The California Coast Ranges Biosphere Reserve (established 1983) was a

UNESCO The United Nations Educational, Scientific and Cultural Organization (UNESCO ) is a List of specialized agencies of the United Nations, specialized agency of the United Nations (UN) with the aim of promoting world peace and International secur ...

Biosphere reserve located along the

California Coast Ranges The Coast Ranges of California span from Del Norte County, California, Del Norte or Humboldt County, California, south to Santa Barbara County, California, Santa Barbara County. The other three coastal California mountain ranges are the Trans ...

of northern California and the

San Francisco Bay San Francisco Bay (Chochenyo language, Chochenyo: 'ommu) is a large tidal estuary in the United States, U.S. state of California, and gives its name to the San Francisco Bay Area. It is dominated by the cities of San Francisco, California, San ...

area until June 2017. This biosphere reserve includes a highly diverse complex of evergreen sclerophyllous woodland, coastal,

estuary An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime enviro ...

and marine

ecosystem An ecosystem (or ecological system) is a system formed by Organism, organisms in interaction with their Biophysical environment, environment. The Biotic material, biotic and abiotic components are linked together through nutrient cycles and en ...

Purpose

The city of

San Francisco San Francisco, officially the City and County of San Francisco, is a commercial, Financial District, San Francisco, financial, and Culture of San Francisco, cultural center of Northern California. With a population of 827,526 residents as of ...

is a focal point for coastal industry and trade. Tourism, some agriculture and fisheries, transportation, manufacturing, military installations, and research and educational institutions are also important to the regional economy. The primary aim of the biosphere reserve is to develop a commitment to ecosystem management among the various management agencies. Given the intense human pressure of the area, the conservation of

biodiversity Biodiversity is the variability of life, life on Earth. It can be measured on various levels. There is for example genetic variability, species diversity, ecosystem diversity and Phylogenetics, phylogenetic diversity. Diversity is not distribut ...

is very challenging. Of particular concern is to raise environmental awareness among the diverse urban communities.

Sites

The California Coast Ranges reserve encompasses a number of protected sites under management by various state and federal agencies: * Jackson Demonstration State Forest (

California Department of Forestry and Fire Protection The California Department of Forestry and Fire Protection, colloquially known as CAL FIRE, is the fire department of the California Natural Resources Agency in the U.S. state of California. It is responsible for fire protection in various area ...

) * Landels-Hill Big Creek Reserve ( University of California Natural Reserve System) * Heath & Marjorie Angelo Coast Range Preserve ( University of California Natural Reserve System) * North California Coast Range Preserve Research Natural Area (

Bureau of Land Management The Bureau of Land Management (BLM) is an agency within the United States Department of the Interior responsible for administering federal lands, U.S. federal lands. Headquartered in Washington, D.C., the BLM oversees more than of land, or one ...

) * Redwood Experimental Forest (

United States Forest Service The United States Forest Service (USFS) is an agency within the United States Department of Agriculture, U.S. Department of Agriculture. It administers the nation's 154 United States National Forest, national forests and 20 United States Natio ...

) * Redwood National Park (

National Park Service The National Park Service (NPS) is an List of federal agencies in the United States, agency of the Federal government of the United States, United States federal government, within the US Department of the Interior. The service manages all List ...

) * Redwood State Parks, Del Norte Coast, Jedediah Smith, and Prairie Creek ( California Department of Parks and Recreation) * Western Slopes of Cone Peak (

)

Protected habitats

The constituent components of the California Coast Ranges reserve contain a wide variety of

habitat In ecology, habitat refers to the array of resources, biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species' habitat can be seen as the physical manifestation of its ...

s. The combined Redwood National and State Parks protect 45% of the world's remaining coast redwood (Sequoia sempervirens)

old-growth forest An old-growth forest or primary forest is a forest that has developed over a long period of time without disturbance. Due to this, old-growth forests exhibit unique ecological features. The Food and Agriculture Organization of the United Natio ...

s. Angelo Reserve features mixed forests (including mixed evergreen, California bay, tanoak, madrone, upland

redwood Sequoioideae, commonly referred to as redwoods, is a subfamily of Pinophyta, coniferous trees within the family (biology), family Cupressaceae, that range in the Northern Hemisphere, northern hemisphere. It includes the List of superlative tree ...

, upland

Douglas-fir The Douglas fir (''Pseudotsuga menziesii'') is an evergreen conifer species in the pine family, Pinaceae. It is the tallest tree in the Pinaceae family. It is native to western North America and is also known as Douglas-fir, Douglas spruce, Or ...

, Pacific yew, and knobcone pine);

woodland A woodland () is, in the broad sense, land covered with woody plants (trees and shrubs), or in a narrow sense, synonymous with wood (or in the U.S., the '' plurale tantum'' woods), a low-density forest forming open habitats with plenty of sunli ...

s (including Oregon oak, black oak, interior live oak, and mixed north-slope cismontane); mixed

chaparral Chaparral ( ) is a shrubland plant plant community, community found primarily in California, southern Oregon, and northern Baja California. It is shaped by a Mediterranean climate (mild wet winters and hot dry summers) and infrequent, high-intens ...

(including chamise, montane manzanita, whitethorn, tobacco brush, buck brush, interior live oak, and north-slope chaparral); bald hills prairie;

grassland A grassland is an area where the vegetation is dominance (ecology), dominated by grasses (Poaceae). However, sedge (Cyperaceae) and rush (Juncaceae) can also be found along with variable proportions of legumes such as clover, and other Herbaceo ...

; freshwater seep; coastal winter steelhead trout stream; and coastal

salmon Salmon (; : salmon) are any of several list of commercially important fish species, commercially important species of euryhaline ray-finned fish from the genera ''Salmo'' and ''Oncorhynchus'' of the family (biology), family Salmonidae, native ...

stream. Habitats at Big Creek include coastal strand; coastal bluff scrub; coastal scrub; ceanothus shrub; sage scrub; rocky scrubland; chamise chaparral; coast range and streambank woodland; stream-mouth woodland; sycamore-draw woodland; coast live oak forest; mixed hardwood-coast live oak forest; mixed hardwood-canyon live oak forest; Ponderosa pine-Hoover's manzanita woodland; Ponderosa pine-mixed hardwood-coast live oak forest; Ponderosa pine-mixed hardwood-canyon live oak forest; Ponderosa pine-coast live oak forest; coulter pine forest; Santa Lucia-fir woodland; redwood streamside forest; redwood-mixed hardwood forest; pure redwood forest; and aquatic (both freshwater and marine) habitats.

Sources

References

{{coord, 38.7900, N, 122.9000, W, source:wikidata, display=title Former biosphere reserves of the United States Protected areas established in 1983 Protected areas of California