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Influence of weather and climate on Ips typographus calamities in Šumava mountains
Tůma, Lukáš ; Sládek, Ivan (advisor) ; Kožnarová, Věra (referee)
European spruce bark beetle (Ips typographus) is a natural forest pest that feeds on coniferous trees, mainly on spruce. Previous studies showed that population growth of bark beetle is supported by warm and dry weather and hindered by cold and humid weather. Temperature affects development rates and influences the number of generations bark beetle may produce during one season; furthermore, it affects survival rates during the winter. Low precipitation leads to water stress of spruce trees which become more prone to bark beetle infestation. High precipitation promotes growth of mold and other natural enemies of bark beetle. The aim of the experimental part of this thesis was to analyze the relationship between population dynamics of bark beetle and weather, using data from the Šumava national park. Data did not show a significant effect of temperature and precipitation on the population growth rate of bark beetle. The growth rate was significantly correlated only with the abundance of bark beetle in the previous year. For further examination of population dynamics of bark beetle in connection with climate characteristics, it would be required to obtain better and more long-term data on bark beetle abundance; harvested bark beetle wood may be influenced by a variety of interfering (e.g....
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Police Identification of Persons in Czechoslovakia between 1918 and 1938
Tůma, Lukáš ; Himl, Pavel (advisor) ; Rutar, Václav (referee)
This thesis is focused on police techniques of identification of persons used in Czechoslovakia between 1918 and 1938. The goal of this thesis was to show, how the police identification of persons should look like, in other words which techniques were used by criminologists, how they described them, which accomplishments and negatives they saw in them, who had to be identified and for which purpose. To answer all these questions I deal with political and administrative context of Czechoslovakia, police structure in Czechoslovakia between 1918 and 1938 and development of criminology, "bertillonage" and documents of identification (especially passports) in the first part of the text, where I mainly use secondary literature. Then I focus on analysis of three main techniques of identification used between 1918 and 1938, namely dactyloscopy, graphology and photography. In this part of the thesis, I use criminology manuals, published in the twenties and thirties. Finally, I work with the fourth technique of identification of persons, namely the description of persons, where I mainly use forms, which are in the criminology manuals. Thus, heart of this work is based on normative documents from the twenties and thirties wrote by criminalists or graphologists. Keywords Police, criminology, identification,...
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