The study presents the Bohemian milieu’s relationships to one of the imperial aristocratic dynasties of the High Middle Ages, the margraves from Vohburg. These ties are observed on several levels where Bohemian-Vohburg contacts might have occurred. At the highest dynastic level, it is possible to work with sporadic contemporary appearances of representatives of the Vohburg and Přemyslid dynasties, which later found their expression also in the ecclesiastical area, because it seems that the Vohburg family could have had an influence on the arrival of the Premonstratensians and Cistercians to Bohemia. As the final contact area the Cheb district is considered, which in the given period was not yet a component of the Bohemian state, but the Vohburg family can be regarded as those who gave the region its high medieval appearance. and Tomáš Velička.
Vodní toky v ČR jsou v posledních sto letech vystaveny intenzivnímu antropogennímu tlaku. Tyto činnosti se projevují také na populaci druhu marše pobřežní (Tetrix tuerki), který se vyskytuje se pouze na štěrkových lavicích podhorských potoků a řek. Národní přírodní památka Skalická Morávka je ideálním místem pro tento druh. Dynamika štěrkových lavic je velmi důležitá pro existenci tohoto druhu., Water flows have been under intensive anthropogenic pressure over the last 100 years. These activities also influenced populations of Tetrix tuerki, which only occurs on gravel benches of streams and rivers (dynamics of the benches are crucial for its existence). The National Natural Monument Skalická Morávka provides an ideal habitat., and Kateřina Kuřavová.