BIO Web Conf.
Volume 16, 2019“Results and Prospects of Geobotanical Research in Siberia”, dedicated to the 75th anniversary of the laboratory of ecology and geobotany of CSBG SB RAS
|Number of page(s)||4|
|Published online||15 October 2019|
Polyvariation of the development Scutellaria L. species and the structure of their populations in Siberia
Central Siberian Botanical Garden SB RAS,
* Corresponding author: email@example.com
Structure of coenopopulations and polyvariance of the development of species of the genus Scutellaria in Siberia were described. Species of the genus are semi-wood and grassy life forms. The formation of different life forms is confined to specific habitats. In a number of species (S. galericulata, S. grandiflora и S. supina), the life form is changing. Dimensional polyvariance of individuals of S. scordiifolia in different habitats was found. The ontogenetic structure of coenopopulations is diverse; 3 types of spectrum are formed: left-sided, centered, and right-hand. In individuals of S. supina and S. tuvensis, the duration of ontogenesis and the duration of individual ontogenetic conditions are influenced by living conditions. The polyvariance of selfmaintenance was revealed in S. supina, the transition from completely seed self-maintenance to mixed − seed reproduction in combination with vegetative. The spatial structure and density of coenopopulations vary depending on the habitat conditions. The spatial structure of the studied species is also determined by the peculiarities of self-maintenance of coenopopulations. The change in density is also associated with the mobility of the substrate on steep, rocky mountain slopes in vegetatively stationary species and with projective cover in vegetatively mobile ones.
© The Authors, published by EDP Sciences, 2019
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