• plant communities, syntaxonomy and synecology - aquatic and marsh vegetation; vegetation of wet meadows and mires; vegetation of beech, scree and ravine forests
• chorology, taxonomy and ecology of selected vascular plants - Scilla bifolia agg., Orchidaceae
• environmental conditions-aquatic macrophytes relationship in running water
• dynamics of plant communities

RECENT PROJECTS

• Comparative diversity of macrophytes in various aquatic habitats (Principal investigator)
• Plant communities of Slovakia. Forest and shrub vegetation (co-worker)

SELECTED FINISHED PROJECTS

• The distribution and diversity of aquatic macrophyte vegetation in water-bodies of Slovakia in relation to environmental factors and anthropic disturbance (Principal investigator)
• Diversity of macrophytes along ecological gradients of watercourses and alluvial wetlands in Slovakia (Principal investigator)
• Demecological, synecological and genetical aspects of the colonization of abandoned pastures and meadows by forest trees (co-worker)