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Habitat connectivity of large carnivores in the Romanian Carpathians
Janoušková, Eliška ; Romportl, Dušan (advisor) ; Zýka, Vladimír (referee)
This bachelor thesis deals with the landscape connectivity and the progressing phenomenon of fragmentation, which prevents animals from moving in the landscape. The issue of connectivity of the landscape is a current theme of nature protection, given the dynamic development of new roads and highways. The aim of this work is to identify the core areas of large carnivores in the model area of the Romanian part of the Western Carpathians and their interconnection through migration corridors. Based on the findings of the brown bear, wolf and lynx and environmental factors, the suitability of the environment for the occurrence of these carnivores was evaluated using the Maxent habitat model. Using the Linkage mapper tool, potential migration corridors between core occurrence areas have been identified based on the lowest cost paths. The results confirm that bear, wolf and lynx prefer areas with little anthropogenic alteration. For this reason, their occurrence and maintenance of genetic variability depends on landscape connectivity. Key words: landscape permeability - landscape fragmentation - large carnivores - Carpathians
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Land cover changes and agriculture land take after the Slapy Dam construction in a model area
Bresťák, Martin ; Chuman, Tomáš (advisor) ; Zýka, Vladimír (referee)
The study deals with the evaluation of land cover changes and analyses agriculture land take after the Slapy Dam construction in a model area. It contains research about land cover changes and its driving forces, about land cover changes after the dam constructions in the world and in Czechia as well. Land cover changes and landscape structure changes are analysed in the practical part of the study using aerial photographs from 50s' and using data from RÚIAN (Registry of Territorial Identification, Addresses and Real Estate) database, which was corrected by latest available aerial photograph from ČÚZK (State Administration of Land Surveying and Cadastre, 2017), and impact of these changes on agriculture land was evaluated in this study. BPEJ (Valuated Soil Ecological Unit - the basic mapping and evaluation unit of the soil system) data are used in the thesis to evaluate the qualitative changes of agricultural land.
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Landscape fragmentation by line barriers in the Czech Republic - development, state of the art and priorities of territorial protection
Zýka, Vladimír ; Romportl, Dušan (advisor) ; Chuman, Tomáš (referee)
Landscape fragmentation by line barriers in the Czech Republic - development, state of the art and priorities of territorial protection Abstract This paper deals with the problem of landscape fragmentation by linear structures and changes in land cover printed in Europe and the Czech Republic. The development of the fragmentation geometry consisting of transport infrastructure and urban areas is described in detail in the years 1920-2020. In this time boundary the development of measure of landscape fragmentation in the Czech Republic is evaluated. This paper examines also the quality of the current unfragmented landscape. The degree of landscape fragmentation refills the value of ecological integrity (according to Burkhard et al., 2009). The results of gap analysis define the most valuable areas of the Czech countryside, which are not covered by existing special protection area (NP, CHKO, Natura 2000). The resulting areas are also compared to the territorial system of ecological stability and migration important area for the large mammals. Keywords landscape fragmentation - landscape connectivity - ecological integrity - gap analysis of landscape protection
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Landscape fragmentation and its connectivity conservation by ecological networks in the Czech Republic
Zýka, Vladimír ; Romportl, Dušan (advisor) ; Chuman, Tomáš (referee)
This thesis deals eith the evaluation of landscape fragmentation, its causes, consequences and possible solutions in Europe and the Czech Republic. The study compares various quantitative methods of determining the level of fragmentation (Landscape Division Index, Effective Mesh Size, etc.). It further evaluates the situation in the Czech Republic on the basis of analysis the fragmentation of transport projects and built-up areas. The study also investigates the issue of landscape protection with the use of ecological networks. The results of fragmentation analysis are compared with the current state of ecological networks and systems of protected areas (USES, NATURA 2000, etc.).
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