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Crossodactylus Bokermanni
''Crossodactylus trachystomus'' is a species of frog in the family Hylodidae. It is endemic to the Espinhaço Mountains in Minas Gerais, Brazil. Taxonomy Until 2015 three ''Crossodactylus'' species were known from the Espinhaço Mountains: ''Crossodactylus trachystomus'' (not observed in the field since the mid 1980s), an undescribed species most similar to ''C. trachystomus'', and ''Crossodactylus bokermanni'' described as a new species in 1985. Re-analysis of old samples and analysis of new samples could not show consistent differences between these taxa, for which ''Crossodactylus trachystomus'' is the valid name. Description Males measure and females in snout–vent length. The body is slender, and the head is longer than wide. The canthus rostralis is sharp. The tympanum is distinct. Habitat and conservation ''Crossodactylus trachystomus'' lives on the ground along permanent streams with sandy and rocky bottoms and bordered with grass and shrubs in montane savanna areas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johannes Theodor Reinhardt
Johannes Theodor Reinhardt (3 December 1816, in Copenhagen – 23 October 1882, in Frederiksberg) was a Danish zoologist and herpetologist. The son of Johannes Christopher Hagemann Reinhardt. Biography He participated as botanist in the first Galathea Expedition (1845—1847). In 1848 he became a curator at the ''Kongelige Naturhistoriske Museum'' in Copenhagen (now University of Copenhagen Zoological Museum). He taught classes in zoology at the ''Danmarks Tekniske Universitet'' (1856–1878) and at the University of Copenhagen (1861–1878). In 1854 he received the title of professor.Darwinarkivet Biographies; Johannes Theodor Reinhardt. During the 1840s and 1850s he periodically worked in |
Atlantic Forest
The Atlantic Forest ( pt, Mata Atlântica) is a South American forest that extends along the Atlantic coast of Brazil from Rio Grande do Norte state in the northeast to Rio Grande do Sul state in the south and inland as far as Paraguay and the Misiones Province of Argentina, where the region is known as Selva Misionera. The Atlantic Forest has ecoregions within the following biome categories: seasonal moist and dry broad-leaf tropical forests, tropical and subtropical grasslands, savannas, and shrublands, and mangrove forests. The Atlantic Forest is characterized by a high biodiversity and endemism. It was the first environment that the Portuguese colonists encountered over 500 years ago, when it was thought to have had an area of , and stretching an unknown distance inland, making it, back then, the second largest rainforest on the planet, only behind the Amazon rainforest. Over 85% of the original area has been deforested, threatening many plant and animal species with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Christian Frederik Lütken
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the intro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Described In 1862
Amphibians are four-limbed and ectothermic vertebrates of the class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial, fossorial, arboreal or freshwater aquatic ecosystems. Thus amphibians typically start out as larvae living in water, but some species have developed behavioural adaptations to bypass this. The young generally undergo metamorphosis from larva with gills to an adult air-breathing form with lungs. Amphibians use their skin as a secondary respiratory surface and some small terrestrial salamanders and frogs lack lungs and rely entirely on their skin. They are superficially similar to reptiles like lizards but, along with mammals and birds, reptiles are amniotes and do not require water bodies in which to breed. With their complex reproductive needs and permeable skins, amphibians are often ecological indicators; in recent decades there has been a dramatic decline ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibians Of Brazil
Amphibians are four-limbed and ectothermic vertebrates of the class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial, fossorial, arboreal or freshwater aquatic ecosystems. Thus amphibians typically start out as larvae living in water, but some species have developed behavioural adaptations to bypass this. The young generally undergo metamorphosis from larva with gills to an adult air-breathing form with lungs. Amphibians use their skin as a secondary respiratory surface and some small terrestrial salamanders and frogs lack lungs and rely entirely on their skin. They are superficially similar to reptiles like lizards but, along with mammals and birds, reptiles are amniotes and do not require water bodies in which to breed. With their complex reproductive needs and permeable skins, amphibians are often ecological indicators; in recent decades there has been a dramatic decline ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Fauna Of Brazil
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] |
Crossodactylus
''Crossodactylus'' is a genus of frogs in the family Hylodidae Hylodidae, commonly known as giant Neotropical torrent frogs, is a family of frogs native to Brazil and northern Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the souther .... The genus occurs in Brazil, southern Paraguay, and northern Argentina. These frogs are sometimes known as Limnocharis, Tarsopterus, Calamobates, and spinythumb frogs. They typically inhabit streams in mountainous areas in the Atlantic Forest or in montane savanna. Species There are 14 species: References Hylodidae Amphibians of South America Amphibian genera Taxa named by André Marie Constant Duméril Taxa named by Gabriel Bibron Taxonomy articles created by Polbot {{hyloidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serra Do Cipó National Park
The Serra do Cipó National Park ( pt, Parque Nacional da Serra do Cipó) is a national park in the state of Minas Gerais, Brazil. Location The park is in the Cerrado biome. It covers . It was created by decree 90.223 of 25 September 1984, modified by decree 94.984 of 30 September 1987. It is administered by the Chico Mendes Institute for Biodiversity Conservation. It lies in the municipalities of Itabira, Itambé do Mato Dentro, Jaboticatubas, Nova União, Morro do Pilar and Santana do Riacho, Minas Gerais. Conservation The park is classified as IUCN protected area category II (national park). It has the objectives of preserving natural ecosystems of great ecological relevance and scenic beauty, enabling scientific research, environmental education, outdoors recreation and eco-tourism. Protected species include the maned wolf (''Chrysocyon brachyurus''), ocelot (''Leopardus pardalis''), cougar (''Puma concolor''), white-necked hawk The white-necked hawk (''Buteogallus la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat Destruction
Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby reducing biodiversity and species abundance. Habitat destruction is the leading cause of biodiversity loss. Fragmentation and loss of habitat have become one of the most important topics of research in ecology as they are major threats to the survival of endangered species. Activities such as harvesting natural resources, industrial production and urbanization are human contributions to habitat destruction. Pressure from agriculture is the principal human cause. Some others include mining, logging, trawling, and urban sprawl. Habitat destruction is currently considered the primary cause of species extinction worldwide. Environmental factors can contribute to habitat destruction more indirectly. Geological processes, climate change, introdu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tympanum (anatomy)
The tympanum is an external hearing structure in animals such as mammals, birds, some reptiles, some amphibians and some insects. Using sound, vertebrates and many insects are capable of sensing their prey, identifying and locating their predators, warning other individuals, and locating potential mates and rivals by hearing the intentional or unintentional sounds they make. In general, any animal that reacts to sounds or communicates by means of sound, needs to have an auditory mechanism. This typically consists of a membrane capable of vibration known as the tympanum, an air-filled chamber and sensory organs to detect the auditory stimuli. Anurans In frogs and toads, the tympanum is a large external oval shape membrane made up of nonglandular skin. It is located just behind the eye. It does not process sound waves; it simply transmits them to the inner parts of the amphibian's ear, which is protected from the entry of water and other foreign objects. A frog's ear drum works ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christian Frederik Lütken
Christian Frederik Lütken (; 7 October 1827, in Sorø – 6 February 1901), was a Denmark, Danish zoologist and naturalist. In 1852, he resigned his commission as a lieutenant with the Danish army, and earned his master's degree in sciences the following year.Darwinarkivet.dk Christian Frederik Lütken (1827-1901) Afterwards, he served as an assistant to Japetus Steenstrup (1813–1897) at the University of Copenhagen Zoological Museum, at the time an independent institution, now part of the University of Copenhagen Botanical Garden, Natural History Museum of Denmark. Following Steenstrup's retirement in 1885, he became a professor of zoology and director of the zoological museum. As he grew older, he suffered from physical infirmities and during the last year of his life, he was strick ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canthus Rostralis
In snakes and amphibians, the canthus, canthal ridge or ''canthus rostralis'',Spawls S, Branch B. 1995. ''The Dangerous Snakes of Africa''. Ralph Curtis Books. Dubai: Oriental Press. 192 pp. . is the angle between the flat crown of the head and the side of the head between the eye and the snout,Mallow D, Ludwig D, Nilson G. 2003. ''True Vipers: Natural History and Toxinology of Old World Vipers''. Krieger Publishing Company, Malabar, Florida. . or more specifically, between the supraocular scale and the rostral scale. It is defined as a sharp ridge in many viperids, but is rounded in most rattlesnakes Rattlesnakes are venomous snakes that form the genera ''Crotalus'' and ''Sistrurus'' of the subfamily Crotalinae (the pit vipers). All rattlesnakes are vipers. Rattlesnakes are predators that live in a wide array of habitats, hunting small anima ..., for example.Campbell JA, Lamar WW. 2004. The Venomous Reptiles of the Western Hemisphere. Comstock Publishing Associates, Ithaca and Lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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