1. Department of Science for Nature and Environmental Resources; Sassari University; 07100; Sassari; Italy
2. Dipartimento di Agraria, sezione di Patologia vegetale ed Entomologia; Università di Sassari; 07100; Sassari; Italy
3. Department of Plant Systematics, Ecology and Theoretical Biology; Ecology Research Group of HAS; Institute of Biology; L. Eötvös University; Pázmány P.s. 1/C; H-1117; Budapest; Hungary