Gundega Done1,
Mārcis Saklaurs2,
Kristaps Blūms3
- Riga street 111, Latvia
- Nature Institute of Excellence, Salacgrīvas parish, Latvia and Department of Forest tree breeding and climate change, LSFRI "Silava", Riga street 111, Salaspils, Latvia
- Department of Wildlife management, LSFRI "Silava", Riga street 111, Salaspils, Latvia