Funding for this research was provided by:
Svenska Forskningsrådet Formas (2014-1435, 2012-2124)
Kungl. Skogs- och Lantbruksakademien (H14-0162-CHF)
Text and Data Mining valid from 2019-09-09
Received: 7 July 2019
Accepted: 14 August 2019
First Online: 9 September 2019
Ethics approval and consent to participate
: Not applicable.
: The authors declare that they have no competing interests.