Cite this article as:
Yermokhin M. V., Tabachishin V. G. MORPHOMETRIC CHARACTERISTICS OF BOMBINA BOMBINA (DISCOGLOSSIDAE, ANURA) IN THE MEDVEDITSA RIVER VALLEY (SARATOV REGION) AND NONINVASIVE SEX DIAGNOSTICS BY SIZE AND WEIGHT TRAITS. Current Studies in Herpetology, 2018, vol. 18, iss. 1, pp. 27-34. DOI: https://doi.org/10.18500/1814-6090-2018-16-1-2-27-34
MORPHOMETRIC CHARACTERISTICS OF BOMBINA BOMBINA (DISCOGLOSSIDAE, ANURA) IN THE MEDVEDITSA RIVER VALLEY (SARATOV REGION) AND NONINVASIVE SEX DIAGNOSTICS BY SIZE AND WEIGHT TRAITS
Morphometric characteristics of Bombina bombina males and females were done. 10 traits were measured and 10 indices were calculated for a sample of B. bombina from the population of the lake Cherepashie (the Medveditsa river valley, Lysogorsky district, Saratov region). Only some traits show significant sex-ual differences in B. bombina. It is shown that in the conditions of degradation of the spawning reservoir network in river valleys, a significant increase in the role of individuals with relatively large dimensions of their hind limbs (mainly femur) occurred in the B. bombina populations. A reliable sex determination of B. bombina in field conditions presents significant difficulties. A method of noninvasive sex determi-nation of B. bombina is proposed, based on analysis of metric and weight traits. The parameters of the discriminating function equation have been determined, which makes it possible to correctly diagnose sex in 95% of individuals. It is recommended to use this method to analyze the sexual structure of B. bombina populations in field conditions.
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