ONTOGENETIC STRUCTURE OF THYMUS ROSEUS (LAMIACEAE) COENOPOPULATIONS IN THE EAST KAZAKHSTAN
E.B. Talovskaya, V.A. Cheryomushkina
Central Siberian Botanical Garden, SB RAS, 630090, Novosibirsk, Zolotodolinskaya str., 101
kolegova_e@mail.ru
Keywords: Thymus roseus, жизненная форма, ценопопуляция, онтогенетическая структура, онто генетический спектр, Восточный Казахстан, Thymus roseus, life form, сoenopopulation, ontogenetic structure, ontogenetic spectrum, East Kazakh stan
Abstract
The ontogenetic structure of the сoenopopulation of Th ymus roseus was studied in different conditions of East Kazakhstan. It is established that in the steppes at the foothills and along the mountain tops of the biomorph of the species - monocentric, in the steppes along the slopes of the mountains - implicitly polycentric, in the communities of alpine meadows - explicitly polycentric. In individuals of the species of different biomorphs, biological features have been identified that determine the type of the characteristic ontogenetic spectrum of the coenopopulation. All the investigated coenopopulations are normal, in most cases they are full-membered. Th eir ontogenetic spectrums basically do not coincide with the characteristic type. Changes in the ontogenetic spectrum are associated with the conditions of growth (lack of a free substratum, high phytocenotic competition) and features of ontogenesis (skipping the mature generative state).
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