Home Range and Habitat Use of the Exotic Turtle Chelydra serpentina in the Inbanuma Basin, Chiba Prefecture, Central Japan

• KOBAYASHI Raita

  Graduate School of Agricultural and Life Sciences, The University of Tokyo

• HASEGAWA Masami

  Department of Biology, Faculty of Science, Toho University

• MIYASHITA Tadashi

  Graduate School of Agricultural and Life Sciences, The University of Tokyo

抄録

Home-range size and habitat use of the introduced snapping turtle (Chelydra serpentina) were examined in an agricultural landscape of the Inbanuma Basin, central Japan. Twenty-eight subadult and adult turtles were tracked in 2002 and 2003 using radio telemetry. Home-range size did not significantly differ between sexes and was not affected by tracking period or the body size. Mean home-range sizes estimated using 50% kernel, 95% kernel, and maximum stream length were 0.9 ha, 3.9 ha, and 393 m, respectively. Habitat used by large turtles during the active season was restricted to the stream. Smaller turtles tended to use agricultural areas, such as paddy fields and ditches. The frequency of the stream use was low during the overwintering period. Considering that the adult mortality greatly affects population dynamics, introduced snapping turtles could be eradicated by trapping in streams.<br>

収録刊行物

• Ｃｕｒｒｅｎｔ　ｈｅｒｐｅｔｏｌｏｇｙ

  Ｃｕｒｒｅｎｔ　ｈｅｒｐｅｔｏｌｏｇｙ 25 (2), 47-55, 2006

  日本爬虫両棲類学会

キーワード

• Agricultural landscape
• Invasive species
• Management
• Paddy field
• Radio telemetry

詳細情報

• CRID: 1390282679690188928
• NII論文ID: 130000067874
• NII書誌ID: AA12246863
• DOI: 10.3105/1345-5834(2006)25[47:hrahuo]2.0.co;2
• ISSN: 18811019
• ISSN: 13455834
• NDL書誌ID: 8594753
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8594753
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可