1. Dipartimento di Storia, Scienze dell’Uomo e della Formazione. Università degli Studi di Sassari, Italy
2. Complexity and Socio-Ecological Dynamics (CaSEs) Research Group, Barcelona, Spain and Universitat Pompeu Fabra, Departament d'Humanitats, C/Ramon Trias-Fargas 25-27, 08005, Barcelona, Spain and School of Geography, Archaeology and Environmental Studies, University of the Witwatersrand, Johannesburg, South Africa