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November 2017
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21 Reads
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1 Citation
Biology Bulletin
On the basis of the system of ordination for the geographic zonal and provincial replacement of types of pine forests, gradients, and some geographical trends of the main parameters of the morphostructure, the growth and viability of the cenopopulations of common heather Calluna vulgaris (L.) Hull between various subzones of the Russian Plain and the western part of Western Siberia (Tobolsk area) have been revealed.
March 2013
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99 Reads
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5 Citations
Russian Journal of Ecology
Analysis of geographic variation of chloroplast DNA in the eastern European and western Siberian (Tobol) groups of Calluna vulgaris populations isolated from each other for a long period of time has revealed distinct differentiation between them. It has been shown that three populations growing in the Russian Plain and Karelia share two haplotypes characteristic of central Europe, while three Tobol populations contain one haplotype F occurring in Sweden. These results confirm the hypothesis of genetic divergence between the Tobol and eastern European groups of C. vulgaris populations.
November 2012
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28 Reads
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7 Citations
Russian Journal of Ecology
To analyze and quantitatively estimate the contribution of different factors of competition from the edificator tree stand to its effect on plants comprising the lower forest vegetation layer, a set of ecophysiologically based indices of root, light, and integrated competition has been proposed and tested. The results obtained in pine and spruce forests forests of Western Siberia and the Urals show that the growth of the conifer undergrowth is more closely correlated with the index of root competition, and that of heather (Calluna vulgaris (L.) Hull.), with the index of light competition from the edificator tree stand. Moreover, the correlation of their growth with the integrated competition index is 15–25% stronger than the correlation with the indices of root and light competition, irrespective of forest type.
... Studies showed that Calluna generally has a wide tolerance towards water shortage (e.g. Albert et al. 2012;Bannister 1964a, b;Gordon et al. 1999), a high potential for recovery from former droughts (Backhaus et al. 2014;Gordon et al. 1999;Kongstad et al. 2012;Walter et al. 2016) and a high morpho-physiological plasticity to ecological stressors (Bartoli et al. 2013;Ibe et al. 2020;Petrova et al. 2017). Morphological adaptions to drought include the small ericoid leaves, revolute at margins, with the abaxial side reduced to a narrow groove containing sunken stomata and hairs (Gimingham 1972). ...
November 2017
Biology Bulletin
... The marginal isolates, growing in extreme environmental conditions, namely protractedly isolated during Pleistocene relic, marginal, eastern, insular Pritobolye populations, located in the west of Western Siberia, are of great interest for revealing the process of intraspecific adaptive divergence of populations within the heather range. In the last ten years, versatile research of genetic, morphological, anatomic, and ecological peculiarities of the Pritobolye group of C. vulgaris populations was performed in the Botanical Garden of Ural Branch of the Russian Academy of Sciences (RAS) based on the ideas and approaches of Ural ecological-genetic science school of Schwartz-Timofeev-Resovsky [13][14][15][16][17]. The results of the quantitative analysis of structure parameters and geographic variation of Pritobolye populations, compared to other populations growing within the entire species range, demonstrated significant differences between them, which enabled us to distinguish specific new taxon at the subspecies level-C. ...
March 2013
Russian Journal of Ecology
... The comparative analysis of such parameters as projective cover, growth, vitality, and ecologic range of heather populations was performed for different types of geographically vicarious pine forests in Pritobolye (Zavodouspenskoe) and Baltic (Luga). As a result of "coenopopulation-based and microecosystemic" regression analysis, the same objects were used to compare the regional peculiarities of heather response to the tree stand, root, and light competition indexes [27]. ...
November 2012
Russian Journal of Ecology
