Nom du corpus

Corpus Systématique Animale

Titre du document

Ecological structure of a pelagic seabird community in the Southern Ocean

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Springer (journals)
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Mollusques_v2b_00772, Oiseaux_v2b_02201
  • A. M. Griffiths 1
  • W. R. Siegfried 1
  • R. W. Abrams 1
  • 1) FitzPatrick Institute, University of Cape Town, Private Bag, Rondebosch, South Africa

The pelagic avifauna (excluding penguins) of the African sector (30°S–70°S, 20°W–40°E) of the Southern Ocean is described quantitatively, based on 3,005 10-min observation of seabirds during seven oceanic cruises in April 1979 – April 1980. The avifauna is characterized according to species richness, diversity, abundance and biomass. These indices are correlated with groups of birds ordered into principal diet and feeding-method classes. Birds eating either plankton, cephalopods or a mixed diet accounted for 51, 23 and 22% of the total avifaunal abundance and 22, 49 and 25% of the total biomass, respectively. Piscivores were represented poorly. Planktivores were especially abundant south of the Antarctic Convergence and, to a lesser extent, at the sub-Tropical Convergence. Cephalopod-eaters were most abundant north of the sub-Tropical Convergence. The greatest abundance of omnivores occurred where planktivores and cephalopod-eaters were least abundant. The distribution of the planktivores and cephalopodeaters is related tentatively to the availability of the birds' principal prey.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - marine biology & hydrobiology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - ecologie animale, vegetale et microbienne
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - General Agricultural and Biological Sciences
Catégories WoS
  • 1 - science ; 2 - ecology
  • 1 - science ; 2 - biodiversity conservation
Identifiant ISTEX

Polar Biology

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  • Mollusques
  • Oiseaux
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