Open AccessThe ontogenesis and structure of coenopopulations of Pulsatilla uralensis in the conditions of Northern Kazakhstan
Author(s) -
G. J. Sultangazina,
Аndrey Kuprijanov,
O.A. Kupriyanov,
Erzhan Raimbekov
Publication year - 2020
Publication title -
ķaraġandy universitetìnìṇ habaršysy. biologiâ, medicina, geografiâ seriâsy/k̦araġandy universitetìnìn̦ habaršysy. biologiâ, medicina, geografiâ seriâsy
Language(s) - English
Resource type - Journals
eISSN - 2663-5003
pISSN - 2518-7201
DOI - 10.31489/2020bmg3/140-148
Subject(s) - ontogeny , juvenile , steppe , population , rhizome , biology , geography , botany , ecology , demography , genetics , sociology
The age features of ontogenesis and the structure of coenopopulations of Pulsatilla uralensis (Zam.) Tzvel., on the territory of Kostanay region were studied. Coenopopulations of P. uralensis are confined to forest edges or secondary steppe communities on the site of old hares on soils of light mechanical composition. There are three periods and 7 age States in ontogeny: seedlings, juvenile, immature virginal, young, middle-aged, old-age generative, and sub-senile states. A feature of the age states of P. uralensis in comparison with the Siberian and Yakut populations is the earlier division of rhizomes into separate parcels with the formation of a loose caudex, observed in the middle-aged generative state. In a sparse pine forest, a normal population is formed with a predominance of generative individuals, belonging to mature populations with a low recovery index. Populations formed in the conditions of secondary psammophytic steppe on the site of a burned pine forest, a left-sided invasive population is formed with a predominance of immature and virginal individuals, which has a high recovery index.