Tsvetkova A. A. RussiaSaratovSaratov branch of A. N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, 24 Rabochaya Str., Saratov 410028, Russiaaatsv@mail.ru Author's articles DYNAMICS OF THE ABUNDANCE AND COMMUNITY STRUCTURE OF SMALL MAMMALS IN THE SARATOV TRANS-VOLGA REGION