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The effects of historical disturbances on current vegetation and invasive plant Heracleum mantegazzianum in the Slavkov forest
Breburdová, Vendula ; Pyšek, Petr (advisor) ; Münzbergová, Zuzana (referee)
The thesis deals with the differences in floristic composition of the vegetation in abandoned villages in the Slavkovský les forest and surrounding open landscape. Due to complex historical events, the villages were abandoned and demolished by the army. Vegetation survey took place in 13 completely destroyed villages, and since the vegetation in villages consists of a mixture of woody and treeless cover, the reference vegetation in the surroundings was selected to include both types of habitats. Total number of species, number of families, Ellenberg indicator values, number of archaeophytes and neophytes and representation of life forms were compared for the floras of villages and their surroundings. The flora of villages had more neophytes, phanerophytes and higher indicator values for nutrients and soil reaction. Species' positive fidelity and percentage frequency were calculated from the synoptic table. Indirect ordination plot (NMDS) and PERMANOVA test confirmed the differences between floristic composition in destroyed villages and their vicinity. The second part of the thesis explores the differences between floristic composition of plant communities by Heracleum mantegazzianum in the same two types of habitats. Based on 50 phytosociological relevés, the total number of species, number of...
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Postglacial vegetation history of local phenomena in western Bohemia
Švarcová, Markéta Gabriela ; Kuneš, Petr (advisor) ; Kozáková, Radka (referee)
In the sense of postglacial vegetation development, western Bohemia represents one of the least studied regions in the Czech Republic. This area, however, represents a supposed migration route of trees towards northern Europe during the Holocene. The most appropriate area for testing of such proposal might be western Sudetes with Slavkovský les protected landscape area in the Karlovy Vary region. Postglacial vegetation history was studied on the basis of two sedimentary profiles - from the fen bog near Číhanské prameny springs and from the vicinity of Mnichovské hadce serpentines from the nature reserve Mokřady pod Vlčkem. Percentual as well as influx diagrams were constructed on the basis of results of standard pollen analysis. Comparison of these results with the data from other suitable profiles enabled reconstruction of migration history of main tree taxa. The Číhaná profile reflects the period from the Older Dryas up to the Atlantic. The oldest Holocene forest was formed by the dominant Pinus, while Corylus was joining already in the Preboreal. Quercetum mixtum folowed in the begining of the Boreal and spruce quickly gained dominance in the Atlantic. The sedimentation process was probably finished due to rapid accumulation of sediments followed by spontaneous drainage ending with spruce and alder...
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The effects of historical disturbances on current vegetation and invasive plant Heracleum mantegazzianum in the Slavkov forest
Breburdová, Vendula ; Pyšek, Petr (advisor) ; Münzbergová, Zuzana (referee)
The thesis deals with the differences in floristic composition of the vegetation in abandoned villages in the Slavkovský les forest and surrounding open landscape. Due to complex historical events, the villages were abandoned and demolished by the army. Vegetation survey took place in 13 completely destroyed villages, and since the vegetation in villages consists of a mixture of woody and treeless cover, the reference vegetation in the surroundings was selected to include both types of habitats. Total number of species, number of families, Ellenberg indicator values, number of archaeophytes and neophytes and representation of life forms were compared for the floras of villages and their surroundings. The flora of villages had more neophytes, phanerophytes and higher indicator values for nutrients and soil reaction. Species' positive fidelity and percentage frequency were calculated from the synoptic table. Indirect ordination plot (NMDS) and PERMANOVA test confirmed the differences between floristic composition in destroyed villages and their vicinity. The second part of the thesis explores the differences between floristic composition of plant communities by Heracleum mantegazzianum in the same two types of habitats. Based on 50 phytosociological relevés, the total number of species, number of...
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Postglacial vegetation history of local phenomena in western Bohemia
Švarcová, Markéta Gabriela ; Kuneš, Petr (advisor) ; Kozáková, Radka (referee)
In the sense of postglacial vegetation development, western Bohemia represents one of the least studied regions in the Czech Republic. This area, however, represents a supposed migration route of trees towards northern Europe during the Holocene. The most appropriate area for testing of such proposal might be western Sudetes with Slavkovský les protected landscape area in the Karlovy Vary region. Postglacial vegetation history was studied on the basis of two sedimentary profiles - from the fen bog near Číhanské prameny springs and from the vicinity of Mnichovské hadce serpentines from the nature reserve Mokřady pod Vlčkem. Percentual as well as influx diagrams were constructed on the basis of results of standard pollen analysis. Comparison of these results with the data from other suitable profiles enabled reconstruction of migration history of main tree taxa. The Číhaná profile reflects the period from the Older Dryas up to the Atlantic. The oldest Holocene forest was formed by the dominant Pinus, while Corylus was joining already in the Preboreal. Quercetum mixtum folowed in the begining of the Boreal and spruce quickly gained dominance in the Atlantic. The sedimentation process was probably finished due to rapid accumulation of sediments followed by spontaneous drainage ending with spruce and alder...
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