Diets and Abundances of Three Sympatric Shrew Species in Northern Hokkaido

この論文にアクセスする

この論文をさがす

著者

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.

The diets and abundances of three sympatric shrew species (<i>Sorex unguiculatus</i>, <i>S. gracillimus</i>, and <i>S. caecutiens</i>), 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. <i>S. unguiculatus</i> outnumbered <i>S. gracillimus</i> in both the riparian forest and wind-shelter belt, and <i>vice versa</i> in the spruce forest. <i>S. caecutiens</i> was rare in the study area. Abundances of <i>S. unguiculatus</i> and <i>S. gracillimus</i> seemed to be unrelated to those of their principal foods. The main prey of <i>S. unguiculatus</i> was earthworms, whereas <i>S. gracillimus</i> and <i>S. caecutiens</i> mainly consumed small terrestrial arthropods. <i>S. unguiculatus</i> 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 <i>S. gracillimus</i> 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, 1995-06-01 

    一般社団法人 日本哺乳類学会

参考文献:  37件

参考文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

被引用文献:  3件

被引用文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

各種コード

  • NII論文ID(NAID)
    10018939860
  • NII書誌ID(NCID)
    AA1092271X
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09141855
  • NDL 記事登録ID
    3630139
  • NDL 刊行物分類
    RA48(生態--動物)
  • NDL 雑誌分類
    ZR4(科学技術--生物学--動物)
  • NDL 請求記号
    Z54-G149
  • データ提供元
    CJP書誌  CJP引用  NDL  IR  J-STAGE 
ページトップへ