Birch mice (genus Sicista) are small jumping rodents that resemble mice with long, tufted tails and very long hind legs, allowing for remarkable leaps. They are the only extant members of the family Sminthidae.[1] They are native to Eurasian forests and steppes. All variants possess a long tail of 65 to 110 mm (2.6 to 4.3 in) of length and weigh about 6 to 14 g (0.21 to 0.49 oz). Head and body length of 50 to 90 mm (2.0 to 3.5 in) and hind foot length of 14 to 18 mm (0.55 to 0.71 in).[2] The animal's skin color is light brown or dark-brown to brownish yellow on the upper side and paler on the underside, but generally brownish.[2] Birch mice have a vast geographic distribution in that they inhabit a wide variety of habitats, from semiarid areas to subalpine meadows.[3] Although they have a diverse region of areas, their molecular and anatomical markers have claimed that Birch mice originated from Central Asia.[4]Birch mice have a systematic of the genus of Sicista, they look at the male reproductive organs and cytogenic data.[5]
^Lebedev, Vladimir S.; Bannikova, Anna A.; Pagès, Marie; Pisano, Julie; Michaux, Johan R.; Shenbrot, Georgy I. (2013). "Molecular phylogeny and systematics of Dipodoidea: a test of morphology-based hypotheses". Zoologica Scripta. 42 (3): 231–249. doi:10.1111/zsc.12002. ISSN 1463-6409. S2CID 86686066.
^ abRonald M. Nowak (1999). Walker's mammals of the world. JHU Press. pp. 1329–. ISBN 978-0-8018-5789-8. Retrieved 4 January 2012.
^Cserkész, T., Fülöp, A., Almerekova, S. et al. J Mammal Evol (2019) 26: 147. https://doi.org/10.1007/s10914-017-9409-6
^Cserkész, Tamás; Fülöp, Attila; Almerekova, Shyryn; Kondor, Tamás; Laczkó, Levente; Sramkó, Gábor (March 2019). "Phylogenetic and Morphological Analysis of Birch Mice (Genus Sicista, Family Sminthidae, Rodentia) in the Kazak Cradle with Description of a New Species". Journal of Mammalian Evolution. 26 (1): 147–163. doi:10.1007/s10914-017-9409-6. ISSN 1064-7554.
^ Cserkész, T., Rusin, M., & Sramkó, G. (2016). integrative systematic revision of the European southern birch mice (Rodentia: Sminthidae, Sicista subtilis group). Mammal Review, 46(2), 114–130. https://doi.org/10.1111/mam.12058
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