California Department of Fish and Wildlife

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Department of Fish & Wildlife
Biogeographic Data Branch

Physical Address:
1700 9th Street, 4th Floor
Sacramento, CA 95811

Mailing Address:
1416 9th Street, Suite 1266
Sacramento, CA 95814

(916) 322-2493 • Email BDB

California Interagency Wildlife Task Group


Created by an interagency Memorandum of Understanding in 1981, CIWTG has a mission to promote improved understanding of the biology, distribution, and habitat requirements of California's vertebrate wildlife, and the application of that information to the management of California's lands.

This task group facilitates cooperation between agencies in California and fosters the development of up-to-date, reliable, and inter-relatable statewide natural resource inventories and classifications for wildlands. CIWTG strives to develop and make accessible, in cooperation with all interested parties, an objective body of knowledge and better tools to apply that knowledge to the management of land and its wildlife inhabitants.



An updated Memorandum of Understanding was signed in 1985 by sixteen agencies whose representatives have continued to meet quarterly ever since. Member agencies include:


To date, the group's primary accomplishment has been the initial development and oversight of the California Wildlife Habitat Relationships (CWHR) System, now maintained by the California Department of Fish and Game. CIWTG goals are to:

  • Facilitate a common terminology for vertebrates and their habitats.
  • Promote continually improved knowledge of the biology, distribution, and dynamics of vertebrates and the biological communities in which they occur.
  • Encourage and coordinate continual improvement in analytical and synthetic models for understanding, enhancing, and applying accumulated knowledge to social policy.
  • Provide technical products and expertise on wildlife biology and management.
  • Serve as a forum to discuss and apply scientific ideas in wildlife management and conservation biology.