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The thesis focuses on amphibian species diversity in the National Park Podyjí. There were chosen four areas with various anthropogenic loads, on which monitoring was being regularly performed. Those areas were specifically ponds; Čížovský, Dehťák, under Lesná and a swimming hole called Na Pyramidě. To achieve a numerical representation along with a representation of species, invasive and non-invasive monitoring methods were used. During the research, eight different species were detected, even though there were eleven of them founded in the past. Among the most abundant species is the Common toad, the Agile frog, the Common frog, the Northern crested newt and the Smooth newt. Surprisingly, the presence and successful reproduction of northern crested newts was proved in the pond under Lesná, on the other hand, there were no signs of moor frogs or any other common water frogs. The collected data were afterwards used to calculate synecological characteristics (dominance, species diversity, equitability and the Jaccard similarity coefficient), while the achieved results were compared with the other authors and evaluated in terms of anthropogenic influence. The amphibians in the national park are threatened by a high fish stock and the absence of littoral vegetation. Recommended management within the areas would be to catch and then deploy the appropriate species of fish, as the case may be, build barriers and create the littoral zone. |
