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Hyloidea
Hyloidea is a superfamily of frogs.R.Alexander Pyron, John J.Wiens, 2011, ''A large-scale phylogeny of Amphibia including over 2800 species, and a revised classification of extant frogs, salamanders, and caecilians'' Hyloidea accounts for 54% of all living anuran species. The superfamily Hyloidea branched off from its closest relative, the Australobatrachia, during the mid-Cretaceous. The fossil evidence found during the Cretaceous-Paleogene extinction event could not determine the effects upon the frogs, due to the lack of fossils. Increased forestation erupted after this extinction, possibly leading to more arboreal adaptations of these anurans to be best suited for this habitat. Taxonomy Hyloidea contains the following subgroups: * Alsodidae - (26 species) * Batrachylidae - (14 species) *Bufonidae - true toads (700 species) *Brachycephaloides **Brachycephalidae - saddleback toads, flea toads and big-headed frogs (70 species) **Craugastoridae - fleshbelly frogs (822 spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cycloramphidae
The Cycloramphidae are a family of frogs endemic to southeastern Brazil. This family has seen large changes in its composition. Genera that have at some point been included in the Cycloramphidae are at present placed in the Alsodidae, Hylodidae, Leptodactylidae, and Rhinodermatidae Rhinodermatidae, also known as Darwin's frogs, mouth-breeding frogs or mouth-brooding frogs, is a small family of frogs found in temperate forests of southern Chile and adjacent Argentina. They are a unique and evolutionary significant group of .... Of these, the Alsodidae and/or Hylodidae have also been considered as subfamilies of Cycloramphidae (as, respectively, Alsodinae and Hylodinae); the Cycloramphidae, as recognized at present, would be similar to subfamily Cycloramphinae under such system. Genera There are 36 species in three genera: * '' Cycloramphus'' Tschudi, 1838 * '' Thoropa'' Cope, 1865 * '' Zachaenus'' Cope, 1866 The AmphibiaWeb omits ''Zachaenus'' from this family, considering ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dendrobatoidea
The Dendrobatoidea are a superfamily of frogs.Grant, T., Frost, D. R., Caldwell, J. P., Gagliardo, R., Haddad, C. F. B., Kok, P. J. R., Means, D. B., Noonan, B. P., Schargel, W. E., and Wheeler, W. C. (2006). Phylogenetic systematics of dart-poison frogs and their relatives (Amphibia: Athesphatanura: Dendrobatidae)' (PDF). Bulletin of the American Museum of Natural History, 299, 1–262 Taxonomy Families: *Aromobatidae (Grant et al., 2006) *Dendrobatidae Poison dart frog (also known as dart-poison frog, poison frog or formerly known as poison arrow frog) is the common name of a group of frogs in the Family (biology), family Dendrobatidae which are native to tropical Central and South America. T ... (Cope, 1865) References Vertebrate superfamilies Taxa named by Edward Drinker Cope {{Hyloidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ceratophryidae
The Ceratophryidae, also known as common horned frogs, are a family of frogs found in South America. It is a relatively small family with three extant genera and 12 species. Despite the common name, not all species in the family have the horn-like projections at the eyes. They have a relatively large head with big mouth, and they are ambush predators able to consume large prey, including lizards, other frogs, and small mammals. They inhabit arid areas and are seasonal breeders, depositing many small eggs in aquatic habitats. Tadpoles are free-living and carnivorous (''Ceratophrys'' and ''Lepidobatrachus'') or grazers (''Chacophrys''). Some species (especially from the genera ''Ceratophrys'' and ''Lepidobatrachus'') are popular in herpetoculture. The oldest fossils of the family are known from the Miocene epoch. The fossil giant frog ''Beelzebufo'' from the Late Cretaceous of Madagascar was formerly considered to belong to this family, but is now excluded, but is possibly closely r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhinodermatidae
Rhinodermatidae, also known as Darwin's frogs, mouth-breeding frogs or mouth-brooding frogs, is a small family of frogs found in temperate forests of southern Chile and adjacent Argentina. They are a unique and evolutionary significant group of frogs, being the most basal extant members of the widespread frog superfamily Hyloidea and having branched from the rest during the Late Cretaceous, just a few million years prior to the Cretaceous-Paleogene extinction event. The two genera, ''Rhinoderma'' and ''Insuetophrynus'', are thought to have diverged during the Paleocene. Despite their ancient origins, all three species in the family are now endangered due to habitat destruction, invasive species, and especially the spread of chytridomycosis in their native habitats, and one, the Chile Darwin's frog (''Rhinoderma rufum''), may already be extinct. Genera There are two genera recognised with three species: * '' Insuetophrynus'' Barrio, 1970 (monotypic In biology, a monotypic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australobatrachia
Australobatrachia ("southern frogs") is a clade of frogs in the suborder Neobatrachia. It comprises three families of frogs with a Gondwanan distribution, being known from Chile, Australia, and New Guinea. Together, they form the sister group to the superfamily Hyloidea. Taxonomy The common ancestor of all three families inhabited South America during the Early Cretaceous (about 125 million years ago). By about 100 million years ago, the ancestors of the Calyptocephalellidae diverged from the Myobatrachoidea, as the ancestral Myobatrachoidea moved south, colonizing the Australian continent via then-unglaciated Antarctica. The two families within Myobatrachoidea diverged from each other later in the Cretaceous or during the earliest Paleocene. Australobatrachia contains the following subgroups: * Calyptocephalellidae - Chilean toads (5 species) * Myobatrachoidea ** Limnodynastidae - Australian ground frogs (44 species) ** Myobatrachidae Myobatrachidae, commonly known as Aus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Guinea
New Guinea (; Hiri Motu Hiri Motu, also known as Police Motu, Pidgin Motu, or just Hiri, is a language of Papua New Guinea, which is spoken in surrounding areas of Port Moresby (Capital of Papua New Guinea). It is a simplified version of Motu, from the Austronesian l ...: ''Niu Gini''; id, Papua, or , historically ) is the List of islands by area, world's second-largest island with an area of . Located in Oceania in the southwestern Pacific Ocean, the island is separated from Mainland Australia, Australia by the wide Torres Strait, though both landmasses lie on the same continental shelf. Numerous smaller islands are located to the west and east. The eastern half of the island is the major land mass of the independent state of Papua New Guinea. The western half, known as Western New Guinea, forms a part of Indonesia and is organized as the provinces of Papua (province), Papua, Central Papua, Highland Papua, South Papua, Southwest Papua, and West Papua (province), West ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bayesian Inference
Bayesian inference is a method of statistical inference in which Bayes' theorem is used to update the probability for a hypothesis as more evidence or information becomes available. Bayesian inference is an important technique in statistics, and especially in mathematical statistics. Bayesian updating is particularly important in the dynamic analysis of a sequence of data. Bayesian inference has found application in a wide range of activities, including science, engineering, philosophy, medicine, sport, and law. In the philosophy of decision theory, Bayesian inference is closely related to subjective probability, often called "Bayesian probability". Introduction to Bayes' rule Formal explanation Bayesian inference derives the posterior probability as a consequence of two antecedents: a prior probability and a "likelihood function" derived from a statistical model for the observed data. Bayesian inference computes the posterior probability according to Bayes' theorem: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maximum Likelihood
In statistics, maximum likelihood estimation (MLE) is a method of estimation theory, estimating the Statistical parameter, parameters of an assumed probability distribution, given some observed data. This is achieved by Mathematical optimization, maximizing a likelihood function so that, under the assumed statistical model, the Realization (probability), observed data is most probable. The point estimate, point in the parameter space that maximizes the likelihood function is called the maximum likelihood estimate. The logic of maximum likelihood is both intuitive and flexible, and as such the method has become a dominant means of statistical inference. If the likelihood function is Differentiable function, differentiable, the derivative test for finding maxima can be applied. In some cases, the first-order conditions of the likelihood function can be solved analytically; for instance, the ordinary least squares estimator for a linear regression model maximizes the likelihood when ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telmatobiidae
''Telmatobius'' is a genus of frogs native to the Andean highlands in South America, where they are found in Ecuador, Peru, Bolivia, northwestern Argentina and northern Chile. It is the only genus in the family Telmatobiidae. Some sources recognize ''Batrachophrynus'' as a valid genus distinct from ''Telmatobius''. Ecology and conservation All ''Telmatobius'' species are closely associated with water and most species are semi-aquatic, while a few are entirely aquatic.Angulo, A. (2008). Conservation Needs of Batrachophrynus and Telmatobius Frogs of the Andes of Peru. Conservation & Society 6(4): 328-333. DOI: 10.4103/0972-4923.49196 They are found in and near lakes, rivers and wetlands in the Andean highlands at altitudes between . The genus includes two of the world's largest fully aquatic frogs, the Lake Junin frog (''T. macrostomus'') and Titicaca water frog (''T. culeus''),Halliday, T. (2016). ''The Book of Frogs: A Life-Size Guide to Six Hundred Species from around the Worl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Odontophrynidae
The Odontophrynidae are a family of frogs from southern and eastern South America. This family was first established in 1969 as the tribe Odontophrynini within the (then) very large family Leptodactylidae. Molecular phylogenetics analyses prompted the move of this group to the Cycloramphidae in 2006, before they became recognized as their own family Odontophrynidae in 2011. Genera The genera with 52 species are: * '' Macrogenioglottus'' Carvalho, 1946 (one species) * ''Odontophrynus ''Odontophrynus'' is a genus of frogs in the family Odontophrynidae. They are found in southern and eastern South America. They are sometimes known as the escuerzos. Species The genus contains the following species: * '' Odontophrynus american ...'' Reinhardt and Lütken, 1862 (11 species) * '' Proceratophrys'' Miranda-Ribeiro, 1920 (40 species) References {{hyloidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leptodactylidae
The southern frogs form the Leptodactylidae, a name that comes from Greek meaning a bird or other animal having slender toes. They are a diverse Family (biology), family of frogs that most likely diverged from other hyloidea, hyloids during the Cretaceous. The family has undergone major taxonomic revisions in recent years, including the reclassification of the former subfamily Eleutherodactylinae into its own family the Eleutherodactylidae; the Leptodactylidae now number 206 species in 15 genera distributed throughout Mexico, the Caribbean, and Central America, Central and South America. The family includes terrestrial, burrowing, aquatic, and arboreal members, inhabiting a wide range of habitats. Several of the genera within the Leptodactylidae lay their eggs in foam nests. These can be in crevices, on the surface of water, or on forest floors. These foam nests are some of the most varied among frogs. When eggs hatch in nests on the forest floor, the tadpoles remain within the ne ... [...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] |
