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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Samovolné šíření introdukovaných dřevin v zámeckém parku v Lednici
 Hutko, Tomáš
This thesis deals with the introduction of woody plants from the past to the present. In addition to basic terminology, it focuses on the biological nature of generative and vegetative distribution of plants, especially woody plants. It addresses the spontaneous spread of non-native plant taxa, especially woody plants in the Czech and Slovak Republics. It provides a broader view of the benefits and negatives, both from the point of view of landscape architecture and from other disciplines, within the scope of deliberately using or suppressing this property. It solves the general regime and specifics within the possibility of their suitable cultivation, both in parks and in the open country. The practical part of the thesis is focused on the creation of the methodology of field investigation for the registration of individual taxa selection in the park. With the help of the developed method of field investigation it focuses on the taxa of introduced woody plants in the Lednice park. In the results, it provides a set of individualized inventory items, along with some of them, and then interpreting the results using graphs and tables. Part of the results is also a graphically processed map from the field survey by locating the evaluated items in the park.
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Diversity of insect communities of non-indigenous forests of black pine (Pinus nigra) in the western part of Central Bohemia
 Tůmová, Klára ; Kadlec, Tomáš (advisor) ; Jakubíková, Lada (referee)
Due to the rapid intensification of agriculture, there were a bigger and more often habitat loss and their fragmentation. These led to the decreasing of the size of suitable habitats and their isolation. The isolation of landscape fragments is a basic geographical characteristic, which plays an important role in the ecological invasions. The invasions generally cause major economic damages and they affect the loss of biological diversity in the stands. In this work, we focused on the effects of black pine (Pinus nigra). This wood plant has been occurred in the Czech Republic since the Tertiary period and disappeared by the subsequent disintegration of continents. The aim of this study is to determine the influence of black pine (Pinus nigra) on the invertebrates compared with the native stands of scots pine (Pinus sylvetris). The experiment was conducted at 35 plots in Central Bohemia (18 plots of Scots pine, 17 plots of black pine). The invertebrates were captured by light traps. The total abundance and biomass of invertebrates were determined from the captured samples. From the processed data was not proven negative impact on non-native black pine to overall abundance and biomass of invertebrates. This fact is most likely due to the phylogenetic relationship of both pine species. There were not found any differences in abundance and biomass of most herbivorous groups of invertebrates. However, in the black pine stands was reported a higher incidence of carnivorous species of invertebrates. The stands of the black pine have no negative impact on number of invertebrates in the Czech Republic, actually there was demonstrated even higher affinity of carnivorous species of invertebrates to the black pine trees.
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