Strength and age structure of populations of rare and endemic plant Ikonnikovia kaufmanniana (regel) lincz.

Abstract

Authors on the basis of research strength and age structure of the populations of the three and nine cenopopulations rare and endemic species Ikonnikovia kaufmanniana have established that in the age structure of populations 1 and 2 the a maximum constitute the virginal individuals and in the population 3 – generative individuals. Cenopopulations analysis has shown that in cenopopulations 2,3,5,6 and 8 the virginal individuals were in a maximum amount, whereas in cenopopulations 1,4,7,9 – the young generative individuals. Juvenile individuals were absent in cenopopulations 1-3, 6,7 and 9, and the percentage of their participation in cenopopulations 4 and 5 was 0,6% and 0,5% (respectively) and in cenopopulation 8 – 2.6%. Immature, virginal, young generative, generative mature, old generative individuals have met in every cenopopulations. In generally condition of populations Ikonnikovia kaufmanniana has been normal and in the nearest future, they are not in danger.