| 翻訳と辞書 |
| Perote ground squirrel ： ウィキペディア英語版 |
Perote ground squirrel
==Description==
The Perote ground squirrel (Xerospermophilus perotensis) is a species of rodent in the Sciuridae family. It is endemic to Mexico and is currently at risk of extinction. Perote ground squirrels live within the same area as rock squirrels (Spermophilus bariegatus) but they use different microhabitats. In one case it also shares its habitat with the Mexican ground squirrel.〔Valdéz, Manuel, Gerardo Ceballos. "Conservation of Endemic Mammals of Mexico: The Perote Ground Squirrel (Spermophilus Perotensis)." Journal of Mammalogy 78.1 (1997): 74.〕 Perote ground squirrels have similar traits of Caucasian squirrels (X. pallescens) found in the northern Mexican Plateau; however they are larger, have shorter tails and yellow backs. Its skull is relatively narrow with a large braincase and they have heavy, thick teeth.〔Fernández, Jesús A. "Phylogenetics and Biogeography of the Microendemic Rodent(Perote Ground Squirrel) in the Oriental Basin of Mexico." Journal of Mammalogy 93.6 (2012): 1431-439.〕 Perote ground squirrels have two annual cycles, an active phase (March–November) and a hibernation phase (December–February). Some overlap may occur in March and November however.〔Garcia-Dominguez, Jose Arturo, et al. "Present and Future Potential Distribution of the Endemic Perote Ground Squirrel (Xerospermophilus Perotensis) Under Different Climate Change Scenarios." Mammalia (2014): 1-15.〕
Xerospermophilus Perotensis was first described in 1893 and considered its own species. Much research is being done recently, and many scientists think it should be classified as a subspecies of Xerospermophilus Spilosoma. "In either case, and regardless of the position one might adopt around species concepts, it is evident that X.perotensis constitutes an independent and isolated biological entity that has evolved under restricted geographical and ecological contexts as a consequence of recent Pleistocene events".〔
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「Perote ground squirrel」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.
|
|