The draft corridors for Blueprint 2.1 are now up on the Conservation Planning Atlas. The methods are very similar to those from Blueprint 2.0 – Identify hubs to connect and then least cost paths between them.
To identify hubs, we selected patches that were at least 2000 hectares (~ 5000 acres) and either permanently protected or in the top 15% of Blueprint priorities. For hubs outside of the LCC, we used local connectedness from TNC’s resilience analysis as a proxy for Blueprint priorities. Final Conservation Blueprints from surrounding LCCs are not ready yet but local connectedness tends to work well as a proxy.
We then use Linkage Mapper to calculate least cost paths between hubs. The Blueprint priority layer defines the cost for moving across each pixel. Moving across high priority areas is easier and moving across low priority areas is harder.
So far the updated corridors, while certainly not perfect, are performing better in testing that those from Blueprint 2.0. They more closely align with key movement areas for Black Bear, potential future areas for Florida Panther, and are taking more realistic routes near urban areas.
Interested in seeing the new corridors? Go to the Blueprint 2.1 gallery on the Planning Atlas
Have some thoughts on the draft corridors or the Blueprint in general? Go to the Blueprint 2.1 review page