1. R. Brogi (http://orcid.org/0000-0002-2326-600X)
2. F. Brivio (http://orcid.org/0000-0002-1449-8335) (fbrivio@uniss.it)
3. C. Bertolucci (http://orcid.org/0000-0003-0252-3107)
4. M. Benazzi, Dept of Life Sciences and Biotechnology, Univ. of Ferrara, Ferrara, Italy.
5. S. Luccarini, E. Bottero, N. Columbano, M. Apollonio and S. Grignolio (http://orcid.org/0000-0002-0786-2004), Dept of Veterinary Medicine, Univ. of Sassari, Via Vienna 2, IT-07100 Sassari, Italy.
6. N. Cappai and C. Pedrazzoli, Foreste Casentinesi National Park, Pratovecchio (AR), Italy.