De Frenne, Pieter
RodrÃguez-Sánchez, Francisco
De Schrijver, An
Coomes, David A.
Hermy, Martin
Vangansbeke, Pieter
Verheyen, Kris
Article History
Received: 4 February 2015
Accepted: 3 July 2015
First Online: 17 August 2015
Competing interests
: The authors declare no competing financial interests.