Abstract
The structure of monocarpic shoots of some representatives of the Sparganiaceae family (Sparganium emersum Rehm., Sparganium natans L. (subgenus Xanthosparganium), Sparganium erectum L. and Sparganium microcarpum (Neum.) Domin (subgenus Melanosparganium)) has been analyzed with the help of the modular approach. The structure of all three module categories—elementary (EM), universal (UM), and basic (BM)—is described. With a decrease in EM value, all investigated species line up in the following descending order: S. emersum (23) > S. erectum (20) > S. natans (19) > S. microcarpum (18). It is determined that the level of EM similarity between two bur-reed subgenera reaches 30%. The rest of the EM part is specific for certain subgenera, as well as for certain species. It is shown that dissimilarities between different ecological forms of Sparganium are due not to a quantitative EM increase, but to their transformation ability, which improves species adaptation to varying water-level conditions of reservoirs. The UM value in the representatives of both subgenera equals 4; BM values are represented by two similar variants. This was caused by the similarity of habitats of the model species. The special features of the plants on the level of structural–functional organization of different types of monocarpic shoots are shown. Differences in the set of structural–functional zones for particular shoot types were also revealed.
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Original Russian Text © E.A. Belyakov, A.G. Lapirov, 2015, published in Sibirskii Ekologicheskii Zhurnal, 2015, No. 5, pp. 785–799.
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Belyakov, E.A., Lapirov, A.G. Modular and structural–functional organization of G. sparganium L. species in different ecological conditions. Contemp. Probl. Ecol. 8, 647–659 (2015). https://doi.org/10.1134/S1995425515050030
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DOI: https://doi.org/10.1134/S1995425515050030