Brandt’s bat (Myotis brandtii) in the western Ukraine: identification, distribution, ecomorphology

I. Zagorodniuk*, I. Dykyy**

*Taras Shevchenko National University of Luhansk
2, Oboronna St., Luhansk 91011, Ukraine
**Ivan Franko National University of Lviv
4, Hrushevskyi St., Lviv 79005, Ukraine

Sibling species of «whiskered» bats can be relatively easy identified using external characters, but Myotis brandtii often is mix up not only with M. mystacinus s. l., but also with M. daubentonii, i.e. in collections of zoological museums. Brandt’s bat is wide-spread species in the west of Ukraine, and its known geographical range covers all the administrative regions (provinces) and main natural regions, except Polissia and Bukovina. List of species records in Western Ukraine includes 8 localities. Brandt’s bat forms wide sympatry zone just with smallest form of whiskered bats (M. aff. alcathoe), whereas allopatric populations of the latter (M. aurascens) is more similar with M. brandtii. By the level of ecomorphological differentiations, sympatric pair of whiskered bats (brandtii–alcathoe) demonstrates the differences, that is typical for all other pairs of sibling species of mammals in Ukraine (Hutchinson ratio is HR=1,10).

Keywords: sibling species, bats, Myotis brandtii, diagnostics, distribution, ecomorphology, Ukraine

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