Peregontsev Evgeny A. Республика УзбекистанTashkent«Davbioonazarat», State Committee of Nature Protection, 21 a Chashtepa Str., Tashkent 100144, Uzbekistaneperegon2007@mail.ru Author's articles REPTILE COMMUNITIES OF THE KARAKALPAKIAN USTYURT (UZBEKISTAN) Thermal Biology and Dayly Activity of Central Asian Tortoise (Agrionemys horsfieldii) (Testudinidae, Reptilia)