Fig. 3From: Influence of individual tree characteristics, spatial structure and logging history on tree-related microhabitat occurrence in North American hardwood forestsNumber of TreM classes predicted based on the explanatory variables of the Poisson regression: a) DBH, b) tree vigor, and c) TreM-trees aggregation. #: Number of TreM-trees in the 5 closest living trees. Details of the model are presented in Table 4Back to article page