Diets and Abundances of Three Sympatric Shrew Species in Northern Hokkaido

• OHDACHI Satoshi

  Laboratory of Applied Zoology, Faculty of Agriculture, Hokkaido University

書誌事項

タイトル別名

• Diets and Abundances of Three Sympatric

抄録

The diets and abundances of three sympatric shrew species (Sorex unguiculatus, S. gracillimus, and S. caecutiens), food resource conditions, and environmental characteristics were investigated in three habitat types (riparian forest, wind-shelter belt, and spruce forest), during seasons without snow-cover in northern Hokkaido, Japan. S. unguiculatus outnumbered S. gracillimus in both the riparian forest and wind-shelter belt, and vice versa in the spruce forest. S. caecutiens was rare in the study area. Abundances of S. unguiculatus and S. gracillimus seemed to be unrelated to those of their principal foods. The main prey of S. unguiculatus was earthworms, whereas S. gracillimus and S. caecutiens mainly consumed small terrestrial arthropods. S. unguiculatus tended to consume more earthworms in the spruce forest than in the other habitat types. The earthworm consumption appeared to directly reflect their availability per capita. Food consumption by S. gracillimus tended to be constant regardless of the habitat type.<br>

収録刊行物

• Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｍａｍｍａｌｏｇｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ

  Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｍａｍｍａｌｏｇｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ 20 (1), 69-83, 1995

  一般社団法人 日本哺乳類学会

キーワード

• dietary niche
• abundance
• <i>Sorex</i>
• food availability
• guild structure

詳細情報

• CRID: 1390282679647360384
• NII論文ID: 10018939860
• NII書誌ID: AA1092271X
• DOI: 10.11238/jmammsocjapan.20.69
• ISSN: 18843948
• ISSN: 09141855
• HANDLE: 2115/44659
• NDL書誌ID: 3630139
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3630139
• 本文言語コード: en
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可