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Aktuoekologie jezerních krytenek Šumavy
Lorencová, Markéta ; Holcová, Katarína (advisor) ; Bubík, Miroslav (referee) ; Hudáčková-Hlavatá, Natália (referee)
/ SUMMARY The doctoral thesis discusses thecamoebians assemblages coming from five glacial lakes in the National Park Šumavaand from the Lipno Reservoir in the Southern Bohemia (the Czech Rep.). The research analyzes parameters of various assemblages commensurate with environmental characteristics. The aim of this research is to find relations useful in paleoecology. Thecamoebians are freshwater microorganisms with amoeboid cell and simple organic or anorganic test. Species with anorganic tests have been examined because of their better possibilities to fossilize. This taxon may prove to be a key taxon for monitoring environmental change during 21't century So it is expected that it could bear useful information about freshwater benthic paleoenvironment as well. Forty-six surface samples from the bottom of five glacial lakes in the ŠumavaMts., Czech Republic. collected in2002 were investigated and twelve species of thecamoebians with anorganic wall were identified in total. 96 oÁ samples contain the species Difflugia globulus. Other common species are Difflugia oblonga and Centropyxis orbicularis. Dominance oť DiÍÍlugiaglobulus and representation of Centropyxis orbiculari.r and Trigonopyxis arcula are the considerable differences comparing testate fauna from other world lakes. It is possible to distinguish...

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