1. Impact of Solidago canadensis L. on Species Diversity of Plant Communities at Different Spatial Scale

   • V. V. Akatov
   • T. V. Akatova
   • S. G. Chefranov

   OriginalPaper 31 March 2021 Pages: 1 - 10

   

2. Distribution of Alien Polychaetes in Biotopes of the Northern Part of the Black Sea

   • N. A. Boltachova
   • E. V. Lisitskaya
   • D. V. Podzorova

   OriginalPaper 31 March 2021 Pages: 11 - 26

   

3. Stomatal Structure in Symphyotrichum Nees Species as an Additional Index of Invasiveness

   • Yu. K. Vinogradova
   • O. V. Grygorieva
   • E. N. Vergun

   OriginalPaper 31 March 2021 Pages: 27 - 35

   

4. Morphological and Genetic Traits of the First Invasive Population of the Asiatic Clam Corbicula fluminea (O.F. Müller, 1774) Naturalized in the Volga River Basin

   • I. S. Voroshilova
   • E. G. Pryanichnikova
   • E. M. Kurina

   OriginalPaper 31 March 2021 Pages: 36 - 43

   

5. Distribution of Alien Species of Woodlice (Crustacea, Isopoda, Oniscidea) in the Russian Far East

   • K. B. Gongalsky
   • D. M. Kuznetsova

   OriginalPaper 31 March 2021 Pages: 44 - 49

   

6. Finding of Desert Shield Bug Brachynema germari (Heteroptera: Pentatomidae) in the Voronezh Nature Reserve (Central Russia)

   • V. M. Emets

   OriginalPaper 31 March 2021 Pages: 50 - 52

   

7. The Influence of Number of Generations on the Dynamics of Lime Leaf Miner Phyllonorycter issikii (Kumata, 1963) (Lepidoptera, Gracillariidae) in Udmurtia

   • I. V. Ermolaev
   • T. B. Domrachev

   OriginalPaper 31 March 2021 Pages: 53 - 66

   

8. “Journey to the West”: Three Phylogenetic Lineages Contributed to the Invasion of Stone Moroko, Pseudorasbora parva (Actinopterygii: Cyprinidae)

   • D. P. Karabanov
   • Yu. V. Kodukhova
   • A. A. Makhrov

   OriginalPaper 31 March 2021 Pages: 67 - 78

   

9. The First Record of the Alien Ladybug Harmonia axyridis Pall. 1773 (Coleoptera, Coccinellidae) in Azerbaijan

   • T. A. Mogilevich

   OriginalPaper 31 March 2021 Pages: 79 - 82

   

10. The Parasite Fauna of the Round Goby Neogobius melanostomus (Perciformes, Gobiidae) in the Kuybyshev Reservoir (Middle Volga)

    • O. V. Mineeva
    • D. Yu. Semenov

    OriginalPaper 31 March 2021 Pages: 83 - 93

11. Two Alien Species of Soldier Flies (Diptera: Stratiomyidae) on the Black Sea Coast of Russia

    • E. P. Nartshuk
    • E. A. Khachikov
    • E. A. Poushkova

    OriginalPaper 31 March 2021 Pages: 94 - 101

    

12. Proliferation of Alien Plant Species in Forest Communities of the Khosta Yew–Boxwood Grove of the Caucasus Nature Reserve after the Destruction of Buxus colchica Pojark

    • R. H. Pshegusov
    • V. A. Chadaeva

    OriginalPaper 31 March 2021 Pages: 102 - 115

    

13. Reproductive Possibilities of Alien Species Fraxinus pennsylvanica Marsh. in the Forest Stands of the City of Bryansk

    • M. S. Kholenko
    • Yu. A. Semenishchenkov

    OriginalPaper 31 March 2021 Pages: 116 - 125