1 Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, Second University of Naples, via Vivaldi 43, 81100 Caserta, Italy; Ecole Pratique des Hautes Etudes (PALECO EPHE), Centre for Bio-Archaeology and Ecology, Institut de Botanique, F-34090 Montpellier, France; giovanna.battipaglia@unina2.it.
2 Department of Agricultural and Food Sciences, University of Naples Federico II, via Università 100, I-80055 Portici (Naples), Italy;
3 Forest Ecology and Forest Management Group, Wageningen University, PO Box 47, 6700 AA Wageningen, The Netherlands;
4 Dipartimento di Bioscienze e Territorio, Universita' degli Studi del Molise, 86090 Pesche, Italy;
5 University of Helsinki Forest Sciences, University of Helsinki, Unioninkatu 40, PO Box 24, FI-00014 Helsinki, Finland.