- Metric Name:  Pacific Fisher

- Data Vintage:  2021

- Unit Of Measure: Binary, 0 = not suitable, 1 = suitable

The Pacific fisher population in the southern Sierra is federally listed as a threatened population and resides primarily on National Forest System lands. Habitat management for this species is determined based on a Conservation Strategy developed by the US Forest Service and augmented by a recovery strategy developed by the US Fish and Wildlife Service.- Creation Method:  CWHR classifications are based on a combination of the F3 model for canopy cover, F3 size class and vegetation data. The vegetation data integrated the F3 forest type class with the National Land Cover Database (NLCD) and CALVEG type to include a variety of tree, shrub, grassland, and water dominated habitats. Species are considered present, and habitats considered suitable for each 30m cell for which the canopy cover-size-vegetation combination have been deemed suitable for the reproduction of that species in the California Wildlife Habitat Relationship database.

Suitable habitat for the Pacific fisher is based on CWHR moderate and high suitability habitat for denning and foraging. CWHR suitability values were used to create a data layer that separately identifies suitable denning and suitable foraging habitat which meets the following criteria:

--	Suitable foraging vegetation types: WHRTYPE = DFR, EPN, JPN, MHC, MHW, MRI, PPN, SMC, WFR, RFR, LPN

--	Suitable foraging habitat: size/density classes = 4M, 4D, 5M, 5D, 6

--	Suitable denning vegetation types: WHRTYPE = DFR, EPN, JPN, MHC, MHW, MRI, PPN, SMC, WFR

--	Suitable denning habitat: size/density classes = 4D, 5M, 5D, 6

The combined (denning and foraging) suitable habitat layer has been further refined and clipped to the U.S. Fish and Wildlife Service species range extent from the Environmental Conservation Online System (ECOS) available at https://ecos.fws.gov/ecp/species/3651#rangeInfo.

2019 to 2021 Update:  Adjustments for 2021 canopy cover and size class were made and then integrated to represent CWHR habitat attributes – see CWHR section below for adjustment details.

- Credits:  --	Forest type designation (FORTYPE) from Forest Vegetation Simulator (FVS) F3; 2021

--	National Land Cover Database (NLCD); 2019

--	Existing Vegetation (CALVEG), Region 5, MARS Team; 2016

--	California Department of Fish and Wildlife CWHR version 9.0 (CDFW); 2014