In this coastal marten landscape connectivity modeling project, we produced a "primary" connectivity model in which modeled habitat cores and a resistance surface were input into Linkage Mapper to produce least-cost paths and corridors that connect habitat cores. We also produced a "secondary" connectivity model in which the habitat cores were replaced with polygons delineating the boundaries of the four extant population areas (USFWS 2018; Fig. 1 of report). This allowed us to examine whether there were additional areas that may represent potentially significant corridors that were not identified in the primary model.

This dataset contains the least-cost corridors produced by the secondary connectivity model in which extant population areas (EPAs) are used as habitat cores. To provide context on the connectivity modeling process, refer to the metadata record used to describe the development and output of Least-cost paths and corridors in our primary model. This description can be directly applied to the production of our secondary model as well, by replacing any mention of "habitat cores" with "EPAs".

This is an abbreviated and incomplete description of the dataset. Please refer to the spatial metadata for a more thorough description of the methods used to produce this dataset, and a discussion of any assumptions or caveats that should be taken into consideration.