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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Small five-toed jerboa ： ウィキペディア英語版 Small five-toed jerboa The small five-toed jerboa (''Allactaga elater'') is a rodent of the Dipodidae family and Allactaga genus, that has five digits.〔Holden, M. E. and Musser, G. G. (2005) "Family Dipodidae", pp. 871–893 in ''Mammal Species of the World a Taxonomic and Geographic Reference''. D. E. Wilson and D. M. Reeder (eds.) Johns Hopkins University Press, Baltimore.〕 They are hopping rodents of the rocky deserts in Asia.〔 They have been found in Afghanistan, Armenia, Azerbaijan, China, Georgia, Iran, Kazakhstan, Pakistan, Russia, Tajikistan, Turkey, and Turkmenistan. They have long hind feet, short forelimbs, and walk upright.〔Lagassé, Paul (2000) "Jerboa." in ''The Columbia Encyclopedia''. 6th ed. New York: Columbia UP.〕 The jerboa body length ranges from 5–15 cm and has a tail ranging from 7–25 cm.〔("Jerboa (rodent)." ) ''Encyclopædia Britannica''. .〕 They have large ears in comparison to their body size and a large tail. The tail assists and serves as support when the jerboa is standing upright.〔Kirmiz, John P. (1962) ''Adaptation to Desert Environment; A Study on the Jerboa, Rat and Man''. London: Butterworths. p. 17.〕 These hopping rodents can reach a speed up to 48 km/hr.〔 The forelimbs of the jerboa serve as a pair of hands for feeding, grooming, etc.〔Kirmiz, John P. (1962) ''Adaptation to Desert Environment; A Study on the Jerboa, Rat and Man''. London: Butterworths. p. 29.〕 The male jerboa is usually larger in size and weight in comparison to the female jerboa.〔 The pelt of the jerboa is either silky or velvety in texture and light in color, the coloration helps camouflage into surroundings to avoid predators. "Its coloration varies from sandy or buff to dark russet or black with pale under parts and a white strip on the hip”.〔 == Adaptation to temperature conditions == Jerboas are adapted to live in the desert, therefore they are called xerocole animals. In hot temperature conditions, they spend most of their day burrowed under sand to avoid the heat.〔Hearst, Michael ''et al'' (2012) ''Unusual Creatures: A Mostly Accurate Account of Some of the Earth's Strangest Animals''. San Francisco: Chronicle Books. ISBN 1452104670.〕 Burrowing under the sand, they evade the heat from the sun, minimizing water loss and avoiding dehydration. In cold temperature conditions, the Small five-toed Jerboa are capable of adjusting their body temperature 1–2 °C from the optimal temperature to minimize heat lost. 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「Small five-toed jerboa」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.