Аннотация:Data of the long-term study of the structure and size of elk population in the territory of Koryak Okrug (Kamchatka, Russia) are given. The population size during 1967-2011 years varied from 200 to 4.000 individuals. Intensive growth was observed up to and including 1991, and decline was recorded in subsequent years along with the changes in density, age/sex structure, and fertility. The dynamics of elk population in Koryak Okrug is determined by its situation at the north-east edge of the range, under conditions of food deficit, severe climate, excessive hunting (poaching), and predation, mostly by bears and wolves. The hazard of extinction is somewhat reduced by migrations of elks from adjacent areas.
