Zoogeography

Animals need adequate resources so that their populations not only survive but thrive. So they seek places that can best provide them. Yet, they face several challenges, while obtaining these resources, e.g., predators, competitors and physical obstacles: mountains and rivers. Some animals are better-equipped to overcome these challenges, and are widely distributed, while others are not. These differences generate uneven pattern of distribution of life on earth.

Problems of the North no.11 is devoted to the biological and ecological bases for the proper utilization, reestablishment, and conservation of wildlife (fur-bearing animals, marine mammals, fish and game birds). It contains much original data on the biology and ecology of individual species (including the polar bear, arctic fox, wild reindeer, and mountain sheep). This research work is also of importance with respect to zoo-geography.