The first experience of assessing extinction risk of Butterflies (Lepidoptera, Rhopalocera) on the system of criteria and categories of the International Union for Conservation of Nature on the territory of the Komi Republic
II International scientific-practical conference dedicated to the 105th anniver-sary of birthday of professor Emilia Shtina «Algae and cyanobacteria in natu-ral аnd agricultural ecosystems»