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The role of Czechs in the investigation of the Katyn massacre
Pokorná, Adéla ; Tumis, Stanislav (advisor) ; Mokryk, Radomyr (referee)
The Katyn massacre was one of the most brutal acts of the Stalin era, which took place in 1940 and started a several-year hunt for the culprit. The Soviet Union's biggest rival was Nazi Germany, which did not want to be wrongly accused of murdering Polish officers. But the incident had a much bigger impact than it might at first look. The Katyn massacre also had a significant impact for the Czech context. As part of the investigations, special groups were formed, made up of leading experts, such as doctors and journalists. These groups included a few representatives from the Czech lands, thanks to whom we can take an even closer look at the whole event.
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Tracing the history of synanthropic flora and vegetation in the Czech Republic
Pokorná, Adéla ; Novák, Jan (advisor) ; Lososová, Zdeňka (referee) ; Mercuri, Anna Maria (referee)
1 Abstract Plant macro remains from archaeological situations were studied in order to trace the history of gradual formation of today's synanthropic vegetation. Synanthropic plants represent a heterogeneous group of species with various qualities and strategies, as well as with various immigration histories. In general, the synanthropic flora is rich in aliens, so it is important to know, when exactly these species immigrated to our territory (to know their residence time). Besides the determination of the residence time of alien plants, also the dynamics of formation of urban flora and vegetation was studied. Special attention was paid to the Medieval Period, when the urbanisation process started. The emergence of urban agglomeration may have been the cause of the emergence of new habitats, followed by formation of new plant associations - the predecessors of the today's ones. In general, towns represent a special case of anthropogenic environment with many various synanthropic habitats, causing their species richness. Questions 1. When exactly the synanthropic flora of medieval towns emerged? Was the transition from the Prehistory to the Medieval Period rather gradual or sudden? 2. What particular species took place in the medieval change of synanthropic vegetation? Where did these species come from? Was...
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Methods for studying of free-living herbivores zoochory
Lepková, Barbora ; Vojta, Jaroslav (advisor) ; Pokorná, Adéla (referee)
Epizoochory as well as endozoochory are well known dispersal mechanisms. This topic is being studied more and more often lately but our knowledge is still incomplete. The traits of plants dispersed this way are not yet well investigated and there is a gap in knowledge of mutual interaction between plant and animal species during transport. The impact of transport itself especially in endozooochory is also poorly known. We study endozoochory most often using seedling emergence method for seeds contained in dung. Feeding experiments are an interesting way of research and we use them to learn the survival rates of seeds in digestive tract. The most favourite methods for research of epizoochory are tamed animals and all types of dummies. Various laboratory experiments, for example shaking machine, are also frequently used.
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Archaeobotanical data as a tool for understanding history of synanthropic vegetation - a methodological study focused on traits of plants
Mrkvičková, Kateřina ; Pokorná, Adéla (advisor) ; Látková, Michaela (referee)
Archaeobotanical data are often a mixture of material of different origins. The formation process of archaeobotanical records can often be different. Hence it is important to understand the structure of these fossil records before the data are used for various reconstructions and interpretations. The aim of my diploma thesis is to identify the taphonomic causes of differences between synanthropic species from different archaeological sites using plant traits. The greatest differences between sets of species in archaeobotanical situations are due to the way of preservation, ie. between charred and non-charred (waterlogged) macro-remains. My diploma thesis is based on data from the Archaeobotanical database of the Czech Republic. I focused on the Middle Ages, which is the best period in terms of the number of species and the number of sites. Using multidimensional analyses, I examined the structure of archaeobotanical data and then selected a relevant dataset to examine the differences in species composition between different types of conservation. After that I correlated the results with the species traits. I found that the structure of archaeobotanical data is very heterogeneous. In each of the two types of conservation, different species are preserved. These species are characterized by a...
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Tracing the history of synanthropic flora and vegetation in the Czech Republic
Pokorná, Adéla ; Novák, Jan (advisor) ; Lososová, Zdeňka (referee) ; Mercuri, Anna Maria (referee)
1 Abstract Plant macro remains from archaeological situations were studied in order to trace the history of gradual formation of today's synanthropic vegetation. Synanthropic plants represent a heterogeneous group of species with various qualities and strategies, as well as with various immigration histories. In general, the synanthropic flora is rich in aliens, so it is important to know, when exactly these species immigrated to our territory (to know their residence time). Besides the determination of the residence time of alien plants, also the dynamics of formation of urban flora and vegetation was studied. Special attention was paid to the Medieval Period, when the urbanisation process started. The emergence of urban agglomeration may have been the cause of the emergence of new habitats, followed by formation of new plant associations - the predecessors of the today's ones. In general, towns represent a special case of anthropogenic environment with many various synanthropic habitats, causing their species richness. Questions 1. When exactly the synanthropic flora of medieval towns emerged? Was the transition from the Prehistory to the Medieval Period rather gradual or sudden? 2. What particular species took place in the medieval change of synanthropic vegetation? Where did these species come from? Was...
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Phytolith spectra of the recent vegetation in north-east Africa: testing the potential of phytolith analysis for palaeoecology
Kuncová, Kristýna ; Pokorná, Adéla (advisor) ; Jamrichová, Eva (referee)
Phytoliths are mostly formed by groundwater silica carried upwards in a plant's vascular system and consequently accumulated in different parts of the plant. After the plant's death, the phytoliths shaped in specific morphotypes are released into the soil. Phytolith assemblages found in the soil can therefore provide information on the previous vegetation cover. The use of phytoliths as a paleoecological tool is based on their high stability in a broad spectrum of environments, even in arid conditions which are usually not suitable for preservation of pollen grains and plant macro-remains. Analysis of surface phytolith assemblages linked to the parallel study of modern vegetation is offering a good opportunity to refine our knowledge of paleoecosystems of NE Africa by evaluating the interpretation value of the fossil data. Modern phytolith assemblages are usually interpreted by using their phytolith ratio to estimate the density of tree cover, the aridity, and the proportion of C3 and C4 grasses (Barboni et al. 1999). Here we show a comparison of soil phytolith assemblages on a 400 km long climatic gradient reaching from semidesert to short grass savanna. And we also show local variability in phytolith assamblages at one of localities in comparision with grass reference collection. This master...
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Climate and vegetation changes in Holocene of NE Africa and related cultural development leading to agriculture.
Kuncová, Kristýna ; Pokorná, Adéla (advisor) ; Pokorný, Petr (referee)
More than eight thousand years ago, in the area of the Near East, crucial change in the human food-strategy occurred due to changing environmental conditions: hunter-gatherers become shepherds and farmers. Reasons of this "revolution" are known, nevertheless the biological background of this transformation, i. e. cultivation and domestication of crops, are still relatively fragmental. This paper is dealing with human-environment interaction in the Early and Middle Holocene in the area of the southeastern Africa. That summarizes current knowledge about archeobotanical researches with special regard to the domestication of crops. Key words: holocene, NE Africa, plant cultivation, agriculture
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Methods for studying of free-living herbivores zoochory
Lepková, Barbora ; Vojta, Jaroslav (advisor) ; Pokorná, Adéla (referee)
Epizoochory as well as endozoochory are well known dispersal mechanisms. This topic is being studied more and more often lately but our knowledge is still incomplete. The traits of plants dispersed this way are not yet well investigated and there is a gap in knowledge of mutual interaction between plant and animal species during transport. The impact of transport itself especially in endozooochory is also poorly known. We study endozoochory most often using seedling emergence method for seeds contained in dung. Feeding experiments are an interesting way of research and we use them to learn the survival rates of seeds in digestive tract. The most favourite methods for research of epizoochory are tamed animals and all types of dummies. Various laboratory experiments, for example shaking machine, are also frequently used.
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Financial analysis and financial plan of Level Hlinsko, spol. s.r.o.
Pokorná, Adéla ; Marek, Petr (advisor) ; Hrdý, Milan (referee)
Bachelor's thesis focuses on the financial analysis and the financial plan of Level Hlinsko, spol. s. r. o. The methodical part contains particular indicators and techniques used in the practical part to make a complete reflection of the financial situation in the company. The main used sources are economic final accounts for years 2005 -- 2010. The particular financial indicators are compared with the indicators of regional companies for an objective evaluation. Level Hlinsko, spol. s. r. o. is a quite small construction company whose management has not prepared any investment plans. That is the reason why financial plan in the thesis is a kind of subjective opinion supported by the analysis of the construction industry in Pardubice region. The final conclusion reflects the strengths and the weaknesses of Level Hlinsko spol. s. r. o. in SWOT analysis. The construction industry contains many competitors and is really sensitive on the economic cycle. How affected was the company in the critical years 2008 -- 2010 is also showed in this thesis.
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