Causes of offspring mortality in the Antarctic fur seal, Arctocephalus gazella: The interaction of density dependence and ecosystem variability

Canadian Journal of Zoology

Volumn 83, Issue 4, 2005, Pages 604-609

  Reid, Keith ^a   Forcada, Jaume ^a  

^a BRITISH ANTARCTIC SURVEY   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

BIODIVERSITY; POPULATION STATISTICS;

OFFSPRING MORTALITY; PUP MORTALITY; SEAL DENSITY;

ECOSYSTEMS;

DENSITY DEPENDENCE; MORTALITY; PINNIPED;

ANTARCTICA; ARCTIC AND ANTARCTIC; BIRD ISLAND [SOUTH GEORGIA]; SOUTH GEORGIA; WORLD;

ANIMALIA; ARCTOCEPHALUS GAZELLA; AVES; PHOCIDAE;

EID: 23944523534     PISSN: 00084301     EISSN: None     Source Type: Journal    
DOI: 10.1139/Z05-045     Document Type: Article

References (30)

1. Baker, J.R., and Doidge, D.W. 1984. Pathology of the Antarctic fur seal (Arctocephalus gazella) in South Georgia. Br. Vet. J. 140: 210-220.
2. Barbraud, C., and Weimerskirch, H. 2003. Climate and density shape population dynamics of a marine top predator. Proc. R. Soc. Lond. B Biol. Sci. 270: 2111-2116.
3. Barlow, K.E., Boyd, I.L., Croxall, J.P., Reid, K., Staniland, I.J., and Brierley, A.S. 2002. Are penguins and seals in competition for Antarctic krill at South Georgia? Mar. Biol. 140: 205-213.
4. Bonner, W.N. 1968. The fur seal of South Georgia. Br. Antarct. Surv. Sci. Rep. 56.
5. Boyd, I.L. 1993. Pup production and distribution of breeding Antarctic fur seals Arctocephalus gazella at South Georgia. Antarct. Sci. 5: 17-24.
6. Boyd, I.L. 1999. Foraging and provisioning in Antarctic fur seals: interannual variability in time-energy budgets. Behav. Ecol. 10: 198-208.
7. Boyd, I.L., Arnould, J.P.Y., Barton, T., and Croxall, J.P. 1994. Foraging behaviour of Antarctic fur seals during periods of contrasting prey abundance. J. Anim. Ecol. 63: 703-713.
8. Boyd, I.L., Staniland, I.J., and Martin, A.R. 2002. Distribution of foraging by female Antarctic fur seals. Mar. Ecol. Prog. Ser. 242: 285-294.
9. Dias, P.C. 1996. Sources and sinks in population biology. Trends Ecol. Evol. 11: 326-330.
10. Doidge, D.W., Croxall, J.P., and Baker, J.R. 1984. Density-dependent pup mortality in the Antarctic fur seal Arctocephalus gazella at South Georgia. J. Zool. (Lond.), 202: 449-460.
11. Everson, I., Parkes, G., Kock, K.H., and Boyd, I.L. 1999. Variation in standing stock of the mackerel icefish Champsocephalus gunnari at South Georgia. J. Appl. Ecol. 36: 591-603.
12. Forcada, J., Trathan, P.N., Reid, K., and Murphy, E.J. 2005. The effects of global climate variability on pup production of Antarctic fur seals. Ecology. In press.
13. Hodgson, D.A., and Johnston, N.M. 1997. Inferring seal populations from lake sediments. Nature (Lond.), 387: 30-31.
14. Hucke-Gaete, R., Osman, L.P., Moreno, C.A., and Torres, D. 2004. Examining natural population growth from near extinction: the case of the Antarctic fur seal at the South Shetlands, Antarctica. Polar Biol. 27: 304-311.
15. Jackson, J.B.C., Kirby, M.X., Berger, W.H., Bjorndal, K.A., Botsford, L.W., Bourque, B.J. et al. 2001. Historical overfishing and the recent collapse of coastal ecosystems. Science (Wash., D.C.), 293: 629-638.
16. Krebs, C.J. 1995. Two paradigms of population regulation. Wildl. Res. 22: 1-10.
17. Krebs, C.J. 2002. Two complementary paradigms for analysing population dynamics. Philos. Trans. R. Soc. Lond. B Biol. Sci. 357: 1211-1219.
18. Lewis Smith, R.I. 1988. Destruction of Antarctic terrestrial ecosystems by a rapidly increasing fur seal population. Biol. Conserv. 45: 55-72.
19. McCafferty, D.J., Boyd, I.L., Walker, T.R., and Taylor, R.I. 1998. Foraging responses on Antarctic fur seals to changes in the marine environment. Mar. Ecol. Prog. Ser. 166: 285-299.
20. Myers, R.A., and Worm, B. 2003. Rapid worldwide depletion of predatory fish communities. Nature (Lond.), 423: 280-283.
21. Payne, M.R. 1977. Growth of a fur seal population. Philos. Trans. R. Soc. Lond. B Biol. Sci. 279: 67-79.
22. Reid, K., and Arnould, J.P.Y. 1996. The diet of Antarctic fur seals Arctocephalus gazella during the breeding season at South Georgia. Polar Biol. 16: 105-114.
23. Reid, K., and Croxall, J.P. 2001. Environmental response of upper trophic-level predators reveals a system change in an Antarctic marine ecosystem. Proc. R. Soc. Lond. B Biol. Sci. 268: 377-384.
24. Reid, K., Hill, S., and Diniz, T.C.D. 2003. Mackerel icefish Champsocephalus gunnari in the diet of upper trophic level predators at South Georgia: implications for fisheries management. CCAMLR WG-FSA 03/74, Hobart.
25. Reid, K., Croxall, J.P., Briggs, D.R., and Murphy, E.J. 2005. Antarctic ecosystem monitoring: quantifying the response of ecosystem indicators to variability in Antarctic krill. ICES J. Mar. Sci. 62: 366-373.
26. Sibly, R.M., and Hone, J. 2002. Population growth rate and its determinants: an overview. Philos. Trans. R. Soc. Lond. B Biol. Sci. 357: 1153-1170.
27. Sinclair, A.R.E. 1989. Population regulation in animals. In Ecological concepts. Edited by C.J.M. Cherret. Blackwell Scientific, Oxford. pp. 197-241.
28. Sinclair, A.R.E., and Pech, R.P. 1996. Density dependence, stochasticity, compensation and predator regulation. Oikos, 75: 164-173.
29. Springer, A.M., Estes, J.A., van Vliet, G.B., Williams, T.M., Doak, D.F., Danner, E.M. et al. 2003. Sequential megafaunal collapse in the North Pacific Ocean: an ongoing legacy of industrial whaling? Proc. Natl. Acad. Sci. U.S.A. 100: 12223-12228.
30. Sun, L., Liu, X., Yin, X., Zhu, R., Xie, Z., and Wang, Y. 2004. A 1,500-year record of Antarctic seal populations in response to climate change. Polar Biol. 27: 495-501.