Corridors

To map corridors for each target, we followed methods developed by the Washington Connected Landscapes project and implemented in the Linkage Mapper ArcGIS toolbox. We first calculated the adjacency of all pairs of Core and GOA patches within the network. Patches were not considered adjacent if they were beyond the maximum dispersal distance (see table below) or if another patch was closer in cost-distance relative to the other patch in the pair. For all adjacent patches, we calculated the least-cost corridor, and mapped it using a threshold for maximum corridor width (see table below).

Parameter	Xeric Ecosystem	Mesic Ecosystem	Greater Sage-grouse
Maximum dispersal distance (km)	100	100	100
Corridor width (km)	10	10	10