. B. Shaffer. 1997. The polytypic species revisited: Morphological differentiation among tiger salamanders (Ambystoma tigrinum) (Amphibia: Caudata). Herpetologica, 53:30-49.<\/p>\n
Janzen, F. J., S. L. Hoover and H. B. Shaffer. 1997. Molecular phylogeography of the western pond turtle (Clemmys marmorata): Preliminary results. Chelonian Conservation and Biology 2:623-626.<\/p>\n
Voss, S. R. and H. B. Shaffer. 1996. What insights into the developmental traits of urodeles does the study of interspecific hybrids provide? International Journal of Developmental Biology, 40: 885-893.<\/p>\n
Fisher, R. N. and H. B. Shaffer. 1996. The decline of amphibians in California\u2019s Great Central Valley. Conservation Biology, 10:1387-1397.<\/p>\n
Shaffer, H.B. and M. L. McKnight. 1996. The polytypic species revisited: genetic differentiation and molecular phylogenetics of the tiger salamander (Ambystoma tigrinum) (Amphibia: Caudata) complex. Evolution, 50:417-433.<\/p>\n
Shaffer, H. B. and S. R. Voss. 1996. Phylogenetic and mechanistic analysis of a developmentally integrated character complex: Alternate life history modes in ambystomatid salamanders. American Zoologist, 36(1):24-35.<\/p>\n
Stanley, S., P. B. Moyle and H. B. Shaffer. 1995. Allozyme analysis of Delta Smelt, Hypomesus transpacificus and Longfin Smelt, Spirinchus thaleichthys in the Sacramento-San Joaquin estuary, California. Copeia, 1995:390-396.<\/p>\n
Wade, M. J., M. L. McKnight and H. Bradley Shaffer. 1994. The effects of kin-structured colonization and stepping-stone range expansion on nuclear and cytoplasmic gene diversity. Evolution, 48:1114-1120.<\/p>\n
Barry, S. J. and H. B. Shaffer. 1994. The status of the California Tiger Salamander (Ambystoma californiense) at Lagunita: A fifty-year update. Journal of Herpetology 28:159-164.<\/p>\n
Zhao, E.-M., R. F. Inger, G.-F. Wu, and H. B. Shaffer. 1994. Morphological variation and ecological distribution of co-occurring larval forms of Oreolalax (Anura: Pelobatidae). Amphibia-Reptilia, 15:109-121.<\/p>\n
Shaffer, H.B., R.A. Alford, B.D. Woodward, S.J. Richards, R. G. Altig and C. Gascon. 1994. Quantitative sampling of amphibian larvae. Pps 130-141 in W.R. Heyer et al., editors, Measuring and Monitoring Biological Diversity: Standard Methods for Amphibians. Smithsonian Institution Press, Washington, D.C.<\/p>\n
Shaffer, H.B. and E. Juterbock. 1994. Night driving. Pps. 163-166 in W.R. Heyer et al., editors, Measuring and Monitoring Biological Diversity: Standard Methods for Amphibians. Smithsonian Institution Press, Washington, D.C.<\/p>\n
Shaffer, H. B. 1993. Phylogenetics of model organisms: The laboratory axolotl, Ambystoma mexicanum. Systematic Biology 42:508-522.<\/p>\n
Kellogg, E. A. and H. B. Shaffer. 1993. Model organisms in evolutionary studies. Systematic Biology 42:409-414.<\/p>\n
Wu, Guan-Fu, Zhao, Er-Mi, Inger, R. F. and H. B. Shaffer. 1993. A new frog of the genus Oreolalax (Pelobatidae) from Sichuan, China. J. Herpetology, 27:410-413.<\/p>\n
Lauder, G.V. and H.B. Shaffer. 1993. Design of feeding systems in aquatic vertebrates: Major patterns and their evolutionary interpretations. pps 113-149 in J. Hanken and B.K. Hall, eds. The Skull, vol 3. University of Chicago Press.<\/p>\n
Austin, C.C. and H.B. Shaffer. 1992. Short, medium, and long term repeatability of locomotor performance in the tiger salamander Ambystoma californiense. Functional Ecology 6:145-153.<\/p>\n
Shaffer, H.B., J.M. Clark, and F. Kraus. 1991. When molecules and morphology clash: A phylogenetic analysis of the North American ambystomatid (Caudata:Ambystomatidae) salamanders. Systematic Zoology 40(3): 284-303.<\/p>\n
Shaffer, H.B., C.C. Austin, and R.B. Huey. 1991. The consequences of metamorphosis on salamander (Ambystoma) locomotor performance. Physiological Zoology 64(1): 212-231.<\/p>\n
Inger, R.F., E. Zhao, H. Bradley Shaffer, and G. Wu. 1990. Report on a collection of amphibians and reptiles from Sichuan, China. Fieldiana Zoology, #58.<\/p>\n","protected":false},"excerpt":{"rendered":"
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