половая структура

SIZE-WEIGHT AND SEXUAL STRUCTURE OF PELOPHILAX RIDIBUNDUS AND BOMBINA BOMBINA (AMPHIBIA, ANURA) POPULATIONS IN THE FLOODPLANE OF THE MEDVEDITSA RIVER (SARATOV REGION)

Authors: Yermokhin M. V., Tabachishin V. G., Ivanov G. A.

The size, weight and sexual structure of Pelophylax ridibundus and Bombina bombina populations was analyzed during their spawning migrations in 2013 - 2015 in four lakes of the Medveditsa River flood-plane (Saratov Region, Lysogorsky District). The body length of Pelophylax ridibundus males ranged from 29.3 to 101.3 mm (the weight from 2.10 to 152.2 g), and that of females did from 36.1 to 120.2 mm (the weight from 4.45 to 181.0 g); for Bombina bombina males - from 25.4 to 50.6 mm (the weight from 1.06 to 8.5 g), and that of females from 32.1 to 49.7 mm (the weight from 2.64 to 8.43 g).

LONG-TERM DYNAMICS OF THE SIZE-WEIGHT AND SEXUAL STRUCTURE IN POPULATIONS OF PELOBATES FUSCUS (ANURA, PELOBATIDAE) IN THE MEDVEDITSA RIVER VALLEY (SARATOV REGION)

Authors: Yermokhin M. V., Tabachishin V. G., Ivanov G. A.

The size, weight and sexual structure of several populations of mature individuals of the common spadefoot was analyzed in five lakes of the Medveditsa floodplain (Saratov Region, Lysogorsky District) in 2009 - 2016. The body length of the males participating in reproduction ranged from 29.0 to 56.0 mm (the weight from 2.35 to 20.87 g), and that of females ranged from 29.3 to 59.2 mm (the weight from 2.64 to 22.33 g). In most P.