1. CIMO-Mountain Research Center, Department of Biology and Biotechnology, Agricultural College of Bragança; Polytechnic Institute of Bragança; Campus Santa Apolónia E 5301-855 Bragança Portugal
2. Polytechnic Institute of Castelo Branco; 6000-084 Castelo Branco Portugal
3. Center for Forest Studies; Institute of Agronomy, Universidade Lisboa; 1349-017 Lisbon Portugal
4. Academy of Veterinary Sciences of Galicia; Edificio EGAP; Rúa Madrid, no. 2-4 15707 Santiago de Compostela (A Coruña) Spain
5. CEB - Centre of Biological Engineering; University of Minho; 4710-057 Braga Portugal
6. Agricultural College of Bragança, Polytechnic Institute of Bragança; Campus Santa Apolónia E; 5301-855 Bragança Portugal