Fig. 6
From: Dispersal variability and associated population-level consequences in tree-killing bark beetles
Colonization density as a function of distance to source in different habitat types. Each grey dot represents one infested tree indicating its colonization density (n). Dotted horizontal lines mark the mean value over all infested trees, and the dashed f = ax -b -shaped function visualizes the emerging strongly distance-dependent limit in number of beetles colonizing a tree