Types of areas of Anseriformes birds of the Baikal Basin
The purpose of the study is to develop the system of areographi classification of birds and on its basis to carry out the arealogichesky analysis of fauna of guseobrazny birds of the basin of Lake Baikal. The arealogichesky classification of birds having two-level hierarchical structure is constructed: complexes and groups. The first level - complexes show the fields of distribution of types within the continent or continents. The second level - groups unite types which field of distribution occupies the concrete region in continents, subcontinents with the indication of longitudinal distribution and width and high-rise distribution within particular climatic zones. The two-level system of creation of a typology of areas is prime and convenient in use. On this classification the typology of the areas 34 nesting, the flying and aestivating species of guseobrazny birds of the basin of Lake Baikal is given. They were distributed on four arealogichesky complexes: evraziatsko-North American, afroyevraziatsky, evraziatsky and evraziatsko-аustralian which include 23 longitudinal and width arealogichesky groups. More than a half of types falls into to an evraziatsky complex. On width making the types having subboreal, temperantny and arkto-hypoarctic distribution that is caused by the zonal and landscape and ecoton position of the region providing a variety of conditions of dwelling of birds prevail.