Recovery Plan for the San Bruno Elfin and Mission Blue Butterflies, 1984

摘要

One purpose of the Endangered Species Act of 1973, as amended, is 'to provide means whereby the ecosystems upon which Endangered species and Threatened species depend may be conserved.' This plan addresses the recovery needs of the Mission blue and San Bruno elfin butterflies, and discusses their life histories and requirements for survival as well as describing characteristics of their remnant habitats. A comprehensive plan is outlined to maintain the endangered species through protection of their habitats. Because the two butterflies occur at other sites in the San Francisco Bay area, similar concerns of habitat protection, management, and rehabilitation also apply at these sites.