Population dynamics and life history features of three alpine plant species in the Northwestern Caucasusстатья
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Аннотация:Individual specimens of Anemone speciosa. Campanula tridentata and Carum caucasicum were monitored on permanent plots from 1980 to 1993 in alpine lichen heath, Teberda Reserve, The Northwestern Caucasus, Observations were made annually and the flowering and onthogenetic stages were recorded, Onthogenetic composition of the populations was relatively stable with predominance of juvenile plants for C. tridentata and C. caucasicum. All studied species are semirosette polycarpic without vegetative propagation, Mean life expectancy was calculated using transient matrices, According to this approach we estimate life expectancy as more than 60 years for C. tridentata and C. caucasicum, but it was more than 150 years for A. speciosa. Alternation of several years of flowering with 1-2 years without flowering is typical for most of the specimens of all studied plants.