|
Typhleotris Madgascarensis
''Typhleotris madagascariensis'' is a species of fish in the family Milyeringidae that is endemic to Madagascar, where it is only known from underground waters in the southwestern portion of the island. This cavefish is blind and lacks pigmentation, and can reach a standard length of . This species is known from more than 10 caves and sinkholes in the Mahafaly Plateau region, in places where the water temperature typically ranges from and the pH is slightly above neutral. Although considered endangered because of its restricted range and not found to be common anywhere in its range in earlier studies, recent surveys found that the species is locally abundant, occurring in especially high numbers in the Andranoilove, Andriamaniloke, Lalia and Mitoho caves. In the southern part of its range, ''T. madagascariensis'' co-occurs with '' T. mararybe'', which is not as common or widespread. ''T. madagascariensis'' feeds on various invertebrates. Some of the limestone caves where th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tsimanampetsotsa National Park
Tsimanampetsotsa National Park also spelt Tsimanampetsotse, and known as Tsimanampetsotsa Nature Reserve is a 432 km2 national park on the south-west coast of Madagascar in the region Atsimo-Andrefana. The park is south of Toliara and south of the capital, Antananarivo. Route Nationales (RN) 10 to Faux Cap passes the park and the nearest airport is at Toliara. The national park contains and is named after Lake Tsimanampetsotsa. History and Significance Tsimanampetsotsa National Park encompasses the westernmost escarpment of the limestone Mahafaly Plateau. It was first protected in 1927 for its endemic flora and fauna and became a national park in 1966. It is within the Madagascar spiny forests or "spiny desert" of southern Madagascar, a globally distinctive ecoregion. This is the area with the highest level of plant endemism in Madagascar, with 48% of the genera and 95% of the species endemicElmqvist T, Pyyko ̈nen M, Tengo ̈M, Rakotondrasoa F, Rabakonandrianina E, et al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Typhleotris Mararybe
''Typhleotris mararybe'' is a critically endangered species of fish in the family Milyeringidae, the blind cave gobies. It is a troglobitic species endemic to cave habitat in southwestern Madagascar. It is unique among known cave-dwelling fish in that is both blind and darkly pigmented.Sparks, J. S. and P. Chakrabarty. (2012)Revision of the endemic Malagasy cavefish genus ''Typhleotris'' (Teleostei: Gobiiformes: Milyeringidae), with discussion of its phylogenetic placement and description of a new species.''American Museum Novitates'' 3764, 1-28. It has well-developed nonvisual sensory systems and dives to avoid approaching objects. The fish was first collected in 2008 and was described to science as a new species in 2012. Description ''Typhleotris mararybe'' is about long. The body is uniformly dark brown in color, and the fins are mostly white with brown bases. Its sensory systems include a series of pores on its head, but it lacks eyes. The fish is relatively slow-moving, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Fauna Of Madagascar
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] |
Cave Fish
Cavefish or cave fish is a generic term for fresh and brackish water fish adapted to life in caves and other underground habitats. Related terms are subterranean fish, troglomorphic fish, troglobitic fish, stygobitic fish, phreatic fish and hypogean fish.Romero, Aldemaro, editor (2001). ''The Biology of Hypogean Fishes.'' Developments in Environmental Biology of Fishes. Helfman, G.S. (2007). ''Fish Conservation: A Guide to Understanding and Restoring Global Aquatic Biodiversity and Fishery Resources'', pp. 41–42. Island Press. There are more than 200 scientifically described species of obligate cavefish found on all continents, except Antarctica. Although widespread as a group, many cavefish species have very small ranges and are seriously threatened.Fenolio, D.B.; Zhao, Y.; Niemiller, M.L.; and Stout, J. (2013). ''In-situ observations of seven enigmatic cave loaches and one cave barbel from Guangxi, China, with notes on conservation status.'' Speleobiology Notes 5: 19-33.Proud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Typhleotris
''Typhleotris'' is a genus of cavefish that are endemic to caves in southwestern Madagascar. Although traditionally considered to belong to the family Eleotridae, studies show that they represent a distinct and far-separated lineage together with the ''Milyeringa ''Milyeringa'' is a genus of blind cavefish from the Cape Range and Barrow Island, northwestern Australia. Although traditionally considered to belong to the family Eleotridae, studies show that they represent a distinct and far-separated linea ...'' cavefish from Australia, leading some to move them to their own family, Milyeringidae. Species The recognized species in this genus are: * '' Typhleotris madagascariensis'' Petit, 1933 * '' Typhleotris mararybe'' Sparks and Chakrabarty, 2012 * '' Typhleotris pauliani'' Arnoult, 1959 See also * '' Glossogobius ankaranensis'', another cave fish species from Madagascar References Milyeringidae Taxonomy articles created by Polbot {{Gobiiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sensu Lato
''Sensu'' is a Latin word meaning "in the sense of". It is used in a number of fields including biology, geology, linguistics, semiotics, and law. Commonly it refers to how strictly or loosely an expression is used in describing any particular concept, but it also appears in expressions that indicate the convention or context of the usage. Common qualifiers ''Sensu'' is the ablative case of the noun ''sensus'', here meaning "sense". It is often accompanied by an adjective (in the same case). Three such phrases are: *''sensu stricto'' – "in the strict sense", abbreviation ''s.s.'' or ''s.str.''; *''sensu lato'' – "in the broad sense", abbreviation ''s.l.''; *''sensu amplo'' – "in a relaxed, generous (or 'ample') sense", a similar meaning to ''sensu lato''. Søren Kierkegaard uses the phrase ''sensu eminenti'' to mean "in the pre-eminent r most important or significantsense". When appropriate, comparative and superlative adjectives may also be used to convey the meaning ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allopatry
Allopatric speciation () – also referred to as geographic speciation, vicariant speciation, or its earlier name the dumbbell model – is a mode of speciation that occurs when biological populations become geographically isolated from each other to an extent that prevents or interferes with gene flow. Various geographic changes can arise such as the movement of continents, and the formation of mountains, islands, bodies of water, or glaciers. Human activity such as agriculture or developments can also change the distribution of species populations. These factors can substantially alter a region's geography, resulting in the separation of a species population into isolated subpopulations. The vicariant populations then undergo genetic changes as they become subjected to different selective pressures, experience genetic drift, and accumulate different mutations in the separated populations' gene pools. The barriers prevent the exchange of genetic information between th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endangered
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 s ... [...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] |
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] |
Georges Petit (ichthyologist)
Georges Petit (11 March 1856 – 12 May 1920) was a French art dealer, a key figure in the Paris art world and an important promoter and cultivator of Impressionist artists. Early career Petit was the son of François Petit, who founded the firm of art dealers at 7, rue Saint-Georges (Paris) in 1846. Within just a few years, the ''Galerie François Petit'' was among the most powerful firms in the French art market. According to Robert Jensen in his book ''Marketing Modernism in Fin-de-Siecle Europe'', the auction house assumed, "multiple roles that ran the gamut from certifying the authenticity of the object, to guiding it through the hazards of the marketplace, to establishing its provenance and enlisting critics and historians to situate the artist's importance." Georges Petit inherited the firm, as well as a château and 3 million francs in 1877. He constructed a town house on the rue de Sèze. His annual expenses amounted to some 400,000 francs. That's what he spent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Endemic Fauna Of Madagascar")
