Growth pattern and seasonal weight changes of the feral raccoon (Procyon lotor) in Hokkaido, Japan
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概要
- 論文の詳細を見る
The growth pattern and seasonal weight fluctuations of feral raccoons in Hokkaido were evaluated between 1999 and 2001. The growth rates in body length and body weight were described for juveniles (young of the year) and yearlings (animals born in the previous season) using the Gompertz growth model. The asymptotic body sizes for males were greater than those for females. Young raccoons born during spring in the study area could potentially grow up to their asymptotic size at the beginning of their first winter, but they would not reach their full adult sizes until at least their second fall. Adult raccoons (animals ≥ 2-year-old) had seasonal weight fluctuations with annual weight loss of 25% to 28% of mean maximum weights in west-central Hokkaido, but these result would be an underestimate of the degree of annual weight fluctuations. Juvenile raccoons can be distinguished from the older animals by measuring body length or body weight during fall in Hokkaido.
- 北海道大学の論文
- 2003-02-28
著者
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ASAKAWA Mitsuhiko
Department of Pathobiology, School of Veterinary Medicine, Rakuno Gakuen University
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大泰司 紀之
酪農学園大学環境システム学部生命環境学科
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SUZUKI Masatsugu
Laboratory of Zoo and Wildlife Medicine, Department of Veterinary Medicine, Faculty of Applied Biolo
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Matsuura Yukiko
Field Science Center For Northern Biosphere Hokkaido University
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Matsuura Yukiko
北海道大学 獣医学研究科
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Matsuura Yukiko
Laboratory Of Wildlife Biology Department Of Environmental Veterinary Science Graduate School Of Vet
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Suzuki Masatsugu
北海道大学 獣医学研究科野生動物学
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大泰 司紀之
北海道大学大学院獣医学研究科生態学教室
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淺野 玄
兵庫県森林動物研究センター
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大泰司 紀之
酪農学園大学環境システム学部野生動物管理学研究室
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Sasaki Motoki
Laboratory Of Veterinary Anatomy Department Of Basic Veterinary Medicine Obihiro University Of Agric
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Ohtaishi Noriyuki
Laboratory of Wildlife Biology, Graduate School of Veterinary Medicine, Hokkaido University
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ASANO Makoto
Laboratory of Zoo and Wildlife Medicine, Faculty of Applied Biological Sciences, Gifu University
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Ikeda Toru
Research Group Of Regional Sciences Graduate School Of Letters Hokkaido University
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浅野 玄
岐阜大学大学院連合獣医学研究科:岐阜大学大学院応用生物科学部野生動物医学分野
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Matsuura Yukiko
Graduate School Of Veterinary Medicine Hokkaido University
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Suzuki Masatsugu
Graduate School Of Veterinary Medicine Hokkaido University
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Suzuki Masatsugu
Laboratory Of Wildlife Biology Department Of Environmental Veterinary Science Graduate School Of Vet
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Sasaki M
Laboratory Of Veterinary Anatomy Department Of Basic Veterinary Medicine Obihiro University Of Agric
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大泰司 紀之
口腔解剖学第1講座
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Matoba Yohei
Department of Veterinary Parasitology (Wildlife Zoology), School of Veterinary Medicine, Rakuno Gaku
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Matoba Y
Department Of Parasitology (wildlife Zoology) School Of Veterinary Medicine Rakuno Gakuen University
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Matoba Yohei
Department Of Veterinary Parasitology (wildlife Zoology) School Of Veterinary Medicine Rakuno Gakuen
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Asano Makoto
United Graduate School Of Veterinary Science Gifu University
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Suzuki M
Hokkaido Univ. Sapporo Jpn
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Suzuki M
Gunma Univ. School Of Medicine Maebashi Jpn
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Ohtaishi Noriyuki
Laboratory Of Wildlife Biology The Graduate School Of Veterinary Medicine Hokkaido University
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Ohtaishi Noriyuki
Laboratory Of Wildlife Biology Department Of Environmental Veterinary Science Graduate School Of Vet
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Ohtaishi Noriyuki
Laboratory Of Wildlife Biology Department Of Environmental Veterinary Sciences The Graduate School O
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Ohtaishi Noriyuki
Department Of Environmental Veterinary Science Graduate School Of Veterinary Medicine Hokkaido Unive
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Asakawa Mitsuhiko
Department Of Pathobiology School Of Veterinary Medicine Rakuno Gakuen University
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Sasaki Motoki
Laboratory Of Veterinary Anatomy Department Of Basic Veterinary Medicine Obihiro University Of Agric
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Asano Makoto
Department Of Veterinary Surgery Faculty Of Veterinary Medicine Hokkaido University
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Asano Makoto
Laboratory Of Entomology Tokyo University Of Agriculture
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淺野 玄
岐阜大学応用生物科学部獣医学課程
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ASAKAWA MITSUHIKO
Department of Parasitology (Wildlife Zoology), School of Veterinary Medicine, Rakuno Gakuen University
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