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Bryological Oriented Excursion in the Dolský mlýn Area
Davídková, Markéta ; Novotný, Petr (advisor) ; Skýbová, Jana (referee)
The aim of this thesis was to carry out an analysis of primary school textbooks considering bryophytes and bracken, as well as to plan a biological excursion in the area of Dolský Mlýn which would include mapping the terrain. The sixth chapter contains the analysis of nine textbooks from different publishing houses. I have compared them in terms of the number of pages dedicated to bryophytes and bracken and in terms of the number of stated bryophytes and bracken representatives. I have also compared whether the textbooks are provided by workbooks, methodological guides and other material, which could variegate biology and natural history teaching. The seventh chapter characterises the location. Mapping of the terrain for the planned excursion took place in September 2012. I chose fourteen suitable sites which are were easily accessible. The eight chapter includes methodical instructions of the excursion for teachers, worklists and the key to determining types of bryophytes. The practical verification of my thesis took place in April 2013 during an excursion of seventh grade pupils from the school ZŠ a MŠ Děčín IV. Laboratory training, which represents an integral part of the excursion took place in March due to unfavorable chmate conditions. Pupils determined mosses of genus Merike according to their...
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Neglected aspects of bark beetle (Coleoptera: Scolytinae) ecophysiology
DAVÍDKOVÁ, Markéta
The thesis describes several unknown aspects of the spruce bark beetle, Ips typographus (L.), and the double-spined bark beetle, Ips duplicatus (Sahlberg.), life-cycles and ecophysiology. The first study focuses on I. typographus and its dispersal under epidemic conditions in the National park Šumava and introduces a novel method of fluorescent marking and detection of captured specimens. The second study is focused on ability of I. typographus to establish so-called sister-broods, i.e. re-emergence of females that are capable to continue egg laying without a need to mate again. The importance of sister-broods becomes apparent mainly in recent hot and dry vegetation seasons, which is demonstrated by a comparison of recent and historical data. The third study focuses on temperature-dependent development of I. duplicatus under laboratory conditions by the means of sandwich method. Altogether, the studies underline practical importance of ecophysiological studies on bark beetles as one of the tools for their effective management.
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