1. Elodea canadensis Michaux in the watershed of the Arctic and the Pacific oceans

   • B. B. Bazarova
   • N. M. Pronin

   OriginalPaper 24 December 2010 Pages: 243 - 250

2. Natural and anthropogenic factors of the establishing of invasive fish populations in the aquatic ecosystems of the Vologda Region

   • N. L. Bolotova
   • A. F. Konovalov
   • N. V. Dumnich

   OriginalPaper 24 December 2010 Pages: 251 - 263

3. Distribution of Leptestheria dahalacensis (Rüppel, 1837) (Crustacea, Spinicaudata) in Eastern Europe

   • T. I. Dobrynina

   OriginalPaper 24 December 2010 Pages: 264 - 266

4. Invasion of ecosystem engineer—the European beaver (Castor fiber)—in the Tadenka River basin (Prioksko-Terrasnyi Nature Reserve)

   • N. A. Zav’yalov
   • S. A. Al’bov
   • Z. I. Goryainova

   OriginalPaper 24 December 2010 Pages: 267 - 281

5. First finding of Ponto-Caspian invasive amphipod Chelicorophium curvispinum (G.O. Sars, 1895) (Amphipoda, Crustacea) in Lake Ladoga

   • E. A. Kurashov
   • M. A. Barbashova
   • V. E. Panov

   OriginalPaper 24 December 2010 Pages: 282 - 287

6. Mytilaster lineatus (Gmelin): Long-term dynamics, distribution of invasive mollusk in the Northern Caspian Sea

   • L. V. Malinovskaya
   • T. D. Zinchenko

   OriginalPaper 24 December 2010 Pages: 288 - 295

7. Slider turtle, Trachemys scripta elegans, as invasion threat (Reptilia; Testudines)

   • D. V. Semenov

   OriginalPaper 24 December 2010 Pages: 296 - 300

8. Synanthropic and agrophilic rodents as invasive alien mammals

   • L. A. Khlyap
   • A. A. Warshavsky

   OriginalPaper 24 December 2010 Pages: 301 - 312

9. Distributional patterns and size-weight parameters of Lithoglyphus naticoides (Gastropoda: Hydrobiidae) in the upper reach of the Kuibyshev Reservoir

   • V. A. Yakovlev
   • N. Sh. Akhmetzyanova
   • A. V. Yakovleva

   OriginalPaper 24 December 2010 Pages: 313 - 322