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Daurian pika
Daurian pikas (''Ochotona dauurica'') are small relatives of rabbits and hares in order Lagomorpha. They are well known for their “barking” alarm call, and for their peculiar habit of making hay to help survive the winter. There are 4 recognized subspecies, ''Ochotona dauurica annectens, O.d. bedfordi, O.d. dauurica, ''and'' O.d. mursavi''. Daurian pikas, like other lagomorphs, are characterized by a secondary set of incisor teeth. They are sexually monomorphic, with thick reddish coats. Pikas have no external tail, and their ears are large and rounded. The auditory bullae, a feature of the skull of daurian pikas are small in comparison to many other pikas. This is thought to be related to their fairly low altitude habitat preference. They are considered keystone species within their habitat.〔Liao, J., Z. Zhang, and N. Liu. "Effects Of Altitudinal Change On The Auditory Bulla In Ochotona Daurica (Mammalia, Lagomorpha)." Journal of zoological systematics and evolutionary research 45.2 (2007): 151-154. Print〕
== Range and habitat ==
Daurian pikas are found throughout Mongolia, southern Russia, Manchuria and in several provinces of China. They live in mountainous regions, and are found at altitudes ranging from 400-4,000 meters above sea level. They are found in desert grasslands, where they are able to burrow in winter and find fresh grass to eat and herbaceous vegetation to store for winter. They sometimes share burrows with Campbell's dwarf hamster, but only in the steppes and semi deserts of northern Manchuria.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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