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Vliv potravní nabídky lesního prostředí na distribuci zvěře a působené škody
Kessler, Tomáš
The aim of this bachelor thesis is to determine the effect of wildlife damage on forested seedlings in relation to the productivity of the habitat in which they are located. The first part of the thesis is focused on the general assessment of the effect of game on the forest environment and the amount of damage caused. The second part presents the results, which were collected in the field on several selected habitats and then evaluated according to the given fertility. In the last part of the paper, suggestions are given for measures to minimize or completely prevent this damage.
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Habitat dependence of persistence of clonal connection in plants
Martincová, Nina ; Weiser, Martin (advisor) ; Koubek, Tomáš (referee)
The review is about the role of environment to the longevity of connection in clonal plants. The first part is dealing with theoretical models, which describe the interaction of plants with different strategies in longevity of clonal connection in a model habitat. Subsequently, it analyses concrete attributes of the environment - heterogeneity, carrying capacity, amount of disturbances and competition. This part focuses more thoroughly on their impact on persistence of clonal connection and strategy of clonal reproduction in general. The last part refers to some other phenomena which could influence the length of persistence of a clonal connection.
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Vyhodnocení významu výživného stavu prasat divokých na jejich reprodukci
Miškeřík, David
The main aim of this thesis is to describe relationship between the physical state of wild boars and their ability to reproduce. The study is focused exclusively on wild boars of feminine gender. The sows were firstly examined in relationship to the certain biotope and consequently according to the particular age groups. The core of the research was to confirm or refute whether the litter size is influenced by nutrition of the sows. The samples of the research were gathered in various locations of the Czech Republic, mostly in Bohemia and in the surroundings of Brno. Subsequently, the samples were processed and analysed in a laboratory. The collected data were organized and statistically evaluated. Microsoft Excel was used for processing and graphical presentation of the given data. The outcome of the research confirmed the relation between age, amount of body fat and litter size. The thesis also proved that food abundance supports bigger litter sizes of wild boars.
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Ecological determinants of plant clonal growth
Martincová, Nina ; Weiser, Martin (advisor) ; Latzel, Vít (referee)
The aim of this study is to provide a further insight into influence of environment on clonal plants. The study focuses particularly on effects of fertilization level and light availability on production and growth of clonal organs. Three experiments were carried out within the study, targeted to elicit influence of these environmental conditions or clonal interactions on six species of clonal plants. Interspecies dependencies on these conditions was compared, regarding habitat occurrence of these species. A comparison was made also between species producing rhizomes and stolons. The experiments revealed that five of six studied species show significant relationship among at least one environmental condition and parameters of clonal reproduction. Most of the species showed higher elongation and production of clonal organs in relation to fertilization level. On the contrary, only three species reacted significantly to the light availability level by alternation of at least one parameter of clonal reproduction and the light availability level affected each species differently. A strong influence on production and elongation of clonal organs had also a size of a plant. There was not found significant difference in influence of environmental conditions on clonal reproduction among plant families. It...
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Habitat dependence of persistence of clonal connection in plants
Martincová, Nina ; Weiser, Martin (advisor) ; Koubek, Tomáš (referee)
The review is about the role of environment to the longevity of connection in clonal plants. The first part is dealing with theoretical models, which describe the interaction of plants with different strategies in longevity of clonal connection in a model habitat. Subsequently, it analyses concrete attributes of the environment - heterogeneity, carrying capacity, amount of disturbances and competition. This part focuses more thoroughly on their impact on persistence of clonal connection and strategy of clonal reproduction in general. The last part refers to some other phenomena which could influence the length of persistence of a clonal connection.
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