Changes in Biodiversity in the National Nature Reserve of the Bohdanečský Pond from the Explorations by the Hadač Brothers in the 1950’s to the Present Times

This paper deals with the botanically interesting locality of the Bohdanečský pond and its surroundings in the Pardubice region. Thanks to botanists’ interest in this locality, there is a lot of floristic data that can be used for evaluation of the area development in terms of species and habitat diversity. Although there is a demonstrable decline of rare plant species, this locality still belongs to the most valuable reserves in the Czech Republic. The current state of the locality is influenced by many factors, e.g. spontaneous succession, management methods of the NNR, the influence of landscape management around the NNR, or global factors (eutrophication, climate change, etc.). Present surveys carried out since 2000 show that the condition of the NNR can be positively influenced by appropriate controlled interventions which include regular meadow mowing and removal of harvested biomass, occasional mowing of reeds and tall sedge vegetation, as well as revitalisation measures for surface water (ponds, pools, water flows).