Mollusc fauna in three localities of continental flooded meadows in Úpor-Černínovsko Nature Reserve and in
Káran ý - Hrbáčkovy tůně Nature Reserve in the Middle Polabí lowland were studied. No species of conservation importance were found there, and most of the species found belong to generalists. The sites form a gradient from un-mowed to completely mowed meadow. Management resulted in a decrease in species diversity and, conversely, an increase in abundance towards the completely mowed site characterized by a high abundance of Vertigo pygmaea, species of early succession stage.