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Mexipyrgus Carranzae
''Mexipyrgus carranzae'' is a species of very small freshwater snail,Chaves-Campos J., Johnson S. G. & Hulsey C. D. (2011). "Spatial Geographic Mosaic in an Aquatic Predator-Prey Network". '' PLoS ONE'' 6(7): e22472. . an aquatic gastropod mollusk in the family Cochliopidae.Bouchet, P. (2014). Mexipyrgus carranzae D. W. Taylor, 1966. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=723426 on 2014-11-16 Distribution This species is endemic to Cuatro Ciénegas valley, in Chihuahuan Desert, Mexico. Ecology ''Mexipyrgus carranzae'' is generally found only in soft sediment. Water lily '' Nymphaea ampla'' is the most common aquatic macrophyte in abundance in its habitats. According to the isotope analysis Isotope analysis is the identification of isotopic signature, abundance of certain stable isotopes of chemical elements within organic and inorganic compounds. Isotopic analysis can be used to understand t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gastropod Shell
The gastropod shell is part of the body of a Gastropoda, gastropod or snail, a kind of mollusc. The shell is an exoskeleton, which protects from predators, mechanical damage, and dehydration, but also serves for muscle attachment and calcium storage. Some gastropods appear shell-less (slugs) but may have a remnant within the mantle, or in some cases the shell is reduced such that the body cannot be retracted within it (semi-slug). Some snails also possess an operculum that seals the opening of the shell, known as the Aperture (mollusc), aperture, which provides further protection. The study of mollusc shells is known as conchology. The biological study of gastropods, and other molluscs in general, is malacology. Shell morphology terms vary by species group. Shell layers The gastropod shell has three major layers secreted by the Mantle (mollusc), mantle. The calcareous central layer, tracum, is typically made of calcium carbonate precipitated into an organic matrix known as c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquatic Animal
An aquatic animal is any animal, whether invertebrate or vertebrate, that lives in water for most or all of its lifetime. Many insects such as mosquitoes, mayflies, dragonflies and caddisflies have aquatic larvae, with winged adults. Aquatic animals may breathe air or extract oxygen from water through specialised organs called gills, or directly through the skin. Natural environments and the animals that live in them can be categorized as aquatic (water) or terrestrial (land). This designation is polyphyletic. Description The term aquatic can be applied to animals that live in either fresh water or salt water. However, the adjective marine is most commonly used for animals that live in saltwater, i.e. in oceans, seas, etc. Aquatic animals (especially freshwater animals) are often of special concern to conservationists because of the fragility of their environments. Aquatic animals are subject to pressure from overfishing, destructive fishing, marine pollution, hunting, and cli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Molluscs Of Mexico
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 sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BMC Evolutionary Biology
''BMC Ecology and Evolution'' (since January 2021), previously ''BMC Evolutionary Biology'' (2001–2020), is a peer-reviewed open access scientific journal covering all fields of evolutionary biology, including phylogenetics and palaeontology. It was established in 2001 and is part of a series of BMC journals published by BioMed Central. Abstracting and indexing The journal is abstracted and indexed in: According to the ''Journal Citation Reports'', the journal has a 2020 impact factor The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly mean number of citations of articles published in the last two years in a given journal, as i ... of 3.260. References External links * BioMed Central academic journals Creative Commons Attribution-licensed journals {{biology-journal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molecular Ecology
Molecular ecology is a field of evolutionary biology that is concerned with applying molecular population genetics, molecular phylogenetics, and more recently genomics to traditional ecological questions (e.g., species diagnosis, conservation and assessment of biodiversity, species-area relationships, and many questions in behavioral ecology). It is virtually synonymous with the field of "Ecological Genetics" as pioneered by Theodosius Dobzhansky, E. B. Ford, Godfrey M. Hewitt, and others. These fields are united in their attempt to study genetic-based questions "out in the field" as opposed to the laboratory. Molecular ecology is related to the field of conservation genetics. Methods frequently include using microsatellites to determine gene flow and hybridization between populations. The development of molecular ecology is also closely related to the use of DNA microarrays, which allows for the simultaneous analysis of the expression of thousands of different genes. Quanti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herichthys Minckleyi
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 ... 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] |
Isotope Analysis
Isotope analysis is the identification of isotopic signature, abundance of certain stable isotopes of chemical elements within organic and inorganic compounds. Isotopic analysis can be used to understand the flow of energy through a food web, to reconstruct past environmental and climatic conditions, to investigate human and animal diets, for food authentification, and a variety of other physical, geological, palaeontological and chemical processes. Stable isotope ratios are measured using mass spectrometry, which separates the different isotopes of an element on the basis of their mass-to-charge ratio. Tissues affected Isotopic oxygen is incorporated into the body primarily through ingestion at which point it is used in the formation of, for archaeological purposes, bones and teeth. The oxygen is incorporated into the hydroxylcarbonic apatite of bone and tooth enamel. Bone is continually remodelled throughout the lifetime of an individual. Although the rate of tur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nymphaea Ampla
''Nymphaea ampla'', the dotleaf waterlily, is a species of flowering plant in the family Nymphaeaceae. It is native to Texas, Florida, Mexico, Central America, the Caribbean, and northern and western South America. ''Nymphaea ampla'' is widely represented in Mayan art, especially in its depictions with jaguars and Mayan kings. Its cultural importance can be seen in one of the Mayan names of the plant; ''nikte’ha’'' ("vulva of the water") as it would have represented life, sexual activity, fertility, and birth. The plant causes opiate An opiate, in classical pharmacology, is a substance derived from opium. In more modern usage, the term ''opioid'' is used to designate all substances, both natural and synthetic, that bind to opioid receptors in the brain (including antagonis ...-like effects on the user and is known to have been used as a calmative and mild trance inducer.Emboden, W.A. (1979) "''Nymphaea ampla'' and Other Mayan Narcotic Plants." ''Mexicon'' 1:50–52. Re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Non-marine Molluscs Of Mexico
The non-marine molluscs of Mexico are a part of the molluscan wildlife of Mexico. A number of species of non-marine molluscs are found in the wild in Mexico. There are about 1,178 species and subspecies of terrestrial gastropods in the Mexico.Naranjo-García E. & Fahy N. E. (2010). "The Lesser Families of Mexican Terrestrial Molluscs". '' American Malacological Bulletin'' 28(1-2): 59-80. . There are not enough records of terrestrial gastropods from states of Aguascalientes and Tlaxcala. Freshwater gastropods Neritidae * '' Clypeolum latissimum'' (Broderip, 1833)Alexander Czaja, Iris Gabriela Meza-Sánchez, José Luis Estrada-Rodríguez, Ulises Romero-Méndez, Jorge Sáenz-Mata, Verónica Ávila-Rodríguez, Jorge Luis Becerra-López, Josué Raymundo Estrada-Arellano, Gabriel Fernando Cardoza-Martínez, David Ramiro Aguillón-Gutiérrez, Diana Gabriela Cordero-Torres, Alan P. Covich (2020). "The freshwater snails (Mollusca: Gastropoda) of Mexico: updated checklist, endemicit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chihuahuan Desert
The Chihuahuan Desert ( es, Desierto de Chihuahua, ) is a desert ecoregion designation covering parts of northern Mexico and the southwestern United States. It occupies much of far West Texas, the middle to lower Rio Grande Valley and the lower Pecos Valley in New Mexico, and a portion of southeastern Arizona, as well as the central and northern portions of the Mexican Plateau. It is bordered on the west by the Sonoran Desert, the Colorado Plateau, and the extensive Sierra Madre Occidental range, along with northwestern lowlands of the Sierra Madre Oriental range. Its largest, continual expanse is located in Mexico, covering a large portion of the state of Chihuahua, along with portions of Coahuila, north-eastern Durango, the extreme northern part of Zacatecas, and small western portions of Nuevo León. With an area of about , it is the largest desert in North America. The desert is fairly young, existing for only 8000 years. Geography There are several larger mountain ranges ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 Ci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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