The evolutionary dynamics of hybrid zones mammals

The processes of hybridization and speciation are analyzed in the paper with the use of different model systems. Empirical data on hybrid zones within three taxa are given in the article. These taxa are the common shrew (Sorex araneus L., 1758), the house mouse (Mus musculus L., 1758) and the red vole (Myodes rutilus Pallas, 1779). The mathematical models, which allow to quantify such factors as ensuring the sustainable conservation of zones of hybridization size and the factors preventing a further spread of "alien" genes are constructed and studied.