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Haliotis Rufescens
''Haliotis rufescens'' (red abalone) is a species of very large edible sea snail in the family Haliotidae, the abalones, ormer shells or paua.Rosenberg, G. (2014)''Haliotis rufescens'' Swainson, 1822.Accessed through: World Register of Marine Species on 2014-10-28 It is distributed from British Columbia, Canada, to Baja California, Mexico.Cowles, D. (2005). Haliotis rufescens.'' Biological Department, Walla Walla University. Retrieved 25 February 2015.NatureServe. 2015''Haliotis rufescens''.NatureServe Explorer. Version 7.1. February 11, 2016. It is most common in the southern half of its range. Red abalone is the largest and most common abalone found in the northern part of the state of California. Habitat Red abalone live in rocky areas with kelp. They feed on the kelp species that grow in their home range, including giant kelp (''Macrocystis pyrifera''), feather boa kelp (''Egregia menziesii''), and bull kelp (''Nereocystis luetkeana''). Juveniles eat coralline algae, bac ...
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William John Swainson
William John Swainson FLS, FRS (8 October 1789 – 6 December 1855), was an English ornithologist, malacologist, conchologist, entomologist and artist. Life Swainson was born in Dover Place, St Mary Newington, London, the eldest son of John Timothy Swainson the Second (1756–1824), an original fellow of the Linnean Society. He was cousin of the amateur botanist Isaac Swainson.Etymologisches Worterbuch der botanischen Pflanzennamen by H. Genaust. Review by Paul A. Fryxell ''Taxon'', Vol. 38(2), 245–246 (1989). His father's family originated in Lancashire, and both grandfather and father held high posts in Her Majesty's Customs, the father becoming Collector at Liverpool. William, whose formal education was curtailed because of an impediment in his speech, joined the Liverpool Customs as a junior clerk at the age of 14."William Swainson F.R.S, F.L.S., Naturalist and Artist: Diaries 1808–1838: Sicily, Malta, Greece, Italy and Brazil." G .M. Swainson, Palmerston, NZ ...
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Diatom
A diatom (Neo-Latin ''diatoma''), "a cutting through, a severance", from el, διάτομος, diátomos, "cut in half, divided equally" from el, διατέμνω, diatémno, "to cut in twain". is any member of a large group comprising several genera of algae, specifically microalgae, found in the oceans, waterways and soils of the world. Living diatoms make up a significant portion of the Earth's biomass: they generate about 20 to 50 percent of the oxygen produced on the planet each year, take in over 6.7 billion metric tons of silicon each year from the waters in which they live, and constitute nearly half of the organic material found in the oceans. The shells of dead diatoms can reach as much as a half-mile (800 m) deep on the ocean floor, and the entire Amazon basin is fertilized annually by 27 million tons of diatom shell dust transported by transatlantic winds from the African Sahara, much of it from the Bodélé Depression, which was once made up of a system of ...
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California Department Of Fish And Wildlife
The California Department of Fish and Wildlife (CDFW), formerly known as the California Department of Fish and Game (CDFG), is a state agency under the California Natural Resources Agency. The Department of Fish and Wildlife manages and protects the state's wildlife, wildflowers, trees, mushrooms, algae (kelp) and native habitats (ecosystems). The department is responsible for regulatory enforcement and management of related recreational, commercial, scientific, and educational uses. The department also prevents illegal poaching. History The Game Act was passed in 1852 by the California State Legislature and signed into law by Governor John Bigler. The Game Act closed seasons in 12 counties for quail, partridge, mallard and wood ducks, elk, deer, and antelope. A second legislative action enacted the same year protected salmon runs. In 1854, the Legislature extended the act to include all counties of California. In 1860, protection controls were extended for trout. Lake Merritt ...
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WLA Hmns Haliotis Rufescens
WLA may refer to: *Airwaves Airlink (ICAO: WLA), a Zambian airline *Harley-Davidson WLA The Harley-Davidson WLA is a Harley-Davidson motorcycle that was produced to US Army specifications in the years during and around World War II. It was based on an existing civilian model, the WL, and is of the 45 solo type, so called due to its ...
, a motorcycle produced during World War 2 *Washington Library Association *Weak-Link Approach, a molecular assembly methodology *West Los Angeles, Los Angeles, California, a region within the Westside of Los Angeles County, a much larger area often referred to by the same name *Western Lacrosse Association, a Senior A box lacrosse league in British Columbia, Canada *White Ladies Aston, a village and civil parish in Worcestershire, England *Winnebago Lutheran Academy, a Lutheran high school in Fond du Lac, Wisconsin *Wisconsin Library Association *Wyoming Library Association *Women's Land Army, the name for several groups of women recruited in ...
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Central California
Central California is generally thought of as the middle third of the state, north of Southern California, which includes Los Angeles, and south of Northern California, which includes San Francisco. It includes the northern portion of the San Joaquin Valley (which itself is the southern portion of the Central Valley, beginning at the Sacramento–San Joaquin River Delta), part of the Central Coast, the central hills of the California Coast Ranges and the foothills and mountain areas of the central Sierra Nevada. Central California is considered to be west of the crest of the Sierra Nevada. East of the Sierra is Eastern California. The largest cities in the region (over 50,000 population), from most to least populous, are Fresno, Bakersfield, Stockton, Modesto, Salinas, Visalia, Clovis, Santa Maria, Merced, Turlock, Madera, Lodi, Tulare, Porterville, Hanford and Delano. Over time, droughts and wildfires have increased in frequency and become less seasonal and more y ...
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Chumash People
The Chumash are a Native American people of the central and southern coastal regions of California, in portions of what is now San Luis Obispo, Santa Barbara, Ventura and Los Angeles counties, extending from Morro Bay in the north to Malibu in the south. Their territory included three of the Channel Islands: Santa Cruz, Santa Rosa, and San Miguel; the smaller island of Anacapa was likely inhabited seasonally due to the lack of a consistent water source. Modern place names with Chumash origins include Malibu, Nipomo, Lompoc, Ojai, Pismo Beach, Point Mugu, Port Hueneme, Piru, Lake Castaic, Saticoy, Simi Valley and Somis. Archaeological research demonstrates that the Chumash people have deep roots in the Santa Barbara Channel area and lived along the southern California coast for millennia. History Prior to European contact (pre-1542) Indigenous peoples have lived along the California coast for at least 11,000 years. Sites of the Millingstone Horizon date from 7000 ...
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Indigenous Peoples Of The Americas
The Indigenous peoples of the Americas are the inhabitants of the Americas before the arrival of the European settlers in the 15th century, and the ethnic groups who now identify themselves with those peoples. Many Indigenous peoples of the Americas were traditionally hunter-gatherers and many, especially in the Amazon basin, still are, but many groups practiced aquaculture and agriculture. While some societies depended heavily on agriculture, others practiced a mix of farming, hunting, and gathering. In some regions, the Indigenous peoples created monumental architecture, large-scale organized cities, city-states, chiefdoms, states, kingdoms, republics, confederacies, and empires. Some had varying degrees of knowledge of engineering, architecture, mathematics, astronomy, writing, physics, medicine, planting and irrigation, geology, mining, metallurgy, sculpture, and gold smithing. Many parts of the Americas are still populated by Indigenous peoples; some countries have ...
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Channel Islands Of California
The Channel Islands () are an eight-island archipelago located within the Southern California Bight in the Pacific Ocean, off the coast of California. The four Northern Channel Islands are part of the Transverse Ranges geologic province, and the four Southern Channel Islands are part of the Peninsular Ranges province. Five of the islands are within the Channel Islands National Park, and the waters surrounding these islands make up Channel Islands National Marine Sanctuary. The Nature Conservancy was instrumental in establishing the Channel Islands National Marine Sanctuary. The islands were inhabited as early as 13,000 years ago, the earliest paleontological evidence of humans in North America. They are the easternmost islands in the Pacific Island group. The Chumash and Tongva Native Americans who lived later on the islands may be the descendants of the original inhabitants, but they were then displaced by Spaniards who used the islands for fishing and agriculture. The U.S ...
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Withering Abalone Syndrome
Withering abalone syndrome is a disease of the abalone shellfish, primarily found in the black and red abalone species. First described in 1986, it is caused by the bacterium "''Candidatus'' Xenohaliotis californiensis", which attacks the lining of the abalone's digestive tract, inhibiting the production of digestive enzymes. To prevent starvation, the abalone consumes its own body mass, causing its characteristic muscular "foot" to wither and atrophy. This impairs the abalone's ability to adhere to rocks, making it far more vulnerable to predation. Withered abalone not eaten by predators typically starve. For reasons not yet well understood, some abalone can be infected with the bacterium without developing the disease. It is believed, however, that changes in environmental conditions, such as warmer than normal water temperatures, may induce the disease in abalone that already harbor the bacterium. For this reason, the spread of the bacterium could lead to further declines in abal ...
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Van Damme State Park
Van Damme State Park is a public beach consisting of about of land in Mendocino County, California, near the town of Little River on State Route 1. It was named for Charles F. Van Damme (1881–1934), who was born in the area and purchased the land that is now the park with profits from a San Francisco ferry business. On his death, the property became part of the California state park system. Description The greater part of the park lies on the inland side of State Route 1 and includes ten miles of hiking trails along the Little River and campsites rated by the ''Guardian'' as one of the ten best on the West Coast. On the ocean side of the highway, a free parking lot provides access to Little River Beach at the mouth of the Little River, also part of the park. The waters offshore from the beach form the Van Damme State Marine Conservation Area. The beach also serves as the launch site for kayak tours of the sea caves in the area. Another part of the park, Spring Ranch, consis ...
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Point Cabrillo Lighthouse
Point Cabrillo Light is a lighthouse in northern California, United States, between Point Arena and Cape Mendocino, just south of the community of Caspar. It has been a federal aid to navigation since 1909. It is part of the California state park system as Point Cabrillo Light Station State Historic Park. It should not be confused with the inactive Old Point Loma Lighthouse or the active New Point Loma Lighthouse in San Diego, both of which lie within the grounds of Cabrillo National Monument and are sometimes referred to as the Cabrillo lighthouse. Description The Point Cabrillo Lighthouse complex is located about north of Mendocino, California, and includes the lighthouse itself together with several outbuildings. Most of the original structures remain, but the barn is missing: in 1986 it was destroyed in a fire department exercise. The remaining lighthouse station is "one of the most complete light stations in the United States".. Atop the lighthouse spins a third-ord ...
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Dioecious
Dioecy (; ; adj. dioecious , ) is a characteristic of a species, meaning that it has distinct individual organisms (unisexual) that produce male or female gametes, either directly (in animals) or indirectly (in seed plants). Dioecious reproduction is biparental reproduction. Dioecy has costs, since only about half the population directly produces offspring. It is one method for excluding self-fertilization and promoting allogamy (outcrossing), and thus tends to reduce the expression of recessive deleterious mutations present in a population. Plants have several other methods of preventing self-fertilization including, for example, dichogamy, herkogamy, and self-incompatibility. Dioecy is a dimorphic sexual system, alongside gynodioecy and androdioecy. In zoology In zoology, dioecious species may be opposed to hermaphroditic species, meaning that an individual is either male or female, in which case the synonym gonochory is more often used. Most animal species are dioecious (gon ...
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