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Big-headed turtle
  • 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.
  • 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. PDF
  • 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.
  • 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.
  • Shaffer, H. B. P. Meylan and M. L. McKnight. 1997. Tests of turtle phylogeny: molecular, morphological and paleontological approaches. Systematic Biology 46:235-268. PDF
  • 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.
  • 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.
  • 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. PDF
  • Fisher, R. N. and H. B. Shaffer. 1996. The decline of amphibians in California's Great Central Valley Conservation Biology, 10:1387-1397.
  • 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. PDF
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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..
  • 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.
  • Shaffer, H. B. 1993. Systematics of model organisms: The laboratory axolotl, Ambystoma mexicanum. Systematic Biology 42:508-522.
  • Kellogg, E. A. and H. B. Shaffer. 1993. Model organisms in evolutionary studies. Systematic Biology 42:409-414.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • Shaffer, H.B. and F. Breden. 1989. The relationship between allozyme variation and life history: Non-transforming salamanders are less variable. Copeia 1989(4):1016-1023.
  • Shaffer, H.B. 1989. Natural history, ecology, and evolution of the Mexican "Axolotls". Axolotl Newsletter #18:5-12.
  • Shaffer, H.B. 1988. Size and scaling in the indian frogs Nyctibatrachus and Nannobatrachus (Ranidae). Fieldiana Zoology, #46.
  • Shaffer, H.B. and G.V. Lauder. 1988. The ontogeny of functional design: Metamorphosis of feeding behavior in the Tiger Salamander (Ambystoma tigrinum). Journal of Zoology, London 216:437-454.
  • Lauder, G.V. and H.B. Shaffer. 1988. The ontogeny of functional design: Are motor patterns conserved during major morphological transformations? Journal of Morphology 197:249-268.
  • Inger, R.F., H.B. Shaffer, M. Koshy and R. Bakde. 1987. Ecological structure of a herpetological assemblage in South India. Amphibia-Reptilia 8: 189-202.
  • Shaffer, H.B. 1986. The utility of quantitative genetic parameter estimates in character weighting. Systematic Zoology 35(1): 124-134.
  • Shaffer, H.B. and G.V. Lauder. 1986. Aquatic prey capture in ambystomatid salamanders: Patterns of variation in muscle activity. Journal of Morphology 183: 273-284.
  • Lauder, G.V. and H.B. Shaffer. 1986. Functional design of the feeding mechanism in lower vertebrates: Unidirectional and bidirectional flow systems. Zool J. Linn Soc. 88: 277-290.
  • Shaffer, H.B. and G.V. Lauder. 1985. Patterns of variation in aquatic ambystomatid salamanders: Kinematics of the feeding mechanism. Evolution 39: 83-92.
  • Shaffer, H.B. and G.V. Lauder. 1985. Functional morphology of the feeding mechanism in aquatic ambystomatid salamanders. Journal of Morphology 185: 297-326.
  • Shaffer, H.B. 1984a. Evolution in a paedomorphic lineage. I. An electrophoretic analysis of the Mexican ambystomatid salamanders. Evolution 38: 1194-1206.
  • Shaffer, H.B. 1984b. Evolution in a paedomorphic lineage. II. Allometry and form in the Mexican ambystomatid salamanders. Evolution 38: 1207-1218.
  • Inger, R.F., H.B. Shaffer, M. Koshy and R. Bakde. 1984a. A report on a collection of amphibians and reptiles from the Ponmudi, Kerala, South India. Part 1. Journal of Bombay Natural History Society 81(2): 406-427.
  • Inger, R.F., H.B. Shaffer, M. Koshy and R. Bakde. 1984b. A report on a collection of amphibians and reptiles from the Ponmudi, Kerala, South India. Part 2. Journal of Bombay Natural History Society 81(3): 551-570.
  • Shaffer, H.B. 1983. Biosystematics of Ambystoma rosaceum and A. tigrinum in northwestern Mexico. Copeia 1983: 67-78.
  • Feder, M.E., J.F. Lynch, H.B. Shaffer and D.B. Wake. 1982. Field body temperatures of tropical and temperate zone salamanders. Smithsonian Herpetological Information Services #52.
  • Kiester, A.R., T. Nagylaki and B. Shaffer. 1981. Population dynamics of species with gynogenetic sibling species. Theoretical Population Biology 19(3): 358-369.
  • Shaffer, H.B. 1978. Relative predation pressure on salamanders (Caudata, Plethodontidae) along an altitudinal transect in Guatemala. Copeia 1978: 268-272.
 
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