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Megaelosia
''Megaelosia goeldii'', also known as the Rio big-tooth frog, is a species of frog in the family Hylodidae. It is the only member of the genus ''Megaelosia.'' It is endemic to Southeast Brazil and occurs in São Paulo and Rio de Janeiro states. It is named after Émil Goeldi, a Swiss zoologist who worked in Brazil. Taxonomy The genus ''Megaelosia'' formerly contained several other species, but all of these were reclassified in a new genus, ''Phantasmarana'', in 2021 based on a phylogenetic study, leaving ''M. goeldii'' as the only remaining member of ''Megaelosia''. Description Males measure and females in snout–vent length (based on 2 males and 3 females only). The dorsolateral skin is granular. The snout is subacuminate in dorsal view and protruding in profile. The canthus rostralis is evident and straight. Males have neither vocal sacs nor vocal slits. Diet Stomach contents have been found to contain insects (cockroaches, Coleoptera, lepidopteran caterpillars), earthwor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phantasmarana
''Phantasmarana'' is a genus of frogs in the family Hylodidae. The genus is endemic to the Atlantic Forest of southeastern Brazil. Members of this genus are associated with fast-flowing rivers. They are difficult to collect because they are easily disturbed and plunge into the torrential waters. Their teeth of are fanglike and larger than those of their close relatives. This might be associated with their predatory habits: at least two species are known prey on small vertebrates as well as invertebrates. The tadpoles are aquatic. ''Phantasmarana'' are relatively large frogs, with adults attaining lengths up to in snout–vent length. The genus name, ''Phantasmarana'' (literally translating to "phantom frog"), refers to the extreme rarity of wild members of this genus, as well as the lack of an advertisement call from members of the genus, instead making enigmatic noises. Members of ''Phantasmarana'' were formerly placed in '' Megaelosia'', which is now thought to contain only on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, th .... Phylogenetic evidence suggests the Hylodidae being the sister group to the Alsodidae. '' Megaelosia'' is one species that lost the ability to produce vocalizations which in turn are denoted as mute. Through observation of aggressive interactions, it was found that the species' vocal sacs are used for one form of their visual signaling and communication. Diversity The family contains 48 species in four genera: * '' Crossodactylus'' Duméril and Bibron, 1841 (13 species) * '' Hylodes'' Fitzinger, 1826 (26 species) * '' Megaelosia'' Miranda-Ribeiro, 1923 (one species) * '' Phantasmarana'' Vittorazzi, Augusto- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Émil Goeldi
Émil August Goeldi (var. Göldi, Portuguese language, Portuguese var. Emílio Augusto Goeldi) (28 August 1859 – 5 July 1917 in Bern), was a Swiss-Brazilian natural history, naturalist and zoologist. He was the father of Oswaldo Goeldi, a noted Brazilian engraver and illustrator. Biography Goeldi studied zoology in Jena, Germany with Ernst Haeckel, and in 1884 he was invited by Ladislau de Souza Mello Netto, the influential director of the Brazilian Museu Imperial e Nacional, to work at that institution. Goeldi arrived in Rio de Janeiro in 1885 to work in the National Museum (now the Museu Nacional (Brazil), Museu Nacional do Rio de Janeiro. In May 1890, he was fired, due to political circumstances related to the proclamation of the republic and the exile of his principal benefactor, Emperor Pedro II of Brazil, D. Pedro II. He was then invited by the governor of the state of Pará, Lauro Sodré, to reorganize the Pará Museum of Natural History and Ethnography, in Belém, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat
In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical manifestation of its ecological niche. Thus "habitat" is a species-specific term, fundamentally different from concepts such as environment or vegetation assemblages, for which the term "habitat-type" is more appropriate. The physical factors may include (for example): soil, moisture, range of temperature, and light intensity. Biotic factors will include the availability of food and the presence or absence of predators. Every species has particular habitat requirements, with habitat generalist species able to thrive in a wide array of environmental conditions while habitat specialist species requiring a very limited set of factors to survive. The habitat of a species is not necessarily found in a geographical area, it can be the interior ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomy Articles Created By Polbot
Taxonomy is the practice and science of categorization or classification (general theory), classification. A taxonomy (or taxonomical classification) is a scheme of classification, especially a hierarchical classification, in which things are organized into groups or types. Among other things, a taxonomy can be used to organize and index knowledge (stored as documents, articles, videos, etc.), such as in the form of a library classification system, or a Taxonomy for search engines, search engine taxonomy, so that users can more easily find the information they are searching for. Many taxonomies are hierarchy, hierarchies (and thus, have an intrinsic tree structure), but not all are. Originally, taxonomy referred only to the categorisation of organisms or a particular categorisation of organisms. In a wider, more general sense, it may refer to a categorisation of things or concepts, as well as to the principles underlying such a categorisation. Taxonomy organizes taxonomic uni ... [...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] |
Habitat Loss
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] |
Tadpole
A tadpole is the larval stage in the biological life cycle of an amphibian. Most tadpoles are fully aquatic, though some species of amphibians have tadpoles that are terrestrial. Tadpoles have some fish-like features that may not be found in adult amphibians such as a lateral line, gills and swimming tails. As they undergo metamorphosis, they start to develop functional lungs for breathing air, and the diet of tadpoles changes drastically. A few amphibians, such as some members of the frog family Brevicipitidae, undergo direct development i.e., they do not undergo a free-living larval stage as tadpoles instead emerging from eggs as fully formed "froglet" miniatures of the adult morphology. Some other species hatch into tadpoles underneath the skin of the female adult or are kept in a pouch until after metamorphosis. Having no hard skeletons, it might be expected that tadpole fossils would not exist. However, traces of biofilms have been preserved and fossil tadpoles have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alípio De Miranda-Ribeiro
Alípio de Miranda-Ribeiro (21 February 1874, Rio Preto, Minas Gerais – 8 January 1939) was a Brazilian herpetologist and ichthyologist. His son, Paulo de Miranda-Ribeiro (1901-1965) was also a zoologist. From an early age Alípio de Miranda-Ribeiro had a passion for natural history; as an adolescent he translated works of Buffon into Portuguese. He studied medicine in Rio de Janeiro, and from 1894 worked as a preparator at the National Museum of Brazil. Here he later served as secretary (from 1899), and director of the department of zoology (from 1929). During his career he explored the Amazon region many times, and under the direction of Candido Rondon (1865-1958), he took part in installing the first telegraph through the Amazon and Mato Grosso. In 1911, after visiting museums and fishery programs in Europe and the United States, he founded a fisheries inspectorate in Brazil, the first official services on fisheries in the nation. In 1911 he published the highly regarde ... [...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] |
Frog
A frog is any member of a diverse and largely Carnivore, carnivorous group of short-bodied, tailless amphibians composing the order (biology), order Anura (ανοὐρά, literally ''without tail'' in Ancient Greek). The oldest fossil "proto-frog" ''Triadobatrachus'' is known from the Early Triassic of Madagascar, but molecular clock, molecular clock dating suggests their split from other amphibians may extend further back to the Permian, 265 Myr, million years ago. Frogs are widely distributed, ranging from the tropics to subarctic regions, but the greatest concentration of species diversity is in tropical rainforest. Frogs account for around 88% of extant amphibian species. They are also one of the five most diverse vertebrate orders. Warty frog species tend to be called toads, but the distinction between frogs and toads is informal, not from Taxonomy (biology), taxonomy or evolutionary history. An adult frog has a stout body, protruding eyes, anteriorly-attached tongue, limb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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