Fig. 3From: Climatic and anthropogenic factors explain the variability of Fagus sylvatica treeline elevation in fifteen mountain groups across the ApenninesFagus sylvatica treeline average and maximum elevations in the 15 selected Apennine mountain groups according to aspect: a north (dark gray) and south (light gray) average elevation, b differences between north and south average elevation, c North (dark gray) and South (light gray) maximum elevation, d differences between north and south maximum elevations. Within each mountain group, the maximum treeline values is the absolute highest elevation measured; average treeline elevation values are calculated as a mean of all peaks belonging to the respective mountain groupBack to article page