References

Ainley, D. G., and D. P. DeMaster. 1990. The upper trophic levels in polar marine ecosystems. In Polar Oceanography, Pt. B: Chemistry, Biology, and Geology , ed. W. O. Smith, 599–630. San Diego: Academic Press.

Argos. 1989. Guide to the Argos System . Toulouse: Argos CLS.

Boyd, I. L., T. Arnbom, and M. A. Fedak. 1993. Water flux, body composition, and metabolic rate during molt in female southern elephant seals (Mirounga leonina ). Physiological Zoology 66: 43–60.

Clarke, M. R., and N. MacLeod. 1982. Cephalopods in the diet of elephant seals at Signy Island, South Orkney Islands. British Antarctic Survey Bulletin 57: 27–31.

El-Sayed, S. Z. 1988. Seasonal and inter-annual variabilities in Antarctic phytoplankton with reference to krill distribution. In Antarctic Ocean and Resources Variability , ed. D. Sahrhage, 101–119. Berlin, Heidelberg, and New York: Springer Verlag.

Fedak, M. A., I. L. Boyd, T. Arnbom, and T. S. McCann. 1989. The energetics of lactation in southern elephant seals, Mirounga leonina , in relation to the mother's size. Abstract from the Eighth Biennial Conference on the Biology of Marine Mammals, Monterey, Calif., December 7–12, 1989.

Gallivan, G. J., and K. Ronald. 1981. Apparent specific dynamic action in the harp seal (Phoca groenlandica ). Comparative Biochemistry and Physiology . 69A: 579–581.

Hindell, M. A., H. R. Burton, and D. J. Slip. 1991. Foraging areas of southern elephant seals, Mirounga leonina , as inferred from water temperature data. Australian Journal of Marine and Freshwater Research 42: 115–128.

Huber, H. R. 1987. Natality and weaning success in relation to age of first reproduction in northern elephant seals. Canadian Journal of Zoology 65: 1311–1316.

Itchii, T. 1990. Distribution of Antarctic krill concentrations exploited by Japanese krill trawlers and minke whales. Proceedings of the NIPR Symposium on Polar Biology 3: 36–56.

Kleiber, M. 1961. The Fire of Life . New York: John Wiley and Sons.

Laws, R. M. 1956. The elephant seal (Mirounga leonina Linn). II. General, social, and reproduction behaviour. Falkland Islands Dependencies Survey, Scientific Reports 13: 1–88.

———. 1960. The southern elephant seal (Mirounga leonina Linn.) at South Georgia. Norsk Hvalfangst-Tidende 49: 466–476, 520–542.

———. 1984. Seals. In Antarctic Ecology , vol. 2, ed. R. M. Laws, 621–715. London: Academic Press.

Le Boeuf, B. J., Y. Naito, A. C. Huntley, and T. Asaga. 1989. Prolonged, continuous, deep diving by northern elephant seals. Canadian Journal of Zoology 67: 2514–2519.

Ling, J. K., and M. M. Bryden. 1981. Southern elephant seal, Mirounga leonina Linnaeus, 1758. In Handbook of Marine Mammals, 2, Seals , eds. S. H. Ridgway and R. J. Harrison, 297–327. London: Academic Press.

McCann, T. S. 1980. Population structure and social organisation of southern elephant seals, Mirounga leonina (L.). Biological Journal of the Linnaean Society of London 14: 133–150.

———. 1981. The social organization and behaviour of the southern elephant seal, Mirounga leonina (L.). Ph.D. dissertation, University of London, England.

———. 1985. Size, status, and demography of southern elephant seal (Mirounga leonina ) populations. In Sea Mammals in South Latitudes: Proceedings of a Symposium of the 52d ANZAAS Congress in Sydney—May 1982 , ed. J. K. Ling and M. M. Bryden, 1–17. Northfield: South Australian Museum.

McCann, T. S., M. A. Fedak, and J. Harwood. 1989. Parental investment in southern elephant seals, Mirounga leonina. Journal of Behavioural Ecology and Sociobiology 25: 81–87.

McCann, T. S., and P. Rothery. 1988. Population size and status of the southern elephant seal (Mirounga leonina ) at South Georgia, 1951–85. Polar Biology 8: 305–309.

McConnell, B. J., C. Chambers, and M. A. Fedak. 1992. Foraging ecology of southern elephant seals in relation to the oceanography of the Southern Ocean. Antarctic Science 4: 393–398.

Murphy, R. C. 1914. Notes on the sea elephant, Mirounga leonina (Linn.). Bulletin of the American Museum of Natural History 33: 63–78.

Reilly, J. J., and M. A. Fedak. 1990. Measurement of the body composition of living gray seals by hydrogen isotope dilution. Journal of Applied Physiology 69: 885–891.

Reiter, J., and B. J. Le Boeuf. 1991. Life history consequence of variation in age at primiparity in northern elephant seals. Journal of Behavioral Ecology and Sociobiology 28: 153–160.

Rodhouse, P., T. R. Arnbom, M. A. Fedak, J. Yeatman, and A. W. A. Murray. 1992. Cephalopod prey of the southern elephant seal, Mirounga leonina L. Canadian Journal of Zoology 70: 1007–1015.

Sakamoto, W., Y. Naito, A. C. Huntley, and B. J. Le Boeuf. 1989. Daily gross energy requirements of female northern elephant seal, Mirounga angustirostris , at sea. Nippon Suisan Gakkaishi 55: 2057–2063.

Worthy, G. A. J., P. A. Morris, D. P. Costa, and B. J. Le Boeuf. 1992. Molt energetics of the northern elephant seal. Journal of Zoology, London 227: 257–265.