FEATURES OF ORGANIZATION OF POPULATIONS OF HIGHLAND ENDEMIC <i>ANEMONASTRUM BIARMIENSE</i> (JUZ.) HOLUB S. L. IN THE SOUTHERN URALS
The article presents the results of studying the ontogenetic and demographic structure of cenopopulations of highland endemic Anemonastrum biarmiense (Juz.) Holub in the territory of the southern Urals. Populations are numerous, with densities for A. biarmiense from 4.4 to 16.5 ind/m2. Average ontogenetic range is left-sided with a maximum at virginile individuals. All cenopopulations of A. biarmiense are invasive, incomplete. The comparison of indexes of rehabilitation and ageing showed that most of the populations are young, two populations are mature and one population is transient with a large proportion of pregenerative plants. The predominant vegetation type in most populations is highland meadows. In the southern Urals real mountain tundra are found only on the mountain ranges of Iremel and Yamantau, and on lower goltsy vertices (Mashak, Nary, Komardac) grass-moss tundra-like groupings grow. In these communities the dominant one is often Anemonastrum biarmiense (Juz.). A. biarmiense is distributed in subgoltsy altitudinal belt, among tall grass meadows, also comes into mountain tundra region, growing in lichen communities.