…Also called bighorn sheep, it is a sheep with large spiral horns. The ones distributed from Siberia to northwestern North America were once considered to be one species called bighorn sheep, but in recent years, the ones that live in the Rocky Mountains from southwestern Canada to northern Mexico are often called American bighorn sheep ( O. canadensis ) (illustration), the ones that live from Alaska to British Columbia are called Dall bighorn sheep ( O. dalli ), and those in northeastern Siberia are called Siberian bighorn sheep ( O. nivicola ). They are 76-107 cm tall at the shoulder, and weigh 56-124 kg for males and 33-68 kg for females. … From [Sheep] ...However, some scholars consider these to be the same species, in which case the scientific name of the mouflon would be O. orientalis ), as well as the urial O. vignei (Iran, Kashmir) and the argali O. ammon (Altai, Himalayas), and the American species is the bighorn O. canadensis . The bighorn is sometimes subdivided into three species: the Siberian bighorn O. nivicola (northeastern Siberia), the Dal's bighorn O. dalli (Alaska, Canada), and the American bighorn O. canadensis (southwestern Canada to northern Mexico). [Imaizumi Yoshinori] *Some of the terminology that refers to the "American Bighorn" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…オオツノヒツジともいい,大きならせん状の角をもったヒツジ。シベリアから北アメリカ北西部に分布するものはビッグホーン1種とされたが,近年ではカナダ南西部からメキシコ北部に至るロッキー山脈に生息するもののみをアメリカビッグホーンO.canadensis(英名American bighorn sheep,mountain sheep)(イラスト)とし,アラスカからブリティッシュ・コロンビアに分布するものをダルビッグホーン(ドールビッグホーン,ストーンシープ,ダルシープDall’s sheep)O.dalli,シベリア北東部のものをシベリアビッグホーン(スノーシープ)O.nivicola(英名Siberian bighorn)とすることが多い。肩高76~107cm,体重は雄で56~124kg,雌で33~68kg。… 【ヒツジ(羊)】より…ただしこれらを同一種とみなす学者もあり,その場合はムフロンの学名はO.orientalisとなる)のほか,ウリアルO.vignei(イラン,カシミール)およびアルガリO.ammon(アルタイ,ヒマラヤ)があり,アメリカ系の種にはビッグホーンO.canadensisがある。ビッグホーンは,シベリアビッグホーンO.nivicola(シベリア北東部),ダルビッグホーンO.dalli(アラスカ,カナダ)およびアメリカビッグホーンO.canadensis(カナダ南西部からメキシコ北部まで)の3種に細分されることがある。【今泉 吉典】 ※「アメリカビッグホーン」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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