|
Cuatro Ciénegas
Cuatro Ciénegas () is a city in the northern Mexican state of Coahuila. It stands at , at an average elevation of above sea level. The city serves as the municipal seat for the surrounding municipality of the same name. It is located in the state's desert region ''(Región Desierto)''. Cuatro Ciénegas is Spanish for "four marshes"; the name was chosen by the first settlers because of the natural springs in the vicinity that create extensive areas of wetland and lakes. Archeological excavations indicate settlement in the area from approximately 5000 years ago, as well as ritual use of peyote by the inhabitants. Several failed settlements were founded here prior to the successful establishment of a town by Antonio Cordero y Bustamante on 24 May 1800. The settlement's original name was Nuestra Señora de los Dolores y Cuatro Ciénegas, which was later changed to Villa Venustiano Carranza, before finally settling on its current name. The city is formally known as Cuatro Cià ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Settlement Classification In Mexico
Mexico's states classify their settlements in a variety of fashions: Aguascalientes Under Article 106 of the Municipal Law of the State of Aguascalientethe state defines its settlements as follows: *''Ciudad'' (city): Census population in excess of 15,000 inhabitants. *''Villa'' (town): Census population of over 1,000. *''Poblado'' (village): Census population of between 500 and 1,000. *''RancherÃa'' (hamlet): All other settlements. Baja California Baja California Sur According to Article 10 of the Organic Municipal Law of the State of Baja California Suthe state classifies its settlements as follows: *''Ciudad'' (city): A settlement with more than 12,000 inhabitants, or a municipal seat irrespective of population. *''Villa'' (town): More than 5,000 inhabitants. *''Pueblo'' (village): More than 2,000 inhabitants. *''Congregación'' (congregation): More than 200 inhabitants. *''RancherÃa'' (hamlet): Fewer than 200 inhabitants. Campeche According to Article 12 of the Or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endorheic Basin
An endorheic basin (; also spelled endoreic basin or endorreic basin) is a drainage basin that normally retains water and allows no outflow to other external bodies of water, such as rivers or oceans, but drainage converges instead into lakes or swamps, permanent or seasonal, that equilibrate through evaporation. They are also called closed or terminal basins, internal drainage systems, or simply basins. Endorheic regions contrast with exorheic regions. Endorheic water bodies include some of the largest lakes in the world, such as the Caspian Sea, the world's largest inland body of water. Basins with subsurface outflows which eventually lead to the ocean are generally not considered endorheic; they are cryptorheic. Endorheic basins constitute local base levels, defining a limit of erosion and deposition processes of nearby areas. Etymology The term was borrowed from French ''endor(rh)éisme'', coined from the combining form ''endo-'' (from grc, ἔνδον ''éndon'' 'wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tufa Darter
The Tufa darter (''Etheostoma lugoi'' ) is a species of freshwater ray-finned fish, a darter from the subfamily Etheostomatinae, part of the family Percidae, which also contains the perches, ruffes and pikeperches. It is endemic to Rio Mesquites and its tributaries in Bolson de Cuatro Cienegas, Mexico. It inhabits unvegetated river bottoms made of gravel to cobble-sized fragments of tufa and tufa stromatolite Stromatolites () or stromatoliths () are layered sedimentary formations (microbialite) that are created mainly by photosynthetic microorganisms such as cyanobacteria, sulfate-reducing bacteria, and Pseudomonadota (formerly proteobacteria). The ...s. This species can reach a length of . The specific name, ''lugoi'', is in honor of José "Pepe" Lugo Guajardo for his contributions to the studies of the Cuatro Ciénegas Basin fauna.Norris SM, Minckley WL (1997). "Two new species of ''Etheostoma'' (Osteichthyes: Percidae) from Central Coahuila, Northern Mexico". ''Ichth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cuatro Cienegas Shiner
The Cuatro Cienegas shiner (''Cyprinella xanthicara'') is a species of freshwater fish in the family Cyprinidae. Distribution The small fish is endemic to the springs and marshes of the Cuatro Ciénegas and Cuatrociénegas Municipality area of Coahuila state in northeastern Mexico. It is an 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 .... References * *Jelks, H.L., S.J. Walsh, N.M. Burkhead, S. Contreras-Balderas, E. DÃaz-Pardo, D.A. Hendrickson, J. Lyons, N.E. Mandrak, F. McCormick, J.S. Nelson, S.P. Platania, B.A. Porter, C.B. Renaud, J.J. Schmitter-Soto, E.B. Taylor and M.L. Warren Jr., 2008. Conservation status of imperiled North American freshwater and diadromous fishes. Fisheries 33(8):372-407. Cyprinella Shiner, Cuatro Cienegas Shiner, Cuatro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minckley's Cichlid
The Minckley's cichlid (''Herichthys minckleyi'') is a species of fish in the family Cichlidae. It is endemic to Cuatro Ciénegas in Coahuila, Mexico. The specific name honours the ichthyologist Wendell L. Minckley (1935-2001) of Arizona State University who studied the ecology of Cuatro Ciénegas. References Minckley's cichlid The Minckley's cichlid (''Herichthys minckleyi'') is a species of fish in the family Cichlidae. It is endemic to Cuatro Ciénegas in Coahuila, Mexico. The specific name honours the ichthyologist Wendell L. Minckley (1935-2001) of Arizona State U ... Endemic fish of Mexico Freshwater fish of Mexico Cuatrociénegas Municipality Natural history of Coahuila Cichlid fish of North America Endangered fish Endangered biota of Mexico Fish described in 1983 Taxonomy articles created by Polbot {{Cichlidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IUCN
The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natural resources. It is involved in data gathering and analysis, research, field projects, advocacy, and education. IUCN's mission is to "influence, encourage and assist societies throughout the world to conserve nature and to ensure that any use of natural resources is equitable and ecologically sustainable". Over the past decades, IUCN has widened its focus beyond conservation ecology and now incorporates issues related to sustainable development in its projects. IUCN does not itself aim to mobilize the public in support of nature conservation. It tries to influence the actions of governments, business and other stakeholders by providing information and advice and through building partnerships. The organization is best known to the wider ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cuatro Cienegas Softshell
The Cuatro Ciénegas softshell (''Apalone spinifera atra''), also called the black spiny softshell, is a subspecies of the spiny softshell turtle in the family Trionychidae. The subspecies, along with its parent species, was formerly classified in the genus ''Trionyx''. Geographic range ''A. s. atra'' is found only in the Cuatro Ciénegas Basin in the state of Coahuila, Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema .... Conservation status As of the last assessment in 1996, ''A. s. atra'' was considered "Critically Endangered" by the "IUCN Red List of Threatened Species". References Bibliography * * * Webb RG, Legler JM (1960). "A New Softshell Turtle (Genus ''Trionyx'') from Coahuila, Mexico". ''Univ. Kansas Sci. Bull.'' 40 (2): 21–30. (''Trionyx ater'', new sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cuatro Ciénegas Slider
The Cuatro Ciénegas slider (''Trachemys taylori'') is a species of turtle belonging to the genus ''Trachemys'' of the family Emydidae. Etymology The specific name, ''taylori'', is in honor of American herpetologist Edward Harrison Taylor.Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). ''The Eponym Dictionary of Reptiles''. Baltimore: Johns Hopkins University Press. xiii + 296 pp. . (''Trachemys taylori'', p. 261). Geographic range ''T. taylori'' is endemic to the Cuatro Ciénegas Basin in the Coahuila state in northeastern Mexico.. Habitat The preferred natural habitat of ''T. taylori'' is freshwater wetlands. Conservation status ''T. taylori'' is an 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 .... References Bibliography * * Further readin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coahuilan Box Turtle
The Coahuilan box turtle (''Terrapene coahuila''), also known commonly as the aquatic box turtle, is an endangered species of turtle in the family Emydidae. Unlike the other members of the genus ''Terrapene'', this turtle spends roughly 90% of its time in water. It is a close relative to the common box turtle (''T. carolina''). Researchers have therefore suggested that it developed from a nonaquatic species in order to survive in the desert springs of Cuatro Ciénegas. Geographic range ''T. coahuila'' is endemic to the vicinity of Cuatro Ciénegas in Coahuila, Mexico. Within an area of less than 800 km2 (300 sq mi), there are several distinct pockets of this species. During the rainy season, Coahuilan box turtles may leave their home range and travel throughout the desert. Description The body of ''T. coahuila'' is adapted for spending long periods of time in the water, and the shell is often covered in algae. Just like any other box turtle, it has a hinged plastron that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fouquieria Shrevei
''Fouquieria shrevei'' is a plant species native to the States of Coahuila and Durango states of northeastern Mexico. It is simply referred to as an ocotillo. It is endemic to some scattered gypsum outcroppings in the Bolsón de MapimÃ, where the low rainfall, hot climate and gypseous soil work to create a restrictive environment. It has flowers with short, white corollas that distinguish it from the nearby ''Fouquieria splendens''. Description ''Fouquieria shrevei'' is a shrub up to tall, branching repeatedly near the base but hardly at all above. Leaves are ovate to oblanceolate, up to long and wide, with scarious (thin, dry and brown) margins. Flowers are white, born in short racemes in the axils of the leaves. The board leaves plus the axillary racemes of white flowers make this a distinctive and unusual member of the genus. Etymology Because this species occurs sympatric with ''Fouquieria splendens'', the plant is not distinguished and is simply referred to as an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Endemism")
