1. Tapio Ltd, Helsinki, Finland
2. Oxford Systematic Reviews LLP, Oxford, UK
3. Department of Biology, University of Oxford, Oxford, UK
4. School of Archaeology, University of Oxford, Oxford, UK
5. Department of Forest Sciences, University of Helsinki, Helsinki, Finland
6. School of Forest Sciences, University of Eastern Finland, Kuopio, Finland
7. Natural Resources Institute Finland (Luke), Helsinki, Finland