書誌事項
- タイトル別名
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- Dietary sources and egg-laying environment of the salamander <i>Hynobius tokyoensis</i> in the Boso Peninsula
- ボウソウ ハントウ ニ オケル トウキョウサンショウウオ セイタイ ノ エサ シゲン オヨビ サンラン カンキョウ ノ ゲンキョウ
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The soil fauna, environment of the egg-laying sites, and habitat vegetation of the salamander Hynobius tokyoensis were investigated in the Boso Peninsula, Chiba Prefecture. The soil fauna expected to be found as a food source of the salamander included Isopoda, Amphipoda, Lithobiomorpha, Haplotaxida, and Geophilomorpha. By individual counts at Chonan town, these fauna accounted for 23.0% of soil fauna individuals in Satsubo and 22.6% in Sakamoto, and 69.5% of total wet weight of soil fauna in Satsubo and 63.3% in Sakamoto. The vegetation around the egg-laying sites was composed of evergreen, coniferous, and mixed forest. Although there was no difference in the abundance of soil fauna between habitat forests at both study sites, a seasonal difference was found: the abundance of soil fauna, especially the Amphipoda, decreased in summer. The most productive waterside environment for egg-laying was the paddy field (more than 30% of total observation sites), followed by waterways (28.6%) and swamp land (19.0%). The number of eggs per clutch averaged 110 throughout the Boso Peninsula, with the geographic variation.
収録刊行物
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- 野生生物保護
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野生生物保護 8 (2), 89-95, 2004
「野生生物と社会」学会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390001205350337024
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- NII論文ID
- 110001817120
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- NII書誌ID
- AA11473258
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- ISSN
- 24331252
- 13418777
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- NDL書誌ID
- 6874033
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可