THE USE OF EXPERIMENTAL TOXICOLOGICAL DATA FOR EVALUATION OF THE STATE OF NATURAL POPULATIONS OF SMALL MAMMALS

Author:

Besel V. S.1,Mukhacheva S. V.1

Affiliation:

1. Federal State Budgetary Institution of Science, Institute of Plant and Animal Ecology, Ural Branch, Russian Academy of Sciences

Abstract

An attempt was made to estimate the dimension of direct toxic effects of exposure to Cd on the basis of researches on reproductive parameters in small mammals in natural populations ( on the example of red-backed vole) inhabiting localities of large-scale non-ferrous metal plants and comparison of results obtained with outcome of toxicological experiments ( chronic exposure of female rats to Cd) ). It was expected that at the existing pollution levels, embryonic losses caused by direct toxic effect of Cd shouldn’t exceed 7%; however actual losses significantly exceeded extrapolation results. Distinctions observed are caused by impact of external and internal factors influencing reproductive potential on fulfillment of reproduction of animals in natural populations.

Publisher

Russian Register of Potentially Hazardous Chemical and Biological Substances

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