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Predikace druhového složení těžeben na základě biotopového mapování okolní krajiny: využití charakteristických druhů vyšších rostlin
SLABA, Michal
The surrounding habitats play an important role in the spontaneous vegetation succession in disturbed sites. They serve as donor sites for species colonizing various post-mining sites from the close surrounding. This diploma thesis deals with the species composition in post-mining sites and the surrounding habitats up to the 1 km distance from the locality. The results indicate, that basalt quarries share the largest amount of species with their surrounding habitats. The studied methods have got limited capability to predict the species composition of post-mining sites using only the knowledge about habitat types occurred in the surrounding. On the other hand, species composition of the surrounding habitats, defined by a selection of the representative relevés of the Czech National Phytosociological Database (CNFD), seems to be more promising approach. It could provide more precise results applied in ecological restoration of post-mining sites in the Czech Republic.
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Sukcese vodní a mokřadní vegetace na pískovnách
MÜLLEROVÁ, Anna
Vegetation sampling was carried out to determine processes of succession of aquatic and wetland plant species. Different stages of wetland and aquatic vegetation were analyzed in sand pits in the Třeboňsko Protected Landscape Area in the Czech Republic. Moreover different sizes of phytosociologial relevés of aquatic vegetation were analyzed to determine sufficient size for detection of successional changes.
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Population dynamic of amphibians and reptiles of Vlkovská sandpit
RŮŽIČKA, Jan
The theoretical part contains summary of the literature on the topic of succession, mining, human impacts on biodiversity, land reclamation and ecological requirements of reptiles and amphibians. The practical part contains the observations of these two model groups of animals and subsequent evaluation of their abundance and diversity. During the three years I made total 37 herpetological observation, during which I observed the occurrence of eight species of reptiles and amphibians on five locations. When observing reptiles and amphibians I used non-invasive methods of observation. The found species were Zootoca vivipara (507 individuals), Lacerta agilis (583 individuals), Pelophylax esculentus (976 individuals), Pelophylax ridibundus (710 individuals), Pelophylax lessonae (1,401 individuals), Lissotriton vulgaris (203 individuals), Natrix natrix (32 individuals) and Anguis fragilis (7 individuals). The values in the brackets represent the total number of individuals found during 3 seasons. Generically the richest site was "Jezírka" (8 species), species habitat poorest contrary, "Přesyp" (2 species). In all the years the abundance of two model groups (frogs and lizards) were significantly different (abundance of Pelophylax: Chí Square = 2764; d. f. = 4, p <0.001, Zootoca + Lacerta: Chí Square = 119; d. f. = 4, p <0.001. Pelophylax: Chí Square = 1573; d. f. = 4, p <0.001, Zootoca + Lacerta: Chí Square = 43; d. f. = 4, p <0.001. Pelophylax: Chí Square = 37; d. f. = 4, p <0.001, Zootoca + Lacerta: Chí Square = 741; d. f. = 4; p <0.001). The researchl lasted three vegetation seasons. They had distinctly different climatic conditions. The abundance of reptiles and amphibians in season of 2013 was significantly impacted by the spring floods. Season 2014 any major climatic fluctuations and therefore I considered it as a standard. Season 2015 was greatly influenced by the high summer temperatures and the lack of greater precipitation during the summer months. This fact influenced mainly amphibian populations.
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Amphibians and reptiles of Vlkovská sandpit surrounding
RŮŽIČKA, Jan
The successional course is the most important factor affecting consequential characteristics of the mine areas. The succession is influenced by man both by his activity or inactivity, for example by using various types of reclamation or by leaving the area to spontaneous succession. The theoretical part of the thesis contains literal review of the literature dealing with succession, mining, man and biodiversity, reclamation and ecology of reptiles and amphibians. Practical part contains observing of those two model groups and evaluation of their abundance. I accomplished 13 herpetological observations during 7 months and I noted 7 species of reptiles and amphibians at 5 studied localities. I used non-invasive methods of the observation. I recorded following species: Zootoca vivipara, Lacerta agilis, Pelophylax esculentus, Pelophylax ridibundus, Pelophylax lessonae, Natrix natrix and Lissotriton vulgaris. The highest diversity was found at the locality "Jezírka" (7 species), the lowest at locality "Přesyp" (2 species). Using Chi-Square test I rejected the hypothesis, that there is no difference in abundance among studied localities (abundance of Pelophylax, Chí Square = 2764; d. f. = 4; p < 0,001 and Zootoca + Lacerta, Chí Square = 119; d. f. = 4; p < 0,001).
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Comparison of the flora of recultivated and succession influenced areas at sandpits in Třeboňsko Protected landscape area
RADOŠOVÁ, Tereza
The goal of this thesis is to compare flora on recultivated and succession-influenced areas in sandpits of Třeboňsko Protected landscape area in Southern Bohemia. This area is situated in Southern Bohemia region. The mapped sandpits are located in floodplain of the Lužnice river between towns České Velenice and Veselí nad Lužnicí. The mining of gravelous sand was started in about 1949 and in some places continues till these days. The character and structure of the landscape are seriously harmed by any types of mining process. Therefore there are implemented some arrangements which lead to renewal of the landscape. The aim of this work is to intercept the actual composition of the vegetation on the selected landscape areas and compare how these two ways of landscape renewal take affect to the nature variety.
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The influence of extremal climatic phenomena at the recultivated and succession areas in Třeboňsko Protected Landscapa Area
NEMEŠKALOVÁ, Pavla
PLA Třeboňsko is located in the southeastern part of South Bohemia, and has an area of 700 km {$^2$}. It is an extraordinary region, where preserved valuable natural assets, but also many hundreds of years of human transformation of the cultural landscape. Basic river basin axis Třeboňsko are Třeboňsko Lužnice river in the floodplain which are 14 lakes created after gravel extraction. Coast lakes were part of forestry artificially reclaimed, partly remained left natural succession. Extreme weather events (floods, snow and strong wind calamity) in 2002, 2005, 2007 have different effects on the current status of coastal vegetation rehabilitated, compared with a similar old natural secondary succession.
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