Home – Home – Jornals – Contemporary Problems of Ecology 2007 number 4

Comparison of the data characterizing the population structure of mole voles in the central part of the natural habitat (The Ural Region) and at its north-eastern periphery (Novosibirsk Region) shows that habitation under ecologically pessimal conditions does not affect the density of populations and number of members in separate families, but causes a decrease in the lifetime of individuals and, as a consequence, an increase in the reproductive output at the level of a population due to an increase in the number of reproducible females. The features of changes in the occurrence of differently colored phenotypes in the geographic gradient revealed at the north-eastern periphery of the species habitat are similar to those in the central part of the habitat