Fig. 1From: Mast seeding in deciduous forests of the northern Apennines (Italy) and its influence on wild boar population dynamicsAnnual seed production of the deciduous tree species from 1991 (1992 for oak, 1993 for chestnut) to 2010. The dot line refers to beech mast seeding threshold, the dark straight line refers to chestnut mast seeding threshold, the dot-dashed line refers to Turkey oak mast seeding thresholdBack to article page