About the Authors

Serena Lucrezi

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Supervision, Writing – original draft

23952997@nwu.ac.za

Affiliation TREES – Tourism Research in Economics, Environs and Society, North-West University, Potchefstroom, South Africa

Martina Milanese

Roles Conceptualization, Investigation, Methodology, Writing – review & editing

Affiliation Studio Associato GAIA s.n.c., Genova, Italy

Carlo Cerrano

Roles Funding acquisition, Project administration, Writing – review & editing

Affiliation Department of Life and Environmental Sciences (DiSVA), Polytechnic University of Marche, UO CoNISMa, Via Brecce Bianche, Ancona, Italy

Marco Palma

Roles Methodology, Writing – review & editing

Affiliation UBICA s.r.l., Genova, Italy

Competing Interests

In the frame of the Marie Sklodowska-Curie grant agreement No. 643712 received from the European Union Horizon 2020 research and innovation programme, Studio Associato GAIA s.n.c. and UBICA s.r.l. acted as full beneficiaries and provided support in the form of salaries for authors MM and MP, but did not have any additional role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript. This does not alter our adherence to PLOS ONE policies on sharing data and materials. The authors have declared that no competing interests exist.