|
Amnirana Nicobariensis
''Amnirana'' is a genus of frogs in the family Ranidae, "true frogs". The genus is primarily found in Sub-Saharan Africa, but one species occurs in parts of southern and southeastern Asia. Some of the African species are widespread but contain undescribed cryptic diversity. Most (but not all) species have a white upper lip, and the genus is sometimes known as the white-lipped frogs. Taxonomy ''Amnirana'' was originally introduced as a subgenus of ''Rana''. It was often included in the then-diverse genus ''Hylarana'', until Oliver and colleagues revised the genus in 2015, delimiting ''Hylarana'' more narrowly and elevating ''Amnirana'' to genus rank. Within the genus, '' Amnirana nicobariensis'' appears to be the sister taxon of the African clade of species, but the data are inconclusive. With more data available to resolve possible non-molecular synapomorphies of the genus, ''A. nicobariensis'' might become recognized as a separate genus. A later study suggested it to be closer to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amnirana Albolabris
''Amnirana albolabris'' is a species of frog in the family Ranidae. It is widely distributed in Sub-Saharan West and Middle Africa. However, the nominal species includes at least one undescribed species west of Benin; the formal taxonomic changes to split the species have not yet been done. Common names white-lipped frog and forest white-lipped frog has been coined for it, whereas Bamileke Plateau frog refers to now- synonymized ''Amnirana longipes'' (=''Hylarana longipes''). Distribution ''Amnirana albolabris'' occurs in West Africa (from west to east: Guinea, Sierra Leone, Liberia, Ivory Coast, Ghana, Togo, Nigeria) and in Middle Africa (from north to south and east: Cameroon, Central African Republic, Equatorial Guinea, Gabon, Republic of the Congo, Angola, Democratic Republic of the Congo, Uganda, Tanzania, Rwanda, Burundi, and Kenya). There seems to be a gap in the distribution between western Togo and western Nigeria. Phylogeny and taxonomy ''Amnirana albolabris'' includes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vocal Sac
The vocal sac is the flexible membrane of skin possessed by most male frogs and toads. The purpose of the vocal sac is usually as an amplification of their mating or advertisement call. The presence or development of the vocal sac is one way of externally determining the sex of a frog or toad in many species; taking frogs as an example; The vocal sac is open to the mouth cavity of the frog, with two slits on either side of the tongue. To call, the frog inflates its lungs and shuts its nose and mouth. Air is then expelled from the lungs, through the larynx, and into the vocal sac. The vibrations of the larynx emits a sound, which resonates on the elastic membrane of the vocal sac. The resonance causes the sound to be amplified and allows the call to carry further. Muscles within the body wall force the air back and forth between the lungs and vocal sac. Development The development of the vocal sac is different in most species, however they mostly follow the same process. The d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphibian Genera
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
True Frogs
True frogs is the common name for the frog family Ranidae. They have the widest distribution of any frog family. They are abundant throughout most of the world, occurring on all continents except Antarctica. The true frogs are present in North America, northern South America, Europe, Africa (including Madagascar), and Asia. The Asian range extends across the East Indies to New Guinea and a single species (the Australian wood frog (''Hylarana daemelii'')) has spread into the far north of Australia. Typically, true frogs are smooth and moist-skinned, with large, powerful legs and extensively webbed feet. The true frogs vary greatly in size, ranging from small—such as the wood frog (''Lithobates sylvatica'')—to large. Many of the true frogs are aquatic or live close to water. Most species lay their eggs in the water and go through a tadpole stage. However, as in most families of frogs, there is large variation of habitat within the family. There are also arboreal species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amnirana
''Amnirana'' is a genus of frogs in the family Ranidae, "true frogs". The genus is primarily found in Sub-Saharan Africa, but one species occurs in parts of southern and southeastern Asia. Some of the African species are widespread but contain undescribed cryptic diversity. Most (but not all) species have a white upper lip, and the genus is sometimes known as the white-lipped frogs. Taxonomy ''Amnirana'' was originally introduced as a subgenus of ''Rana''. It was often included in the then-diverse genus '' Hylarana'', until Oliver and colleagues revised the genus in 2015, delimiting ''Hylarana'' more narrowly and elevating ''Amnirana'' to genus rank. Within the genus, ''Amnirana nicobariensis'' appears to be the sister taxon of the African clade of species, but the data are inconclusive. With more data available to resolve possible non-molecular synapomorphies of the genus, ''A. nicobariensis'' might become recognized as a separate genus. A later study suggested it to be closer t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synonym (taxonomy)
The Botanical and Zoological Codes of nomenclature treat the concept of synonymy differently. * In botanical nomenclature, a synonym is a scientific name that applies to a taxon that (now) goes by a different scientific name. For example, Linnaeus was the first to give a scientific name (under the currently used system of scientific nomenclature) to the Norway spruce, which he called ''Pinus abies''. This name is no longer in use, so it is now a synonym of the current scientific name, ''Picea abies''. * In zoology, moving a species from one genus to another results in a different binomen, but the name is considered an alternative combination rather than a synonym. The concept of synonymy in zoology is reserved for two names at the same rank that refers to a taxon at that rank - for example, the name ''Papilio prorsa'' Linnaeus, 1758 is a junior synonym of ''Papilio levana'' Linnaeus, 1758, being names for different seasonal forms of the species now referred to as ''Araschnia le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amnirana Parkeriana
''Amnirana parkeriana'', commonly known as Congolo frog, or Parker's white-lipped frog, is a species of frog in the family Ranidae. It is endemic to Angola. Its natural habitats are subtropical or tropical moist lowland forests and swamp A swamp is a forested wetland.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p. Swamps are considered to be transition zones because both land and water play a role in ...s. References parkeriana Frogs of Africa Amphibians of Angola Endemic fauna of Angola Amphibians described in 1938 Taxa named by Robert Mertens Taxonomy articles created by Polbot {{Ranidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amnirana Occidentalis
''Amnirana occidentalis'' is a species of frog in the family Ranidae. It is found in Ivory Coast, Ghana, Guinea, Liberia, and possibly Nigeria. Its natural habitats are subtropical or tropical moist lowland forests, freshwater marshes, and intermittent freshwater marshes. It is threatened by 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 .... References occidentalis Amphibians described in 1960 Taxonomy articles created by Polbot {{Ranidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amnirana Lemairei
''Amnirana lemairei'' is a species of frog in the family Ranidae. It is found in Angola, Democratic Republic of the Congo, and Zambia. Its natural habitats are dry savanna A savanna or savannah is a mixed woodland-grassland (i.e. grassy woodland) ecosystem characterised by the trees being sufficiently widely spaced so that the canopy does not close. The open canopy allows sufficient light to reach the ground to ... and moist savanna. References * Channing, A. & Poynton, J.C. 2004.Amnirana lemairei 2006 IUCN Red List of Threatened Species. Downloaded on 23 July 2007. lemairei Frogs of Africa Amphibians of Angola Amphibians of the Democratic Republic of the Congo Amphibians of Zambia Taxa named by Gaston-François de Witte Amphibians described in 1921 Taxonomy articles created by Polbot {{Ranidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amnirana Galamensis
''Amnirana galamensis'' is a species of frog in the family Ranidae. It is found in western, central, and eastern Africa. Its natural habitats are dry savanna, moist savanna, subtropical or tropical moist shrubland, rivers, shrub-dominated wetlands, swamps, freshwater lakes, intermittent freshwater lakes, freshwater marshes, intermittent freshwater marshes, rural gardens, urban area An urban area, built-up area or urban agglomeration is a human settlement with a high population density and infrastructure of built environment. Urban areas are created through urbanization and are categorized by urban morphology as cities, t ...s, water storage areas, ponds, canals and ditches. References * Rödel, M.-O., Poynton, J.C., Largen, M., Howell, K. & Lötters, S. 2004.Amnirana galamensis 2006 IUCN Red List of Threatened Species. Downloaded on 23 July 2007. galamensis Amphibians described in 1841 Taxonomy articles created by Polbot {{Ranidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amnirana Fonensis
''Amnirana fonensis'' is a species of frog in the family Ranidae. It is endemic to Simandou, Guinea. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by 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 .... References fonensis Endemic fauna of Guinea Amphibians of West Africa Frogs of Africa Amphibians described in 2004 Taxonomy articles created by Polbot {{Ranidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amnirana Darlingi
''Amnirana darlingi'', commonly known as Darling's golden-backed frog, is a species of frogs in the family Ranidae. It is found in eastern Angola, the Caprivi Strip of Namibia, extreme northern Botswana, extreme southern Democratic Republic of the Congo, Zambia (but for the northeast), eastern and northern Zimbabwe, southern Malawi, and west-central Mozambique. Its natural habitats are subtropical or tropical dry forests, subtropical or tropical moist lowland forests, moist savanna, subtropical or tropical moist shrubland, subtropical or tropical seasonally wet or flooded lowland grassland, rivers, swamps, freshwater lakes, freshwater marshes, arable land, pastureland, water storage areas, and ponds. Conservation Significant pressures are present from an expanding human population of the region, particularly due to conversion of habitat to agriculture, extraction of river water for human consumption, and widespread slash-and-burn practises. According to C. Michael Hogan: "While ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.png "Click for more on -> Amphibian Genera")
