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Spermophilus brevicauda : ウィキペディア英語版 | Spermophilus brevicauda
Brandt’s ground squirrel, (''Spermophilus brevicauda''), is a species of rodent in the Sciuridae family. It is found in eastern Kazakhstan and the northern half of the Xinjiang region of China.〔(Mammal Species of the World )〕 A generic revision of the genus was undertaken in 2007 which helped resolve the uncertainty as to whether this species should be considered a subspecies of ''Spermophilus erythrogenys''. A phylogeny based on molecular sequence data determined that ''S. brevicauda'' was indeed a separate species from ''S. erythrogenys'', and from the other similar species in the genus, ''S. pallidicauda'' and ''S. alashanicus''.〔Harrison, R. G. , S. M. Bogdanowicz , R. S. Hoffmann , E. Yensen , and P. W. Sherman . 2003. ''Phylogeny and evolutionary history of the ground squirrels (Rodentia: Marmotinae)''. Journal of Mammalian Evolution 10:249–276.〕 ==Distribution== Brandt's ground squirrel is found from the Lake Zaysan region in eastern Kazakhstan, southwards and westwards along the Tian Shan mountain range to the vicinity of Almaty, on both sides of the Kazakh-Chinese border.〔Ellerman, J. R. and T. C. S. Morrison-Scott . 1966. ''Checklist of Palearctic and Indian mammals'', 1758–1946. 2nd ed. Trustees of the British Museum (Natural History), London, United Kingdom.〕 The closely related species, ''Spermophilus alashanicus'' from the Alashan Desert and ''Spermophilus pallidicauda'', found in north east Gansu and Inner Mongolia, are allopatric in distribution, separated as they are by geographic boundaries.〔(A Guide to the Mammals of China )〕
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