Food habits of the invasive alien Amur hedgehog <i>Erinaceus amurensis</i> in Ito City, Shizuoka Prefecture, Japan

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  • TETSUYA Tatsuyuki
    Department of Human and Animal-Plant Relationships, Graduate School of Agriculture, Tokyo University of Agriculture
  • NISHIYAMA Tadayoshi
    Department of Animal Science, Faculty of Agriculture, Tokyo University of Agriculture
  • TAKANO Maya
    Department of Human and Animal-Plant Relationships, Faculty of Agriculture, Tokyo University of Agriculture
  • ISHII Nobuo
    Division of Mathematical Science, School of Arts and Sciences, Tokyo Woman’s Christian University
  • ANDO Motokazu
    Department of Animal Health Technology, Faculty of Animal Health Technology, Yamazaki Gakuen University

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Other Title
  • 静岡県伊東市における特定外来生物アムールハリネズミ<i>Erinaceus amurensis</i>の食性
  • 静岡県伊東市における特定外来生物アムールハリネズミErinaceus amurensisの食性
  • シズオカケン イトウシ ニ オケル トクテイ ガイライ セイブツ アムールハリネズミ Erinaceus amurensis ノ ショクセイ

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<p>Stomach contents of the Amur hedgehog Erinaceus amurensis, which has been designated as an invasive alien species under the Invasive Alien Species Act in Japan, were investigated. During July-November in 2007, 2008 and 2012, 113 animals in total were captured at three golf courses and one park in Ito City, Shizuoka Prefecture, Japan. Most of the stomach contents was ground-dwelling insects. The average number of food items found in the contents of an individual was 3.2±1.3 (SD). Larvae of Lepidoptera (81.4%), including Spodoptera depravata which are known as a lawn pests, consisted largest proportion of the stomach contents. Coleoptera (74.3%), Carabidae (15.0%), and Scarabaeidae (17.7%) also occupied a large portion. As an opportunistic insectivore, monthly fluctuation in the stomach contents reflected food availability in the habitat. The amount of stomach contents increased from sunset to dawn, indicating that the animals were searching for food throughout the night.</p>

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