San Bruno Mountain Habitat Conservation Plan

The purpose of the San Bruno Mountain Habitat Conservation Plan is to provide guidance for developing scientifically sound management and monitoring plans for the conservation of: a) the habitat of the mission blue, callippe silverspot, San Bruno elfin and bay checkerspot butterflies, and b) the overall native ecosystem of San Bruno Mountain in perpetuity. This Habitat Conservation Plan is an implementation plan for the management and monitoring activities authorized in the HCP and is based on lessons learned from habitat management activities conducted over the past 33 years. These efforts have protected the core habitat areas (comprising approximately 1,290 acres) of the mission blue, callippe silverspot, and San Bruno elfin butterfly populations--the three known listed butterflies that occur on the mountain--from being overtaken by weed infestations and scrub encroachment. These efforts, however, have focused on the highest priority invasive species and current management and funding are incapable of controlling all invasive species that are present on the mountain.