Morphotype and multivariate analysis of the occlusal pattern of the first lower molar in European and Asian arvicoline species (Rodentia, Microtus, Alexandromys)

  • I. O. Synyavska I. I. Schmalhausen Institute of Zoology, NAS of Ukraine vul. B. Khmelnitskogo, 15, Kyiv, 01030 Ukraine https://orcid.org/0000-0002-7778-6254
  • V. N. Peskov National Museum of Natural History, NAS of Ukraine vul. B. Khmelnitskogo, 15, Kyiv, 01030 Ukraine
DOI: https://doi.org/10.15407/zoo2020.05.383
Keywords: grey voles, Microtus, Alexandromys, first lower molar, morphotype, variation, diversity, PCA

Abstract

We studied the morphotypic variation of the occlusal pattern of m1 in 13 arvicoline species (genera Microtus and Alexandromys). As a result, 22 m1 morphotypes were identified. In Alexandromys, five morphotypes of m1 were found, while in Microtus only seven. The morphological diversity of m1 morphotypes (H) in voles of the genus Microtus is significantly lower compared to Alexandromys. The largest number of m1 morphotypes and the highest morphological diversity of m1 were revealed in the Mongolian vole (14 morphotypes and H = 2.134), while the lowest values (two morphotypes and H = 0.285) occur in the population of M. levis from Orlov Island. An attempt of ecological and taxonomical interpretation of interspecific differences was made based on the m1 morphotypes.

Published
2020-10-23
How to Cite
Synyavska, I. O., & Peskov, V. N. (2020). Morphotype and multivariate analysis of the occlusal pattern of the first lower molar in European and Asian arvicoline species (Rodentia, Microtus, Alexandromys). Zoodiversity, 54(5). https://doi.org/10.15407/zoo2020.05.383
Issue
Vol. 54 No. 5 (2020): Zoodiversity
Section
Morphology

Copyright (c) 2020 I. O. SYNYAVSKA, V. N. PESKOV

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