Flora of high mountain water bodies on Far North-East Asia (Russia)
УДК 581.93:581.526.3(571.56+571.65)
Abstract
The general patterns of distribution of aquatic vascular plants at altitudes above 500 m above sea level were analyzed on the east of Republic of Yakutia, Magadan Region and Chukotka Autonomous Area. At the altitudinal gradient 500-1200 m, 36 taxa of aquatic plant grow. The decrease in their diversity with increasing altitude was not found, their abundance changes. Six species were most common in the highlands, which grow in different types of water bodies: Callitriche palustris, Equisetum fluviatile, Hippuris vulgaris, Potamogeton gramineus, P. perfoliatus, Sparganium hyperboreum. Four species Callitriche palustris, Hippuris vulgaris, Ranunculus trichophyllus and Sparganium hyperboreum were recorded at maximum altitudes above 1200 m. Findings of Nuphar pumila, Nymphaea tetragona, Potamogeton berchtoldii in the highlands of North-East Asia were single, the altitudinal distribution limit of these species was 800950 m above sea level. Up to 1200 m, altitude above sea level is not the main but only one of the factors together with the others limiting the distribution of aquatic plants.
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