Short Notes

Phylogeny and distribution of Palaearctic chipmunks Eutamias (Rodentia: Sciuridae)


Abstract


We examined a cranial morphometric data set consisting of 940 specimens, as well as 156 complete sequences of the cytochrome b gene of Eutamias sibiricus. The geographic coordinates of 378 (northern chipmunk: 318; Chinese: 50; Korean: 10) localities were used for distribution modelling. Both morphology and genetics support existence of three subspecies of E. sibiricus: northern E. s. sibiricus, Chinese E. s. senescens, and Korean E. s. barberi. Chinese chipmunks form sister clade to northern chipmunks. Only 5.8% of the specimens have no strong similarities with representatives of their own geographical form in terms of cranial shape; an overwhelming majority of these specimens comes from the region of three taxa distributions junction. We expect two potential contact zones between Chinese and northern subspecies: in the south of the central part of the Great Khingan Range and in the central and south-eastern part of Liaoning, China.

 

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Keywords


Phylogeny; distribution; Tamias

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DOI: http://dx.doi.org/10.4404/hystrix-28.1-12172

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Copyright (c) 2017 Andrey A. Lissovsky, Ekaterina V. Obolenskaya, Deyan Ge, Qisen Yang

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Hystrix, the Italian Journal of Mammalogy ISSN 1825-5272 (electronic version) 0394-1914 (printed version) Impact Factor (2016) 1.479, CiteScore (2016) 3.51.
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