Analysis of the yearly bee colony winter losses over the last four years (2021). This evaluation is done since 2008, by the Institute of Biology of the University of Graz. The survey is part of the project "Zukunft Biene 2", which will be finished in 2021.
For previous project results and ongoing research visit our homepage: http://www.zukunft-biene.at/
Copyright (c) 2021 Hannes Oberreiter
Shapefiles 2020: We are using a modified version from data.gv.at, CC BY 4.0, map date 01.10.2019