1. Spatiotemporal dynamics of forest-tundra communities in the polar urals

   • S. G. Shiyatov
   • M. M. Terent’ev
   • V. V. Fomin

   OriginalPaper Pages: 69 - 75

2. Exoautometabolic regulation of transgenes in microorganisms

   • R. A. Pshenichnov
   • I. L. Maslennikova
   • N. M. Nikitina

   OriginalPaper Pages: 76 - 80

3. Morphological-anatomical features of underground organs in some higher plant species in relation to their adaptation to ecological conditions

   • L. G. Tarshis

   OriginalPaper Pages: 81 - 88

4. Estimation of the maximal population frequency of “alien” biotypes taking into account a priori data

   • L. A. Zhivotovsky
   • A. A. Pomortsev
   • V. A. Pukhal’skii

   OriginalPaper Pages: 89 - 92

5. Effects of acidification on aquatic ecosystems

   • T. I. Moiseenko

   OriginalPaper Pages: 93 - 102

6. Response of lithophilic zoobenthos to changes in the granulometric composition of grounds in the metarithral zone of a small river in the foothills of southwestern kamchatka

   • V. N. Leman
   • V. V. Chebanova

   OriginalPaper Pages: 103 - 108

7. The role of interactions between individual animals in the response to heat stress in the freshwater crustacean Daphnia magna

   • T. B. Kalinnikova
   • I. A. Krasnoperova
   • M. Kh. Gainutdinov

   OriginalPaper Pages: 109 - 114

8. Reintroduction of the european bison into the forest ecosystem of the Orlovskoe Poles’e National Park

   • I. P. Belousova
   • K. A. Smirnov
   • I. V. Kudrjavtsev

   OriginalPaper Pages: 115 - 119

9. Structure of the communities of small mammals (micromammalia) in forests on western slopes of the Northern Urals

   • A. V. Bobretsov
   • L. E. Luk’yanova
   • E. A. Poroshin

   OriginalPaper Pages: 120 - 126

10. Root system formation in scotch pine (Pinus sylvestris L.) under conditions of technogenesis (Ufa Industrial Center)

    • G. A. Zaitsev
    • A. Yu. Kulagin

    Short Communications Pages: 127 - 130

11. Early stages of anthropogenic psammophytic series in Forest-Tundra of the transural region

    • N. V. Peshkova
    • N. I. Andreyashkina

    Short Communications Pages: 131 - 134

12. Species composition and population structure of small mammals of the vishera reserve at low abundance

    • V. Yu. Dubrovskii
    • M. V. Roshchin
    • S. A. Cherepushkin

    Short Communications Pages: 135 - 137

13. Histomorphological abnormalities in sterlet from the volga river under present-day ecological conditions

    • I. N. Lepilina
    • A. A. Romanov

    Short Communications Pages: 138 - 141