1. The Distribution of Vimba Bream Vimba vimba vimba (Actinopterygii: Cyprinidae) in the Unregulated Section of the Lower Volga River

   • V. S. Boldyrev

   OriginalPaper 20 December 2020 Pages: 301 - 309

   

2. Tautoneura polymitusa Oh & Jung, 2016 (Hemiptera: Auchenorrhyncha: Cicadellidae): A New Alien Leafhopper Species in the Fauna of Eastern Europe

   • A. I. Gubin
   • V. V. Martynov
   • T. V. Nikulina

   OriginalPaper 20 December 2020 Pages: 310 - 313

   

3. First Record of Potential Cabbage Pest Aulacobaris cuprirostris (Coleoptera, Curculionidae) in Russia

   • I. A. Zabaluev
   • A. O. Bieńkowski
   • M. J. Orlova-Bienkowskaja

   OriginalPaper 20 December 2020 Pages: 314 - 317

   

4. Distribution of Seeds of the Giant Hogweed (Heracleum sosnowskyi Manden.) in the Winter Period

   • M. G. Krivosheina
   • N. A. Ozerova
   • V. G. Petrosyan

   OriginalPaper 20 December 2020 Pages: 318 - 325

   

5. Expansion Dynamics of Micruropus possolskii Sowinsky, 1915 (Amphipoda, Crustacea) in Lake Ladoga

   • E. A. Kurashov
   • M. S. Trifonova
   • M. A. Barbashova

   OriginalPaper 20 December 2020 Pages: 326 - 331

   

6. Floristic Findings in the Barents Sea: Climatic Trend as a Florogenesis Factor

   • P. R. Makarevich
   • A. A. Oleinik

   OriginalPaper 20 December 2020 Pages: 332 - 340

   

7. The First Data on Parasites of Monkey Goby Neogobius fluviatilis (Perciformes, Gobiidae) in the Saratov Reservoir

   • O. V. Mineeva
   • A. K. Mineev

   OriginalPaper 20 December 2020 Pages: 341 - 347

8. Ectoparasites and Pathogens of Kuhl’s Pipistrelle Pipistrellus kuhlii (Kuhl, 1817) (Chiroptera: Vespertilionidae): Our Own and Published Data Review

   • M. V. Orlova
   • D. G. Smirnov
   • A. V. Zabashta

   OriginalPaper 20 December 2020 Pages: 348 - 362

9. Effect of the Rooting Activity of Wild Boar Sus scrofa on Plant Communities in the Middle Taiga of Western Siberia

   • N. L. Pankova
   • N. I. Markov
   • A. L. Vasina

   OriginalPaper 20 December 2020 Pages: 363 - 371

   

10. History of Baltic Sea Sturgeon Fauna Formation (Review)

    • G. I. Ruban

    OriginalPaper 20 December 2020 Pages: 372 - 378

    

11. The First Finding of Radiolaria Arachnocorys circumtexta Haeckel, 1860 and the Bottom Microalgae in Brown Alga Cystoseira barbata (Stackhouse) C.A. Agardh Epiphyton (Crimea, Black Sea)

    • L. I. Ryabushko

    OriginalPaper 20 December 2020 Pages: 379 - 382

12. Identification of Establishment Risk and Potential Invasiveness of Non-Native Fish Species in Anzali Wetland, Iran, Using the Freshwater Fish Invasiveness Screening Kit (FISK) and Climate Matching Model (CLIMATCH)

    • Seyed Daryoush Moghaddas
    • Asghar Abdoli
    • Hossein Rahmani

    OriginalPaper 20 December 2020 Pages: 383 - 392

    

13. Occurrence Record of and Possible Invasion by Scarlet Sage (Salvia coccinea Buc’hoz ex Etl.) in South Africa

    • Moleseng C. Moshobane
    • Takalani Nelufule
    • Ndivhuwo Shivambu

    OriginalPaper 20 December 2020 Pages: 393 - 398

    

14. Detecting an Alien Reptile through Parasitological Analysis of the Widely Distributed Alien Fish Perccottus glenii

    • A. N. Reshetnikov
    • S. G. Sokolov

    OriginalPaper 20 December 2020 Pages: 399 - 404