Vol. 12, No. 3, 2021
Distribution of Sosnowsky’s Hogweed (Heracleum sosnowskyi Manden.) at the Southern Border of Its Secondary Range in European Russia
p. 233 abstract
The Materials to the “Black Book” of the Flora of the Crimean Peninsula
p. 244 abstract
Finding of the Bark Beetle Polygraphus proximus Blandford, 1894 (Coleoptera, Curculionidae: Scolytinae) in Udmurtia
p. 258 abstract
Lake Maslozero Ecosystem and the Results of the Release of the Smelt Osmerus eperlanus into the Lake
p. 264 abstract
First Finding of Western Conifer Seed Bug Leptoglossus occidentalis Heid. (Heteroptera, Coreidae) in Armenia
p. 274 abstract
Wolffia arrhiza (L.) Horkel ex Wimm. Record in Novosibirsk Region (Western Siberia)—The First in Asian Russia
p. 277 abstract
First Findings of Dreissena polymorpha (Pallas, 1771) in the Iriklinsky Reservoir
p. 283 abstract
Dynamics of the Distribution of Molipteryx fuliginosa (Uhler) (Heteroptera, Coreidae) in the Russian Far East
p. 289 abstract
New Findings of Steppe Species of Crickets Oecanthus pellucens (Scopoli, 1763) and Modicogryllus frontalis (Fieber, 1844) (Orthoptera, Ensifera, Gryllidae) in Belarus
p. 299 abstract
Spread Rate of Alien Amphipods and Mysids in the Main Rivers of Belarus
p. 302 abstract
Polydora websteri—A Commensal of Anadara kagoshimensis in the Azov-Black Sea Region
p. 309 abstract
Alien Species in Communities of Class Festuco-Puccinellietea Soό ex Vicherek 1973 in Southeastern Europe
p. 317 abstract
New Records of Liparis kumokiri Group (Orchidaceae) in Eurasia Suggest Its Recent Dispersal from East Asia
p. 326 abstract