 A wisent nursery was established in 1948 to populate the region with European bison from the Belovezhskaya Pushcha and Western Caucasus.There is also a small herd of American bison.The very important to scientists was the fact that Prioksko-Terrasny biosphere reserve is situated on the border of the subzone of European taiga with the admixture of broad-leaved species and the subzone of broad-leaved forests.