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Dixie Valley Toad
The Dixie Valley toad (''Anaxyrus williamsi'' or ''Bufo williamsi'') is a species of toad in the family Bufonidae. It is endemic to Churchill County in the state of Nevada in the United States. It was the first new toad species to be described from the United States since the description of the now-extinct in the wild Wyoming toad (''A. baxteri'') about 49 years prior. Taxonomy It was formerly considered an isolated population of the common western toad (''A. boreas'') until physical and genetic analyses found it to be a separate species, and described it as such in 2017. It is descended from an ancestor that inhabited the large lakes and wetlands that covered the Great Basin in the Pleistocene until the receding water isolated the different populations, leading to speciation. Distribution and habitat The Dixie Valley toad is found only in a small complex of vegetated spring-fed marshlands in Dixie Valley, one of the hottest and most geothermally active systems in the r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michelle R
Michelle may refer to: People * Michelle (name), a given name and surname, the feminine form of Michael * Michelle Courtens, Dutch singer, performing as "Michelle" * Michelle (German singer) * Michelle (Scottish singer) (born 1980), Scottish winner of ''Pop Idol'' in 2003 * Michel'le, American singer Arts, entertainment, and media Music * ''Michelle'' (album), a 1966 album by saxophonist Bud Shank * "Michelle" (song), a 1965 song by The Beatles * "Michelle", a song by Lynyrd Skynyrd * " My Michelle", a 1987 song by Guns N' Roses * " A World Without You (Michelle)", a 1988 song by Bad Boys Blue Film * Michelle (Marvel Cinematic Universe), a fictional character of the Marvel Cinematic Universe Television * "Michelle" (''Skins'' series 1), a 2007 episode of the British teen drama ''Skins'' Science * 1376 Michelle, an asteroid * Hurricane Michelle, powerful 2001 Atlantic tropical storm See also * Michael (other) * Michel (other) * Michele, a given name ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dixie Valley
The Dixie Valley is an endorheic basin which had plentiful ground water (free-flowing artesian wells) around which ranches were built. Prior to the US Navy TOPGUN school moving from California to Nevada, the valley was purchased in 1995 for $100 million and is used as an electronic warfare range for nearby Fallon Naval Air Station. The watershed has a floor of greater than elevation which has both the Lahontan Salt Shrub Basin and Lahontan Playa ecoregions of the Central Basin and Range. At higher elevations the area has Lahontan Sagebrush Slope (west) and Central Nevada High Valley (east) ecoregions that respectively transition to the mountainous Lahontan Upland and Central Nevada Mid-Slope Woodland & Brushland ecoregions (the latter's summits are Central Nevada Bald Mountain ecoregions). Dixie Valley is distinguished from all of the other valleys in West Central Nevada because it sits at approximately 3300 feet at its lowest point, while even the lowest of the rest of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Fauna Of Nevada
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anaxyrus
''Anaxyrus'' is a genus of true toads in the family Bufonidae. The genus is endemic to North and Central America. Some authors consider ''Anaxyrus'' to be a subgenus within ''Bufo ''Bufo'' is a genus of true toads in the amphibian family Bufonidae. As traditionally defined, it was a wastebasket genus containing a large number of toads from much of the world, but following taxonomic reviews most of these have been moved to ...''. Species References External links * * * Further reading * Tschudi JJ (1845). "''Reptilium conspectus quae in Republica Peruana reperiuntur et pleraque observata vel collecta sunt in itinere''". ''Archiv für Naturgeschichte'' 11 (1): 150–170. (''Anaxyrus'', new genus, p. 170). (in Latin) {{Taxonbar, from=Q2279985 Taxa named by Johann Jakob von Tschudi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ormat Technologies
Ormat Technologies, Inc. is an international company based in Reno, Nevada, United States. Ormat supplies alternative and renewable geothermal energy technology. The company has built over 190 power plants and installed over 3,200 MW. As of January 2021 it owns and operates 933 MW of geothermal and recovered energy based power plants. Ormat has supplied over 1000 turbochargers worldwide: North America, South America, Europe, Australia, and Asia. The company's products also include turbines, generators, and heat exchangers. The company's share is a dual stock traded on the Tel Aviv Stock Exchange since 1991 and on the New York Stock Exchange since 2004 under the symbol ORA, and is part of the Tel Aviv 35 Index and the Tel Aviv Tech-Elite Index The company's main production facilities are located in Yavne, Israel. History Ormat was established in 1965 as Ormat Turbines Ltd. (later renamed Ormat Industries), in Yavne, Israel, by engineer Lucien Bronicki, the company's chairm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Fish And Wildlife Service
The United States Fish and Wildlife Service (USFWS or FWS) is an agency within the United States Department of the Interior dedicated to the management of fish, wildlife, and natural habitats. The mission of the agency is "working with others to conserve, protect, and enhance fish, wildlife, plants and their habitats for the continuing benefit of the American people." Among the responsibilities of the USFWS are enforcing federal wildlife laws; protecting endangered species; managing migratory birds; restoring nationally significant fisheries; conserving and restoring wildlife habitats, such as wetlands; helping foreign governments in international conservation efforts; and distributing money to fish and wildlife agencies of U.S. states through the Wildlife Sport Fish and Restoration Program. The vast majority of fish and wildlife habitats are on U.S. state, state or private land not controlled by the United States government. Therefore, the USFWS works closely with private g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Environmental Policy Act
The National Environmental Policy Act (NEPA) is a United States environmental law that promotes the enhancement of the environment and established the President's Council on Environmental Quality (CEQ). The law was enacted on January 1, 1970.United States. National Environmental Policy Act of 1969. , Approved January 1, 1970. ''et seq.'' To date, more than 100 nations around the world have enacted national environmental policies modeled after NEPA. Prior to NEPA, Federal agencies were mission oriented. An example of mission orientation was to select highway routes as the shortest route between two points. NEPA was necessary to require Federal agencies to evaluate the environmental effects of their actions. NEPA's most significant outcome was the requirement that all executive Federal agencies prepare environmental assessments (EAs) and environmental impact statements (EISs). These reports state the potential environmental effects of proposed Federal agency actions. Further, U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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. Headquartered in Washington DC, and with oversight over , it governs one eighth of the country's landmass. President Harry S. Truman created the BLM in 1946 by combining two existing agencies: the General Land Office and the Grazing Service. The agency manages the federal government's nearly of subsurface mineral estate located beneath federal, state and private lands severed from their surface rights by the Homestead Act of 1862. Most BLM public lands are located in these 12 western states: Alaska, Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington and Wyoming. The mission of the BLM is "to sustain the health, diversity, and productivity of the public lands for the use and enjoyment of present and future generations." Originally BLM holdings were described as "land nobody wanted" because home ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geothermal Power
Geothermal power is electrical power generated from geothermal energy. Technologies in use include dry steam power stations, flash steam power stations and binary cycle power stations. Geothermal electricity generation is currently used in 26 countries,Geothermal Energy AssociationGeothermal Energy: International Market Update May 2010, p. 4-6. while geothermal heating is in use in 70 countries. As of 2019, worldwide geothermal power capacity amounts to 15.4 gigawatts (GW), of which 23.9 percent or 3.68 GW are installed in the United States. International markets grew at an average annual rate of 5 percent over the three years to 2015, and global geothermal power capacity is expected to reach 14.5–17.6 GW by 2020. Based on current geologic knowledge and technology the Geothermal Energy Association (GEA) publicly discloses, the GEA estimates that only 6.9 percent of total global potential has been tapped so far, while the IPCC reported geothermal power potential to be i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Binary Cycle
A binary cycle is a method for generating electrical power from geothermal resources and employs two separate fluid cycles, hence binary cycle. The primary cycle extracts the geothermal energy from the reservoir, and secondary cycle converts the heat into work to drive the generator and generate electricity. Binary cycles permit electricity generation even from low temperature geothermal resources (<180°C) that would otherwise produce insufficient quantities of steam to make flash power plants economically viable. However, due to the lower temperatures binary cycles have low overall efficiencies of about 10-13%. Introduction [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species Complex
In biology, a species complex is a group of closely related organisms that are so similar in appearance and other features that the boundaries between them are often unclear. The taxa in the complex may be able to hybridize readily with each other, further blurring any distinctions. Terms that are sometimes used synonymously but have more precise meanings are cryptic species for two or more species hidden under one species name, sibling species for two (or more) species that are each other's closest relative, and species flock for a group of closely related species that live in the same habitat. As informal taxonomic ranks, species group, species aggregate, macrospecies, and superspecies are also in use. Two or more taxa that were once considered conspecific (of the same species) may later be subdivided into infraspecific taxa (taxa within a species, such as bacterial strains or plant varieties), that is complex but it is not a species complex. A species complex is in most cas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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