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Fragmentation of mountain tropical forest in Kedjom - Keku area (Cameroon)
Chmelařová, Eva ; Romportl, Dušan (advisor) ; Matějček, Tomáš (referee)
Fragmentation of mountain tropical forest in Kedjom-Keku area (Cameroon) Abstract In many tropical developing countries, the pressure of growing population and increasing demand for agricultural land result in substantial fragmentation of forests. Fragmentation occurs when large continuous forest is broken into a number of smaller patches isolated from each other by a distinct vegetation type. This landscape process increases the probability of extinction for many species, opens up forest patches to altered abiotic and biotic conditions and also affects dispersal and migration patterns of species through destroying habitat connectivity. The last isolated fragments remain from species and endemic rich mountain misty forest in Kedjom-Keku area on the Northwest of Cameroon due to human encroachment. The analysis of satellite images of the area acknowledged high degree of mountain tropical forest fragmentation. There appeared a loss of forest habitat and even a loss of forest core area on the major part of study area between 2003 and 2010. Keywords: fragmentation, tropical forest, assessment, Cameroon
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Is there any link between hierarchy of transnational corporations, banks and research and development institutions?
Chmelařová, Eva ; Blažek, Jiří (advisor) ; Marek, David (referee)
Is there any link between hierarchy of transnational corporations, banks and research and development institutions? Abstract The world city theory focuses on concentration of the most progressive activities of the social-economic system in a few key cities that together have a major share of command and control power within the global economy. Location advantages of such cities attract TNC headquarters, financial services and R&D facilities. Interactions between them lead to further strengthening of the position of the global city and it brings a cumulative effect on the location advantages. This paper examines the global city hierarchy based on the data on 1 500 world's biggest companies headquarters location, as well as location of 1 500 most important R&D institutions and 200 biggest banks. According to the results the triad of New York, London and Tokyo was taken over by Beijing. Correlation analysis of the city rankings in all of the three hierarchies confirms significant geographical link between global arrangement of TNC headquarters, financial services and R&D institutions. Keywords: global city, TNCs, banks, RIS, research and development, geographical organization
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Fragmentation of mountain tropical forest in Kedjom - Keku area (Cameroon)
Chmelařová, Eva ; Romportl, Dušan (advisor) ; Matějček, Tomáš (referee)
Fragmentation of mountain tropical forest in Kedjom-Keku area (Cameroon) Abstract In many tropical developing countries, the pressure of growing population and increasing demand for agricultural land result in substantial fragmentation of forests. Fragmentation occurs when large continuous forest is broken into a number of smaller patches isolated from each other by a distinct vegetation type. This landscape process increases the probability of extinction for many species, opens up forest patches to altered abiotic and biotic conditions and also affects dispersal and migration patterns of species through destroying habitat connectivity. The last isolated fragments remain from species and endemic rich mountain misty forest in Kedjom-Keku area on the Northwest of Cameroon due to human encroachment. The analysis of satellite images of the area acknowledged high degree of mountain tropical forest fragmentation. There appeared a loss of forest habitat and even a loss of forest core area on the major part of study area between 2003 and 2010. Keywords: fragmentation, tropical forest, assessment, Cameroon
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