OS no. 1: Terrestrial biogeographic characterization gates

The first issue of the series ORLICKÉ STUDY, an online journal focusing on regional culture, history and natural beauty of Eagle Mountains. First of published work focuses on biogeographical characteristics of Earth's Gate and its author is Jan Divíšek, acting at the Faculty of Masaryk University in Brno.

The Land Gate is a picturesque mountain valley, where the Wild Eagle changing the direction of flow and breaks your way through the main ridge of the Eagle Mountains in the heart of Bohemia. In the past he separated the German-speaking Bartosovice and českojazyčný Klášterec. Today we Terran gate understood as a natural route linking the Czech basin borders with the Republic of Poland.

Biogeographic research in the Valley Provincial gates Jan Divíšek as a student of the Faculty of Science, Masaryk University in Brno engaged for three years. The research was to "reconstruct" the natural state of the landscape in geobiocoenological concept prof. A. goldsmiths. This is the definition of typical communities of plants and animals that would have occurred in various parts of the valley, depending on the particular environmental conditions (geology, topography, climate, hydrological and soil conditions). The potential natural condition Valley Provincial gates were then compared with its current state, a state of land exposed to human interference. Based on this comparison were defined more natural, therefore ecologically important part of the valley. The paper presents an overview of each species of mammals, birds, amphibians and reptiles, with whom there observant visitor may encounter. The first time was also in the valley Provincial gateway for research schránkatých species of gastropods. The author also tries to draw attention to the risks, which should be avoided in this area. Such a risk might be spreading geographically non-native invasive plant species, which in turn displace native species from their natural habitats. This kind of example. Blooming yellow coneflower drip with which we can meet in the southern part of the valley on the right bank of the Wild Eagle.

Provincial valley gate is of great importance both landscape and ecological and biogeographic perspective. From the landscape point of view it is a valuable site of the original riverbed balvanitého Wild Eagle with interesting rock formations on the slopes above the river. From an environmental perspective it is important provincial gate high diversity of flora and fauna, with fragments of mixed forests, which once covered almost all of the Eagle Mountains. Biogeographical significance lies in the role of mountain valleys as migration routes as animals and plants from higher altitudes to lower and vice versa.


ORLICKÉ study. 1

Jan Divíšek
Biogeographical characteristics Provincial gates in the Eagle Mountains - community, diversity

Download in electronic archives here.



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