Zalophus wollebaeki


Bibliography [top]

Alava, J. J. and Salazar, S. 2006. Status and conservation of Otariids in Ecuador and the Galápagos Islands. In: A. W. Trites, S. K. Atkinson, D. P. DeMaster, L. W. Fritz, T. S. Gelatt, L. D. Rea and K. M. Wynne (eds), Sea Lions of the World, pp. 495-520. Fairbanks: Alaska Sea Grant College Program, Alaska, USA.

Antonelis, G. A., Stewart, B. S. and Perryman, W. F. 1990. Foraging characteristics of female northern fur seals (Callorhinus ursinus) and California sea lions (Zalophus californianus). Canadian Journal of Zoology 68: 150-158.

Antonelis Jr., G. A., Fiscus, C. H. and Delong, R. L. 1984. Spring and summer prey of California sea lions, Zalophus californianus, at San Miguel Island, California, 1978-79. Fishery Bulletin 82(1): 67-76.

Aurioles, D. and Sinsel, F. 1988. Mortality of Californian sea lions pups, at Los Islotes, Baja California Sur. Mexico. Journal of Mammalogy 69: 180-183.

Aurioles, D., Fox, C., Sinsel, F. and Tanos, G. 1984. Prey of the California sea lion (Zalophus californianus) in the Bay of La Paz, Baja California Sur, Mexico. Journal of Mammalogy 65: 519-521.

de Anda, H. 1985. Habitos Alimenticios del Lobo Marino de Califomia (Zalophus californianus) en Las Islas Los Coronados B.C., de Noviembre 1983 a Octubre 1984. Tesis de Licenciatura en Ciencias Marinas., Univ. Auton.

Dellinger, T. and Trillmich, F. 1999. Fish prey of the sympatric Galápagos fur seals and sea lions: seasonal variation and niche separation. Canadian Journal of Zoology 77: 1204-1216.

Demaster, D., Miller, D., Henderson, J. R. and Coe, J. M. 1985. Conflicts between marine mammals and fisheries off the coast of California. In: J. R. Beddington, R. J. H. Beverton and D. M. Lavigne (eds), Marine mammals and fisheries, pp. 111-118. George Allen & Unwin.

Demaster, D. P., Miller, D. J., Goodman, D., Delong, R. L. and Stewart, B. S. 1982. Assessment of California sea lion fishery interactions. Transactions of the North American Wildlife and Natural. Resources Conference 47: 253-264.

Heath, C. B. 2002. California, Galapagos, and Japanese sea lions Zalophus californianus, Z. wollebaeki, and Z. japonicus. In: W. F. Perrin, B. Wursig and J. G. M. Thewissen (eds), Encyclopedia of Marine Mammals, pp. 180-186. Academic Press, San Diego, USA.

IUCN. 2008. 2008 IUCN Red List of Threatened Species. Available at: (Accessed: 5 October 2008).

Kooyman, G. L. and Trillmich, F. 1986. Diving behavior of Galapagos sea lions. In: R. L. Gentry and G. L. Kooyman (eds), Fur seals: Maternal strategies on land and at sea, pp. 209-219. Princeton University Press.

Le Boeuf, B. J., Aurioles, D., Condit, R., Fox, C., Gisiner, R., Romero, R. and Sinsel, F. 1983. Size and distribution of the California sea lion population in Mexico. Proceedings of the California Academy of Sciences 43: 77-85.

Lowry, M. S., Oliver, C. W., Macky, C. and Wexler, J. B. 1990. Food habits of Californian sea lions, Zalophus californianus, at San Clemente Island, California, 1981- 1986. Fishery Bulletin 88: 509-521.

Lowry, M. S., Stewart, B. S., Heath, C. B., Yochem, P. K. and Francis, J. M. 1991. Seasonal and annual variability in the diet of California sea lions Zalophus californianus at San Nicholas Island, California, 1981-86. Fishery Bulletin 89: 331-336.

Mate, B. R. 1982. History and present status of the California sea lion, Zalophus californianus. Mammals in the seas, Vol. IV, pp. 303-309. FAO Fisheries Series, No. 5.

Odell, D. K. 1981. California sea lion Zalophus californianus (Lesson, 1828). In: S. H. Ridgway and R. Harrison (eds), Handbook of marine mammals, Volume 1: The walrus, sea lions, fur seals, and sea otter, pp. 67-97. Academic Press.

Orr, R. T. 1967. The Galapago sea lion. Journal of Mammalogy 48: 62-69.

Orta, D. F. 1988. Habitos alimenticions del lobo marino de California en El Racito, Golfo de California, Septiembre 1986-Octubre 1987. Tesis de Licenciatura en Ciencias Marinas, Univ. auton. de Baja California. Mexico.

Rice, D.W. 1998. Marine Mammals of the World. Systematics and Distribution. Society for Marine Mammalogy, Lawrence, Kansas.

Stewart, B. S. and Yochem, P. K. 1987. Entanglement of pinnipeds in synthetic debris and fishing net and line fragments at San Nicolas and San Miguel island, California, 1978-1986. Marine Pollution Bulletin 18: 336-339.

Trillmich, F. 1979. Noticias de Galapagos. Noticias de Galapagos 29: 8-14.

Trillmich, F. 1986. Attendance behavior of Galapagos sea lions. In: R. L. Gentry and G. L. Kooyman (eds), Fur seals: Maternal strategies on land and at sea, pp. 196-208. Princeton University Press, Princeton, NJ, USA.

Trillmich, F. 1990. The behavioral ecology of maternal effort in fur seals and sea lions. Behaviour 114: 1-20.

Trillmich, F. and Dellinger, T. 1991. The effects of El Niño on Galápagos pinnipeds. In: F. Trillmich and K. A. Ono (eds), Pinnipeds and El Niño: Responses to environmental stress, pp. 66-74. Springer-Verlag, Berlin, Germany.

Trillmich, F. and Limberger, D. 1985. Drastic effects of El Niño on Galápagos pinnipeds. Oecologia 67: 19-22.

Trillmich, F. and Trillmich, K. G. K. 1984. The mating systems of pinnipeds and marine iguanas: convergent evolution of polygyny. Biological Journal of the Linnean Society 21: 209-216.

Villegas-Amtmann, S., Costa, D. P., Tremblay, Y., Salazar, S. and Aurioles-Gamboa, D. 2008. Multiple foraging strategies in a marine apex predator, the Galapagos Sea Lion Zalophus wollebaeki. Marine Ecology Progress Series 363: 299-309.

Wolf, J. B. W., Tautz, D. and Trillmich, F. 2007. Galapagos and Californian sea lions are separate species: genetic analysis of the genus Zalophus and its implications for conservation management. Frontiers Zoology 4: doi:10.1186/1742-9994-4-20.

Citation: Aurioles, D. & Trillmich, F. (IUCN SSC Pinniped Specialist Group) 2008. Zalophus wollebaeki. The IUCN Red List of Threatened Species. Version 2014.3. <>. Downloaded on 30 January 2015.
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