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Factors affecting diversity of open forest vegetation
Kerberová, Eva ; Pánková, Hana (advisor) ; Křenová, Zdeňka (referee)
The bachelor thesis contains a literature review focused on the evaluation of factors influencing the diversity of open forest vegetation. The thesis first explains the concept of open forests and describes selected cases in our territory. It lists selected factors, such as abiotic conditions (influence of light availability and soil quality), biotic conditions (herbivores, mycorrhizal symbiosis) and suitable management methods (forest grazing, thinning, litter raking, girdling), and describes their importance for the species diversity of communities of open woods. Key words: open forests, diversity, management of open forests, factors affecting diversity, abiotic conditions, biotic conditions
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Factors affecting diversity of open forest vegetation
Kerberová, Eva ; Pánková, Hana (advisor) ; Křenová, Zdeňka (referee)
The bachelor thesis contains a literature review focused on the evaluation of factors influencing the diversity of open forest vegetation. The work firstly explains the concept of open forests and describes their vegetation. It also lists the different types of diversity. It focuses on factors affecting the diversity such as size of the area, abiotic conditions (e.g. local conditions, light availability, soil conditions), biotic conditions (mycorrhizal symbiosis, herbivory) and management. The thesis describes their importance for the species diversity of these communities. Key words: open forests, diversity, management of open forests, factors affecting diversity, abiotic conditions
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Interpopulation variability in response of Aster Amellus to mycorrhizal symbiosis
Pánková, Hana ; Münzbergová, Zuzana (advisor) ; Kytöviita, Minna-Maarit (referee) ; Jersáková, Jana (referee)
In my PhD thesis I focused on interaction between plant populations, soil conditions and mycorrhizal symbiosis in terms of local adaptation on localities with similar phosphorus content. For this study I used Aster amellus as a model plant species. Because the development of mycorrhizal symbiosis could be affected by differences between ploidy levels as well as soil conditions, I performed two sets of studies. In the first set I focused only on diploid populations and tested effect of marl/limestone on plant growth as well as development of mycorrhizal symbiosis in terms of local adaptations (Paper 1, 2, 3). In the second sets I tested effect of ploidy level on plant growth and development of mycorrhizal symbiosis in terms of local adaptation and therefore I used diploid and hexaploids populations from the same, marl, region (Paper 4). All these papers showed that percentage of root colonization was strongly different between limestone and marl region and in marl region it was almost 100 % for both ploidy levels. To be sure that high levels of root colonization behave still mutualisticaly in the soil with higher nutrients content than in the natural soil or if there is some switch point to parasitism, we performed additional pot experiment. In this experiment we asked if there is correlation of mycorrhizal...
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Importance of mycorrhizal symbiosis for local adaptations of Aster amellus
Pánková, Hana
3 Abstract The importance of arbuscular mycorrhizal (AM) symbiosis for survival and growth of many plant species is generally recognized. It has been repeatedly shown that symbiosis with mycorrhizal fungi can increase the fitness of many plant species. This increasing fitness is caused by increased uptake of phosphorus and other nutrients or pathogen protection. Most studies on mycorrhizal associations explore these types of relationship using single plant population and single fungal species. This contrasts with many studies that show local adaptations of plant populations to environmental conditions. Recently it has also been shown that fungal species may have themselves different adaptations at different localities. Inspite of this knowledge only few recent studies consider both differences between plant populations and their possible local adaptations to environmental conditions at their localities as well as differences in the abundance and composition of AM fungal communities and possible local adaptations of plants directly to these communities. We studied interactions of plants from different populations of Aster amellus (an endangered species of the Czech Republic) with AMF in their natural habitats and in a pot experiment where plants from different populations were inoculated with two different...
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Importance of biotic and abiotic components in feedback between plants and soil
Hanzelková, Věra ; Pánková, Hana (advisor) ; Knappová, Jana (referee)
The plant-soil feedback affects the forming of a plant community. Plants affect their own species as well as other species. The plant-soil feedback can be both positive and negative. Plants affect soil, change its properties, and the soil affects the plants reciprocally. Soil components can be divided into biotic and abiotic ones. The abiotic component is represented by physical and chemical properties of the soil. The main properties are the soil structure, the soil moisture, the soil temperature, the soil pH and the amount and availability of nutrients. The biotic component is composed of soil biota. The individual organisms can function as decomposers, symbionts and pathogens. The majority of soil organisms is composed of microorganisms, the most important of which are fungi and bacteria. The effect of the abiotic component in plant-soil feedback is mostly nonspecific, while the effect of the biotic component is more specific. These components interact with each other and determine the resulting effect on the plants and the type and intensity of interaction between various plant species. The aim of this thesis is to show the importance of these components in the plant-soil feedback. Key words: plant-soil feedback, abiotic factors, biotic factors, soil structure, soil water, soil temperature, pH,...
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Criminal protection against corruption and its prevention
Pánková, Hana ; Vokoun, Rudolf (advisor) ; Gřivna, Tomáš (referee)
Criminal protection against corruption and its prevention This doctoral thesis entitled "Criminal Protection against Corruption and its Prevention" defines the point of view of the phenomenon of corruption, which I decided to pursue, with its name itself. I examined corruption from the perspective of substantive criminal law, although it should be noted that this work cannot ignore the aspects of other disciplines such as sociology, criminology, philosophy etc., in order to make view of the detrimental phenomenon of corruption, for it undoubtedly is detrimental, complete. I am convinced that the chosen topic is relevant and needed. It is so, because only the effective and sustained efforts to combat corruption may lead to its reduction while avoiding the negative consequences of acts of corruption. These are mainly damages in the area of economic damage, although the negative impact of corruption on civil society should be also emphasized, for example corruption causes the loss of public confidence in politics, public administration and in a fair, objective, impartial decisions. If there isn't sharp fight against corruption, appropriate public education about the harmful effects of corruption and prevention, then the impression, that corruption is a necessary and integral part of our lives, raises...
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Importance of mycorrhizal symbiosis for local adaptations of Aster amellus
Pánková, Hana
3 Abstract The importance of arbuscular mycorrhizal (AM) symbiosis for survival and growth of many plant species is generally recognized. It has been repeatedly shown that symbiosis with mycorrhizal fungi can increase the fitness of many plant species. This increasing fitness is caused by increased uptake of phosphorus and other nutrients or pathogen protection. Most studies on mycorrhizal associations explore these types of relationship using single plant population and single fungal species. This contrasts with many studies that show local adaptations of plant populations to environmental conditions. Recently it has also been shown that fungal species may have themselves different adaptations at different localities. Inspite of this knowledge only few recent studies consider both differences between plant populations and their possible local adaptations to environmental conditions at their localities as well as differences in the abundance and composition of AM fungal communities and possible local adaptations of plants directly to these communities. We studied interactions of plants from different populations of Aster amellus (an endangered species of the Czech Republic) with AMF in their natural habitats and in a pot experiment where plants from different populations were inoculated with two different...
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Financial analysis of company Komerční pojišťovna, a.s.
Pánková, Hana ; Holečková, Jaroslava (advisor) ; Rychlá, Jana (referee)
This diploma thesis includes a financial analysis of company Komerční pojišťovna, a.s. as prepared for the period 2005 - 2010. The aim of the thesis is theoretical and then practical processing of financial analysis of commercial insurance company. The theoretical part describes the different stages and methods of financial analysis. The practical part contains an analysis of the financial situation of the company and its comparison with industry.
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