Northern Prairie Wildlife Research Center
Bédard, J., and G. LaPointe. 1984. The Savannah Sparrow territorial system: Can habitat features be related to breeding success? Canadian Journal of Zoology 62:1819-1828. Bédard, J., and G. LaPointe. 1985. Influence of parental age and season on Savannah Sparrow reproductive success. Condor 87:106-110. Bildstein, K. L., G. T. Bancroft, P. J. Dugan, D. H. Gordon, R. M. Erwin, E. Nol, L. X. Payne, and S. E. Senner. 1991. Approaches to the conservation of coastal wetlands in the western hemisphere. Wilson Bulletin 103:218-254. Bradley, R. A. 1994. Cultural change and geographic variation in the songs of the Belding's Savannah Sparrow (Passerculus sandwichensis beldingi). Bulletin of the Southern California Academy of Sciences 93:91-109. Brown, M., and J. J. Dinsmore. 1986. Implications of marsh size and isolation for marsh bird management. Journal of Wildlife Management 50:392-397. Burger, J., J. Shisler, and F. H. Lesser. 1982. Avian utilisation on six salt marshes in New Jersey. Biological Conservation 23:187-212. Burke, V. J., and J. W. Gibbons. 1995. Terrestrial buffer zones and wetland conservation: a case study of freshwater turtles in a Carolina Bay. Conservation Biology 9:1365-1369. Celada, C., and G. Bogliani. 1995. Breeding bird communities in fragmented wetlands. Bollettino di Zoologia 60:73-80. Donovan, T. M., F. R. Thompson III, J. Faaborg, and J. R. Probst. 1995. Reproductive success of migratory birds in habitat sources and sinks. Conservation Biology 9:1380-1395. Erwin, R. M., J. S. Hatfield, and T. J. Wilmers. 1995. The value and vulnerability of small estuarine islands for conserving metapopulations of breeding waterbirds. Biological Conservation 71:187-191. Fleischer, R. C., G. Fuller, and D. B. Ledig. 1995. Genetic structure of endangered Clapper Rail (Rallus longirostrus) populations in southern California. Conservation Biology 9:1234-1243. Gibbs, J. P. 1993. Importance of small wetlands for the persistence of local populations of wetland-associated animals. Wetlands 13: 25-31. Hagan, J. M., III, and D. W. Johnston (Eds.). 1992. Ecology and conservation of Neotropical landbirds. Smithsonian Institution Press, Washington, D.C. Herkert, J. R. 1994. The effects of habitat fragmentation on midwestern grassland bird communities. Ecological Applications 4:461-471. Howe, R. W., G. J. Davis, and V. Mosca. 1991. The demographic significance of 'sink' populations. Biological Conservation 57:239-255. Kie, J. G., J. A. Baldwin, and C. J. Evans. 1996. CALHOME: A program for estimating animal home ranges. Wildlife Society Bulletin 24:342-344. LaPointe, G., and J. Bédard. 1986. Savannah Sparrow, Passerculus sandwichensis, reproductive success. Canadian Field-Naturalist 100:264-267. Macdonald, K. B. 1990. Marine ecological characterization, bay history and physical environment. South San Diego Bay enhancement plan, vol. 1, Resources Atlas. San Diego Unified Port District, San Diego. Marshall, R. M., and S. E. Reinert. 1990. Breeding ecology of Seaside Sparrows in a Massachusetts salt marsh. Wilson Bulletin 102:501-5. Martin, T. E., and G. R. Geupel. 1992. Protocols for locating nests and monitoring success and associated vegetation. Point Reyes Bird Observatory Contribution No. 536. Massey, B. W. 1979. The Belding's Savannah Sparrow. U. S. Army Corps of Engineers, DACW09-78-C-0008, Los Angeles. Pacific Estuarine Research Laboratory. 1990. A manual for assessing restored and natural coastal wetlands with examples from southern California. Sea Grant Report No. T-CSGCP-021, La Jolla. Powell, A. N. 1993. Nesting habitat of Belding's Savannah Sparrows in coastal salt marshes. Wetlands 13: 129-133. Pulliam, H. R. 1988. Sources, sinks, and population regulation. American Naturalist 132:653-661. Pulliam, H. R., J. B. Dunning, Jr., and J. Liu. 1992. Population dynamics in complex landscapes: A case study. Ecological Applications 2:165-177. Pyle, P., S. Howell, R. Yunnick, and D. De Sante. 1987. Identification guide to North American passerines. State Creek Press, Bolinas, California. Ross, H. A. 1980a. The reproductive rates of yearling and older Ipswich Sparrows. Canadian Journal of Zoology 58:1557-1563. Ross, H. A. 1980b. Growth of nestling Ipswich Sparrows in relation to season, habitat, brood size, and parental age. Auk 97:721-732. Sokal, R. R., and F. J. Rohlf. 1981. Biometry. W. H. Freeman and Co., New York. Stacey, P. B., and M. Taper. 1992. Environmental variation and the persistence of small populations. Ecological Applications 2:18-29. Vickery, P. D., M. L. Hunter, Jr., and J. V. Wells. 1992. Use of a new reproductive index to evaluate relationship between habitat quality and breeding success. Auk 109: 697-705. Watts, B. D. 1991. Effects of predation risk on distribution within and between habitats in Savannah Sparrows. Ecology 72:1515-1519. Welsh, D. A. 1975. Savannah Sparrow breeding and territoriality on a Nova Scotia dune beach. Auk 92:235-251. Wheelwright, N. T., and J. D. Rising. 1993. Savannah Sparrow (Passerculus sandwichensis). In The birds of North America, no. 45 (A. Pool and F. Gill, Eds.) Academy of Natural Sciences, Philadelphia, and American Ornithologists' Union, Washington, D.C. Wiens, J. A. 1969. An approach to the study of ecological relationships among grassland birds. Ornithological Monographs No. 8. Wray, T. W., and R. C. Whitmore. 1979. Effects of vegetation on nesting success of Vesper Sparrows. Auk 96:802-805. Zedler, J. B. 1982. The ecology of southern California coastal salt marshes: A community profile. U.S. Fish and Wildlife Service, FWS/OBS-81/54, Washington D.C. Zedler, J. B. 1996. Coastal mitigation in southern California: The need for a regional restoration strategy. Ecological Applications 6:84-93. Zedler, J. B., and A. N. Powell. 1993. Problems in managing coastal wetlands: Complexities, compromises, and concerns. Oceanus 36:19-28. Zembal, R., J. Kramer, R. J. Bransfield, and N. Gilbert. 1988. A survey of Belding's Savannah Sparrows in California. American Birds 42: 1233-1236.Received 11 April 1997, accepted 9 October 1997.