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Brown Fantail
The Bougainville fantail (''Rhipidura drownei''), formerly the brown fantail, is a species of bird in the family Rhipiduridae. It is endemic of Bougainville Island in the Solomon Islands. It was formerly considered to be conspecific with the Guadalcanal fantail. Description It is a small bird from 9-10 up to 14 cm long) dark bird with a long tail, which it often spreads like a fan. The main color of the plumage is brown, which is reflected in the former English name of this species. Upperparts - greyish-brown, underparts somewhat lighter, gray with an ocher tint and a faint white streak. The wings are brown above, the tail is light brown. The chest and head are greyish. On the head above the eye - a white stripe - "eyebrow" : photos, description, range map Sometimes there is also a light strip under the eye. Iris is dark brown. The beak is black or greyish brown, with a paler base underneath. The neck is whitish-gray. Legs are brownish gray. Males and females are rather similar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ernst Mayr
Ernst Walter Mayr ( ; ; 5 July 1904 – 3 February 2005) was a German-American evolutionary biologist. 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), morphologically sim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird
Birds are a group of warm-blooded vertebrates constituting the class (biology), class Aves (), characterised by feathers, toothless beaked jaws, the Oviparity, laying of Eggshell, hard-shelled eggs, a high Metabolism, metabolic rate, a four-chambered heart, and a strong yet lightweight Bird skeleton, skeleton. Birds live worldwide and range in size from the bee hummingbird to the common ostrich. There are over 11,000 living species and they are split into 44 Order (biology), orders. More than half are passerine or "perching" birds. Birds have Bird wing, wings 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 Flightless bird, loss of flight in some birds, including ratites, penguins, and diverse endemism, endemic island species. The digestive and respiratory systems of birds are also uniquely a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhipiduridae
The family Rhipiduridae are small insectivorous birds of Australasia, Southeast Asia and the Indian subcontinent that includes the fantails and silktails. Taxonomy and systematics The family contains 55 species which are divided into four genera: * Subfamily Rhipidurinae: **''Rhipidura'' – typical fantails (51 species) *Subfamily Lamproliinae: **'' Chaetorhynchus'' – drongo fantail **'' Eutrichomyias'' – cerulean flycatcher **''Lamprolia The silktails are a group of birds endemic to Fiji. The two species ( Taveuni silktail and Natewa silktail) are placed in the genus ''Lamprolia''. They look superficially like a diminutive bird-of-paradise but are actually closely related to the ...'' – silktails (2 species) References {{Taxonbar, from=Q847173 Bird families Birds of Oceania ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bougainville Island
Bougainville Island (; Tok Pisin: ''Bogenvil'') is the main island of the Autonomous Region of Bougainville, which is part of Papua New Guinea. Its land area is . The highest point is Mount Balbi, on the main island, at . The much smaller Buka Island, , lies to the north, across the wide Buka Passage, Buka Strait. Even though the strait is narrow, there is no bridge across it, but there is a regular ferry service between the key settlements on either side. The main airstrip in the north is in the town of Buka. Buka has an outcropping that is from New Ireland (island), New Ireland. Among the large islands of Papua New Guinea, New Ireland is the closest to Buka. Bougainville is the largest island in the Solomon Islands (archipelago), Solomon Islands archipelago. It was previously the main landmass in the North Solomon Islands, North Solomons, which were associated with the German Empire. Most of the islands in this archipelago (which are primarily concentrated in the southern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solomon Islands (archipelago)
The Solomon Islands (archipelago) is an island group in the western South Pacific Ocean, north-east of Australia. The archipelago is in the Melanesian subregion and bioregion of Oceania and forms the eastern boundary of the Solomon Sea. The many islands of the archipelago are distributed across the sovereign states of Papua New Guinea and Solomon Islands. The largest island in the archipelago is Bougainville Island, which is a part of the Autonomous Region of Bougainville (currently a part of Papua New Guinea) along with Buka Island, the Nukumanu Islands, and a number of smaller nearby islands. Much of the remainder falls within the territory of Solomon Islands and include the atolls of Ontong Java, Sikaiana, the raised coral atolls of Bellona and Rennell, and the volcanic islands of Choiseul, Guadalcanal, Makira, Malaita, New Georgia, the Nggelas, Santa Isabel, and the Shortlands. The Santa Cruz Islands are not a part of the archipelago. Geography The Solomon Is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conspecific
Biological specificity is the tendency of a characteristic such as a behavior or a biochemical variation to occur in a particular species. Biochemist Linus Pauling stated that "Biological specificity is the set of characteristics of living organisms or constituents of living organisms of being special or doing something special. Each animal or plant species is special. It differs in some way from all other species...biological specificity is the major problem about understanding life." Biological specificity within ''Homo sapiens'' ''Homo sapiens'' has many characteristics that show the biological specificity in the form of behavior and morphological traits. Morphologically, humans have an enlarged cranial capacity and more gracile features in comparison to other hominins. The reduction of dentition is a feature that allows for the advantage of adaptability in diet and survival. As a species, humans are culture dependent and much of human survival relies on the culture and soc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guadalcanal Fantail
The Guadalcanal fantail (''Rhipidura ocularis'') is a species of bird in the family Rhipiduridae. It is endemic to the island of Guadalcanal in the Solomon Islands. It was formerly considered as a subspecies of the brown fantail (now the Bougainville fantail). Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss. Taxonomy The Guadalcanal fantail was Species description, formally described in 1931 by the American ornithologist Ernst Mayr based on specimens collected on the island of Guadalcanal in the Solomon Islands. Mayr considered the taxon as a subspecies of the brown fantail (now the Bougainville fantail) and coined the trinomial name ''Rhipidura drownei ocularis''. The specific epithet is Latin meaning "of the eyes". The Guadalcanal fantail is now considered to be separate species. It is monotypic: no subspecies are recognised. References Rhipidura, Guadalcanal fantail Endemic birds of the Solomon Islands Birds of Gua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iris (anatomy)
The iris (: irides or irises) is a thin, annular structure in the eye in most mammals and birds that is responsible for controlling the diameter and size of the pupil, and thus the amount of light reaching the retina. In optical terms, the pupil is the eye's aperture, while the iris is the diaphragm (optics), diaphragm. Eye color is defined by the iris. Etymology The word "iris" is derived from the Greek word for "rainbow", also Iris (mythology), its goddess plus messenger of the gods in the ''Iliad'', because of the many eye color, colours of this eye part. Structure The iris consists of two layers: the front pigmented Wikt:fibrovascular, fibrovascular layer known as a stroma of iris, stroma and, behind the stroma, pigmented epithelial cells. The stroma is connected to a sphincter muscle (sphincter pupillae), which contracts the pupil in a circular motion, and a set of dilator muscles (dilator pupillae), which pull the iris radially to enlarge the pupil, pulling it in folds. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhipidura
Fantails are small insectivorous songbirds of the genus ''Rhipidura'' in the family (biology), family Rhipiduridae, native to Australasia, Southeast Asia and the Indian subcontinent. Most of the species are about long, specialist aerial feeders, and named as "fantails", but the Australian willie wagtail is a little larger, and, though still an expert hunter of insects on the wing, concentrates equally on terrestrial prey. The true wagtails are part of the genus ''Motacilla'' in the family Motacillidae and are not close relatives of the fantails. Taxonomy The genus '' Rhipidura '' was introduced in 1827 by the naturalists Nicholas Aylward Vigors, Nicholas Vigors and Thomas Horsfield. The type species was subsequently designated as ''Muscicapa flabellifera'' Johann Friedrich Gmelin, Gmelin, JF, 1788 by the English zoologist George Robert Gray, George Gray in 1840. This is a junior synonym of ''Muscicapa fuliginosa'' Anders Erikson Sparrman , Sparrman, 1787, the New Zealand fanta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of Bougainville Island
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 common ostrich. There are over 11,000 living species and they are split into 44 orders. More than half are passerine or "perching" birds. Birds have wings 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 furth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomy Articles Created By Polbot
280px, Generalized scheme of taxonomy Taxonomy is a practice and science concerned with classification or categorization. Typically, there are two parts to it: the development of an underlying scheme of classes (a taxonomy) and the allocation of things to the classes (classification). Originally, taxonomy referred only to the classification of organisms on the basis of shared characteristics. Today it also has a more general sense. It may refer to the classification of things or concepts, as well as to the principles underlying such work. Thus a taxonomy can be used to organize species, documents, videos or anything else. A taxonomy organizes taxonomic units known as "taxa" (singular "taxon"). Many are hierarchies. One function of a taxonomy is to help users more easily find what they are searching for. This may be effected in ways that include a library classification system and a search engine taxonomy. Etymology The word was coined in 1813 by the Swiss botanist A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
