1. Role of temperature in geographic speciation (An example of rodents)

   • P. A. Panteleev

   OriginalPaper Pages: 69 - 73

2. Multivariate statistical analysis of the response of forest litters to atmospheric pollution

   • S. V. Koptsik
   • G. N. Koptsik

   OriginalPaper Pages: 74 - 81

3. Influence of spruce and pine on the acidity and composition of atmospheric fallout in north taiga forests of an industrially developed region

   • V. V. Nikonov
   • N. V. Lukina

   OriginalPaper Pages: 82 - 89

4. Accumulation and distribution of⁹⁰Sr and¹³⁷Cs in birch in the zone affected by liquid discharge from the Beloyarskaya Nuclear Power Plant

   • P. I. Yushkov

   OriginalPaper Pages: 90 - 95

5. Regulation of numbers of insects on islands of the Kuibyshev Reservoir

   • S. M. Shafigullina

   OriginalPaper Pages: 96 - 100

6. Specific features of distribution of resident bat species (chiroptera: Vespertilionidae) in the eastern East European plain and adjacent regions

   • V. Yu. Il'in
   • D. G. Smirnov

   OriginalPaper Pages: 101 - 107

7. On the population ecology of the gray plover in the northern Yamal Peninsula

   • V. K. Ryabitsev

   OriginalPaper Pages: 108 - 112

8. Chemical composition of water conditioned by crowdedMoina macrocopa (Crustacea: Cladocera)

   • G. S. Kalacheva
   • E. S. Zadereev
   • I. V. Gribovskaya

   OriginalPaper Pages: 113 - 117

9. Effects of ecological factors on the diurnal activity rhythm of Yakutian black-capped marmots (Marmota camtschatica bungei) in the arctic

   • Yu. M. Semenov
   • R. Ramuss
   • M. Leberre

   OriginalPaper Pages: 118 - 122

10. Seed reproduction ofVicia multicaulis Ledeb. (Fabaceae) in the Okhotsk-Kolyma Upland

    • M. A. Vishnyakova
    • T. V. Kilikovskaya
    • E. A. Tikhmenev

    Short Communications Pages: 123 - 125

11. Some data on macrobenthos composition on feeding grounds of the gray whale (Eschrichtius gibbosus Erxl., 1777) on the northeastern Sakhalin shelf

    • E. I. Sobolevskii
    • Yu. M. Yakovlev
    • O. G. Kusakin

    Short Communications Pages: 126 - 128

12. Viability ofTaraxacum officinale Wigg. in populations of the city of Moscow in relation to motor transport pollution

    • N. S. Stvolinskaya

    Short Communications Pages: 129 - 131

13. Specific ecological features of¹³⁷Cs behavior in river floodplains

    • E. V. Prosyannikov
    • A. L. Silaev
    • I. A. Koshelev

    Short Communications Pages: 132 - 135

14. Litter size variation in captive wood lemmings (Myopus schisticolor)

    • M. I. Cheprakov

    Short Communications Pages: 136 - 138

15. Critics and bibliography

    • Yu. A. Zlobin
    • A. V. Zhiryakov

    BookReview Pages: 139 - 141