Habitat Selection by Ijima's Willow Warbler Phylloscopus ijimae on Miyake-jima, Japan.
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- TAKAGI Masaoki
- Department of Biology, Faculty of Science, Osaka City University
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- HIGUCHI Hiroyoshi
- Laboratory of Biodiversity Science, School of Agriculture and Life Sciences, The University of Tokyo
Bibliographic Information
- Other Title
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- 伊豆諸島三宅島におけるイイジマムシクイの環境選択
Description
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.
Journal
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- Japanese Journal of Ornithology
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Japanese Journal of Ornithology 49 (3), 113-117, 2000
The Ornithological Society of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390282679457484416
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- NII Article ID
- 130003564664
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- ISSN
- 18819710
- 0913400X
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed