Abstract
An ecologo-floristic approach and Tsyganov’s ecological indicator values have been used to analyze the effect of abiotic factors on the distribution of Аnemonastrum biarmiense (Juz.) Holub, a species endemic to the Southern Urals. The results show that this species has a wide range of tolerance to edaphic factors, with its synecological optimum being positioned centrally. Therefore, changes in edaphic conditions have no significant effect on its productivity and vitality. With respect to climatic factors, the realized ecological niche of А. biarmiense is narrow. The synecological optimum is displaced to its boundary and corresponds to mountain tundra communities, where habitat conditions change over relatively small distances. Therefore, the response of A. biarmiense to climate warming will involve in the first place a decrease in the density of cenopopulations with the following reduction of habitats. Thus, the combination of the narrow range of tolerance to climatic factors and the position of synecological optimum at the boundary of realized ecological niche makes A. biarmiense a good indicator of global climate change.
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Claims 7
Claim · model-written summary
Аnemonastrum biarmiense has broad tolerance of edaphic factors and a centrally placed synecological optimum.
Verbatim
e0“this species has a wide range of tolerance to edaphic factors, with its synecological optimum being positioned centrally”
t0“Anemonastrum biarmiense”
Claim · model-written summary
Changes in edaphic conditions have no significant effect on productivity and vitality.
Verbatim
e0“changes in edaphic conditions have no significant effect on its productivity and vitality”
t0“Anemonastrum biarmiense”
Claim · model-written summary
The realized climatic niche of А. biarmiense is narrow.
Verbatim
e0“With respect to climatic factors, the realized ecological niche of А. biarmiense is narrow”
Claim · model-written summary
Its synecological optimum lies at the niche boundary in mountain tundra communities.
Verbatim
e0“The synecological optimum is displaced to its boundary and corresponds to mountain tundra communities”
t0“Anemonastrum biarmiense”
Claim · model-written summary
Climate warming is expected first to decrease cenopopulation density.
Verbatim
e0“the response of A. biarmiense to climate warming will involve in the first place a decrease in the density of cenopopulations with the following reduction of habitats”
Claim · model-written summary
Climate warming is expected subsequently to reduce habitats.
Verbatim
e0“the response of A. biarmiense to climate warming will involve in the first place a decrease in the density of cenopopulations with the following reduction of habitats”
Claim · model-written summary
The species is proposed as an indicator of global climate change.
Verbatim
e0“makes A. biarmiense a good indicator of global climate change”