Some biological and ecological features of population of the Redowskia sophiifolia Cham. et Schlecht. on basin of the Sinyaya River (Central Yakutia)
https://doi.org/10.31242/2618-9712-2019-24-4-7
Abstract
The population of Redowskia sophiifolia was found and marked by us for the first time in the basin of the Sinyaya River in 2000. Redowskia sophiifolia is the local endemic of the Middle Lena, listed in the Red Books of the Republic of Sakha (Yakutia) [1] and the Russian Federation [2]. Later in 2012, a more thorough study of rock vegetation was carried out at the rock outlets of the Sinyaya River. During these field works, the habitat of this rare species was specified, its abundance and age structure were revealed, other ecological and biological parameters were studied, and habitats were described. The work was carried out during the flowering period of the species, since at this time the plant is clearly visible on inaccessible sheer cliffs. It was revealed that the largest number of generative individuals of Redowskia sophiifolia was re corded on rocks No. 20 and 19 in the vicinity of the Ulakhan Chagyn stream. On average, 50 to 100 flower ing plants per one rock massif were revealed. The population of Redowskia in the Sinyaya River is inde pendent, capable of self-maintenance by seeds, and occupies a stronger position than the population of the species on the Lena Pillars. Thus, it is assumed that the Sinyaya Pillars are the center of the area of Re dowskia sophiifolia.
Keywords
rare species,
endem,
relic,
area,
range,
habitat,
population,
abundance,
species ecology and biology,
Central Yakutia.
Supporting agencies: The studies were carried out within the framework of a research project of the In stitute for Biological Problems of Cryolithozone (IBPС) SB RAS «Fundamental and applied aspects of study of diversity of plant world of Northern and Central Yakutia» (0376-2019-0003; reg. no. AAAA-А17-117020110056-0)
About the Author
Nadezhda Konstantinovna Sosina
Institute for Biological Problems of Cryolithozone SB RAS
Russian Federation
Russian Federation
Sosina Nadezhda Konstantinovna, engineer researcher, Institute for Biological Problems of Cryolithozone SB RAS, 41 Lenina pr., Yakutsk, 677980, Russia, https://orcid.org/0000-0002-9645-7165, n.k.sosina@yandex.ru.
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For citations:
Sosina N.K. Some biological and ecological features of population of the Redowskia sophiifolia Cham. et Schlecht. on basin of the Sinyaya River (Central Yakutia). Arctic and Subarctic Natural Resources. 2019;24(4):86-94. (In Russ.) https://doi.org/10.31242/2618-9712-2019-24-4-7
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