Habitat Concentration Areas (HCAs) with Protected Areas, Western Washington

This dataset represents the Habitat Concentration Areas (HCAs) with including naturalness within protected areas.

We first made a habitat surface that was essentially the inversion of the Resistance Surface with Protected Area Benefits, and a reclassification to good habitat for some of the landscape characteristics that are hard for movement, yet count as wild habitat, like steep slopes. We then used Gnarly Landscape Tools to identify the draft set of HCAs. Hence, cells that were in protected areas had a higher likelihood of becoming an HCA, all else being equal than cells outside of protected areas. We then enhanced this by using only Gap status 1 and 2 lands for the really large draft HCAs (removing area from the HCAs layer), and adding protected areas that are over 1,000 acres (adding area from the HCAs layer).