Embodied in the existing environmental legislation and policy regime that governs resource management within British Columbia is the concept of “coarse-filter” and “fine-filter” management.
Coarse-filter management refers to the conservation of landscapes through networks of protected areas and management zones that allow natural processes to persist. Conserving the ecological communities of a given region through coarse filter management will also conserve those species that co-occur on the landscape, share common ecological processes and/or threats and are expected to behave similarly to development pressures and management actions.
Some species, ecosystems and features need to be conserved through individual, often localized efforts because they fall through the mesh of the coarse filter. This process is termed fine-filter management, and refers to conservation through localized protection measures such as individual species protection plans or protection of critical habitats or features (dens or rookeries) that are requisite for key life functions.
This framework was used to define the suite of starting values, as well as to help define the nesting of related values. The starting values are:
- hydro-riparian ecosystems (riparian habitat, water quantity)
- old forest
- high priority wildlife habitat
- resource features
- cultural heritage resources