Home – Home – Jornals – Contemporary Problems of Ecology 2022 number 6

The ecological patterns of landscape differentiation of the fauna and bird population of the northern taiga of Central Siberia at altitudes of 100-1000 m a. s. l. have been analyzed. m. In 2002-2020 surveyed flat right bank of the river basin Lena and low-mountain areas of the Putorana Plateau and Vilyui Plateau. The route accounting method was used on transects of unlimited width. The commonality of the taxonomic structure and species composition of the nesting avifauna, numbering 156 species, is high. A number of species ( n = 14) were first recorded nesting at a distance of 100-250 km from the known boundaries of their ranges. The taxonomic structure of the nesting avifauna corresponds to the zonal and landscape features of the taiga of North Asia with the dominance of species from the orders of passeriformes, shorebirds, anseriformes, falconiformes, totaling 83 %. The avifauna of the northern taiga of Central Siberia is formed in a system of common zonal and altitudinal-belt patterns, unites species ecologically associated with forest and shrub vegetation, meadow, water, and mountain habitats. The most significant in the formation of the avifauna are the species of the Siberian (40 %) fauna type, boreal and boreal-hypoarctic zonal-landscape groups (41 %). The average population density of birds in the northern taiga larch forests is 261 ind./kmІ, in aquatic-semiaquatic habitats 8.5 ind./1 km of coastline. The bird population of larch forests is dominated numerically by the kuksha, willow, talovka, zarnichka, brown thrush, finch, common tap dance, baby bunting. Among the dominants of water and semiaquatic habitats there are 17 species, incl. wigeon, common teal, common tern, carrier, fifi, haley, glaucous gull, arctic tern.