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Guadalupe Creek (Santa Clara County)
Guadalupe Creek is a northward-flowing stream originating just east of the peak of Mount Umunhum in Santa Clara County, California, United States. It courses along the northwestern border of Almaden Quicksilver County Park in the Cañada de los Capitancillos before joining Los Alamitos Creek after the latter exits Lake Almaden. This confluence forms the Guadalupe River mainstem, which in turn flows through San Jose and empties into south San Francisco Bay at Alviso Slough. History The "Valley of the Little Captains" or Rancho Cañada de los Capitancillos is named for the cañada, or valley, through which Guadalupe Creek courses. The river was once used for recreation prior to the removal of the Guadalupe Dam. Watershed and course The Guadalupe Creek subwatershed drains . Heading downstream east from the peak of Mount Umunhum, Guadalupe Creek is joined on the left by Rincon Creek, then on the right by Los Capitancillos Creek before reaching Guadalupe Reservoir. Guadalupe Dam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hicks Creek (Santa Clara County)
Hicks Creek, also known as Reynolds Creek, is a perennial northeast flowing stream in Santa Clara County, California, United States. It is tributary to Guadalupe Creek, which is in turn, tributary to the Guadalupe River and south San Francisco Bay at San Jose, California. History Hicks Creek is named for Thomas Pascoe Brown Hicks, a native of Cornwall, England, United Kingdom, born in 1825, who immigrated to California in 1854. He was naturalized in Tuolumne County in 1862 and settled in Santa Clara County later that year. Hicks owned various lands about the Guadalupe Mine and operated a store there until his death in 1901. He paid for the survey of Hicks Road, which until 1956 ran from Camden Avenue to Alamitos Road. Hicks Road runs along Guadalupe Creek, and Hicks Creek is the first significant tributary of Guadalupe Creek below Guadalupe Reservoir and Dam. This portion of the upper Guadalupe River watershed below the Dam was near the Guadalupe Mine, part of the New Alma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steelhead Trout
Steelhead, or occasionally steelhead trout, is the common name of the anadromous form of the coastal rainbow trout or redband trout (O. m. gairdneri). Steelhead are native to cold-water tributaries of the Pacific basin in Northeast Asia and North America. Like other sea-run (anadromous) trout and salmon, steelhead spawn in freshwater, smolts migrate to the ocean to forage for several years and adults return to their natal streams to spawn. Steelhead are iteroparous, although survival is approximately 10–20%. Description The freshwater form of the steelhead is the rainbow trout (''Oncorhynchus mykiss''). The difference between these forms of the species is that steelhead migrate to the ocean and return to freshwater tributaries to spawn, whereas non-anadromous rainbow trout do not leave freshwater. Steelhead are also larger and less colorful than rainbow trout, and can weigh up to and reach in length. They can live up to 11 years and spawn multiple times. The body of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California Office Of Environmental Health Hazard Assessment
The Office of Environmental Health Hazard Assessment, commonly referred to as OEHHA (pronounced oh-EEE-ha), is a specialized department within the cabinet-level California Environmental Protection Agency ( CalEPA) with responsibility for evaluating health risks from environmental chemical contaminants. OEHHA is the scientific adviser within CalEPA and provides the health effects assessments that assist regulatory decision makers within CalEPA, the California Department of Public Health, and other agencies and non-governmental organizations (see below). This includes assessing health and environmental risks from: * Carcinogens * Reproductive toxins * Air pollutants * Pesticides * Chemical contaminants in food and water * Chemical exposures in the workplace * Climate change in California In the news Attempted closure In May 2009, Governor Arnold Schwarzenegger proposed to "eliminate and transfer the functions" of OEHHA (and other agencies) as part his May Revise for the 2009– ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calcination
Calcination refers to thermal treatment of a solid chemical compound (e.g. mixed carbonate ores) whereby the compound is raised to high temperature without melting under restricted supply of ambient oxygen (i.e. gaseous O2 fraction of air), generally for the purpose of removing impurities or volatile substances and/or to incur thermal decomposition. The root of the word calcination refers to its most prominent use, which is to remove carbon from limestone (calcium carbonate) through combustion to yield calcium oxide (quicklime). This calcination reaction is CaCO3(s) → CaO(s) + CO2(g). Calcium oxide is a crucial ingredient in modern cement, and is also used as a chemical flux in smelting. Industrial calcination generally emits carbon dioxide (), making it a major contributor to climate change. A calciner is a steel cylinder that rotates inside a heated furnace and performs indirect high-temperature processing (550–1150 °C, or 1000–2100 °F) within a controlled ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Streptanthus Callistus
''Streptanthus callistus'' is a rare species of flowering plant in the mustard family known by the common name Mount Hamilton jewelflower. It is endemic to Santa Clara County, California, where it is known from only about five occurrences around Mount Hamilton. It grows in chaparral and woodlands and on dry scree. It is an annual herb producing a small stem up to 8 or 9 centimeters tall with a bristly base. The toothed oval leaves are under 2 centimeters long. The inflorescence is a cluster-like raceme of flowers, the top ones sterile. The fertile flowers on the lower raceme have calyces of bristly purple-green sepals under a centimeter long with flaring purple petals at the tip. The sterile flowers at the top of the raceme have narrow, elongated, hairless purple sepals. The fruit is a cylindrical, bristle-studded silique A silique or siliqua (plural ''siliques'' or ''siliquae'') is a type of fruit (seed capsule) having two fused carpels with the length being more than three ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fritillaria Liliacea
''Fritillaria liliacea'', the fragrant fritillary, is a threatened bulbous herbaceous perennial plant in the lily family Liliaceae. It is native to the region surrounding San Francisco Bay in California, USA. Description The bell-shaped white flowers have greenish stripes and are set on a nodding pedicel of about 37 centimeters in height. The blooms are odorless to faintly fragrant. ''Fritillia liliacea'' prefers heavy soils including clays; for example, andesitic and basaltic soils derived from the Sonoma Volcanic soil layers are suitable substrate for this species. Distribution The range of this wildflower is over parts of southwestern Northern California, United States, especially Solano and Sonoma counties and at coastal locations south to Monterey County; occurrence is typically in open hilly grasslands at altitudes less than 200 meters in elevation. This California endemic has been a candidate for listing as a U.S. federally endangered species, and some of the remain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clarkia Concinna
''Clarkia concinna'' is a species of wildflower known as red ribbons. It is endemic to California, where it can be found in the low-elevation mountains of the northern part of the state. This is an annual plant with erect, herbaceous stems. The distinctive flowers have four looping sepal A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coine ...s of red or dark pink which look like loops of silk ribbon. The longer, pink petals have three lobes which are usually streaked with white. Subspecies: *''C. c. automixa'' - Santa Clara red ribbons *''C. c. concinna'' - red ribbons *''C. c. raichei'' - Raiche's red ribbons References External linksJepson Manual Profile [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Santa Clara Valley Dudleya
''Dudleya abramsii'' subsp. ''setchellii'', known by common name as the Santa Clara Valley dudleya or Santa Clara Valley liveforever, is a member of the ''Dudleya'' genus of succulent perennials, members of the family Crassulaceae. The Santa Clara Valley dudleya, endemic to the Santa Clara Valley region in the southern San Francisco Bay Area, was listed on 3 February 1995, as an endangered species. It is considered to be a subspecies of ''Dudleya abramsii,'' but its taxonomic status is still unclear. Its closest relative is ''Dudleya cymosa'' subsp. ''paniculata'', which is a morphologically similar sister taxon.'''' Description A perennial rosette-forming succulent, this species is characterized by pale yellow petals, a simple (not branching multiple times) inflorescence, and a restriction to serpentine soil. Morphology This rosettes are anywhere from wide, on top of stems (also referred to as caudices) that are wide. The stems may branch dichotomously to form 1 to 5 ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cirsium Fontinale
''Cirsium fontinale'', the fountain thistle, is a flowering perennial herb in the family Asteraceae. It is endemic to California. The genus ''Cirsium'' is commonly known as the "thistle" genus, ''Cirsium'' being the Greek word for 'thistle.' Distribution The species is endemic to limited regions within northern and central California, at elevations not exceeding . Occurrences appear limited to serpentine seeps and streams within the California Coast Ranges, in areas of the San Francisco Bay Area and of San Luis Obispo County. There are three recognized varieties of this species: *''Cirsium fontinale var. campylon'' — Mount Hamilton thistle; Diablo Range and southern Santa Clara Valley, San Francisco Bay Area. (Federal candidate for listing) *''Cirsium fontinale var. fontinale'' — Fountain thistle; San Mateo County. (Federal and State of California Endangered species) *''Cirsium fontinale var. obispoense'' — Chorro Creek bog thistle; San Luis Obispo County. (Federal and S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foothill Yellow-legged Frog
The foothill yellow-legged frog (''Rana boylii'') is a small-sized frog from the genus ''Rana'' in the family Ranidae. This species can be found in the Coast Ranges from northern Oregon, through California, and into Baja California, Mexico as well as in the foothills of the Sierra Nevada and southern Cascade Range in California. The foothill yellow-legged frog is a Federal Species of Concern and California State Endangered. Appearance The foothill yellow-legged frog has a grey, brown, or reddish dorsum, or the back of the frog. It is commonly spotted or mottled, but occasionally is plainly colored. Adults have yellow coloration under their legs, which may extend to their abdomens, but this characteristic is faint or absent in young frogs. A triangular, buff-colored patch occurs on the snout, and, unlike other frogs in the genus, there is no eye stripe. The throat and chest are often boldly mottled; and the species has indistinct dorsolateral skin folds and granular ski ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Pond Turtle
The Western pond turtle (''Actinemys marmorata''), also known commonly as the Pacific pond turtle is a species of small to medium-sized turtle in the family Emydidae. The species is endemic to the western coast of the United States and Mexico, ranging from western Washington state to northern Baja California. It was formerly found in Canada (in British Columbia), but in May 2002, the Canadian Species at Risk Act listed the Pacific pond turtle as being extirpated. Taxonomy and systematics Its genus classification is mixed. ''Emys'' and ''Actinemys'' were used among published sources in 2010. It was known by several names in the Indigenous languages of its range, including kʰá:wanaka: (Northeastern Pomo), kʰa:wana (Southern Pomo), and ʔaləšək (Lushootseed). Description The dorsal color of ''A. marmorata'' is usually dark brown or dull olive, with or without darker reticulations or streaking. The plastron is yellowish, sometimes with dark blotches in the centers of the scut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chinook Salmon
The Chinook salmon (''Oncorhynchus tshawytscha'') is the largest and most valuable species of Pacific salmon in North America, as well as the largest in the genus ''Oncorhynchus''. Its common name is derived from the Chinookan peoples. Other vernacular names for the species include king salmon, Quinnat salmon, Tsumen, spring salmon, chrome hog, Blackmouth, and Tyee salmon. The scientific species name is based on the Russian common name ''chavycha'' (чавыча). Chinook are anadromous fish native to the North Pacific Ocean and the river systems of western North America, ranging from California to Alaska, as well as Asian rivers ranging from northern Japan to the Palyavaam River in the Arctic northeast Siberia. They have been introduced to other parts of the world, including New Zealand, thriving in Lake Michigan Great Lakes of North America and Michigan's western rivers, and Patagonia. A large Chinook is a prized and sought-after catch for a sporting angler. The flesh of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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