Number of cross-patch infestation events due to firewood transportation between patches.

Patches 1–5 are in Partition 1 while Patches 6–10 are in Partition 2. Columns represent the patches being infested by other patches (e.g. patch (column) 1 is infested by patch (row) 4 on average 1.65 times during the simulation time horizon) and each row represents a patch causing infestations in other patches. Diagonal values are zero by definition. The last column represents the total number of infestation events spread by row-patches while last row represents the total number of infestation events received from column-patches. Data available in the supplementary material: S1 Matlab Data File.