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Records of elephant seals mirounga angustirostris on los coronados islands baja california mexico with recent analyses of the breeding population



Records of elephant seals mirounga angustirostris on los coronados islands baja california mexico with recent analyses of the breeding population



Transactions of the San Diego Society of Natural History 18(1): 1-8



Northern elephant seals, M. angustirostris, have been observed on Los Coronados Islands, Baja California, Mexico, on many occasions in recent decades, once in 1936 and often from 1949 to the present. Pups have been recorded on South Island in summer at least since 1950 and in winter since 1971. The composition of the breeding colony was tallied in 1974 and 1975. The colony is small (28 pups were born in 1974, 37 in 1975) and will probably not become much larger, due to the limited breeding space and to the exposure of the breeding beach. Pup mortality prior to weaning was at least 18% in 1974 and 19% in 1975. The colony receives immigrants from Isla de Guadalupe, Baja California.

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Accession: 006273635

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