Ocean and Polar Research

  • 제26권1호
  • /
  • Pages.23-32
  • /
  • 2004
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  • 1598-141X(pISSN)
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  • 2234-7313(eISSN)
한국해양과학기술원 (Korea Institute of Ocean Science & Technology)
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남극 세종기지 주변에 새로이 정착한 현화식물 남극좀새풀 (Deschampsia antarctica)의 개체군 공간분포

Distribution Pattern of Deschampsia antarctica, a Flowering Plant Newly Colonized around King Sejong Station in Antarctica

  • 김지희 (한국해양연구원 극지연구소) ;
  • 정호성 (한국해양연구원 극지연구소)
  • 발행 : 2004.03.31
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초록

As a baseline survey for long-term monitoring on environmental change around the Antarctic King Sejong Station, distribution pattern of Deschampsia antarctica Desv., a flowering plant newly colonized were investigated qualitatively and quantitatively in both austral summer 2002 and 2003. Dispersal of the seeds and vegetative leaves by skuas might lead to the colonization into this area from neighbors in Maxwell Bay. The pioneer populations were observed around ponds and a stream of the Sejong Point in January 2002, and the maximum dispersal area was four times expanded after a year. Most of the populations were formed on the stable and well-drained substrate, which consisted of moss carpet of Sanionia georgico-uncinata (65%) and pebbles (25%), while only a few young individuals were observed on the unstable and watertight silt-sandy area. Especially, S. georgico-uncinata was being effectively utilized as their primary substrate with the soft, coarse and water-contained leaves. Also the perennial mature plants of D. antarctica were mainly formed on the moss carpet rather than pebbles. A few individuals were grown on other mosses of Polytrichastrum alpinum, Bryum pseudotriquetrum, Pohlia cruda, and Conostomum magellanicum and on a liverwort of Cephaloziella varians. We expect that dispersal of D. antarctica and the following succession to grass field will be countinuously and dynamically proceeded in this area, with the characteristics of ecological niche against the initial moss populations, on the similar continuity of environmental conditions. The continuous observations are needed with establishment of database on environmental change of micro-habitats, e.g. the water content and nutrients of soil and the underground temperature and permafrost.

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피인용 문헌

  1. Vegetation of Barton Peninsula in the neighbourhood of King Sejong Station (King George Island, maritime Antarctic) vol.30, pp.7, 2007, https://doi.org/10.1007/s00300-006-0250-2
  2. Carbon and nitrogen isotope composition of vegetation on King George Island, maritime Antarctic vol.32, pp.11, 2009, https://doi.org/10.1007/s00300-009-0659-5
  3. Spatial Distribution Patterns of the Antarctic Hair GrassDeschampsia antarcticain Relation to Environmental Variables on Barton Peninsula, King George Island vol.45, pp.4, 2013, https://doi.org/10.1657/1938-4246-45.4.563
  4. Ecophysiological traits of Antarctic vascular plants: their importance in the responses to climate change vol.217, pp.3, 2016, https://doi.org/10.1007/s11258-016-0585-x
  5. Influence of soil properties on the distribution of Deschampsia antarctica on King George Island, Maritime Antarctica vol.35, pp.11, 2012, https://doi.org/10.1007/s00300-012-1213-4