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Spatial and Age Structure and Seed Production of Delphinium macropogon Prokh. in the Population from Talgi Gorge

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Abstract—The spatial structure, demographic indicators, and seed productivity of Delphinium macropogon Prokh. in Talgi gorge are considered. It was noted that the population of D. macropogon is characterized by significant sparseness and low seed productivity. The age structure of the population is incomplete with the predominance of young generative individuals. It was shown that the demographic variables analyzed using the recovery index (Ic = 0.24) and the index of vitality (IVC = 0.88) are depressive. According to the Δ–ω criterion, the population refers to the ripening type. A comprehensive analysis of the population characteristics of D. macropogon in Talgi gorge showed that the processes of population of the territory occur at a low level of density, which is hampered by weak growth due to the young fraction and low seed productivity and germination.

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ACKNOWLEDGMENTS

The author is grateful to R.A. Murtazaliev and R.M. Osmanov (employees of the Laboratory of Flora and Plant Resources) for assistance in conducting field studies and geobotanical descriptions of accounting sites.

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  1. Mountain Botanical Garden, Dagestan Federal Research Center, Russian Academy of Sciences, 367000, Makhachkala, Russia

    D. M. Anatov

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Correspondence to D. M. Anatov.

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The authors declare that they have no conflict of interest. This article does not contain any studies involving animals or human participants performed by any of the authors.

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Translated by M. Shulskaya

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Anatov, D.M. Spatial and Age Structure and Seed Production of Delphinium macropogon Prokh. in the Population from Talgi Gorge. Biol Bull Russ Acad Sci 47, 259–266 (2020). https://doi.org/10.1134/S1062359020010021

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