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Long-bearded Honeyeater
The long-bearded honeyeater (''Melionyx princeps''), is a bird in the honeyeater family Meliphagidae. This species was formerly placed in the genus ''Melidectes''. It was moved to the resurrected genus ''Melionyx'' based on the results of a molecular phylogenetic study published in 2019. At the same time the common name was changed from "long-bearded melidectes" to "long-bearded honeyeater". Description The long-bearded honeyeater is 27 cm long.BirdLife International (2010). It has a long, slender black bill and orange skin behind its eye. Its plumage is soot-black. It is distinguished from the similar sooty honeyeaters by its wispy white beard, which reaches the bend of its wing. Distribution and habitat The honeyeater is endemic to Papua New Guinea, and is found only on Mt Giluwe, Mt Hagen, the Kubor Range, Mt Wilhelm, Mt Michael and in the Kaijende Highlands The Kaijende Highlands are a nearly uninhabited expanse of mountains near Porgera in Enga Province, Papua New ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ernst Mayr
Ernst Walter Mayr (; 5 July 1904 – 3 February 2005) was one of the 20th century's leading evolutionary biologists. He was also a renowned Taxonomy (biology), taxonomist, tropical explorer, ornithologist, Philosophy of biology, philosopher of biology, and History of science, historian of science. His work contributed to the conceptual revolution that led to the Modern synthesis (20th century), modern evolutionary synthesis of Gregor Mendel, Mendelian genetics, systematics, and Charles Darwin, Darwinian evolution, and to the development of the Species, biological species concept. Although Charles Darwin and others posited that multiple species could evolve from a single common ancestor, the mechanism by which this occurred was not understood, creating the ''species problem''. Ernst Mayr approached the problem with a new definition for species. In his book ''Systematics and the Origin of Species'' (1942) he wrote that a species is not just a group of Morphology (biology), morph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ernest Thomas Gilliard
Ernest Thomas Gilliard (23 November 1912 – 26 January 1965) was an American ornithologist and museum curator who led or participated in several ornithological expeditions, especially to South America and New Guinea. Gilliard was born in York, Pennsylvania. He began a lifelong association with the American Museum of Natural History (AMNH) in New York in 1932 by working there as a volunteer. In 1933 he was employed there as an assistant and subsequently passed through the full range of promotions to become Curator of Birds in 1963, unexpectedly dying in office two years later, in his 53rd year, of a sudden heart attack. During the 1930s Gilliard was involved in expeditions to Quebec, Newfoundland and Venezuela, and in the 1940s to Brazil, the Philippines and New Guinea. The 1950s saw more expeditions, not only to New Guinea, but also to Nepal and the West Indies. New Guinea, and especially its birds-of-paradise and bowerbirds, kept drawing him back, and he led a total of five exped ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meliphagidae
The honeyeaters are a large and diverse family, Meliphagidae, of small to medium-sized birds. The family includes the Australian chats, myzomelas, friarbirds, wattlebirds, miners and melidectes. They are most common in Australia and New Guinea, and found also in New Zealand, the Pacific islands as far east as Samoa and Tonga, and the islands to the north and west of New Guinea known as Wallacea. Bali, on the other side of the Wallace Line, has a single species. In total there are 186 species in 55 genera, roughly half of them native to Australia, many of the remainder occupying New Guinea. With their closest relatives, the Maluridae (Australian fairy-wrens), Pardalotidae (pardalotes), and Acanthizidae (thornbills, Australian warblers, scrubwrens, etc.), they comprise the superfamily Meliphagoidea and originated early in the evolutionary history of the oscine passerine radiation. Although honeyeaters look and behave very much like other nectar-feeding passerines around the wor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melidectes
''Melidectes'' is a genus of bird in the honeyeater family Meliphagidae. All six species are endemic to New Guinea. The generic name is derived from the Greek ''meli'' for honey and ''dektes'' for beggar or receiver. Description They are medium-sized honeyeaters, varied in appearance but possessing a long and sometimes stout bill and bare patch around the eye which is quite large and brightly coloured in some species. Habitat The genus is overwhelmingly restricted to montane environments. They occupy mountain forest, forest edge, alpine shrubland and shrubby thickets in grasslands. In some instances where two species occupy similar ranges, for example the Belford's melidectes and the yellow-browed melidectes in the Schrader Ranges, the two species exclude each other and occur at different attitudes. Feeding The diet of the melidectes is not known for all species, but for those that are known it consists of insects, nectar, pollen, fruit and berries. The short-bearded melidecte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melionyx
''Melionyx'' is a genus of bird in the family Meliphagidae. These species were formerly placed in the genus ''Melidectes''. They were moved to the resurrected genus ''Melionyx '' based on the results of a molecular phylogenetic study published in 2019. At the same time the common names were changed from "melidectes" to "honeyeater". The genus contains three species: * Sooty honeyeater (''Melionyx fuscus'') * Short-bearded honeyeater (''Melionyx nouhuysi'') * Long-bearded honeyeater The long-bearded honeyeater (''Melionyx princeps''), is a bird in the honeyeater family Meliphagidae. This species was formerly placed in the genus ''Melidectes''. It was moved to the resurrected genus ''Melionyx'' based on the results of a mol ... (''Melionyx princeps'') References Bird genera Taxa named by Tom Iredale {{Meliphagidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molecular Phylogenetic
Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to determine the processes by which diversity among species has been achieved. The result of a molecular phylogenetic analysis is expressed in a phylogenetic tree. Molecular phylogenetics is one aspect of molecular systematics, a broader term that also includes the use of molecular data in taxonomy and biogeography. Molecular phylogenetics and molecular evolution correlate. Molecular evolution is the process of selective changes (mutations) at a molecular level (genes, proteins, etc.) throughout various branches in the tree of life (evolution). Molecular phylogenetics makes inferences of the evolutionary relationships that arise due to molecular evolution and results in the construction of a phylogenetic tree. History The theoretical framew ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Papua New Guinea
Papua New Guinea (abbreviated PNG; , ; tpi, Papua Niugini; ho, Papua Niu Gini), officially the Independent State of Papua New Guinea ( tpi, Independen Stet bilong Papua Niugini; ho, Independen Stet bilong Papua Niu Gini), is a country in Oceania that comprises the eastern half of the island of New Guinea and its offshore islands in Melanesia (a region of the southwestern Pacific Ocean north of Australia). Its capital, located along its southeastern coast, is Port Moresby. The country is the world's third largest island country, with an area of . At the national level, after being ruled by three external powers since 1884, including nearly 60 years of Australian administration starting during World War I, Papua New Guinea established its sovereignty in 1975. It became an independent Commonwealth realm in 1975 with Elizabeth II as its queen. It also became a member of the Commonwealth of Nations in its own right. There are 839 known languages of Papua New Guinea, one of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kaijende Highlands
The Kaijende Highlands are a nearly uninhabited expanse of mountains near Porgera in Enga Province, Papua New Guinea. The highlands have been characterized as "some of Papua New Guinea's most pristine and scenic montane habitat". The Kaijende Highlands include Lake Tawa, Paiela Road, Omyaka Creek, Waile Creek and the Porgera Reservoir. The mountain range is 70 km north-west of Mount Hagen.BirdLife International (2010). According to a survey conducted in 2007, "areas like Kaijende are characterized by pronounced dominance of microtherm families, most notably by Cunoniaceae, Epacridaceae, Ericaceae, Geraniaceae, Myrsinaceae, Podocarpaceae, Ranunculaceae, Rosaceae, Theaceae, Violaceae, and Winteraceae." The Kaijende Highlands have received media attention since 2005 due to a number of new species discovered in the area. A notable study compiled samples of 759 specimens from the Kaijende Highlands, which is among the largest surveys by CI-RAP in Papua New Guinea, and disc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enga Province
Enga is one of the provinces in Papua New Guinea (PNG). It is located in the north most region of the highlands of PNG, having been divided from the Western Highlands to become a separate province when the provinces were created at the time of independence in 1975. The people of Enga are called Engans—they are a majority ethnic group—speaking one language in all its five districts: approximately 500,000 people. A small minority of Engans' land on the eastern side of the region remained in the Western Highlands, their territory being accessible by road from Mount Hagen but not directly from elsewhere in Enga territory. History Europeans—typically Australian gold prospectors—originally entered what is now Enga province from the east in the late 1920s, although the best-known exploration of Enga took place during the early 1930s when Mick Leahy and a party of men travelled from what later became Mount Hagen to the site of the future Wabag and then south through the Ambum Val ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vulnerable Species
A vulnerable species is a species which has been Conservation status, categorized by the International Union for Conservation of Nature as being threatened species, threatened with extinction unless the circumstances that are threatened species, threatening its survival and reproduction improve. Vulnerability is mainly caused by habitat loss or destruction of the species' home. Vulnerable habitat or species are monitored and can become increasingly threatened. Some species listed as "vulnerable" may be common in captivity (animal), captivity, an example being the military macaw. There are currently 5196 animals and 6789 plants classified as Vulnerable, compared with 1998 levels of 2815 and 3222, respectively. Practices such as cryoconservation of animal genetic resources have been enforced in efforts to conserve vulnerable breeds of livestock specifically. Criteria The International Union for Conservation of Nature uses several criteria to enter species in this category. A tax ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of Papua New Guinea
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. There are about ten thousand living species, more than half of which are passerine, or "perching" birds. Birds have whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimming. Birds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Described In 1951
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. There are about ten thousand living species, more than half of which are passerine, or "perching" birds. Birds have whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimming. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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