Ivanov G. A. RussiaSaratovSaratov State University, 33 Astrakhanskaya Str., Saratov 410012, Russiaecoton@rambler.ru Author's articles BODY CONDITION DYNAMICS OF PELOBATES FUSCUS (PELOBATIDAE, ANURA) TOADLETS DURING THEIR MIGRATION FROM SPAWNING WATERBODIES