- Metric Name: American/Pacific Marten - Data Vintage: 2021 - Unit Of Measure: 30m data – Binary, 0 = not suitable, 1 = suitable The American martin is a species of special concern, but it is not federally, or state listed at the present time. It is identified as a focal species by Region 5 of the US Forest Service. The Pacific marten is a high elevation, old forest associate that is sensitive to forest management and is an important carnivore in high elevation food webs. This metric evaluates the 1000 ac around each 30m pixel to determine if it meets the minimum habitat requirements to support a territory.- 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 highly suitable for the reproduction of that species in the California Wildlife Habitat Relationship database. Habitat that meets any of the following criteria is considered suitable: -- Suitable foraging vegetation types: WHRTYPE = MRI, RFR, DFR, WTM, LPN, SCN, MHC -- Suitable foraging habitat: size/density classes = 4M, 4D, 5M,5D, 6 -- Suitable denning vegetation types: WHRTYPE = MRI, RFR, DFR, LPN, SCN, MHC -- Suitable denning habitat: size/density classes = 4M, 4D, 5M, 5D, 6 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