1. Department of Plant Sciences, Faculty of Biosciences, Norwegian University of Life Sciences (NMBU), Ås, Norway
2. Department of Global Development, Cornell University, Ithaca, NY, USA
3. Department of Mathematical Sciences, University of Copenhagen, Copenhagen, Denmark
4. Biodiversity Conservation Initiative (BCI), Mzuzu, Malawi
5. Department of International Environment and Development Studies/Noragric, Faculty of Landscape and Society, Norwegian University of Life Sciences (NMBU), Ås, Norway