Funding for this research was provided by:
Bundesamt für Naturschutz (351783 1500)
Stiftung Mercator Schweiz
Article History
Received: 13 February 2020
Accepted: 25 May 2020
First Online: 11 August 2020
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential competing interest.