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Abstract:

Sexual differences in maximum diving depths and in the composition of the diet of the Antarctic Shag (Phalacrocorax bransfieldensis) were investigated at Harmony Point, Nelson Island, South Shetland Islands, Antarctica, during the 1995-1996 and 1996-1997 breeding seasons. The mean maximum diving depth estimated by the capillary-tube depth gauge technique was 37.8 m which, when compared with other studies, reflects good food availability in shallow waters around Harmony Point. Females dived significantly deeper than males and also reached the maximum dive depth registered (112.6 m). The analysis of the stomach contents recovered when the individuals with capillary-tubes returned to the nest from foraging trips indicated that males ingested almost exclusively large Notothenia coriiceps specimens, whereas females preyed more intensively on smaller fish. The differences observed suggest that individuals of both sexes partitioned foraging depths and food resources.

Registro:

Documento: Artículo
Título:Sex differences in diving depths and diet of Antarctic Shags at the South Shetland Islands
Autor:Casaux, R.; Favero, M.; Silva, P.; Baroni, A.
Filiación:Instituto Antártico Argentino, Cerrito 1248, (1010) Buenos Aires, Argentina
Departamento de Biología, Fac. de Ciencias Exactas y Naturales, Univ. Nacional de Mar del Plata, Funes 3250, (7600) Mar del Plata, Argentina
Departamento de Ciencias Mannas, Fac. de Ciencias Exactas y Naturales, CIC-Universidad Nac. de Mar del P., Funes 3250, (7600) Mar del Plata, Argentina
Fac. de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín 956, (1113) Buenos Aires, Argentina
Idioma: Español
Año:2001
Volumen:72
Número:1
Página de inicio:22
Página de fin:29
Título revista:Journal of Field Ornithology
Título revista abreviado:J. Field Ornithol.
ISSN:02738570
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02738570_v72_n1_p22_Casaux

Referencias:

  • Barrera-Oro, E., Casaux, R., Validation of age determination in Notothenia coriiceps, by means of a tag-recapture experiment at Potter Cove, South Shetland Islands (1996) Arch. Fish. Mar. Res., 43, pp. 205-216
  • Bernstein, N., Maxson, S., Sexually distinct daily activity patterns of Blue-eyed shags in Antarctica (1984) Condor, 86, pp. 151-156
  • Birt, V., Birt, T., Goulet, D., Lairus, D., Montevecchi, W., Ashmole's halo: Direct evidence for prey depletion by a seabird (1987) Mar. Ecol. Prog. Sen, 40, pp. 205-208
  • Burger, A., Maximum diving depths and underwater foraging in Alcids and Penguins (1991) Studies of High Latitude Seabirds. 1. Behavioural Energetic and Oceanographic Aspects of Seabird Feeding Ecology, pp. 9-15. , W. Montevecchi and A. Gaston, eds. Can. Wildl. Serv., Spec. Publ. 68
  • Burger, A., Wilson, R., Capillary-tube depth gauges for diving animals: An assessment of their accuracy and applicability (1988) J. Field Ornithol., 59, pp. 345-354
  • Casaux, R., (1998) Biología Reproductiva y Ecología Alimentaria del Cormorán Antártico Phalacrocorax Bransfieldensis (Aves, Phalacrocoracidae), , en las Islas Shetland del Sur, Antártida. Ph.D. thesis. University of La Plata, La Plata, Argentina
  • Casaux, R., Barrera-Oro, E., The diet of the Blue-eyed Shag, Phalacrocorax atriceps bransfieldensis feeding in the Bransfield Strait (1993) Antarct. Sci., 5, pp. 335-338
  • Casaux, R., Barrera-Oro, E., (1999) Effect of a Shore-based Sampling Programme on Notothenia Coriiceps Populations, , The CCAMLR Fish Stock Assessment Working Group, Document WG-FSA-99/24, Hobart, Australia
  • Casaux, R., Favero, M., Coria, N., Silva, P., Diet of the imperial cormorant Phalacrocorax atriceps: Comparison of pellets and stomach contents (1997) Mar. Ornithol., 25, pp. 1-4
  • Casaux, R., Mazzotta, A., Barrera-Oro, E., Seasonal aspects of the biology and diet of some nearshore nototheniid fish at Potter Cove, South Shetland Islands (1990) Antarctica. Polar Biol., 11, pp. 63-72
  • Coria, N., Casaux, R., Favero, M., Silva, P., Analysis of the stomach content of the Blue-eyed shag Phalacrocorax atriceps bransfieldensis at Nelson Island, South Shetland Islands (1995) Polar Biol., 15, pp. 349-352
  • Croxall, J., Naito, Y., Kato, A., Rothery, P., Briggs, D., Diving patterns and performance in the Antarctic Blue-eyed shag Phalacrocorax atriceps (1991) J. Zool. Lond. B, 225, pp. 177-199
  • Favero, M., Casaux, R., Silva, P., Barrera-Oro, E., Coria, N., The diet of the Antarctic Shag during summer at Nelson Island, Antarctica (1998) Condor, 100, pp. 112-118
  • Green, K., Williams, R., Biology of the Heard Island shag Phalacrocorax nivalis. 3. Foraging, diet and diving behaviour (1997) Emu, 97, pp. 76-83
  • Hecht, T., A guide to the otoliths of the Southern Ocean fishes (1987) S. Afr. J. Antarct. Res., p. 17
  • Huin, N., Diving depths of White-chinned Petrels (1994) Condor, 96, pp. 1111-1113
  • Kato, A., Croxall, J., Watanuki, Y., Naito, Y., Diving patterns and performance in male and female Blue-eyed cormorants Phalacrocorax atriceps at South Georgia (1992) Mar. Ornithol., 19, pp. 117-129
  • Kato, A., Naito, Y., Watanuki, Y., Shaughnessy, P., Diving pattern and stomach temperatures of foraging King cormorants at Subantarctic Macquarie Island (1998) Condor, 98, pp. 844-848
  • Kato, A., Nishiumi, I., Naito, Y., Sexual differences in the diet of King cormorants at Macquarie Island (1996) Polar Biol., 16, pp. 75-77
  • Koffijberg, K., Van Eerden, M., Sexual dimorphism in the cormorant Phalacrocorax carbo sinensis: Possible implications for differences in structural size (1995) Ardea, 83, pp. 37-46
  • Leopold, M., Van Damme, C., Van Der Veer, H., Diet of cormorants and the impact of cormorant predation on juvenile flatfish in the Dutch Wadden Sea (1998) J. Sea Res., 40, pp. 93-107
  • Orta, J., Family Phalacrocoracidae (cormorants) (1992) Handbook of the Birds of the World, 1, pp. 326-353. , J. del Hoyo, A. Elliot and J. Sargatal, eds. Lynx Editions, Barcelona, Spain
  • Prince, P., Huin, N., Weimerskirch, H., Diving depths of albatrosses at South Georgia and Macquarie Islands (1994) Antarct. Sci., 6, pp. 353-354
  • Prince, P., Jones, M., Maximum dive depths attained by South Georgia diving Pelecanoides georgicus at Bird Island, South Georgia (1992) Antarct. Sci., 4, pp. 433-434
  • Wanless, S., Harris, M., Use of mutually exclusive foraging areas by adjacent colonies of Blue-eyed shags (Phalacrocorax atriceps) at South Georgia (1993) Colonial Waterbirds, 16, pp. 176-182
  • Wanless, S., Harris, M., Morris, J., Diving behaviour and diet of the Blue-eyed shag at South Georgia (1992) Polar Biol., 12, pp. 713-719
  • Wanless, S., Harris, M., Morris, J., Factors affecting daily activity budgets of South Georgian shags during chick rearing at Bird Island, South Georgia (1995) Condor, 97, pp. 550-558
  • Wanless, S., Harris, M., Russell, F., Factors influencing food-load sizes brought in by shags Phalacrocorax aristotelis during chick rearing (1993) Ibis, 135, pp. 19-24
  • Watanuki, Y., Kato, A., Naito, Y., Diving performance of male and female Japanese cormorants (1996) Can. J. Zool., 74, pp. 1098-1109
  • Williams, R., McEldowney, A., A guide to the fish otoliths from waters off the Australian Antarctic Territory, Heard and Macquarie Islands (1990) ANARE Res. Notes, 75, pp. 1-173
  • Wilson, R., Wilson, M., Foraging behaviour in four sympatric cormorants (1988) J. Anim. Ecol., 57, pp. 943-955

Citas:

---------- APA ----------
Casaux, R., Favero, M., Silva, P. & Baroni, A. (2001) . Sex differences in diving depths and diet of Antarctic Shags at the South Shetland Islands . Journal of Field Ornithology, 72(1), 22-29.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02738570_v72_n1_p22_Casaux [ ]
---------- CHICAGO ----------
Casaux, R., Favero, M., Silva, P., Baroni, A. "Sex differences in diving depths and diet of Antarctic Shags at the South Shetland Islands " . Journal of Field Ornithology 72, no. 1 (2001) : 22-29.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02738570_v72_n1_p22_Casaux [ ]
---------- MLA ----------
Casaux, R., Favero, M., Silva, P., Baroni, A. "Sex differences in diving depths and diet of Antarctic Shags at the South Shetland Islands " . Journal of Field Ornithology, vol. 72, no. 1, 2001, pp. 22-29.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02738570_v72_n1_p22_Casaux [ ]
---------- VANCOUVER ----------
Casaux, R., Favero, M., Silva, P., Baroni, A. Sex differences in diving depths and diet of Antarctic Shags at the South Shetland Islands . J. Field Ornithol. 2001;72(1):22-29.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02738570_v72_n1_p22_Casaux [ ]