1. Department of Human Geography, Stockholm University, Stockholm, Sweden
2. Department of Archaeology and Ancient History, Uppsala University, Uppsala, Sweden
3. DRACONES Research Group, Universidad de León, Ponferrada, Spain
4. Faculty of Humanities, Art and Culture, History, Antiquity, Vrije Universiteit, Amsterdam, The Netherlands
5. Departamento de Enxeñería Agroforestal, Campus Terra, Universidade de Santiago de Compostela, Lugo, Spain
6. Instituto de Biodiversidade Agraria e Desenvolvemento Rural, Campus Terra, Universidade de Santiago de Compostela, Lugo, Spain
7. Spatial Information Laboratory (SPINlab), School of Business and Economics, Vrije Universiteit, Amsterdam, The Netherlands
8. Geomatics, Department of Environmental and Life Sciences, Karlstad University, Karlstad, Sweden
9. Geography, Middlebury College, Middlebury, VT, USA
10. Spatial Information Laboratory (SPINlab), School of Business and Economics, Vrije Universiteit, Amsterdam and the Netherlands eScience Center, Amsterdam, The Netherlands
11. Department of Agricultural, Food and Forest Sciences, University of Palermo, Palermo, Italy