Three standard flora of mountain systems of the North-East of Yakutia
https://doi.org/10.31242/2618-9712-2021-26-2-9
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Abstract
The data on the quantitative assessment of the diversity of vascular plants per unit area (1 km2) in the mountain systems of North-Eastern Yakutia are presented on the basis of the original standard flora procedure developed by the author. Three standard floras built in the Tas-Kystabyt Range and in the Oymyakon highlands are characterized. The diversity of vascular plants is estimated at 95 taxa/km2 in the northwestern tip of the Tas-Kystabyt Range («Nelkan Pass» SF), 198 taxa/km2 in the Oymyakon highlands, near the southeastern tip of the Tas-Kystabyt Range («Kuranakh-Sala» SF), and 164 taxa/km2 in the Oymyakon highlands, near the eastern border of the Suntar-Hayata Range («Labyngkyr» SF). Despite the relative geographical proximity, the compared floras show a significant distinctiveness. Only 32 species and 1 variety are common to all three standard floras. Jaccard coefficient characterizing the degree of similarity of the compared floras shows the greatest similarity richer and closer to the standard floras «Kuranakh-Sala» and «Labynkyr» (0.321). The similarity of the most distant standard floras «Nelkan Pass» and «Labynkyr» is higher (0.233) than that of the standard floras «Nelkan Pass» and «Kuranakh-Sala» (0.201), due to the more upland position and the corresponding set of species in the former case.
Keywords
standard flora,
biodiversity,
vascular plants,
the Tas-Kystabyt Range,
the Oymyakon highlands,
«Verkhneindigirsky» resource reserve,
the lake Labyngkyr
Supporting agencies: The work was carried out within the framework of the State Assignment of the Ministry of Science and Higher Education of the Russian Federation (Project No. 0297-2021-0023). With respect to the resource reserve “Verkhneindigirsky”, the research was based on the contract of IBPC SB RAS with the Ministry of Nature Protection of the Republic of Sakha (Yakutia) on the environmental expertise of the protected areas of RS(Y).
About the Author
E. G. Nikolin
Institute for Biological Problems of Cryolithozone SB RAS
Russian Federation
Russian Federation
NIKOLIN Evgenii Georgievich, Dr. Sci. (Biology), chief researcher
41 Lenina pr., Yakutsk 677980
Researcher ID: L – 6587 – 2017
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For citations:
Nikolin E.G. Three standard flora of mountain systems of the North-East of Yakutia. Arctic and Subarctic Natural Resources. 2021;26(2):136-148. (In Russ.) https://doi.org/10.31242/2618-9712-2021-26-2-9
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ISSN 2618-9712 (Print)
ISSN 2686-9683 (Online)
ISSN 2686-9683 (Online)
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