Ibragimova Dinara Vladimirovna, Candidate of biological sciences, lecturer, sub-department of biology and biotechnology, Surgut State University (1 Lenina avenue, Surgut, Tyumen region, Russia), E-mail: DV_Ibragimova@mail.ru
Nakonechnyy Nikolay Vladimirovich, Candidate of biological sciences, leading researcher, Surgut State University (1 Lenina avenue, Surgut, Tyumen region, Russia), E-mail: firstname.lastname@example.org
Background. The polymorphism of the moor frog in the northern latitudes of Western Siberia has been studied insufficiently. The available information is fragmentary and does not show the full picture. The purpose of this study: to identify patterns in the distribution of morphs in populations of moor frogs of the Khanty-Mansiysk Autonomous District – Ugra.
Materials and methods. The material for the work served as a collection collected by the authors 2005–2016 years in most of the territory of the KMAD – Ugra. Research covered a vast territory of the district from south to north and from west to east. A total of 1102 moor frogs from 14 populations were examined. The description of morphs was carried out according to the scheme proposed by V. G. Ischenko (1978), statistical processing by the method of L. А. Zhivotovsky (1982) and V. L. Vershinin (2015).
Results. In populations of moor frogs revealed all 11 morph characteristic for the genus Rana. The most rarely encountered is a pure morph. Populations of moor frogs are most polymorphic in middle taiga conditions (in the middle course of the Ob River with tributaries). In total, 75 combinations of morphs were found in the populations of moor frogs on the territory of the Khanty-Mansiysk Autonomous District. Among the identified phenotypes there is no one that would be noted in all studied populations of moor frog. The most common is the phenotype MRSNcNv. The index of similarity of populations of moor frog (r) varies from 0,733 (between the extreme western and eastern populations) to 0,992 (between populations of Berezovsky and Kulumansky reserves). When comparing the diversity of populations by the Morisita index, it was revealed that the extreme western populations of the moor frog have a somewhat detached morphospecies. Its similarity has been established in closely located populations, in floodplain reserves, and disturbed areas.
Conclusions. In the territory of the Khanty-Mansiysk Autonomous Drea – Ugra, the moor frog has a pronounced polymorphism. The greatest diversity of morphs is characterized by populations of territories untouched by economic activity, regardless of latitudinal confinement. The greatest similarity of polymorphism was found in frogs living in the floodplain of the Ob river.
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