Abstract
In the beginning of 19th century, the range (areal) of Panthera tigris altaica included the forest part of the Korean Peninsula, the northern provinces of China, and the left bank of the Amur River in Russia and approached Transbaikalia and Yakutia. By the late 1930s, the number of [...]Abstract
The outflow of the population of young working age from the regions of the Far East and the Far North is a serious constraint on the economic and social development of these regions. Unfavorable climatic working and living conditions, underdeveloped economic and social infrastructure, [...]