Funding for this research was provided by:
Bijzonder Onderzoeksfonds UGent
Received: 2 December 2019
Accepted: 25 June 2020
First Online: 16 July 2020
Ethics approval and consent to participate
: The study is approved by the Ethical Committee of the Research Institute for Nature and Forest (ECINBO09).
: Not applicable.
: The authors declare that they have no competing interests.