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Changes in the distribution of invasive neophytes in the riparan vegetation of the Berounka river
Randová, Nela ; Matějček, Tomáš (advisor) ; Lipský, Zdeněk (referee)
Riparian vegetation along the water courses is one of the places that are highly vulnerable to the spread of invasive alien plants. Water corridors allow their easy and rapid spread to new area. The diploma thesis occupies with changes in the distribution of the invasive neophytes in the riparian vegetation of the Berounka river during the years 2015-2018. The objective of this study was to find out how changes in the course of each year will be reflected and whether a certain trend of population development can be traced. In connection with this, the thesis occupies with the possible influence of extremely dry years 2015 and 2018 on the occurrence of invasive neophytes. Field research took place on the banks of the Berounka river from the village of Čilá near Skryje to the confluence of the Berounka and Vltava river in Prague-Lahovice during the summer months in 2015, 2016, 2017 and 2018. The riparian vegetation was divided into 500 ± 150 m long segments. There were 90 segments where the occurrence and abundance of 17 invasive neophytes were mapped. In total, occurrence of 14 taxons was registered. The most frequent taxons were Robinia pseudacacia, Impatiens glandulifera and Solidago sp. in the Berounka riverbank vegetation. The highest number of specimen was recorded for invasive neophyte...

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