The number of species at risk (California state listed threatened & endangered (T&E), rare, endemic, vulnerable, species of special concern and USFS and BLM managed indicator species).

Framework / Assessment
Summary
Evaluate the number of forest and rangeland associated species that are at risk or in serious decline. Biological diversity is dependent on species richness and population levels. Change in species populations and distribution can be indications of problems with ecosystem health, productivity, stability and resilience. Declines in species that are listed as at-risk or special concern, such as rare, threatened, endangered or vulnerable, are indications that increased intervention or action may be required to ensure their survival.