Factors influencing the number of the western siberian and greater white kuropathan injected
In the period 1993-2019 in the Omsk region, with an average long-term number of n=97.5 thousand individuals/year, the population density of the ptarmigan had average values of 6.91 individuals/10 km2. The share of individuals of the West Siberian subspecies Lagopus lagopus septentrionalis was 52.5% due to the relatively high density (11.2 individuals/10 km2), large subspecies L. l. maior - 47.6% due to low density (2.34 individuals/10 km2). Increases in numbers occur in two - three - five years. A relationship was established between the abundance of both subspecies of ptarmigan and solar activity, very weak inverse for West Siberian (r=0.05) and for large (r=-0.17); with a period of water content, a weak feedback for the West Siberian (r=-0.28) and an average line for a large one (r=0.42); the average feedback with the water level: for the West Siberian (r=-0.38) and for the large (r=-0.41). American mink, light polecat, Siberian weasel, lynx, wild boar, raccoon dog, brown bear, corsac affect the ptarmigan, for which the numbers change with them in antiphase (r=-0.02.-0.66); with pine marten, weasel, wolverine, wolf, fox, badger, sable, ermine, there are no antagonistic changes (r=0.04.0.53).