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Pauxi
The genus ''Pauxi'' consists of the three species of helmeted curassows, terrestrial black fowl with ornamental casque on their heads. All are found in South America. This genus contains 3 species As indicated by analysis of mt and nDNA sequences and calibrated with geological data, this genus' ancestors probably diverged from those of '' Mitu'', their closest living relatives, in the Tortonian (early Late Miocene), some 8–7.4 mya. How the present distribution in 4 small areas quite distant from each other came to be is not known. Given that helmeted curassows are birds of the foothills and uplands, it might be that the ancestral ''Pauxi'' population became fragmented by the uplift of the Andes, which in their area of distribution took place during the Late Miocene, around the ''Pauxi''-''Mitu'' divergence and some time after.(Pereira & Baker 2002, Pereira ''et al.'' 2002). Pereira & Baker (2002) reported an interesting find: in the mtDNA phylogeny, ''Pauxi'' was paraphyleti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horned Curassow
The horned curassow (''Pauxi unicornis''), or southern helmeted curassow, is a species of bird in the family Cracidae found in humid tropical and subtropical forests. It was first described by James Bond and Rodolphe Meyer de Schauensee in 1939 from a specimen collected in Bolivia, and further birds that were described from Peru in 1971 were thought to be a new subspecies. However, the taxonomical position (as subspecies or independent species) of the birds found in Peru in 1971 is unclear. The horned curassow as originally described is endemic to Bolivia. It is a large, predominantly black bird with a distinctive casque on its forehead. It is an uncommon bird with a limited range and is suffering from habitat loss, and the International Union for Conservation of Nature has rated its conservation status as being " critically endangered". Taxonomy and systematics In 1937 while in Bolivia Mr M. A. Carriker found two birds, a male and female, which were in the cracid family. The spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Helmeted Curassow
The horned curassow (''Pauxi unicornis''), or southern helmeted curassow, is a species of bird in the family Cracidae found in humid tropical and subtropical forests. It was first described by James Bond and Rodolphe Meyer de Schauensee in 1939 from a specimen collected in Bolivia, and further birds that were described from Peru in 1971 were thought to be a new subspecies. However, the taxonomical position (as subspecies or independent species) of the birds found in Peru in 1971 is unclear. The horned curassow as originally described is endemic to Bolivia. It is a large, predominantly black bird with a distinctive casque on its forehead. It is an uncommon bird with a limited range and is suffering from habitat loss, and the International Union for Conservation of Nature has rated its conservation status as being " critically endangered". Taxonomy and systematics In 1937 while in Bolivia Mr M. A. Carriker found two birds, a male and female, which were in the cracid family. The spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sira Curassow
The Sira curassow (''Pauxi koepckeae'') is a species of bird in the family Cracidae. It is found in the Cerros del Sira in central Peru. Its natural habitat is tropical, moist, montane cloud forest. It was first discovered in 1969, when a male and female were recovered (unfortunately the female specimen was accidentally eaten), and was not recorded by scientists again until 2000 and 2003, when local Asháninka people were shown pictures of the birds and respectively 1 and 14 people recalled having seen or hunted them in the past few years. The name 'Sira curassow' was proposed as a new English common name in 2011 by Gastañaga ''et al.'' to replace the previous 'horned curassow', in 2012 this proposal was adopted by most of her colleagues. In the Asháninka language of the area the bird is known as ''quiyuri'' according to Weske & Terborgh 971 ''piyori'' according to the report 'Nombres Asháninka de las Aves en la Cordillera el Sira' by González 998 or ''piuri'' according to G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helmeted Curassow
The helmeted curassow (''Pauxi pauxi'') or northern helmeted curassow, is a large terrestrial bird in the family Cracidae found in the subtropical cloud-forest in steep, mountainous regions of western Venezuela and northern Colombia. There are two subspecies found in different mountain ranges. It is a mostly black bird with a white tip to its tail, a red bill and a distinctive grey casque on its forehead. The population of this bird is in decline and the International Union for Conservation of Nature has rated its conservation status as "endangered". Description It is a large terrestrial black curassow with a small head, large bluish grey casque on forehead, red bill, white-tipped tail feathers, greenish glossed mantle and breast feathers, and white below. Both sexes are similar. Length in adult birds can vary from . The male, at 3.6 kg (8 lbs), is larger than the female, at 2.6 kg (5.8 lbs). Among standard measurements, the wing chord is , the tail is and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pauxi Pauxi -Denver Zoo, Colorado, USA -head-8a
The genus ''Pauxi'' consists of the three species of helmeted curassows, terrestrial black fowl with ornamental casque on their heads. All are found in South America. This genus contains 3 species As indicated by analysis of mt and nDNA sequences and calibrated with geological data, this genus' ancestors probably diverged from those of '' Mitu'', their closest living relatives, in the Tortonian (early Late Miocene), some 8–7.4 mya. How the present distribution in 4 small areas quite distant from each other came to be is not known. Given that helmeted curassows are birds of the foothills and uplands, it might be that the ancestral ''Pauxi'' population became fragmented by the uplift of the Andes, which in their area of distribution took place during the Late Miocene, around the ''Pauxi''-''Mitu'' divergence and some time after.(Pereira & Baker 2002, Pereira ''et al.'' 2002). Pereira & Baker (2002) reported an interesting find: in the mtDNA phylogeny, ''Pauxi'' was paraphyleti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pauxi
The genus ''Pauxi'' consists of the three species of helmeted curassows, terrestrial black fowl with ornamental casque on their heads. All are found in South America. This genus contains 3 species As indicated by analysis of mt and nDNA sequences and calibrated with geological data, this genus' ancestors probably diverged from those of '' Mitu'', their closest living relatives, in the Tortonian (early Late Miocene), some 8–7.4 mya. How the present distribution in 4 small areas quite distant from each other came to be is not known. Given that helmeted curassows are birds of the foothills and uplands, it might be that the ancestral ''Pauxi'' population became fragmented by the uplift of the Andes, which in their area of distribution took place during the Late Miocene, around the ''Pauxi''-''Mitu'' divergence and some time after.(Pereira & Baker 2002, Pereira ''et al.'' 2002). Pereira & Baker (2002) reported an interesting find: in the mtDNA phylogeny, ''Pauxi'' was paraphyleti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Curassow
Curassows are one of the three major groups of cracid birds. They comprise the largest-bodied species of the cracid family. Three of the four genera are restricted to tropical South America; a single species of ''Crax'' ranges north to Mexico. They form a distinct clade which is usually classified as the subfamily Cracinae. Evolution In line with the other 3 main lineages of cracids (chachalacas, true guans, and the horned guan), mt and nDNA sequence data indicates that the curassows diverged from their closest living relatives (probably the guans) at some time during the Oligocene, or c.35–20 mya (Pereira ''et al.'' 2002). This data must be considered preliminary until corroborated by material (e.g. fossil) evidence however. What appears certain from analysis of the molecular data, calibrated against geological events that would have induced speciation is that there are 2 major lineages of curassows: one containing only ''Crax'', and another made up of ''Mitu'' and ''Paux ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auk (journal)
''Ornithology'', formerly ''The Auk'' and ''The Auk: Ornithological Advances'', is a peer-reviewed scientific journal and the official publication of the American Ornithological Society (AOS). It was established in 1884 and is published quarterly. The journal covers the anatomy, behavior, and distribution of birds. It was named for the great auk, the symbol of the AOS. In 2018, the American Ornithology Society announced a partnership with Oxford University Press to publish ''The Auk: Ornithological Advances'' and '' The Condor: Ornithological Applications'' ''.'' In January 2021, the journal was renamed ''Ornithology'', with the stated goal of improving descriptiveness, thematic focus, and ease of citation of the journal title. The society's sister publication '' The Condor'' was renamed ''Ornithological Applications'' at the same time. Editors The following have been editors-in-chief of the journal: See also * List of ornithology journals References External links ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Object Identifier
A digital object identifier (DOI) is a persistent identifier or handle used to uniquely identify various objects, standardized by the International Organization for Standardization (ISO). DOIs are an implementation of the Handle System; they also fit within the URI system ( Uniform Resource Identifier). They are widely used to identify academic, professional, and government information, such as journal articles, research reports, data sets, and official publications. DOIs have also been used to identify other types of information resources, such as commercial videos. A DOI aims to resolve to its target, the information object to which the DOI refers. This is achieved by binding the DOI to metadata about the object, such as a URL where the object is located. Thus, by being actionable and interoperable, a DOI differs from ISBNs or ISRCs which are identifiers only. The DOI system uses the indecs Content Model for representing metadata. The DOI for a document remains fixed over t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sister Species
In phylogenetics, a sister group or sister taxon, also called an adelphotaxon, comprises the closest relative(s) of another given unit in an evolutionary tree. Definition The expression is most easily illustrated by a cladogram: Taxon A and taxon B are sister groups to each other. Taxa A and B, together with any other extant or extinct descendants of their most recent common ancestor (MRCA), form a monophyletic group, the clade AB. Clade AB and taxon C are also sister groups. Taxa A, B, and C, together with all other descendants of their MRCA form the clade ABC. The whole clade ABC is itself a subtree of a larger tree which offers yet more sister group relationships, both among the leaves and among larger, more deeply rooted clades. The tree structure shown connects through its root to the rest of the universal tree of life. In cladistic standards, taxa A, B, and C may represent specimens, species, genera, or any other taxonomic units. If A and B are at the same taxonomic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pliocene
The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58See the 2014 version of the ICS geologic time scale million years ago. It is the second and most recent epoch of the Neogene Period in the . The Pliocene follows the Epoch and is followed by the Epoch. Prior to the 2009 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Razor-billed Curassow
The razor-billed curassow (''Mitu tuberosum'') is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is found in Bolivia, Brazil, Colombia, and Peru.Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, A. Jaramillo, D. F. Lane, J. F. Pacheco, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. Version 24 August 2021. Species Lists of Birds for South American Countries and Territories. https://www.museum.lsu.edu/~Remsen/SACCCountryLists.htm retrieved August 24, 2021 Taxonomy and systematics The razor-billed curassow was originally placed in genus ''Crax'' but genetic data confirm that ''Mitu'' is a valid genus. It was for a time treated as a subspecies of Alagoas curassow (''Mitu mitu'') and they are now treated as sister species.Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, A. Jaramillo, D. F. Lane, J. F. Pacheco, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. Version 24 August 2021. A classification of the bird species of So ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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