Modern state of populations of rare endem Lilium kesselringianum Miscz. in Ritsinsky relic national park (Republic of Abkhazia)

The authors present the results of studying a rare endem of the Caucasus Lilium kesselringianum Miscz. from the Liliaceae family included in the Red List of the Russian Federation in the territory of Ritsinsky relic national park (Republic of Abkhazia). The biological research of Lilium kesselringianum were conducted in 2012-2015, within two forest areas (Circassian - Polyansk and Auadkharsk) of the national park. Nine localities of the species are revealed. The assessment of interpopulation variability of morphometric parameters of species with the use of the one-factorial dispersive analysis and vitalitet type of populations is carried out. In the majority of morphometric parameters, both vegetative, and generative spheres, the populations of Agapst and Adzharr 4 are in the lead, minimum values are in all respects noted in depressive population of Adzharr 2. The biotic condition of populations of L. kesselringianum changes in different ecotops. In Agapst, Mzymn and Adzharr 's 4 populations a dominant of individuals of the highest class is noted, and they are referred to prospering category, the quality index is maximum here and makes 0,36-0,5. Other populations are referred to depressive ones. In Adzharr's 2 population the total absence of individuals with a high vitalitet is noted. The general state of populations of Lilium kesselringianum causes alarm, in connection with extreme small number of this endemic plant and anthropogenic loading (pasture and recreation). To save the species it is necessary to limit human pressure in areas of growth, to prohibit and control the collection of Lilium kesselringianum population, to conduct constant monitoring of the state of populations in the Ritsinsky relic national park.