Artículo
Vergani, D.F.; Stanganelli, Z.B.; Bilenca, D. "Weaning mass variation of southern elephant seals at king George Island and its possible relationship with "El Niño" and "La Niña" events" (2001) Antarctic Science. 13(1):37-40
Consulte la política de Acceso Abierto del editor
Abstract:
Possible effects of "El Niño" Southern Oscillation (ENSO) components "El Niño" and "La Niña" on populations of southern elephant seals, Mirounga leonina L., are considered in this study. Information on pup weaning mass, collected at King George Island, South Shetland Islands, over a ten-year period (1985-94) was analysed with respect to the occurrence of ENSO and recent research in feeding ecology of this population in the Bellinghausen Sea. Weaning mass of elephant seals was found to be higher during "La Niña" and a lower during "El Niño". Differences in weaning mass between sexes varied in different proportions during El Niño and La Niña. The teleconnection between tropical Pacific anomalies and the Bellinghausen Sea deserves further research, and our results suggest a way to study this phenomenon using data of elephant seal pups weaning mass as indicators of changes in food availability.
Registro:
| Documento: | Artículo |
| Título: | Weaning mass variation of southern elephant seals at king George Island and its possible relationship with "El Niño" and "La Niña" events |
| Autor: | Vergani, D.F.; Stanganelli, Z.B.; Bilenca, D. |
| Filiación: | Centro Nacional Patagónico, CENPAT-CONICET, Boulevard Alm. Brown 3500, (9120) Puerto Madryn, Chubut, Argentina Elephant Seals Project, Rivadavia 1241, (9120) Puerto Madryn, Chubut, Argentina Departamento de Cs. Biológicas, Fac. de Cs. Exactas y Naturales, Pabellon II, (1428) Buenos Aires, Argentina |
| Palabras clave: | El Niño; ENSO; La Niña; Mirounga leonina; Southern elephant seals; Weaning mass; body mass; El Nino; La Nina; pinniped; weaning; Antarctica; elephant; Mammalia; Mirounga leonina; Phocidae; Pinnipedia; Vertebrata |
| Año: | 2001 |
| Volumen: | 13 |
| Número: | 1 |
| Página de inicio: | 37 |
| Página de fin: | 40 |
| DOI: | http://dx.doi.org/10.1017/S0954102001000062 |
| Título revista: | Antarctic Science |
| Título revista abreviado: | Antarct. Sci. |
| ISSN: | 09541020 |
| CODEN: | ANTSE |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09541020_v13_n1_p37_Vergani |
Referencias:
- Arnbom, T., Fedak, M.A., Boyd, I.L., McConnell, B.J., Variation in weaning mass of pups in relation to maternal mass, post-weaning fast duration, and weaned pup behaviour in southern elephant seals (Mirounga leonina) at South Georgia (1993) Canadian Journal of Zoology, 71, pp. 1772-1781
- Burton, H.R., Arnbom, T., Boyd, I.L., Bester, M., Vergani, D.F., Wilkinson, I., Significant differences in weaning mass of southern elephant seals from five sub-Antarctic islands in relation to population declines (1997) Antarctic communities: Species, structure and survival, pp. 335-338. , BATTAGLIA, B., VALENCIA, J. & WALTON, D.W.H., eds. Cambridge: Cambridge University Press
- Croxall, J.P., Southern Ocean environmental changes: Effects on seabird, seal and whale populations (1992) Philosophical Transactions of the Royal Society, London, B338, pp. 319-328
- Fedak, M.A., Arnbom, T., Boyd, I.L., The influence of the mother's size on the transfer of mass, energy and materials to southern elephant seal pups (1996) Physiological Zoology, 69, pp. 887-911
- Gibbney, L., Delayed implantation in the elephant seal (1953) Nature, 17, pp. 590-591
- Hempel, G., Antarctic marine food webs (1985) Antarctic nutrient cycles and food webs, pp. 266-270. , SIEGFRIED, W.R., CONDY, P.R. & LAWS, R.M., eds. Berlin: Springer
- Smith, R.C., Stammerjohn, S.E., Baker, K.S., Surface air temperature variations in the western Antarctic Peninsula region (1996) Antarctic Research Series, 70, pp. 105-121
- Stanganelli, Z.B., (1996), Searching for causes of southern elephant seal populations decline. MSc thesis, Vrije Universiteit Brussel, Belgium, 82 pp. [Unpublished]; Trenberth, K.E., The definition of El Niño (1997) Bulletin of the American Meteorological Society, 78, pp. 2271-2777
- Vergani, D.F., Aguirre, C., Montalti, D., (1988) Is the unusual presence of Calidris fuscicollis in Antartica an indicator of environmental change?, , CCAMLR Scientific Committee SC-CAMLR-VII/BG/35, Hobart, Australia
- Vergani, D.F., Stanganelli, Z.B., Fluctuations in breeding populations of elephant seals Mirounga leonina at Stranger Point, King George Island 1980-88 (1990) Antarctic ecosystems: Ecological changes and conservation, pp. 241-245. , KERRY, K.R. & HEMPEL, G., eds. Berlin: Springer
- Waluda, C.M., Trathan, P.N., Rodhouse, P.G., Influence of oceanographic variability on recruitment in the Illex argentinus (Cephalopoda: Ommastrephidae) fishery in the South Atlantic Marine Ecology Progress Series
Citas:
---------- APA ----------
Vergani, D.F., Stanganelli, Z.B. & Bilenca, D. (2001) . Weaning mass variation of southern elephant seals at king George Island and its possible relationship with "El Niño" and "La Niña" events. Antarctic Science, 13(1), 37-40.http://dx.doi.org/10.1017/S0954102001000062
---------- CHICAGO ----------
Vergani, D.F., Stanganelli, Z.B., Bilenca, D. "Weaning mass variation of southern elephant seals at king George Island and its possible relationship with "El Niño" and "La Niña" events" . Antarctic Science 13, no. 1 (2001) : 37-40.http://dx.doi.org/10.1017/S0954102001000062
---------- MLA ----------
Vergani, D.F., Stanganelli, Z.B., Bilenca, D. "Weaning mass variation of southern elephant seals at king George Island and its possible relationship with "El Niño" and "La Niña" events" . Antarctic Science, vol. 13, no. 1, 2001, pp. 37-40.http://dx.doi.org/10.1017/S0954102001000062
---------- VANCOUVER ----------
Vergani, D.F., Stanganelli, Z.B., Bilenca, D. Weaning mass variation of southern elephant seals at king George Island and its possible relationship with "El Niño" and "La Niña" events. Antarct. Sci. 2001;13(1):37-40.http://dx.doi.org/10.1017/S0954102001000062
