Causes of ecosystem transformations variability in lakes of the european part of Russia and Western Siberia (diatom analysis)

Author(s):  
Lev V. Razumovsky

On the basis of author's graphical analysis method, the typification of lake ecosystems transformation scenarios depending on the size of lakes was carried out. It was confirmed that the type of transformation depends not only on size of the lake, but also on the landscape and climatic region in which it is located. The distinctive features of lake ecosystems transformation types in the European part of Russia and in Western Siberia were analyzed and compared.

2020 ◽  
Vol 10 ◽  
pp. 50-56
Author(s):  
M. A. Ovcharova ◽  

The article will focus on the significance of the agrarian movement of people from the European part of Russia to Siberia in the late 19th — early 20th centuries. A stream of ethnoculturally diverse people poured into Siberia. Different ethnic groups in different, sometimes unusual natural conditions were forced to adapt to the surrounding reality. All this happened by changing the usual ways of managing and living. This naturally influenced the formation of a new way of life, changes in cultural traditions that absorbed the traces of a new environment, mixed with the «established» centuries. Thus, at times, the settlers developed a new adaptation culture.


Author(s):  
Lev V. Razumovsky

The work is devoted to the unification of bioindication techniques based on diatom analysis. A new method for calculating the numerical values of pH and temperature in time was proposed. The calculation of the saprobity index (S) is used as a methodological principle of unification. Approbation of the method was carried out for lakes from different landscape and climatic zones of the European part of Russia and the results of paleoreconstructions were found to be reliable and informative.


2020 ◽  
Vol 6 ◽  
pp. 369-374
Author(s):  
Vitaly A. Stolbov ◽  
Elena V. Sergeeva

The paper presents data on the first records of Dendroxena quadrimaculata (Scopoli, 1771) in the Tyumen region. D. quadrimaculata is distributed in the European part of Russia, Caucasus and south of Siberia. This species was not previously recorded in the Tyumen region, but within two years (2018–2019), it spread throughout the region. We considered the possible reasons for its range expansion in Western Siberia.


2011 ◽  
pp. 101-116 ◽  
Author(s):  
B. Yu. Teteryuk

The results of a sintaxonomical study of plant communities of the Yamozero lake (the North-East of the European part of Russia) are presented. The diversity of the aquatic and helophytic vegetation of the Yamozero lake consists of 16 associations and 2 communities of 6 unions, 4 orders and 2 classes of the floristic classification: Potamogetonetea (7 associations, 2 communities), Phragmito-Magnocaricetea (9 associations). Many of described associations are widely distributed in the Central and the Eastern Europe. Some associations have the boundaries of their ranges. Some communities include 2 rare species of regional level: Isoetes setacea and Sagittaria natans.


2018 ◽  
Vol 52 (1) ◽  
pp. 91-100
Author(s):  
E. Yu. Blagoveshchenskaya

The paper provides the results of seven-year study of downy mildew on Skadovsky Zvenigorod Biological Station of Moscow State University (ZBS MSU, Moscow Region). A total of 29 species of Peronosporales (Oomycota) were revealed during the study. An annotated list of species is presented, among them Peronospora anemones is recorded for the first time for Russia, P. chelidonii and P. stachydis are new for the European part of Russia, 8 species are new for the Moscow Region.


2008 ◽  
pp. 76-85 ◽  
Author(s):  
B. Yu. Teteryuk

The results of a syntaxonomical study of plant communities of the large lake Donty (North-East of the European part of Russia) are presented. The diversity of hydrophytic vegetation has been classified into 3 classes (Lemnetea, Potametea and Phragmito-Magnocaricetea), 5 orders, 8 alliances, 20 associations and 1 community. Subasso­ciation Scolochloetum festucaceae caricetosum aquatilis is new. Communities of associations Caricetum aquatilis, Equisetetum fluviatilis, Potamo—Nupharetum luteae, Potametum perfo­liati are mostly wide distributed, while these of Phragmitetum communis, Scolochloetum festucaceae ones are relatively rare as well as Lemno—Spirodeletum polyrchizae, Elodeo—Potametum alpini, Potamo—Nupharetum pumilae, Potametum praelongi and Scirpetum lacustris are very rare. Some communities contain 2 regional rare species: Scolochloa festucacea and Ranunculus lingua.


2013 ◽  
Vol 47 ◽  
pp. 68-73
Author(s):  
S. V. Volobuev

The corticioid basidiomycete Jaapia ochroleuca (Bres.) Nannf. et J. Erikss. is recorded for the first time in the European Russia from the «Bryansky Les» Nature Reserve (Bryansk Region). The taxonomic position of the species is defined briefly. Its morphological description and data on distribution and ecology are provided. The details of microscopic structure of the collected specimen are illustrated.


Sign in / Sign up

Export Citation Format

Share Document