| 翻訳と辞書 |
| Canis lupus nubilus ： ウィキペディア英語版 |
Great Plains wolf
The Great Plains wolf (''Canis lupus nubilus''), also known as the buffalo wolf, dusky wolf or loafer, is a subspecies of gray wolf whose range once extended throughout the Great Plains from southern Manitoba and Saskatchewan southward to northern Texas. It is a medium-sized subspecies of variable color, with most specimens being light colored, though black individuals do occur.〔Mech, L. David (1981), ''The Wolf: The Ecology and Behavior of an Endangered Species'', University of Minnesota Press, p. 351, ISBN 0-8166-1026-6〕 Adult males typically weigh 100 lb (45 kg), though exceptionally large individuals weighing 150 lb (68 kg) have been recorded.〔Vernon, B., (1926), A Biological Survey of North Dakota, ''North American Fauna'': Number 49: pp. 150–156.〕 Along with ''C. l. occidentalis'', with which it shares a long and complex border, the Great Plains wolf is the most widely spread North American gray wolf, with at least 11 different synonyms.
It was first described in 1823 by Thomas Say in his writings on Major Stephen Long's expedition to the Great Plains.〔Say, T. et al. (1823) ''(Account of an expedition from Pittsburgh to the Rocky Mountains, performed in the years 1819 and '20 : by order of the Hon. J.C. Calhoun, sec'y of war: under the command of Major Stephen H. Long. From the notes of Major Long, Mr. T. Say, and other gentlemen of the exploring party )''. Philadelphia : H.C. Carey and I. Lea ... p. 169-173.〕 Though currently recognized by taxonomists as a distinct subspecies, ''C. l. nubilus'' is the most difficult North American gray wolf to evaluate, as it has a long history of being in contact and interbreeding with other gray wolf populations (''C. l. baileyi'' and ''C. l. occidentalis''), eastern wolves, red wolves and also hybridizing with eastern/red wolf-coyote hybrids. It has long been suspected that hybrizations with eastern wolves may have resulted in coyote genes being transmitted into the ''C. l. nubilus'' population in the western Great Lake regions since unlike the red wolves and eastern wolves, ''C. l. nubilus'' are not known to directly hybridize with pure coyotes. ''C. l. nubilus'' likely crossed the Bering Land Bridge into North America after the more basal ''C. l. baileyi'', pushing the latter subspecies southwards as it expanded its range. By the last ice age, ''C. l. nubilus'' was gradually displaced from its northwestern range by the newly arrived ''C. l. occidentalis'', a process which has continued till present times.〔
Early texts, including those of Lewis and Clark, indicate that ''C. l. nubilus'' was abundant throughout the Great Plains, outnumbering local coyotes. Alexander Henry mentioned wolves several times in his writings on his trips to North Dakota, noting how they fed extensively on bison carcasses, and were bold around humans, sometimes approaching people and entering tents. He recorded that Native tribes occasionally dug up wolf pups and dug large pitfalls to capture adults, while Maximilian of Wied recorded that they would sell wolf pelts in exchange for two rolls of tobacco each.〔 Though still common by the mid-1800s, a combination of railroad construction, human settlement, the development of stock grazing and the subsequent extermination of bison pushed ''C. l. nubilus'' to the remoter regions of its range where the terrain made agriculture impracticable.〔Glover, A. (1942), (''Extinct and vanishing mammals of the western hemisphere, with the marine species of all the oceans'' ), American Committee for International Wild Life Protection, pp. 219-222.〕
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Great Plains wolf」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|