Fig. 5From: Influence of individual tree characteristics, spatial structure and logging history on tree-related microhabitat occurrence in North American hardwood forestsBoxplot of sugar maple and American beech DBH, divided according to the occurrence of TreMs (TreM: presence of at least one TreM class; no TreM: no TreM class). Red dots indicate mean values, and letters indicate significant differences between the species/TreM classesBack to article page