Southern California Shared Service Area



Providing forest health technical assistance, training sessions, and technology transfer to:

  • Los Padres, Angeles, San Bernardino, and Cleveland National Forests
  • 2 National Monuments
  • 2 National Parks
  • 1 National Recreation Area
  • 1 National Preserve
  • Department of Defense lands
  • Many State Parks, ranging from the Central Coast south and inland, and ranging from beaches to high mountains and deserts.
  • 30 Indian Reservations

Unique Features

  • All four National Forests are managed primarily for recreation.
  • Portions of the service area comprise one of ten highest biodiversity hotspots at the global level.
  • Endemic forest tree species, including Pseudotsuga macrocarpa (bigcone Douglas-fir), Abies bracteata (Santa Lucia fir), and the rare Hesperocyparis forbesii (Tecate cypress) exist in this service area.
  • Two thirds of the human population of California lives within the service area, a total of 24 million people.
  • Much of the service area is subject to drought and density dependent tree mortality, proximally caused by bark beetle infestation.
  • The Coastal Ranges include areas infected with two exotic diseases: Phytophthora ramorum (sudden oak death) and Fusarium circinatum (pine pitch canker).
  • The busiest seaports in the United States are located in southern California, providing opportunities for importation of exotic pests.
  • Major native forest pests include Heterobasidion root disease, Arceuthobium spp. (dwarf mistletoe), Dendroctonus spp. (bark beetles), Ips spp. (pine engraver), and Melanophila californica (California flatheaded borer).
  • Other exotic pests include Agrilus auroguttatus (goldspotted oak borer) and Euwallacea sp. (polyphagous shot hole borer).
  • Urban forests are an important component in this service area due to the presence of large urban areas and extensive urban interface with public lands.


Informational Flyers


2009 Biological Evaluations


More Southern California Biological Evaluations

Information on Heterobasidion Root Disease






Contact Information:

Southern California Shared Service Area
San Bernardino National Forest
602 S. Tippecanoe Ave.
San Bernardino, CA 92408-3430
(909) 382-2871
(909) 382-2620
(909) 382-2725