Abstract
During January and February of 2002 and 2003, we studied the diet of the Antarctic Tern Sterna vittata gaini at two colonies in Nelson Island, South Shetland Islands, by identifying the prey fed to chicks by breeders. The fish Notothenia coriiceps was the main prey in both seasons, followed by the myctophid Electrona antarctica, Antarctic krill Euphausia superba and gammarid amphipods. The contribution of fish to the diet increased as chicks grew older. Fish and amphipods were brought to chicks during the day, whereas adults brought Antarctic krill at sunrise and sunset. Both the duration of the feeding trips and the number of trips per foraging bout varied according to the type of prey caught. Preliminary information suggests that, among other causes, the foraging strategy is strongly influenced by the predation pressure of skuas on chicks. Results are compared with the only two previous study on the diet of the Antarctic Tern at the South Shetland Islands.
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References
Altmann J (1974) Observational study of behaviour: sampling methods. Behaviour 49(3–4):227–267
Barrera-Oro E, Marschoff E, Casaux R (2000) Trends in relative abundance of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps at South Shetland Islands, after commercial fishing in the area. CCAMLR Sci 7:43–52
Casaux R, Soave G, Coria N (1998) Lanternfish (Myctophidae) in the diet of the Cape petrel Daption capense at the South Shetland and South Orkney Islands, Antarctica. Polar Biol 20:364–366
Casaux R, Baroni A, Arrighetti F, Ramón A, Carlini A (2003) Geographical variation in the diet of the Antarctic fur seal Arctocephalus gazella. Polar Biology 26:753–758
Cordier J, Mendez A, Mougin J, Visbeek G (1983) Les oiseaux de la baie d’Espérance, Péninsule antarctique (63° 24′S, 56° 59′W). L’Oiseau et R.F.O. 53:371–390
Furness R, Greenwood J (1993) Birds as monitors of environmental change. Chapman and Hall, London, 356 pp
Gochfeld M, Burger J (1996) Family Sternidae (Terns). In: del Hoyo J, Elliot A, Sargatal J (eds) Handbook of the birds of the world, vol. 3. Lynx Editions, Barcelona, 624–667
Howes L, Montevecchi W (1993) Population trends and interactions among terns and gulls in Gros Morne National Park, Newfoundland. Can J Zool 71:1516–1520
Hulley P (1990) Family Myctophidae (Lanternfishes). In: Gon O, Heemstra PC (eds) Fishes of the Southern Ocean. J.L.B. Smith Institute of Ichthyology, Grahamstown, pp 146–178
Hulsman K, Langham N, Bluhdorn H (1989) Factors affecting the diet of Crested terns, Sterna bergii. Aust Wildl Res 16:475–489
Jablonski B (1995) Distribution, abundance and biology of the Antarctic Tern Sterna vittata Gmelin, 1789 on King George Island (South Shetland Islands). Acta Zool Cracoviensia 29:117–186
Jazdzewski K, Konopacka A (1999) Necrophagous lysianassoid Amphipoda in the diet of Antarctic tern at King George Island, Antarctica. Antarct Sci 11:316–321
Kock K (1992) Antarctic fish and fisheries. Cambridge University Press, Cambridge, 359 pp
Milius N (2000) The birds of Rothera, Adelaide Island, Antarctic Peninsula. Mar Ornithol 28:63–67
Parmelee D, Maxson S (1975) The Antarctic Terns of Anvers Island. Living Bird 13:233–250
Peter H, Kaiser M, Gebauer A (1988) Untersunchungen an Vögel und Robben auf King George Island (South Shetland Islands, Antarktis). Geod Geoph Veröff 1:1–127
Silva P, Favero M, Casaux R, Baroni A (1998) The status of breeding birds at Harmony Point, Nelson Island, Antarctica in summer 1995/96. Mar Ornithol 26:75–78
Acknowledgments
We thank Dr. D. Ainley, Dr. M. Kaiser and one anonimous referee who critically commented on the manuscript. This is the contribution to the Laboratorio de Investigaciones en Ecología y Sistemática Animal (LIESA) N° 24.
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Casaux, R., Baroni, A., Ramón, A. et al. Aspects of the foraging behaviour of the Antarctic Tern Sterna vittata gaini at Harmony Point, South Shetland Islands. Polar Biol 31, 327–331 (2008). https://doi.org/10.1007/s00300-007-0362-3
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DOI: https://doi.org/10.1007/s00300-007-0362-3