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Gulf Coast Waterdog
The western waterdog (''Necturus beyeri'') is a species of aquatic salamander in the family Proteidae. It is Endemism, endemic to the southeastern United States, where it occurs in Alabama, Louisiana, Mississippi, and Texas. Taxonomy This may be a species complex that could be split into different taxa as research indicates;NatureServe. 2015''Necturus beyeri''.NatureServe Explorer Version 7.1. Retrieved 25 June 2016. the Apalachicola waterdog, Apalachicola (''N. moleri'') and Escambia waterdog, Escambia (''N. mounti'') waterdogs were split from this species in 2020; previously, they were all grouped together as the Gulf Coast waterdog. It is closely related to ''Necturus alabamensis''.IUCN SSC Amphibian Specialist Group. 2014''Necturus beyeri''.The IUCN Red List of Threatened Species 2014. Retrieved 25 June 2016. Studies indicate that as currently defined, it comprises four lineages: the "Mobile" lineage (ranging from the Mobile River to the Biloxi River), the "Pearl" lineage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobile River
The Mobile River is located in southern Alabama in the United States. Formed out of the confluence of the Tombigbee and Alabama rivers, the approximately river drains an area of of Alabama, with a watershed extending into Mississippi, Georgia, and Tennessee. Its drainage basin is the fourth-largest of primary stream drainage basins entirely in the United States. The river has historically provided the principal navigational access for Alabama. Since construction of the Tennessee-Tombigbee Waterway, it also provides an alternative route into the Ohio River watershed. The Tombigbee and Alabama River join to form the Mobile River approximately northeast of Mobile, along the county line between Mobile and Baldwin counties. The combined stream flows south, in a winding course. Approximately downstream from the confluence, the channel of the river divides, with the Mobile flowing along the western channel. The Tensaw River, a bayou of the Mobile River, flows alongside to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Fauna Of The United States
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] |
Neoteny
Neoteny (), also called juvenilization,Montagu, A. (1989). Growing Young. Bergin & Garvey: CT. is the delaying or slowing of the physiological, or somatic, development of an organism, typically an animal. Neoteny is found in modern humans compared to other primates. In progenesis or paedogenesis, sexual development is accelerated. Both neoteny and progenesis result in paedomorphism (as having the form typical of children) or paedomorphosis (changing towards forms typical of children), a type of heterochrony. It is the retention in adults of traits previously seen only in the young. Such retention is important in evolutionary biology, domestication and evolutionary developmental biology. Some authors define paedomorphism as the retention of larval traits, as seen in salamanders.Schell, S. C. ''Handbook of Trematodes of North America North of Mexico'', 1985, pg. 22 History and etymology The origins of the concept of neoteny have been traced to the Bible (as argued by Ashley Monta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Jacinto River (Texas)
The San Jacinto River ( , ) flows through southeast Texas. It is named after Hyacinth of Caesarea, Saint Hyacinth. In the past, it was home to the Karankawa and Akokisa tribes. The river begins with a west and east fork; the west fork begins in Walker County, Texas, Walker County, to the west of Huntsville, Texas, Huntsville, and flows southeast through Montgomery County, Texas, Montgomery County, where it is dammed to create Lake Conroe. The east fork begins in San Jacinto County, Texas, San Jacinto County, a few miles west of Lake Livingston, then flows south through Cleveland, Texas, Cleveland. The confluence of the west and east forks occurs in northeast Harris County, Texas, Harris County, where the river is dammed to create Lake Houston. Continuing southward, the river merges with Buffalo Bayou before the mouth of Galveston Bay, forming part of the Houston Ship Channel. The Battle of San Jacinto was fought near the rain-swollen Buffalo Bayou in what is now Harris Count ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calcasieu River
The Calcasieu River ( ; french: Rivière Calcasieu) is a river on the Gulf Coast in southwestern Louisiana. Approximately long,U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed June 20, 2011 it drains a largely rural area of forests and bayou country, meandering southward to the Gulf of Mexico. The name "Calcasieu" comes (via French) from the Indian Atakapa language ''katkosh'', for "eagle", and ''yok'', "to cry". Course The Calcasieu rises in Vernon Parish, north of Leesville, and flows initially southeast, passing through the Kisatchie National Forest southwest of Alexandria. It then turns southwest, flowing past Oakdale and Lake Charles, the largest city on the river. It enters the north end of the brackish Calcasieu Lake, an estuary on the Gulf of Mexico approximately southwest of Lake Charles. The lake, which is referred to by locals as "Big Lake", is connected by a channel to the gulf on the south end. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blind River (Louisiana)
Blind River is a waterway in southeastern Louisiana originating in the Maurepas Swamp Wildlife Management Area of St. James Parish, Louisiana, St James Parish west of New Orleans and running northeasterly before turning east to flow into Lake Maurepas. The lower reaches of Blind River form the boundary between Livingston Parish, Louisiana, Livingston Parish on the north shore and St James and St. John the Baptist Parish, Louisiana, St. John the Baptist Parish on the south shore. {{authority control Rivers of Louisiana Tributaries of Lake Maurepas Bodies of water of St. James Parish, Louisiana Bodies of water of Livingston Parish, Louisiana Bodies of water of St. John the Baptist Parish, Louisiana ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bayou Bonfouca
In usage in the Southern United States, a bayou () is a body of water typically found in a flat, low-lying area. It may refer to an extremely slow-moving stream, river (often with a poorly defined shoreline), marshy lake, wetland, or creek. They typically contain brackish water highly conducive to fish life and plankton. Bayous are commonly found in the Gulf Coast region of the southern United States, especially in the Mississippi River Delta, though they also exist elsewhere. A bayou is often an anabranch or minor braid of a braided channel that is slower than the mainstem, often becoming boggy and stagnant. Though fauna varies by region, many bayous are home to crawfish, certain species of shrimp, other shellfish, catfish, frogs, toads, salamanders, newts, American alligators, American crocodiles, herons, lizards, turtles, tortoises, spoonbills, snakes, and leeches, as well as many other species. Etymology The word entered American English via Louisiana French in Louisiana and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pearl River (Mississippi–Louisiana)
The Pearl River is a river in the U.S. states of Mississippi and Louisiana. It forms in Neshoba County, Mississippi from the confluence of Nanih Waiya and Tallahaga creeks, and has a meander length of .U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed June 13, 2011 The lower part of the river forms part of the boundary between Mississippi and Louisiana. The river watershed contains large areas of bottomland hardwood swamp and cypress swamp, providing habitat for many species of wildlife, including sturgeon and black bears. As recently as 2008, endangered ivory-billed woodpeckers were reportedly sighted here. The mouth of the river creates important marsh habitat along salinity gradients, which has been the subject of many scientific studies. It is considered to be one of the most critical areas of natural habitat remaining in Louisiana. Mississippi's capital and largest city, Jackson, is located along the upper reaches of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wolf River (Tennessee)
The Wolf River is a alluvial river in western Tennessee and northern Mississippi, whose confluence with the Mississippi River was the site of various Chickasaw, French, Spanish and American communities that eventually became Memphis, Tennessee. It is estimated to be about 12,000 years old, formed by Midwestern glacier runoff carving into the region's soft alluvial soil. It should not be confused with The Wolf River (Middle Tennessee) which flows primarily in Middle Tennessee and southern Kentucky. The Wolf River rises in the Holly Springs National Forest at Baker's Pond in Benton County, Mississippi, and flows northwest into Tennessee, before entering the Mississippi River north of downtown Memphis. In 1985, the Wolf River Conservancy was formed in opposition to plans for additional channel dredging. In 1995 the "Ghost River" section of the Wolf was saved from timber auction by a coordinated effort of the Tennessee Wildlife Resources Agency, the Tennessee Department of Environ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biloxi River
The Biloxi River is a stream in the U.S. state of Mississippi. The Biloxi River is named for the Biloxi Indians The Biloxi tribe are Native Americans of the Siouan language family. They call themselves by the autonym ''Tanêks(a)'' in Siouan Biloxi language. When first encountered by Europeans in 1699, the Biloxi inhabited an area near the coast of the Gu ..., but the ultimate meaning of the word "Biloxi" is obscure. Variant names are "Oka Chambala River" and "Viloxy River". References Rivers of Mississippi Rivers of Harrison County, Mississippi Rivers of Stone County, Mississippi {{Mississippi-river-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Necturus Alabamensis
The Alabama waterdog (''Necturus alabamensis'') is a medium-sized perennibranch salamander inhabiting rivers and streams of Alabama. It is listed as endangered by the IUCN and the United States Fish and Wildlife Service. Description The Alabama waterdog is medium-sized at , with four toes and a laterally compressed tail. Its gills are permanent, bushy, and red. Typical adults exhibit a brown or black dorsum with minimal or no spotting, and the ventral side is white and often not spotted. Distribution and habitat The Alabama waterdog is found in the Appalachian headwaters of the Black Warrior River drainage basin in Alabama. Its range includes the Sipsey Fork and Brushy Creek in Winston County, the Mulberry Fork, Blackwater Creek, and Lost Creek in Walker County, the North River and Yellow Creek in Tuscaloosa County, and the Locust Fork and Blackburn Fork in Blount County. It is found in unsilted small and medium-sized streams in clay areas. It is more likely to be present when ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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