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Sheldgoose
''Chloephaga'' is a genus of sheldgeese in the family Anatidae. Other sheldgeese are found in the genera ''Alopochen'' and ''Neochen''. Taxonomy The genus ''Chloephaga'' was introduced in 1838 by the English naturalist Thomas Campbell Eyton in his ''A Monograph on the Anatidae, or Duck Tribe''. He designated the type species as ''Chloephaga magellanica''. This is ''Anas magellanica'' Gmelin, JF 1789, which is a synonym of ''Anas leucoptera'' Gmelin, JF 1789. ''Anas leucoptera'' is now considered as a subspecies of the upland goose ''Chloephaga picta leucoptera''. The genus name comes from the combination of the Ancient Greek ''khloē'' meaning "grass" with ''-phagos'' meaning "-eating". A molecular phylogenetic study by Mariana Bulgarella and collaborators published in 2014 found that the Orinoco goose in the monotypic genus ''Neochem'', was embedded in the genus ''Chloephaga'': Based on this result, some authorities place the Orinoco goose together with the Andean goose ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chloephaga Picta 3
''Chloephaga'' is a genus of sheldgeese in the family Anatidae. Other sheldgeese are found in the genera '' Alopochen'' and ''Neochen''. Taxonomy The genus ''Chloephaga'' was introduced in 1838 by the English naturalist Thomas Campbell Eyton in his ''A Monograph on the Anatidae, or Duck Tribe''. He designated the type species as ''Chloephaga magellanica''. This is ''Anas magellanica'' Gmelin, JF 1789, which is a synonym of ''Anas leucoptera'' Gmelin, JF 1789. ''Anas leucoptera'' is now considered as a subspecies of the upland goose ''Chloephaga picta leucoptera''. The genus name comes from the combination of the Ancient Greek ''khloē'' meaning "grass" with ''-phagos'' meaning "-eating". A molecular phylogenetic study by Mariana Bulgarella and collaborators published in 2014 found that the Orinoco goose in the monotypic genus ''Neochem'', was embedded in the genus ''Chloephaga'': Based on this result, some authorities place the Orinoco goose together with the Andean goos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chloephaga Melanoptera1
''Chloephaga'' is a genus of sheldgeese in the family (biology), family Anatidae. Other Tadorninae, sheldgeese are found in the genera ''Alopochen'' and ''Neochen''. Taxonomy The genus ''Chloephaga'' was introduced in 1838 by the English naturalist Thomas Campbell Eyton in his ''A Monograph on the Anatidae, or Duck Tribe''. He designated the type species as ''Chloephaga magellanica''. This is ''Anas magellanica'' Johann Friedrich Gmelin, Gmelin, JF 1789, which is a Synonym (taxonomy), synonym of ''Anas leucoptera'' Gmelin, JF 1789. ''Anas leucoptera'' is now considered as a subspecies of the upland goose ''Chloephaga picta leucoptera''. The genus name comes from the combination of the Ancient Greek ''khloē'' meaning "grass" with ''-phagos'' meaning "-eating". A molecular phylogenetic study by Mariana Bulgarella and collaborators published in 2014 found that the Orinoco goose in the monotypic genus ''Neochem'', was embedded in the genus ''Chloephaga'': Based on this result, s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ruddy-headed Goose
The ruddy-headed goose (''Chloephaga rubidiceps'') is a species of waterfowl in tribe Tadornini of subfamily Anserinae. It is found in Argentina, Chile, and the Falkland Islands.HBW and BirdLife International (2021) Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 6. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v6_Dec21.zip retrieved August 7, 2022 Taxonomy and systematics The ruddy-headed goose is monotypic. Description The ruddy-headed goose is long. Males weigh and females . Adults have the same plumage. Their heads and necks are red-brown, their back, breast, and flanks gray and buff with brown barring, their belly cinnamon, and their tail black. Their wing's upperside is gray and the underside gray, black, and white. Their bill is black and the legs and feet orange with black markings. Juveniles are similar to adults but duller overall.Carboneras, C. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancient Greek
Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic period (), and the Classical period (). Ancient Greek was the language of Homer and of fifth-century Athenian historians, playwrights, and philosophers. It has contributed many words to English vocabulary and has been a standard subject of study in educational institutions of the Western world since the Renaissance. This article primarily contains information about the Epic and Classical periods of the language. From the Hellenistic period (), Ancient Greek was followed by Koine Greek, which is regarded as a separate historical stage, although its earliest form closely resembles Attic Greek and its latest form approaches Medieval Greek. There were several regional dialects of Ancient Greek, of which Attic Greek developed into Koi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corrientes Province
Corrientes (, ‘currents’ or ‘streams’; gn, Taragui), officially the Province of Corrientes ( es, Provincia de Corrientes; gn, Taragüí Tetãmini) is a province in northeast Argentina, in the Mesopotamia region. It is surrounded by (from the north, clockwise): Paraguay, the province of Misiones, Brazil, Uruguay, and the provinces of Entre Rios, Santa Fe and Chaco. History Before the arrival of the Spanish conquest, the Kaingang, Charrua and Guaraní lived in a big area that also covered most of the current province of Corrientes. The city of Corrientes was founded on April 3, 1588 by Juan Torres de Vera y Aragón as a mid-stop between Asunción and Buenos Aires; the city flourished thanks to the traffic from the route. Jesuits erected missions in the north of the province, where they dedicated themselves to the expansion of the faith. In the wars of independence from Spain, Corrientes joined Artigas' ''Liga de los Pueblos Libres'' (1814–1820). The attack of Pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upper Pleistocene
The Late Pleistocene is an unofficial age in the international geologic timescale in chronostratigraphy, also known as Upper Pleistocene from a stratigraphic perspective. It is intended to be the fourth division of the Pleistocene Epoch within the ongoing Quaternary Period. It is currently defined as the time between c. 129,000 and c. 11,700 years ago. The Late Pleistocene equates to the proposed Tarantian Age of the geologic time scale, preceded by the officially ratified Chibanian (formerly known as Middle Pleistocene) and succeeded by the officially ratified Greenlandian. The estimated beginning of the Tarantian is the start of the Eemian interglacial period ( Marine Isotope Stage 5). It is held to end with the termination of the Younger Dryas, some 11,700 years ago when the Holocene Epoch began. The term Upper Pleistocene is currently in use as a provisional or "quasi-formal" designation by the International Union of Geological Sciences (IUGS). Although the three oldest ag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coracoid
A coracoid (from Greek κόραξ, ''koraks'', raven) is a paired bone which is part of the shoulder assembly in all vertebrates except therian mammals (marsupials and placentals). In therian mammals (including humans), a coracoid process is present as part of the scapula, but this is not homologous with the coracoid bone of most other vertebrates. In other tetrapods it joins the scapula to the front end of the sternum and has a notch on the dorsal surface which, along with a similar notch on the ventral surface of the scapula, forms the socket in which the proximal end of the humerus (upper arm bone) is located. The acrocoracoid process is an expansion adjacent to this contact surface, to which the shoulderward end of the biceps brachii muscle attaches in these animals. In birds (and generally theropods and related animals), the entire unit is rigid and called scapulocoracoid. This plays a major role in bird flight. In dinosaurs the main bones of the pectoral girdle were the sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kelp Goose
The kelp goose (''Chloephaga hybrida'') is a species of waterfowl in tribe Tadornini of subfamily Anserinae. It is found in Argentina, Chile, and the Falkland Islands.HBW and BirdLife International (2021) Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 6. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v6_Dec21.zip retrieved August 7, 2022 Taxonomy and systematics The kelp goose has two subspecies, the nominate ''C. h. hybrida'' and ''C. h. malvinarum''. Description The kelp goose is long. Males of the nominate subspecies weigh and females . Subspecies ''C. h. malvinarum'' is heavier: Males weigh and females . The two subspecies have the same plumage but the sexes are completely different. Adult males are entirely white but for a black bill with a pink spot on the maxilla and yellow legs and feet. Adult females have a pale brown crown and chocolate brown h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Upland Goose
The upland goose or Magellan goose (''Chloephaga picta'') is a sheldgoose of the Tadorninae, shelduck-sheldgoose subfamily of the Anatidae, the biological Family (biology), family that includes the ducks and most duck-like waterfowl such as the Goose, geese and swans. Sheldgeese resemble true geese and display similar habits, yet they are more closely related to shelducks and ducks. The two recognized subspecies of upland goose are the continental ''picta'' subspecies and the insular (island) ''leucoptera'' subspecies. This species nests and breeds close to water (rivers, ponds, oceans) either on the ground or near it among vegetation, usually in grasslands or coastal meadows in the Falkland Islands or in southern Patagonia and Tierra del Fuego at the beginning of the austral summer. Population estimates suggest the insular subpopulations are stable, but continental populations show a recent decline in abundance. Upland geese are herbivores, specializing in plant leaves, stems and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ashy-headed Goose
The ashy-headed goose (''Chloephaga poliocephala'') is a species of waterfowl in tribe Tadornini of subfamily Anserinae. It is found in Argentina and Chile.HBW and BirdLife International (2021) Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 6. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v6_Dec21.zip retrieved August 7, 2022 Taxonomy and systematics The ashy-headed goose is monotypic. Description The ashy-headed goose is long. Males weigh and females . Adults have the same plumage. Their heads and necks are gray, their upper back and breast chestnut with fine barring, their flanks barred black and white, and their belly white. In flight their blackish wings show bold white leading and trailing patches and a metallic green speculum. Their bill is black and the legs and feet orange with black markings. Juveniles' rufous areas are much duller, their back ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andean Goose
The Andean goose (''Chloephaga melanoptera'') is a species of waterfowl in tribe Tadornini of subfamily Anserinae.HBW and BirdLife International (2021) Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 6. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v6_Dec21.zip retrieved August 7, 2022 It is found in Argentina, Bolivia, Chile, 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 July 2022. Species Lists of Birds for South American Countries and Territories. https://www.museum.lsu.edu/~Remsen/SACCCountryLists.htm retrieved July 24, 2022 Taxonomy and systematics The Andean goose's taxonomy is unsettled. The International Ornithological Committee (IOC) and BirdLife International's '' Handbook of the Birds of the World'' (HBW) place it in genus ''C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
