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Green Hylia
The green hylia (''Hylia prasina'') is a monotypic genus widespread in tropical Africa, where it mostly inhabits the understory and mid-stratum of moist forest. It is a canopy insectivore which had been tentatively placed within the family of Cettiidae warblers, but in 2019 its assignment to a new family, the Hyliidae, was strongly supported. Taxonomy ''Hylia prasina'' is a monotypic songbird that has proven difficult to place within the phylogenetic tree. Connections between ''Hylia'' and other genera have been attempted by comparing DNA sequences, physical similarities and even behavioural characteristics. None of these links have been sufficiently proven to allow definite classification of the green hylia. The green hylia belongs to the order Passeriformes and the superfamily Sylvioidea, however the classification at family level is under dispute. The species is often attributed to the family Cettiidae (bush warblers) along with '' Scotocerca'', ''Erythrocercus'', ''Tesia'', ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Cassin
John Cassin (September 6, 1813 – January 10, 1869) was an American ornithologist from Pennsylvania. He worked as curator and Vice President at the Philadelphia Academy of Natural Sciences and focused on the systemic classification of the Academy's extensive collection of birds. He was one of the founders of the Delaware County Institute of Science and published several books describing 194 new species of birds. Five species of North American birds, a cicada and a mineral are named in his honor. Early life and education Cassin was born in Upper Providence Township, Pennsylvania on September 6, 1813. He was educated at the Westtown School in Westtown, Pennsylvania. His great Uncle, John Cassin, was a commodore in the U.S. Navy and served in the War of 1812. He served in the Union Army during the American Civil War and was held prisoner in the infamous Confederate Libby Prison in Richmond, Virginia. Career Cassin moved to Philadelphia in 1834 and became the head of a lith ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tesia
The tesias are a genus, ''Tesia'', of Old World warbler. Though once included in the large family (biology), family Sylviidae, more recent research placed it within a new family, Cettiidae. The four species inhabit undergrowth of montane forest in South Asia, South and Southeast Asia, where they are resident or short-range migrants. They have longish legs and appear tailless, with (seemingly) only 8 rectrices. Their simple songs are fairly loud, and their nests are typically ball-shaped. Their name is derived from ''Tisi'', the Nepali language, Nepalese name for the grey-bellied tesia (''Tesia cyaniventer''). Taxonomy The genus ''Tesia'' was erected in 1837 by the English naturalist Brian Houghton Hodgson. The name is from the Nepalese word ''Tisi'' for the grey-bellied tesia. The type species was designated as the grey-bellied tesia (''Tesia cyaniventer'') by the English zoologist George Robert Gray in 1847. The chestnut-headed tesia was formerly included in the genus. A molecula ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mitochondrial
A mitochondrion (; ) is an organelle found in the cells of most Eukaryotes, such as animals, plants and fungi. Mitochondria have a double membrane structure and use aerobic respiration to generate adenosine triphosphate (ATP), which is used throughout the cell as a source of chemical energy. They were discovered by Albert von Kölliker in 1857 in the voluntary muscles of insects. The term ''mitochondrion'' was coined by Carl Benda in 1898. The mitochondrion is popularly nicknamed the "powerhouse of the cell", a phrase coined by Philip Siekevitz in a 1957 article of the same name. Some cells in some multicellular organisms lack mitochondria (for example, mature mammalian red blood cells). A large number of unicellular organisms, such as microsporidia, parabasalids and diplomonads, have reduced or transformed their mitochondria into other structures. One eukaryote, ''Monocercomonoides'', is known to have completely lost its mitochondria, and one multicellular organism, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pholidornis
The tit hylia (''Pholidornis rushiae'') is a species of bird, monotypic within the genus ''Pholidornis''. It is found in rainforests in West and Central Africa. It had been placed in the family Cettiidae, but in 2019 its assignment to a new family, the Hyliidae, was strongly supported. Taxonomy The tit hylia was described by John Cassin in 1855 as ''Diceum Rushiæ'' based on a specimen collected from present-day Gabon. It was placed in the genus ''Pholidornis'' by Gustav Hartlaub two years later. Its generic name is derived from the Ancient Greek ''pholidos'' for scale and ''ornis'' for bird.Jobling, J. A. (2018). Key to Scientific Names in Ornithology'. In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.) (2018). ''Handbook of the Birds of the World Alive''. Lynx Edicions, Barcelona. (retrieved from www.hbw.com). Distribution and habitat It is found in Angola, Benin, Cameroon, Central African Republic, Republic of the Congo, Democratic Republic of th ... [...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] |
Estrildidae
Estrildidae, or estrildid finches, is a family of small seed-eating passerine birds of the Old World tropics and Australasia. They comprise species commonly known as munias, mannikins, firefinches, parrotfinches and waxbills. Despite the word "finch" being included in the common names of some species, they are not closely related to birds with this name in other families, such as the Fringillidae, Emberizidae or Passerellidae. They are gregarious and often colonial seed eaters with short, thick, but pointed bills. They are all similar in structure and habits, but vary widely in plumage colours and patterns. All estrildids build large, domed nests and lay five to ten white eggs. Many species build roost nests. Some of the firefinches and pytilias are hosts to the brood-parasitic indigobirds and whydahs, respectively. Most are sensitive to cold and require warm, usually tropical, habitats, although a few, such as the eastern alpine mannikin, mountain firetail, red-browed f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nectariniidae
Sunbirds and spiderhunters make up the family Nectariniidae of passerine birds. They are small, slender passerines from the Old World, usually with downward-curved bills. Many are brightly coloured, often with iridescent feathers, particularly in the males. Many species also have especially long tail feathers. Their range extends through most of Africa to the Middle East, South Asia, South-east Asia and southern China, to Indonesia, New Guinea and northern Australia. Species diversity is highest in equatorial regions. There are 145 species in 16 genera. Most sunbirds feed largely on nectar, but will also eat insects and spiders, especially when feeding their young. Flowers that prevent access to their nectar because of their shape (for example, very long and narrow flowers) are simply punctured at the base near the nectaries, from which the birds sip the nectar. Fruit is also part of the diet of some species. Their flight is fast and direct, thanks to their short wings. The sun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aegithalidae
The bushtits or long-tailed tits, are a family, Aegithalidae, of small passerine birds with long tails, compared to their size. The family contains 13 species in three genera, all but one of which are found in Eurasia. Bushtits are active birds, moving almost constantly while they forage for insects in shrubs and trees. During non-breeding season, birds live in flocks of up to 50 individuals. Several bushtit species display cooperative breeding behavior, also called helpers at the nest. Distribution and habitat All the Aegithalidae are forest birds, particularly forest edge and understory habitats. The species in the genus ''Aegithalos'' prefer deciduous or mixed deciduous forests, while the Indonesian pygmy bushtit is found mostly in montane coniferous forest. Bushtits are found in a wide range of habitats, including on occasion sagebrush steppe and other arid shrublands, but are most common in mixed woodland. Most species in this family live in mountainous habitats in and a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Membrane
A membrane is a selective barrier; it allows some things to pass through but stops others. Such things may be molecules, ions, or other small particles. Membranes can be generally classified into synthetic membranes and biological membranes. Biological membranes include cell membranes (outer coverings of cells or organelles that allow passage of certain constituents); nuclear membranes, which cover a cell nucleus; and tissue membranes, such as mucosae and serosae. Synthetic membranes are made by humans for use in laboratories and industry (such as chemical plants). This concept of a membrane has been known since the eighteenth century but was used little outside of the laboratory until the end of World War II. Drinking water supplies in Europe had been compromised by the war and membrane filters were used to test for water safety. However, due to the lack of reliability, slow operation, reduced selectivity and elevated costs, membranes were not widely exploited. The first us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warblers
Various Passeriformes (perching birds) are commonly referred to as warblers. They are not necessarily closely related to one another, but share some characteristics, such as being fairly small, vocal, and insectivorous. Sylvioid warblers These are somewhat more closely related to each other than to other warblers. They belong to a superfamily also containing Old World babblers, bulbuls, etc. * "Old World warblers", formerly all in family Sylviidae ** Leaf warblers, now in family Phylloscopidae ** Typical bush warblers, now in family Cettiidae ** Grass warblers and megalurid bush-warblers, now in family Locustellidae ** Marsh and tree warblers, now in family Acrocephalidae ** True warblers or sylviid warblers, remaining in family Sylviidae or moved into the Timaliidae ** Cisticolid warblers, family Cisticolidae * Malagasy warblers, the newly assembled family Bernieridae Passeroid warblers The two families of American warblers are part of another superfamily, which unites ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sunbirds
Sunbirds and spiderhunters make up the family Nectariniidae of passerine birds. They are small, slender passerines from the Old World, usually with downward-curved bills. Many are brightly coloured, often with iridescent feathers, particularly in the males. Many species also have especially long tail feathers. Their range extends through most of Africa to the Middle East, South Asia, South-east Asia and southern China, to Indonesia, New Guinea and northern Australia. Species diversity is highest in equatorial regions. There are 145 species in 16 genera. Most sunbirds feed largely on nectar, but will also eat insects and spiders, especially when feeding their young. Flowers that prevent access to their nectar because of their shape (for example, very long and narrow flowers) are simply punctured at the base near the nectaries, from which the birds sip the nectar. Fruit is also part of the diet of some species. Their flight is fast and direct, thanks to their short wings. The sun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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