ИСТИНА

On the base of remote sensing materials’ (2000-2015 MODIS archives) analyses and syntheses with the original methodic modern climatic and anthropogenic changes of Russian Arctic biota were evaluated. New technologies of spatial extrapolations, estimations and scenarios for adequate reflection of arctic ecosystems’ transformation confirm modern processes of tundra “greening” due to increasing of grasses’ and bushes’ total coverage and productivity (Tishkov, Krenke, 2015; Belonovskaya et al., 2016; Tishkov et al., 2016). As a result of this large-scale and long-lived phenomenon sharply changes tundra zonal characteristics became evident. Following modern trends of the arctic terrestrial biota key groups could be observed: − decreasing of climatic-adaptive areas of some birds species’ habitats and breeding locations (for example, for waders; Wauchope, et al., 2017); − changes of arctic Anseriformes’ migration’s ways as well as appearance of summer migrations to more productive territories (the phenomena was confirmed with the GPSGSM transducers fixed on birds (Kölzsch, et al., 2016); − changes of the key mammals’ (reindeer, musk ox, polar fox, etc.) area’s limits and abundance dynamic, some boreal predators’ (brown bear, lynx, etc.) invasion into tundra zone; − increasing of some water birds (for example, Anseriformes) population and widening of their habitats’ area; − «smoothing» of various lemmings' species population 3-4-years cycles throughout all tundra zone and therefore decreasing of predators’ (polar fox, seahawk, snowy owl, buteos) population, changing of their migration ways and feeding; − intensification of terrestrial alien animal and plant species invasions due not only for climatic warming but also for new habitats’ development in tundra (Tishkov, 2012). (For marine arctic biota invasions became important factor of destabilizing). 69 Following modern changes of tundra biota, caused by synergism of climatic changes and development of arctic regions, cardinal reconstructions of traditional land use of the North native people take place (reindeer breeding, hunting, nomadic ways, etc.). And “vegetationsoils frozen earth” system’s restructurings caused by tundra “greening” change the fields of the practical geocryology’s using orders.