Title: Nekotorye aspekty vnutripopulyatsionnykh otnoshenii polevki-ekonomki (Microtus oeconomus)
Description: Report of 1971 study conducted in Nero Lake Hollow (Yaroslav region), U.S.S.R. Purpose to test hypothesis that reactions of voles to other voles during encounters of individuals from spatically separated groups differ in behavior from those to familiar neighbors. Translated from Russian.