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The level of invasion by alien plants in the Ploučnice River basin
Šenová, Vendula ; Matějček, Tomáš (advisor) ; Romportl, Dušan (referee)
The level of invasion varies according to the habitat type. The aim of this paper is to evaluate the level of invasion in the basin of the Ploučnice River in North Bohemia. The values of the level of invasion were quantified for vegetation plots from the Czech National Phytosociological Database and for segments of riverbank vegetation which were mapped at own field research. Ten maps showing the level of invasion by alien plants were developed based on a quantitative assessment of the level of invasion of particular habitat types at different altitudes. The levels of invasion were measured as proportion of the species that are aliens and total cover of alien species, the same was done for archeophytes and neophytes separately. The other option to quantify the level of invasion was using levels of count of invasive neophytes in the riverbank vegetation. Within each habitat the level of invasion was related to altitude. If the relation was significant, the level of invasion in that habitat was extrapolated according to that relation to altitude. Mean levels of invasion were used for the habitats which the relation was non-significant for. The west, northeast and the central parts of the assessed basin were evaluated as the most invaded areas. It is caused by the occurrence of the most invaded...
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The comparation of world protected areas
Hrdina, Aleš ; Matějček, Tomáš (advisor) ; Šenová, Vendula (referee)
This thesis deals with the origin and development of protected areas, conservation organisations and systems of protected area management categories. It focuses on the 1994 system and its modification in 2008. The categories are defined and compared. Development of the number and area of protected areas and national parks in the world is studied, and also pros and weaknesses of the system of protected area management categories. The main objective is to create a database of national parks in the world, which includes the 3,227 areas, having an area of over 5,000,000 square kilometers. Part of the thesis is also an analysis of national parks according to continents.
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The comparation of world protected areas
Hrdina, Aleš ; Matějček, Tomáš (advisor) ; Šenová, Vendula (referee)
This thesis deals with the origin and development of protected areas, conservation organisations and systems of protected area management categories. It focuses on the 1994 system and its modification in 2008. The categories are defined and compared. Development of the number and area of protected areas and national parks in the world is studied, and also pros and weaknesses of the system of protected area management categories. The main objective is to create a database of national parks in the world, which includes the 3,227 areas, having an area of over 5,000,000 square kilometers. Part of the thesis is also an analysis of national parks according to continents.
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The level of invasion by alien plants in the Ploučnice River basin
Šenová, Vendula ; Matějček, Tomáš (advisor) ; Romportl, Dušan (referee)
The level of invasion varies according to the habitat type. The aim of this paper is to evaluate the level of invasion in the basin of the Ploučnice River in North Bohemia. The values of the level of invasion were quantified for vegetation plots from the Czech National Phytosociological Database and for segments of riverbank vegetation which were mapped at own field research. Ten maps showing the level of invasion by alien plants were developed based on a quantitative assessment of the level of invasion of particular habitat types at different altitudes. The levels of invasion were measured as proportion of the species that are aliens and total cover of alien species, the same was done for archeophytes and neophytes separately. The other option to quantify the level of invasion was using levels of count of invasive neophytes in the riverbank vegetation. Within each habitat the level of invasion was related to altitude. If the relation was significant, the level of invasion in that habitat was extrapolated according to that relation to altitude. Mean levels of invasion were used for the habitats which the relation was non-significant for. The west, northeast and the central parts of the assessed basin were evaluated as the most invaded areas. It is caused by the occurrence of the most invaded...
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