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Annual Biomass Data (2001-2021) - Litter Biomass 2021
Biomass estimates for shrubland-dominated ecosystems in southern California have, to date, been limited to national or statewide efforts which can underestimate the amount of... -
Large Tree Carbon
Large trees in this metric were calculated as the sum of branch and stemwood plus foliage for trees over 20 inches in diameter. This is intended to represent the most stable... -
Unemployment
Percentage of the population over the age of 16 that is unemployed and eligible for the labor force. Excludes retirees, students, homemakers, institutionalized persons except... -
Northern Spotted Owl Suitable Habitat
These data are derived using analysis described in Glenn et al. (2017). The authors have **** developed a landscape-scale model to predict the distribution and density of the... -
Basal Area
Basal area (BA) is a common forest structure measurement that provides a useful index of forest and habitat condition. Basal area is the cross-sectional area of the bole of a... -
Hispanic and Latino Population Concentration - Southern CA
Relative concentration of the Southern California region's Hispanic/Latino population. The variable HISPANIC records all individuals who select Hispanic or Latino in response to... -
SDI: Proportion of Max - Zeide 1983
Stand density index (SDI) helps vegetation managers to identify levels of site utilization and competition to determine management scenarios to meet objectives and is often used... -
Annual Biomass Data (2001-2021) - Aboveground Live Biomass 2021
Biomass estimates for shrubland-dominated ecosystems in southern California have, to date, been limited to national or statewide efforts which can underestimate the amount of... -
Northern California Winter Steelhead Distribution
Winter Steelhead Distribution June 2012 Version This dataset depicts observation-based stream-level geographic distribution of anadromous winter-run steelhead trout,... -
Laguna Mountains Skipper Habitat Range
The current range represents the boundaries for Laguna Mountains skipper ( Pyrgus ruralis lagunae ) as understood by the United States Fish and Wildlife Service. The critical... -
Hispanic and Latino Population Concentration - Central CA
Relative concentration of the Central California region's Hispanic/Latino population. The variable HISPANIC records all individuals who select Hispanic or Latino in response to... -
American Indian Land Areas
Lands under the control of federally recognized Tribes. These boundaries have been clipped to the boundary of California so that only the portions of each Tribal area that fall... -
Gold-Spotted Borer Presence and Rate of Spread
Tree mortality and other forest damage is detected by annual aerial surveys over forested lands by state and federal agency staff. The primary purpose of the aerial survey is to... -
Fire Ignition Probability Human Cause
These rasters depict the predicted human- and lightning-caused ignition probability for the state of California. Ignition is regulated by complex interactions among climate,... -
California Coastal Chinook Salmon Distribution
This layer was created to aid SWR biologists in establishing Critical Habitat for Chinook in the California Coastal ESU. The layer represents an approximation of Chinook... -
Shrub Cover Ratio
Total shrub cover as measured by the fractional non-overlapping absolute shrub cover, viewed vertically. Provides a first order measure of vegetation type when combined with... -
Low Income Population Concentration - Central CA
Relative concentration of the estimated number of people in the Central California region that live in a household defined as "low income." There are multiple ways to define low... -
Present Day Connectivity in California (Omniscape)
This data represents a wall-to-wall characterization of regional habitat connectivity potential in California for plant and animal species whose movement is inhibited by... -
Asian Population Concentration - Northern CA
Relative concentration of the Northern California region's Asian American population. The variable ASIANALN records all individuals who select Asian as their SOLE racial... -
Ringtail Cat Suitable Habitat
This layer shows highly suitable habitats for the reproduction and feeding of Ringtail Cat ( Bassariscus astutus ) within the species' range.