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Registros recuperados: 6
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Causes of wild bird mortality in eastern Hokkaido II OAK
柳川, 久; 澁谷, 辰生; Yanagawa, Hisashi; Shibuya, Tatsuo.
Palavras-chave: 鳥類; 死因; 人工物への衝突; 交通事故; 北海道東部.
Ano: 1996 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1402
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The ecology of the red squirrel, Sciurus vulgaris orientis on the campus of Obihiro University 2.Red squirrels crossing a road between Hokkaido Obihiro Agricultural High School and Obihiro University of Agriculture and Veterinary Medicine OAK
濱田, 瑞穂; 柳川, 久.
帯広畜産大学と帯広農業高校間の市道である弥生新道の道路幅が約2 倍に拡幅されることになった.これにより,エゾリスが横断しなければならない距離も約2 倍に増え,道路上の滞在時間が長くなると考えられる.また,今までよりも交通量が増え,車のスピードが増す可能性もある. そうなると,もともとエゾリスの交通事故多発地帯であった帯広畜産大学- 帯広農業高校間で事故の発生確率がより増加する可能性が高い.そこでエゾリスの安全な道路横断ルートを確保するため,帯広市によってリス用の道路横断構造物の設置が計画されている.より利用効率の高いリス用道路横断構造物を目指すため, 2013 年5 月から11 月にかけて,観察者による直接観察とデジタルビデオカメラでの録画によってエゾリスの道路横断を観察した.道路横断個体が確認された際には,横断場所,横断個体数,横断前後の行動,横断方向を記録した.合計30 回の観察を行ない,のべ38 回の道路横断を確認した.その結果,エゾリスが頻繁に横断する場所は,帯広農業高校の西門付近の特定の地点であった.また,道路横断前後の行動として,横断開始地点に 最も近い樹木から地面に降りてきて道路横断後,横断終了地点に最も近い樹木に登る行動が頻繁に観察された.以上のことから,帯広農業高校西門付近に,エゾリスの利用頻度が多い樹木間を繋いだオーバーブリッジを作る事が,エゾリスにとって最も使いやすい道路横断構造物を造る事になるだろう.
Palavras-chave: エゾリス; 道路横断時の行動; リス用道路横断構造物; 交通事故.
Ano: 2015 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4200
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Traffic accidents involving the red squirrel and measures to prevent such accidents in Obihiro City, Hokkaido, Japan OAK
Yanagawa, Hisashi; 柳川, 久.
In Obihiro City, the number of red squirrel, Sciurus vulgaris o ientis, death due to traffic accidents was large. Therefore, a number of measures have been taken to prevent these numerous traffic accidents. The “Red Squirrel Traffic Accident Map” was prepared based on data collected by citizen group and our laboratory of Obihiro University of Agriculture and Veterinary Medicine. Based on this map, warning sign posts indicating “Squirrel Crossing” were installed in 18 locations within the city. In addition, a footbridge for squirrels (Eco-bridge) was constructed. 北海道帯広市においては,交通事故によってエゾリス, Sciurus vulgaris orientis が多数死亡している。そのた め,多くの事故防止対策がこれまで施されて来た。市民 グループ「エゾリスの会」や帯広畜産大学野生動物管理 学研究室の提供したデータによって「エゾリス交通事故 マップ」が作成された。そのマップに基づき,市内の18 か所に「リス横断注意」の標識が設置された。くわえて,...
Palavras-chave: Red squirrel; Sciurus vulgaris orientis; Road kill; Obihiro City; Northern Japan; エゾリス; Sciurus vulgaris orientis; 交通事故; 帯広市; 日本.
Ano: 2005 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/85
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交通事故によるベニヒワの大量死 OAK
柳川, 久; 筒渕, 美幸; Yanagawa, Hisashi; Tsutsubuchi, Miyuki.
Palavras-chave: 交通事故; 死因; ベニヒワ; Carduelis flammea; Collisions with vehicle; Mass mortality.
Ano: 1999 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2298
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北海道東部における中・小型哺乳類, 爬虫類および両生類の交通事故 OAK
Yanagawa, Hisashi; Akisawa, Masae.
Road kills of medium- and small-sized mammals, reptiles and amphibians were surveyed in eastern Hokkaido, northern Japan. Four hundreds and fifty-five carcasses of medium- and small-sized mammals, 17 carcasses of reptiles and 1051 carcasses of amphibians were collected from April 1996 to March 1998. In mammals, the species with the highest number of casualties due to traffic accidents was the Big-clawed Shrew with a total of 152 killed, followed by Red Squirrel (94) and Red Fox (85). Road kills of reptiles were low, with only 17 mortalities of four species. In amphibians, a great majority of the mortalities were Ezo Brown Frogs with 1,044 casualties.
Palavras-chave: Road kill; Mammal; Reptile; Amphibian; Japan; 交通事故; 哺乳類; 爬虫類; 両生類; 日本.
Ano: 2004 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/89
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北海道東部における鳥類の死因 : IV. 十勝地方における交通事故 OAK
筒渕, 美幸; 権田, 久美子; 柳川, 久; TSUTSUBUCHI, Miyuki; GONDA, Kumiko; YANAGAWA, Hisashi.
Palavras-chave: 鳥類; 死因; 交通事故; 十勝地方; 北海道; Wild bird; Causes of mortality; Road mortality; Tokachi district; Hokkaido.
Ano: 1999 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1282
Registros recuperados: 6
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