Ocean and Polar Research

Korea Institute of Ocean Science & Technology (한국해양과학기술원)
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Nest Distribution of Skuas on Barton and Weaver Peninsulas of the King George Island, the Antarctic

남극 킹조지 섬의 바톤 및 위버 반도에서 번식하는 도둑갈매기류의 둥지 분포

  • 김정훈 (경희대학교 생물학과, 한국조류연구소) ;
  • 정호성 (한국해양연구원 부설 극지연구소) ;
  • 김지희 (한국해양연구원 부설 극지연구소) ;
  • 유정칠 (경희대학교 생물학과, 한국조류연구소) ;
  • 안인영 (한국해양연구원 부설 극지연구소)
  • Published : 2005.12.31
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Abstract

The ratio of breeding pairs of brown skuas (Catharacta lonnbergi), south polar skuas (C. maccormicki) and mixed species pairs between Barton and Weaver peninsulas remained the same $(X^2-test,\;X^2=0,503,\;df=2,\;p=0.778)$. The nests of skuas were clustered on Barton, whereas they were distributed randomly on the Weaver peninsula. The distance between brown skua nests, and that of mixed species pair nests were longer than those of south polar skua nests. Brown skua nests were distributed along the coast. Whereas, the nests of mixed species pairs and south polar skuas were found more frequently inland (Kruskal-Wallis, $X^2=11.631$, df=2, p<0.005). There was no interspecific difference in the distances between skua nests and Penguin rookery at Barton (Kruskal-Wallis, $X^2=2.153$, df=2, p=0.341) or at King Sejong Station (ANOVA, F=1.483, df=2, p=0.229). In general, skuas prefer lower locales (<125m above sea level) for their nest building sites. Brown skua nests were distributed mainly on the beach, whereas south polar skua were distributed on the predominant periglacial landforms and till areas $(X^2-test,\;X^2=24.988,\;df=8,\;p<0.005)$.

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References

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