These are references cited throughout the web-site, and are strongly recommended for additional reading, regarding the Gulf of California, and the Sonoran desert that surrounds it. Allen, G. R., and Robertson, D. R. 1994. Fishes of the tropical eastern Pacific. The University of Hawaii Press. Honolulu. Barragan J. M. and Tejeda M. S. 1988. Islas del Golfo de California. Secretaria de Gobernacion/UNAM, Mexico. Brown, D. E., (ed). 1994. Biotic Communities, Southwestern United States and Northwestern Mexico. The University of Utah Press. Salt Lake City. Brown, D. E., and Lowe, C. H. 1980. Biotic Communities of the Southwest. USDA Forest Service General Technical Report RM-78. 1p. map Rocky Mountain Forest and Range Experiment Station. Fort Collins. Brusca, R. C. 1980. Common Intertidal invertebrates of the Gulf of California. The University of Arizona Press. Tucson. Case, T. J., and Cody, M. L. (eds). 1983. Island biogeography in the Sea of Cortez. The University of California Press. Berkeley. Epple, A. O. 1995. Plants of Arizona. Falcon. HelenaEzcurra, E. R. S., Felger, R. S., and Equihua, M. 1988. Freshwater islands in a desert sand sea: The hydrology, flora, and phytogeography of the Gran Desoerto oases of northwestern Mexico. Desert Plants 9:35-44, 55-63. Felger, R. S., and Moser, M. B. 1985. People of the Desert and Sea: Ethnobotany of the Seri Indians. The University of Arizona Press. Tucson. Humphrey, R. R. 1974. The Boojum and its Home. The University of Arizona Press. Tucson. Kearney, T. H., and Peebles, R. H. 1960. Arizona Flora. The University of California Press. Berkeley. Keen, A. M. 1971. Sea shells of the tropical west America. Stanford University Press. Stanford. Leopold, A. 1949. A sand county almanac. Oxford University Press. New York. Light, S. F. 1975. Lights Manual: Intertidal invertebrates of the central Californian coast. 3rd Ed. R. I. Smith and J. T. Carlton (eds). University of California Press. Berkeley. Lumholtz, C. 1912. New Trails in Mexico. Scribner. New York. Miller, D. J., and Lea, R. N. 1972. Guide to the coastal marine fishes of California. Department of Fish and Game. Fish Bulletin 157. Minckley, W. L. 1973. Fishes of Arizona. Arizona Game and Fish Department. Phoenix. Ricketts, E. F., and Calvin, J. 1964. Between Pacific Tides. 3rd Ed. Stanford University Press. Stanford. Russel S. M. and Monson G. 1998. The Birds of Sonora. The University of Arizona. Tucson. Stebbins, R. C. 1985. Western Reptiles and Amphibians. Houghton Mifflin Company. Boston. Steinbeck, J., and Ricketts, E. F. 1941. Sea of Cortez. Viking Press. New York. Thomson, D. A., 2001. Tide Calendar for the Northern Gulf of California. The University of Arizona. Tucson. Thomson, D. A., Findley, L. T., and Kerstitch, A. N. 2000. Reef fishes of the Sea of Cortez. The University of Texas Press. Austin.Thomson, D. A. and McKibbin N. 1976. Gulf of California fishwatcher's guide. Golden Puffer Press. Tucson. Thomson, D. A., and Muench, K. A. 1976. Influence of tides and waves on the spawning behavior of the Gulf of California grunion, Leuresthes sardina (Jenkins and Evermann). Bull. S. Calif. Acad. Sci. 74(2):198-203. Thomson, D. A., and Lehner, C. E. 1976. Resilience of a rocky intertidal fish community in a physically unstable environment. J. Exp. Mar. Biol. Ecol. 22:1-29.