Age Structure in Mass Mortality in the Sika Deer (Cervus nippon) Population on Kinkazan Island, Northern Japan.

• TAKATSUKI Seiki

  <I>Biological Institute, Tohoku University</I>

• MIURA Shingo

  <I>Wildlife Management Laboratory, Forestry and Forest Products Research Institute</I>

• SUZUKI Kazuo

  <I>Biological Institute, Tohoku University</I>

• ITO-SAKAMOTO Kaori

  <I>Department of Biology, Hyogo College of Medicine</I>

書誌事項

タイトル別名

• Age Structure in Mass Mortality in the

抄録

A mass mortality of sika deer (Cervus nippon) population occurred on Kinkazan Island in northern Japan in the spring of 1984, which followed an unusual cold winter. We collected a sample of 240 deer skulls. All deer were aged and sexed except some fawns. The sex ratio of >1 year old deer was 50: 50, but was skewed toward males compared with the sex ratio obtained in the population census in 1983. The oldest age at death was 12.5 years for males and 15.5 years for females. The frequency was low for young age classes. A relative cumulative frequency curve was constructed to examine the age-specific mortality pattern. The curves of both sexes suggested that mortality was relatively high for fawns and low for adult and prime-aged animals, and that mortality was higher and life span was shorter for males than for females.

収録刊行物

• Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｍａｍｍａｌｏｇｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ

  Ｊｏｕｒｎａｌ　ｏｆ　ｔｈｅ　Ｍａｍｍａｌｏｇｉｃａｌ　Ｓｏｃｉｅｔｙ　ｏｆ　Ｊａｐａｎ 15 (2), 91-98, 1991

  一般社団法人 日本哺乳類学会

キーワード

• Sika deer
• <I>Cervus nippon</I>
• Age structure
• Mortality
• Kinkazan Island

詳細情報

• CRID: 1390001204674067200
• NII論文ID: 130004087250
• NII論文ID: 40005336949
• NII書誌ID: AA1092271X
• DOI: 10.11238/jmammsocjapan1987.15.91
• ISSN: 18843948
• ISSN: 09141855
• NDL書誌ID: 3721978
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3721978
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可