Ontogenesis, structure and self-maintenance of coenopopulation Thymus talijevii Klok. et Schost. (Lamiaceae) on South Timan

Ontogenesis features of thyme Taliyev on outputs of limestones in Sonth Timan (Republic Komi) are tracked. It is shown, that in area of researches there meet as invasional and normal definitive coenopopulations. Stages of their development are closely connected with development of talus. In process of fastening the substratum the age structure of coenopopulation changes: ontogenetic spectrum from not full left sided passes to full left sided and further - to full bimodal. The basic way of self-maintenance of species numerosity is seed duplication, additional - vegetative which is carried out due to mature particulation with superficial rejuvenation. Depending on a degree of substratim impaction it is observed transition from obligate seed renewal to mixed one.