Funding for this research was provided by:
Austrian Climate Research Programme (GZ B368633, KR13AC6K11076)
Received: 8 July 2019
Accepted: 7 November 2019
First Online: 20 November 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: This study does not involve research on human participants or animals.
: Informed consent was obtained from all individual participants included in the study.