伊豆諸島三宅島におけるイイジマムシクイの環境選択

DOI
  • TAKAGI Masaoki
    Department of Biology, Faculty of Science, Osaka City University
  • HIGUCHI Hiroyoshi
    Laboratory of Biodiversity Science, School of Agriculture and Life Sciences, The University of Tokyo

書誌事項

タイトル別名
  • Habitat Selection by Ijima's Willow Warbler Phylloscopus ijimae on Miyake-jima, Japan.

抄録

Habitat selection by Ijima's Willow Warblers Phylloscopus ijimae was studied on Miyake-jima (Miyake Island) in the Izu Islands, in the western Pacific Ocean. In order to investigate the relationship between the density of warblers and landscape, we selected three study sites in different landscapes, and compared the density of warblers among them. Forest type did not influence warbler density. The lowest density of warblers was recorded at the site that was heavily fragmented by agricultural fields. Warbler habitat was analysed at a fine scale (50 m x 50 m quadrats), and a stepwise multiple regression analysis was employed to analyse the relationship between warbler density and the vegetation characters. Three factors, tall tree cover, forest edge length, and forest type were adopted as explanatory variables by the analysis. At the fine scale, well-developed continuous laurel forests have the greatest carrying capacity density of for Ijima's Willow Warblers. The results of this study show that Ijima's Willow Warblers are particularly associated with welldeveloped continuous forests, and that laurel forest provides more suitable habitat for them than does deciduous forest.

収録刊行物

キーワード

詳細情報 詳細情報について

  • CRID
    1390282679457484416
  • NII論文ID
    130003564664
  • DOI
    10.3838/jjo.49.113
  • ISSN
    18819710
    0913400X
  • 本文言語コード
    en
  • データソース種別
    • JaLC
    • Crossref
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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