Skip to main content
Log in

The spatial dispersion of seabirds near the South Orkney Islands and the Weddell-Scotia confluence

  • Published:
Polar Biology Aims and scope Submit manuscript

Summary

We used five transects radiating from the South Orkney Islands to describe the distribution and abundance of marine birds during three days in late summer 1983. We found elevated numbers of birds at most crossings of steep physical gradients (fronts), but species were not equally attracted to each front. Our data suggest that the fronts around the South Orkney Islands, especially the Weddell-Scotia Confluence, provide important foraging habitat for birds. Albatrosses and fulmars appeared to aggregate preferentially near fronts overlying the insular slope, whereas Chinstrap Penguins were most abundant over the shelf.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  • Ainley DG, Jacobs SS (1981) Seabird affinities for ocean and ice boundaries in the Antarctic. Deep-Sea Res 28A:1173–1185

    Google Scholar 

  • Andrew NL, Mapstone BD (1987) Sampling and the description of spatial pattern in marine ecology. Annu Rev Oceanogr Mar Biol 25:39–90

    Google Scholar 

  • Brinton E (1985) The oceanographic structure of the eastern Scotia Sea. III. Distributions of euphausiid species and their developmental stages in 1981 in relation to hydrography. Deep-Sea Res 32:1153–1180

    Google Scholar 

  • Croxall JP, Prince PA (1980) Food, feeding ecology and ecological segregation of seabirds at South Georgia. Biol J Linn Soc 14:103–131

    Google Scholar 

  • Deacon GER (1982) Physical and biological zonation in the southern ocean. Deep-Sea Res 29 (1A):1–15

    Google Scholar 

  • Foster TD, Middleton JH (1984) The oceanographic structure of the eastern Scotia Sea. I. Physical oceanography. Deep-Sea Res 31:529–550

    Google Scholar 

  • Griffiths AM, Siegfried WR, Abrams RW (1982) Ecological structure of a pelagic seabird community in the southern ocean. Polar Biol 1:39–46

    Google Scholar 

  • Holm-Hansen O, Chapman AS (1983) Antarctic circumnavigation cruise, 1983. Antarct J US 28:162–163

    Google Scholar 

  • Kinder TH, Hunt GL, Schneider, DC, Schumacher JD (1983) Correlation between seabirds and oceanic fronts around the Pribilof Islands, Alaska. Est, Coast, Shelf Sci 16:309–319

    Google Scholar 

  • Lutjeharms JRE, Walters NM, Allanson BR (1985) Oceanic frontal systems and biological enhancement. In: Siegfried WR, et al (eds) Antarctic nutrient cycles and food webs. Springer, New York, pp 11–21

    Google Scholar 

  • Marin V (1987) The oceanographic structure of the eastern Scota Sea. IV. Distribution of copepod species in relation to hydrography in 1981. Deep-Sea Res 34:105–121

    Google Scholar 

  • Patterson SL, Sievers HA (1980) The Weddell-Scotia Confluence. J Phys Oceanogr 10:1584–1610

    Google Scholar 

  • Pingree RD, Forster, GR, Morrison GK (1974) Turbulent convergent tidal fronts. J Mar Biol Assoc UK 54:469–479

    Google Scholar 

  • Prince PA, Francis MD (1984) Activity budgets of foraging Gray-headed Albatrosses. Condor 86:297–300

    Google Scholar 

  • Prince PA, Morgan RA (1987) Diet and feeding ecology of Procellariiformes. In: Croxall, JP (ed) The feeding ecology of seabirds and their role in the marine ecosystem. Academic Press, London, pp 135–172

    Google Scholar 

  • Schneider DC, Harrison, NM, Hunt GL Jr. (1987) Variation in the occurrence of marine birds at fronts in the Bering Sea. Est, Coast Shelf Sci 25:135–141

    Google Scholar 

  • Tasker ML, Hope-Jones P, Dixon T, Blake BF (1984) Counting birds at sea from ships: a review of methods employed and a suggestion for a standardized approach. Auk 101:567–577

    Google Scholar 

  • Volkman NJ, Presler, P, Trivelpiece WZ (1980) Diets of pygoscelid penguins at King George Island, Antarctica. Condor 82:373–378

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Veit, R.R., Hunt, G.L. The spatial dispersion of seabirds near the South Orkney Islands and the Weddell-Scotia confluence. Polar Biol 11, 637–641 (1992). https://doi.org/10.1007/BF00237959

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00237959

Keywords

Navigation