ЭКОЛОГИЧЕСКАЯ ОРГАНИЗАЦИЯ ПРОСТРАНСТВЕННО-ТИПОЛОГИЧЕСКОГО РАЗНООБРАЗИЯ НАСЕЛЕНИЯ ЗЕМНОВОДНЫХ, ПРЕСМЫКАЮЩИХСЯ И МЕЛКИХ МЛЕКОПИТАЮЩИХ ЗАПАДНО-СИБИРСКОЙ РАВНИНЫ

Abstract

The differences in estimates of the relation of the population diversity of amphibians, reptiles and small mammals with environmental factors were analyzed by the species’ abundance and contributions to the Shannon index on the basis of their energy indices, as well as the difference in general representations of the spatial-typological variability of the communities of these animal groups with the West Siberian Plain as an example. Analysis of spatial changes in the diversity of their communities by these indicators is shown to give a similar result, thus illustrating the primary influence of latitudinal differences in heat supply. However, the abundance indices with somewhat lower assessments of the relation are more clearly associated with the moisture content (swamped nature) and trophicity of the biocenoses (especially bogs). The hierarchy of the environmental factors revealed is the same by both indicators, although, by the classification and structural modes, the estimates, as well as the general information content of representations, are somewhat higher when ordering the representations by diversity. These differences are most likely due to the uniformity of the values after taking the logarithm used in the Shannon index.