The analysis of the main weeks of Lithuanian macrophytes reserchers, classification of rivers and the main types of grows of the rivers with plants are presendet in the work. The Mūša river hadn’t been investigated from the standpoint of botany yet. It begins 5 kilometers avay from Juodeikiai in the western port of the Mūša Tyrelis (by Taminskas, 1997). The Mūša river was reserched in 157 kilometers long. The botanical reserches were carried out ofter the methodics of general macrophytes investigation (by Katanskaja, 1981). It was used Brown-Blanquet (1964) or the so-called Zurich-Montpeljė school researches of floro and principles of classification, then too synthatical code to pick out associations (by Balevičienė, 1991; by Pott, 1992). Macrophytes make up zones till 4 metres Width in the Mūša river. Longer areas in the river take up such associations: Potamogetonetum pectinati, Phragmitetum australis, Typhaetum angustifoliae, Phalaridetum arundinacea. In order to clear up the arrangement of various macrophytes ecological groups and their forming associations, there were fulfilled 5 vegetation side-views in Mūša river. 68 species of macrophytes that belong to 26 families ant 49 genus were inventoried in the Mūša river. The following families distinguish the lorgest specific variety. These are Cyperaceae (9 species), Poaceae (8 species), Lamiaceae (5 species), Polygonaceae (4 species), Apiaceae, Scrophulariaceae and Lemnaceae (3 species). The associations that, were... [to full text]

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.

The biodiversity of vascular plants and invertebrates (beetles) was studied on the strips by the railway track during two years in South Bohemia. The phytocenological mapping and pitfall trapping was used for the studying of model groups. The biodiversity of both studied groups was relatively high with different ecological characteristic of its communities. The both hygrophilous and xerophilous species occur in locality. The ubiquitous eurytopic species of beetles prevail in communities, but the rare specific species were found also. The number of specimen of both invasive and rare plant species was low. The railway track play the important role of biocentrum more for invertebrates than plants.