Reithrodontomys Raviventris
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Reithrodontomys Raviventris
The salt marsh harvest mouse (''Reithrodontomys raviventris''), also known as the red-bellied harvest mouse, is an endangered rodent endemic to the San Francisco Bay Area salt marshes in California. The two distinct subspecies are both endangered and listed together on federal and state endangered-species lists. The northern subspecies (''R. r. halicoetes'') is lighter in color and inhabits the northern marshes of the bay, and the southern subspecies (''R. r. raviventris'') lives in the East and South Bay marshes. They are both quite similar in appearance to their congener species, the Western harvest mouse, ''R. megalotis'', to which they are not closely related. Genetic studies of the northern subspecies have revealed that the salt marsh harvest mouse is most closely related to the plains harvest mouse, ''R. montanus'', which occurs now in the Midwest. Its endangered designation is due to its limited range, historic decline in population and continuing threat of habitat l ...
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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 invasive species. The International Union for Conservation of Nature (IUCN) Red List lists the global conservation status of many species, and various other agencies assess the status of species within particular areas. Many nations have laws that protect conservation-reliant species which, for example, forbid hunting, restrict land development, or create protected areas. Some endangered species are the target of extensive conservation efforts such as captive breeding and habitat restoration. Human activity is a significant cause in causing some species to become endangered. Conservation status The conservation status of a species indicates the likelihood that it will become extinct. Multiple factors are considered when assessing the ...
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Plains Harvest Mouse
The plains harvest mouse (''Reithrodontomys montanus'') is a species of rodent in the family Cricetidae. It is found in northern Mexico and the central United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie .... Description The dorsal part of the Plains Harvest Mouse is grey with a darker grey mid-dorsal stipe, and the ventral part is whitish. Its tail has less and shorter hair, with the same color as the mid-dorsal stripe. The body length of the Plains Harvest Mouse is 54 mm to 146 mm total, and the tail is 20 mm to 69 mm. The body mass of a female Plains Harvest Mouse is 7.5 g to 13.5 g, slightly larger than the male at 6.5 g to 10.8 g. Its hair length is different by season, being 11 mm-12 mm in winter, and 6 mm-7 mm in summer. ...
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San Francisco Bay
San Francisco Bay is a large tidal estuary in the U.S. state of California, and gives its name to the San Francisco Bay Area. It is dominated by the big cities of San Francisco, San Jose, and Oakland. San Francisco Bay drains water from approximately 40 percent of California. Water from the Sacramento and San Joaquin rivers, and from the Sierra Nevada mountains, flow into Suisun Bay, which then travels through the Carquinez Strait to meet with the Napa River at the entrance to San Pablo Bay, which connects at its south end to San Francisco Bay. It then connects to the Pacific Ocean via the Golden Gate strait. However, this entire group of interconnected bays is often called the ''San Francisco Bay''. The bay was designated a Ramsar Wetland of International Importance on February 2, 2017. Size The bay covers somewhere between , depending on which sub-bays (such as San Pablo Bay), estuaries, wetlands, and so on are included in the measurement. The main part of the bay meas ...
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Oakland
Oakland is the largest city and the county seat of Alameda County, California, United States. A major West Coast port, Oakland is the largest city in the East Bay region of the San Francisco Bay Area, the third largest city overall in the Bay Area and the eighth most populated city in California. With a population of 440,646 in 2020, it serves as the Bay Area's trade center and economic engine: the Port of Oakland is the busiest port in Northern California, and the fifth busiest in the United States of America. An act to incorporate the city was passed on May 4, 1852, and incorporation was later approved on March 25, 1854. Oakland is a charter city. Oakland's territory covers what was once a mosaic of California coastal terrace prairie, oak woodland, and north coastal scrub. In the late 18th century, it became part of a large ''rancho'' grant in the colony of New Spain. Its land served as a resource when its hillside oak and redwood timber were logged to build San Francisc ...
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Arrowhead Marsh
Arrowhead Marsh is a wetlands habitat made of tidal mud flats in Martin Luther King, Jr. Shoreline in Oakland, California. It is an important stop on the Pacific flyway and is habitat for important endangered species especially the Salt Marsh Harvest Mouse. See also *Damon Marsh The Damon Marsh is a tidal wetland at the northern edge of San Leandro Bay in Oakland, California, USA. There is a paved long shoreline trail along the waterfront to allow visual access to the San Leandro Bay and through the marsh itself. One en ... References Landforms of Alameda County, California Wetlands of the San Francisco Bay Area Marshes of California {{AlamedaCountyCA-geo-stub ...
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San Rafael, California
San Rafael ( ; Spanish language, Spanish for "Raphael (archangel), St. Raphael", ) is a city and the county seat of Marin County, California, Marin County, California, United States. The city is located in the North Bay (San Francisco Bay Area), North Bay region of the San Francisco Bay Area. As of the 2020 United States census, 2020 U.S. census, the city's population was 61,271, up from 57,713 in 2010. San Rafael was founded by the Spanish in 1817, when Vicente Francisco de Sarría established Mission San Rafael Arcángel, initially as an Asistencias, ''asistencia'' (sub-mission). San Rafael Arcángel was upgraded to full Spanish missions in California, mission status in 1822, a month before Alta California declared independence from Spain as part of First Mexican Empire, Mexico. Following the American Conquest of California, the community of San Rafael incorporated as a city in 1874. History San Rafael was once the site of several Coast Miwok villages: ''Awani-wi'', near downt ...
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Sausalito
Sausalito (Spanish for "small willow grove") is a city in Marin County, California, United States, located southeast of Marin City, south-southeast of San Rafael, and about north of San Francisco from the Golden Gate Bridge. Sausalito's population was 7,269 as of the 2020 census. The community is situated near the northern end of the Golden Gate Bridge, and prior to the building of that bridge served as a terminus for rail, car, and ferry traffic. Sausalito developed rapidly as a shipbuilding center in World War II, with its industrial character giving way in postwar years to a reputation as a wealthy and artistic enclave, a picturesque residential community (incorporating large numbers of houseboats), and a tourist destination. The city is adjacent to, and largely bounded by, the protected spaces of the Golden Gate National Recreation Area as well as the San Francisco Bay. Etymology The name of Sausalito comes from the Spanish ''sauzalito'', meaning "small willow grove" ...
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Petaluma
Petaluma (Miwok: ''Péta Lúuma'') is a city in Sonoma County, California, located in the North Bay region of the San Francisco Bay Area. Its population was 59,776 according to the 2020 census. Petaluma's name comes from the Miwok village named ''Péta Lúuma'', that was located on the banks of the Petaluma River. The modern city originates in Rancho Petaluma, granted in 1834 to famed Californio statesman Mariano Guadalupe Vallejo, considered to be the founder of Petaluma. Today, Petaluma is known for its well-preserved historic center and as a local hub for the Petaluma Valley region of Sonoma County.Kay Ransom, C. Michael Hogan, Ballard George et al., ''Environmental Impact Report for the Petaluma General Plan'', prepared by Earth Metrics Inc. for the city of Petaluma (1984), History The Coast Miwok resided throughout Marin and southern Sonoma County. The village of (Coast Miwok for "backside of the hill", or "sloping ridge") was east of the Petaluma River, with a number ...
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Shollenberger Park
Shollenberger Park is a wetland park located in Petaluma, California.Petaluma Wetlands Alliance Together with the Alman Marsh, and Ellis Creek which opened to the public in July 2009, a total of are accessible to the public. The entirety is referred to as the "Petaluma Wetlands". Named after Richard Shollenberger, a park chief, the park is part of one of the last wetlands of its kind in the country. It is a bird watching paradise, attracting 231 species of birds, according to the last survey, including threatened species. The Audubon Society has ranked Shollenberger Park as an important birding site, and the San Francisco Chronicle ranks it as a top destination for nature-lovers. The park is home to rare animal and plant species, such as the endangered salt marsh harvest mouse. The park attracts 150,000 visitors annually and serves as an outdoor classroom for children as well as a wildlife research location. The Petaluma Wetlands Alliance, a 501(c)(3) environmental and educ ...
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Napa Sonoma Marsh
The Napa Sonoma Marsh is a wetland at the northern edge of San Pablo Bay, which is a northern arm of the San Francisco Bay in California, United States. This marsh has an area of 48,000 acres (194 km2), of which 13,000 acres (53 km2) are abandoned salt evaporation ponds. The United States Government has designated 13,000 acres (53 km2) in the Napa Sonoma Marsh as the San Pablo Bay National Wildlife Refuge. The marsh is fed by Sonoma Creek (which drains the Sonoma Valley), Tolay Creek (originating in the Tolay Lake basin), and the Napa River (which drains the Napa Valley). Although the marsh extends north as far as State Route 12, as a practical matter, most of the marsh is only accessible by boat. The marsh is a productive estuarine ecosystem providing habitat for a wide diversity of flora and fauna, including numerous rare and endangered species such as the California clapper rail and California freshwater shrimp. Because of its rich avafaunal content, the Napa ...
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Sonoma Creek
, name_etymology = , image = Beaver Dam Sonoma Creek, Sonoma Thanksgiving 2009.jpg , image_caption = Beaver dam on Sonoma Creek at Maxwell Farms Regional Park in Sonoma, California, 2009 , image_size = 300 , map = , map_size = , map_caption = , pushpin_map = USA California , pushpin_map_size = 300 , pushpin_map_caption= Location of the mouth of Sonoma Creek in California , subdivision_type1 = Country , subdivision_name1 = United States , subdivision_type2 = State , subdivision_name2 = California , subdivision_type3 = Region , subdivision_name3 = Sonoma and Napa counties , subdivision_type4 = , subdivision_name4 = , subdivision_type5 = Cities , subdivision_name5 = Kenwood, Glen Ellen, El Verano, Sonoma , length = , width_min = , width_avg = , width_max = , depth_min = , depth_avg = , depth_max ...
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Photo29SMALL
A photograph (also known as a photo, image, or picture) is an image created by light falling on a photosensitive surface, usually photographic film or an electronic image sensor, such as a CCD or a CMOS chip. Most photographs are now created using a smartphone/camera, which uses a lens to focus the scene's visible wavelengths of light into a reproduction of what the human eye would see. The process and practice of creating such images is called photography. Etymology The word ''photograph'' was coined in 1839 by Sir John Herschel and is based on the Greek φῶς (''phos''), meaning "light," and γραφή (''graphê''), meaning "drawing, writing," together meaning "drawing with light." History The first permanent photograph, a contact-exposed copy of an engraving, was made in 1822 using the bitumen-based "heliography" process developed by Nicéphore Niépce. The first photographs of a real-world scene, made using a camera obscura, followed a few years later at Le Gras, Fra ...
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