- Delegate for TUZVO in European Forest Institute
- Forestry Based Sector Technology Platform, Head of National Support Group
- Eueropean Universities Association, Member of Commitee
- Research Policy Working Group EUA
- Member of Editorial Board in J. of Forest Science
- Member of Editorial Board in Journal of Central European Agriculture
- Member of European Economic and Social Committee Brussels
- Member of NAT Economic and Social Committee
- Member of ECO Economic and Social Committee
- Member of REX Economic and Social Committee
- Delegate of Slovak Republic in European Bird Census Council
- Delegate of Slovak Republic in International Union of Game Biologists
- Member of Scientific Board at MENDELU Brno
- Member of Scientific Board at ČZU Praha
- Expert for CIC
- Mitteleuropäisches Instituts für Wildtierökologie (Board Member and Vicepresident)
- Mitteleuropäisches Gesellschaft für Jagdwissenschaft (Board Member and Vicepresident)
- Středoevropský institute ekologie zvěře, Brno, ČR
- Institute of Systematics and Evolution of Animals, Polish Academy of Sciences
- Cooperation in the research of the forest management impact on diversity of forest birds
Cooperation in the research of fish eating birds
- Cooperation in the research of the forest management impact on diversity of forest birds
- Member of European Ornithologists’ Union,
- Member of British Ornithologists’ Union,
- Member ofGerman Ornithologists Society,