Russian Journal of Ecology, 2000, V 31, N 3.

The Origin and Development of Nature Conservation: A View 
from the Boundary between Millennia
G. S. Rozenberg and G. P. Krasnoshchekov 
p. 145  

Sustainable Development-Food Security-Agroecology
B. M. Mirkin and R. M. Khaziakhmetov 
p. 162  

Pathological Tree-Ring Structures in Siberian Juniper 
(Juniperus sibirica Burgsd.) and Their Use for Reconstructing 
Extreme Climatic Events
R. M. Hantemirov, L. A. Gorlanova, and S. G. Shiyatov 
p. 167

Effects of Heavy Metal Pollution on the Ecological and Biological
Characteristics of Common Chernozem
S. I. Kolesnikov, K. Sh. Kazeev, and V. F. Val'kov 
p. 174

Concentrations of Long-lived Artificial Radionuclides in the 
Moss-Lichen Cover of Mountain Plant Communities
M. G. Nifontova 
p. 182  

Analysis of Sensitivity of Different Criteria in 
Cytogenetic Monitoring
A. K. Butorina and V. N. Kalaev 
p. 186  

Trophic Structure of Ecosystems and Ecotoxicology of Soil Organisms
A. D. Pokarzhevskii, N. M. Van Straalen, Zh. V. Filimonova, A. S.
Zaitsev, and R. O. Butovskii 
p. 190  

Odontological Characteristics of European Brown Bears
from the Central Forest Biosphere Nature Reserve
P. N. Korablev, E. Chapman, V. S. Pazhetnov, and V. V. Bologov
p. 198  

The Influence of Food Change on the Development
of Archips podana Sc. (Lepidoptera: Tortricidae), 
a Polyphagous Insect
A. F. Safonkin p. 203 


Short Communications


A Role of Chemical Signals in the Induction of Spawning Migration
in Chum Salmon Oncorhynchus keta (Waldbaum)
V. A. Ostroumov 
p. 207  

Estimation of Atmospheric Air Toxicity Using Microscopic Algae
R. R. Kabirov, N. V. Sukhanova, and L. S. Khaibullina 
p. 209

Long-Term Monitoring of Sea Water Pollution by Heavy Metals in Northern
Primorye
with the Use of Brown Algae
S. I. Kozhenkova, N. K. Khristoforova, and E. N. Chernova 
p. 211

The Effect of the Pulse Electromagnetic Field on the Frequencies of
Micronuclei Induced by Lead in the Red Blood Cells of Anuran Larvae
V. I. Kryukov 
p. 216