Using the statistical data for 2004-2018, the dynamics of forest fires and the number of hunting and fishing fauna in Irkutsk region and in one of its specially protected natural area - Olkhon district as part of the Baikal national Park were studied. Against the background of the positive dynamics of forest fire indicators, the dependence of the number of animals on their family, species and fires in adjacent areas and the region as a whole was established. The linear correlations confirmed the positive impact of fires on the population of deer (Cervidae), canids (Canidae), cats (Felidae), bears (Ursidae) and pheasants (Phasianidae), determined by the migration of animals from mountainous areas. The unstable and negative population dynamics was revealed for the Kunya family (Mustelidae).