Biomass Allocation in Boreal Plants with Different Ecological Strategies V. I. P’yankov and L. A. Ivanov p. 1The Ecology of Bilberry (Vaccinium myrtillus L.) and Cowberry (Vaccinium vitis-idaea L.)
in Western Siberia E. E. Timoshok p. 8Migration and Biological Effect of Natural Heavy Radionuclides on Plants V. N. Pozolotina, P. I. Sobakin, I. V. Molchanova, E. N. Karavaeva, and L. N. Mikhailovskaya p. 14
The Role of Spring and Rain Floods in the Development of Zooplankton in Beaver Ponds A. V. Krylov and N. A. Zav’yalov p. 20
Changes in Plankton Abundance, Biomass, and Chemical Composition under the Influence
of the Cooling System of the Beloyarsk Nuclear Power Plant V. P. Guseva and M. Ya. Chebotina p. 24 Specific Features of the Oribatid Fauna in High-Mountain Pine Forests of the Eastern Caucasus
in Relation to Altitudinal Zonality N. A. Gazaliev p. 32Relationships between Pikas (Ochotona, Mammalia) and Vegetation in Tuva I. V. Travina, D. G. Derviz, and P. P. Dmitriev< p. 36 Cyclicity and Some Characteristics of Mass Reproduction of Calliptamus italicus L. in Southern Russia M. V. Stolyarov p. 43
Reproductive Ecology of the Pond Turtle (Emys orbicularis L.) in the Northeastern Part
of the Species Range S. M. Drobenkov p. 49SHORT COMMUNICATIONS
Soil Pollution with Copper and Zinc in the Southeastern Administrative District of Moscow N. N. Ladonina, D. V. Ladonin p. 55
On the Behavior of Desmana moschata L. in Captivity R. I. Nazyrova and N. A. Karpov p. 59
Effect of Polychlorinated Biphenyls on the Antioxidant System and Lipid Peroxidation in Gonads of the Black Sea Scorpionfish Scorpaena porcus L. I. I. Rudneva and N. V. Zherko p. 63
Some Specific Features of Tail Regeneration in the Sand Lizard (Lacerta agilis) V. F. Khabibullin p. 66