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Body Size and Condition Dynamics of Pelobates fuscus (Anura, Pelobatidae) Metamorfs under Transphormation of Floodplain Lakes Hydrological Regime

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

The long-term dynamics of size and weight characteristics and body condition of Pelobates fuscus metamorphs in five local populations of the Medveditsa river floodplain (Saratov region) are analyzed. The limits of changes in body length, live and dry weight, and the body condition index (W/SVL) of males and females were established. In 2009 - 2018 the size and weight parameters of the P. fuscus metamorphs had a significant level of interannual variation. The body length was 21.0 to 44.0 mm in males and 22.1 to 44.0 mm in females.

BODY CONDITION DYNAMICS OF PELOBATES FUSCUS (PELOBATIDAE, ANURA) TOADLETS DURING THEIR MIGRATION FROM SPAWNING WATERBODIES

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

The body condition dynamics of Pelobates fuscus toadlets from three local populations (namely, Lakes Sadok, Kruglen’koe and Lebyazhye: the Medveditsa river valley, Saratov region) in the period of their migration from spawning lakes in 2013 is characterized by the bimodality of most parameters. In the population from the waterbody with a constant hydrological regime (Lake Lebyazhye), two peaks of the size and weight traits and body condition of toadlets are formed in this period.