The San Joaquin River National Wildlife Refuge is a protected area of along the

San Joaquin River The San Joaquin River (; es, Río San Joaquín) is the longest river of Central California. The long river starts in the high Sierra Nevada, and flows through the rich agricultural region of the northern San Joaquin Valley before reaching Suis ...

in the northern

San Joaquin Valley The San Joaquin Valley ( ; es, Valle de San Joaquín) is the area of the Central Valley of the U.S. state of California that lies south of the Sacramento–San Joaquin River Delta and is drained by the San Joaquin River. It comprises seven ...

California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...

. It is within

San Joaquin County San Joaquin County (; Spanish: ''San Joaquín'', meaning " St. Joachim"), officially the County of San Joaquin, is a county in the U.S. state of California. As of the 2020 census, the population was 779,233. The county seat is Stockton. San J ...

and

Stanislaus County , image_skyline = , image_caption = Images, from top down, left to right: Modesto Arch, Knights Ferry's General Store, a view of the Tuolumne River from Waterford , image_flag = , ...

. It protects more than of riparian woodlands,

wetland A wetland is a distinct ecosystem that is flooded or saturated by water, either permanently (for years or decades) or seasonally (for weeks or months). Flooding results in oxygen-free (Anoxic waters, anoxic) processes prevailing, especially in t ...

s, and

grassland A grassland is an area where the vegetation is dominated by grasses ( Poaceae). However, sedge ( Cyperaceae) and rush ( Juncaceae) can also be found along with variable proportions of legumes, like clover, and other herbs. Grasslands occur na ...

s and hosts a diversity of native wildlife. Established in 1987 under the authority of the

Endangered Species An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and inv ...

and

Migratory Bird Conservation Act The Migratory Bird Conservation Act of 1929 ({{usstat, 45, 1222) of February 18, 1929, (also known as the "Norbeck-Andresen Act") created the United States Migratory Bird Conservation Commission (MBCC) to consider and approve any areas of land and/ ...

s, the refuge has also played a major role in the recovery of

Aleutian cackling geese The Aleutian cackling goose (''Branta hutchinsii leucopareia''), is a small subspecies of the cackling goose The cackling goose (''Branta hutchinsii'') is a species of goose found in North America. Description The black head and neck with whi ...

Riparian forest

Within the borders of the San Joaquin National Wildlife Refuge is one of California's largest riparian

forest restoration Forest restoration is defined as “actions to re-instate ecological processes, which accelerate recovery of forest structure, ecological functioning and biodiversity levels towards those typical of climax forest” i.e. the end-stage of natural ...

projects. 400,000 native trees have been planted across of the river's

floodplain A floodplain or flood plain or bottomlands is an area of land adjacent to a river which stretches from the banks of its channel to the base of the enclosing valley walls, and which experiences flooding during periods of high discharge.Goudi ...

. The major project was led by River Partners, Inc., a non-profit organization committed to restoring

riparian zone A riparian zone or riparian area is the interface between land and a river or stream. Riparian is also the proper nomenclature for one of the terrestrial biomes of the Earth. Plant habitats and communities along the river margins and banks a ...

habitat for wildlife. Riparian forests, which once covered large portions of California's Central Valley, have been greatly reduced due to state and federal water projects and diversions. The riparian habitat is host to many rare animals.

Swainson's hawk Swainson's hawk (''Buteo swainsoni'') is a large bird species in the Accipitriformes order. This species was named after William Swainson, a British naturalist. It is colloquially known as the grasshopper hawk or locust hawk, as it is very fond ...

s nest in the canopy of tall cottonwood trees.

Heron The herons are long-legged, long-necked, freshwater and coastal birds in the family Ardeidae, with 72 recognised species, some of which are referred to as egrets or bitterns rather than herons. Members of the genera ''Botaurus'' and ''Ixobrychu ...

s and

cormorant Phalacrocoracidae is a family of approximately 40 species of aquatic birds commonly known as cormorants and shags. Several different classifications of the family have been proposed, but in 2021 the IOC adopted a consensus taxonomy of seven ge ...

s form communal nesting colonies within the tops of the large oaks on Christman Island. Endangered riparian

brush rabbit The brush rabbit (''Sylvilagus bachmani''), or western brush rabbit, or Californian brush rabbit, is a species of cottontail rabbit found in western coastal regions of North America, from the Columbia River in Oregon to the southern tip of the ...

s have been reintroduced to their historic habitat from captive-reared populations.

References

External links

Official San Joaquin River National Wildlife Refuge websiteRefuge profile
{{authority control National Wildlife Refuges in California Parks in the San Joaquin Valley Forests of California San Joaquin River Wetlands of California Protected areas of San Joaquin County, California Protected areas of Stanislaus County, California Natural history of the Central Valley (California) Natural history of San Joaquin County, California Geography of San Joaquin County, California Geography of Stanislaus County, California Protected areas established in 1987 1987 establishments in California