Environmental Groups Seek Protection for Mountain Lions in Southern California

The Center for Biological Diversity and Mountain Lion Foundation submitted a petition to the California Fish and Game Commission (the Commission) to list mountain lions (Puma concolor) in southern and central California as threatened or endangered pursuant to the California Endangered Species Act.  The petition identifies habitat loss and fragmentation, due to roads and development, as significant threats to the survival of the local populations.

The petition acknowledges that there is no reliable estimate of mountain lion abundance in California, but includes estimates for several populations within the evolutionarily significant unit the petition describes.  The boundary of the proposed evolutionarily significant unit encompasses the area south of I-80 in northern California and west of I-5, including the Central Coast and much of the Central Valley, and all of southern California south of I-15, including portions of San Bernardino and Kern Counties and all of Imperial, Los Angeles, Orange, Riverside, and San Diego Counties.

While the federal Endangered Species Act extends protection to species, subspecies, and distinct population segments, the California Endangered Species Act only extends protection to species and subspecies.  Nonetheless, the decision of a Court of Appeal to uphold the listing of two populations (or evolutionarily significant units) of coho salmon in 2007 appears to have affirmed the Commission’s interpretation of the term subspecies as used in the California Endangered Species Act. (Cal. Forestry Assn. v. Cal. Fish & Game Com. (2007) 156 Cal.App.4th 1535.)

Commission staff must conduct a 10-day review of the petition for completeness.  If Commission staff deem the petition complete, the next step is referring it to the California Department of Fish and Wildlife to conduct a 90-day evaluation of the petition.

  • Partner

    Paul Weiland is chair of Nossaman’s Environment & Land Use Group.  He focuses his practice on litigation, permitting, and compliance counseling.  Paul’s clients include public agencies, publicly regulated utilities, private ...

Nossaman’s Endangered Species Law & Policy blog focuses on news, events, and policies affecting endangered species issues in California and throughout the United States. Topics include listing and critical habitat decisions, conservation and recovery planning, inter-agency consultation, and related developments in law, policy, and science. We also inform readers about regulatory and legislative developments, as well as key court decisions.

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