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Ruby-throated Bulbul
The ruby-throated bulbul (''Rubigula dispar''), or yellow bulbul, is a member of the bulbul family of passerine birds. It is found on Sumatra, Java, and Bali. Taxonomy and systematics The ruby-throated bulbul was originally described in the genus ''Turdus'' and later moved to genus ''Pycnonotus''. ''Pycnonotus'' was found to be polyphyletic in recent molecular phylogenetic studies and five bulbul species, including the ruby-throated bulbul, moved to ''Rubigula''. Until 2008, the ruby-throated bulbul was considered as 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 organ ... with the black-capped, black-crested, flame-throated and Bornean bulbuls. Some authorities have considered the ruby-throated bulbul to be a subspecies of the black-capped bulbul. Description It i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Horsfield
Thomas Horsfield (May 12, 1773 – July 24, 1859) was an American physician and natural history, naturalist who worked extensively in Indonesia, describing numerous species of plants and animals from the region. He was later a curator of the East India Company Museum in London. Early life Horsfield was born in Bethlehem, Pennsylvania, and studied medicine at the University of Pennsylvania. He was the grandson of Timothy Horsfield, Sr. (1708-1773), who was born in Liverpool and emigrated to New York in 1725. In New York, his brother Isaac and he ran a butcher shop. The Horsfield family converted from the Church of England to Moravianism, a Protestant denomination with a strong emphasis on education. In 1748, Horsfield, Sr. applied for permission to reside in Bethlehem, Pennsylvania. He, however, moved only his family to Bethlehem and joined them the next year. When Northampton County was created in 1752, he was made a justice of peace by Governor Hamilton. In 1763 he was commissio ... [...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 so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of Java
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. Bird ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of Sumatra
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. Bird ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rubigula
''Rubigula'' is a genus of Asian passerine birds in the bulbul family, Pycnonotidae. Taxonomy The genus ''Rubigula'' was introduced in 1845 by the English zoologist Edward Blyth. The type species was designated as the ruby-throated bulbul by George Robert Gray in 1855. The name combines the Medieval Latin ''rubinus'' meaning "ruby" with Latin ''gula'' meaning "throat". This genus was formerly synonymized with the genus ''Pycnonotus''. A molecular phylogenetic study of the bulbul family published in 2017 found that ''Pycnonotus'' was polyphyletic A polyphyletic group is an assemblage of organisms or other evolving elements that is of mixed evolutionary origin. The term is often applied to groups that share similar features known as homoplasies, which are explained as a result of converg .... In the revision to the generic classification five species were moved from ''Pycnonotus'' to ''Rubigula''. Species It has five species: References Rubigula Taxa named by Edwar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bornean Bulbul
The Bornean bulbul (''Rubigula montis'') is a member of the bulbul family of passerine birds. It is endemic to the island of Borneo. Taxonomy and systematics The Bornean bulbul was previously placed in genus ''Pycnonotus''. This genus was found to be polyphyletic in recent molecular phylogenetic studies and five bulbul species, including the Bornean bulbul, moved to ''Rubigula''. Until 2008, the Bornean bulbul was considered as conspecific with the black-capped, black-crested, ruby-throated and flame-throated bulbul The flame-throated bulbul (''Rubigula gularis'') is a member of the bulbul family of passerine birds and the state bird of Goa. It is found only in the forests of the Western Ghats in southern India. Formerly included as a subspecies of ''Pycno ...s. Some authorities have considered the Bornean bulbul to be a subspecies of the black-capped bulbul. Description The Bornean bulbul has a black crest, yellow throat, and brownish eyes. Distribution and habitat T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flame-throated Bulbul
The flame-throated bulbul (''Rubigula gularis'') is a member of the bulbul family of passerine birds and the state bird of Goa. It is found only in the forests of the Western Ghats in southern India. Formerly included as a subspecies of ''Pycnonotus flaviventris'' it has since been elevated to the status of a full species. They are olive-backed with yellow undersides, a triangular orange-red throat and a white iris that stands out against the contrasting black head. They are usually seen foraging in groups in the forest canopy for berries and small insects. They have a call often with two or three tinkling notes that can sound similar to those produced by the red-whiskered bulbul. The species has been referred to in the past by names such as ruby-throated bulbul and black-headed bulbul, but these are ambiguous and could apply to other species such as '' Rubigula flaviventris'' and '' R. dispar''. Taxonomy and systematics The species was described by John Gould in December 1835 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black-crested Bulbul
The black-crested bulbul (''Rubigula flaviventris'') is a member of the bulbul family of passerine birds. It is found from the Indian subcontinent to southeast Asia. Taxonomy and systematics The black-crested bulbul was originally described in the genus ''Vanga'' and later moved to genus ''Pycnonotus''. ''Pycnonotus'' was found to be polyphyletic in recent molecular phylogenetic studies and five bulbul species, including the black-crested bulbul, moved to ''Rubigula''. Until 2008, the black-crested bulbul was considered as conspecific with the black-capped, ruby-throated, flame-throated and Bornean bulbuls. Subspecies Eight subspecies are recognized: * Black-crested yellow bulbul (''P. f. flaviventris'') - ( Tickell, 1833): Found from Nepal, northern and eastern India (including Pachmarhi in central India) to southern China and central Myanmar * ''P. f. vantynei'' - Deignan, 1948: Found from eastern and southern Myanmar to southern China and northern Indochina ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black-capped Bulbul
The black-capped bulbul (''Rubigula melanictera''), or black-headed yellow bulbul, is a member of the bulbul family of passerine birds. It is endemic to Sri Lanka. Taxonomy The black-capped bulbul was formally described in 1789 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's ''Systema Naturae''. He placed it with the flycatchers in the genus ''Muscicapa'' and coined the binomial name ''Muscicapa melanictera''. The specific epithet combines the Ancient Greek ''melas'' meaning "black" with ''ikteros'' meaning "jaundice-yellow". Gmelin based his description on the "yellow-breasted fly-catcher" from Sri Lanka that had been described and illustrated in 1776 by the English naturalist Peter Brown. The black-capped bulbul was formerly placed in the genus ''Pycnonotus''. A molecular phylogenetic study of the bulbul family published in 2017 found that ''Pycnonotus'' was polyphyletic. In the revision to the generic classification t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyphyletic
A polyphyletic group is an assemblage of organisms or other evolving elements that is of mixed evolutionary origin. The term is often applied to groups that share similar features known as homoplasies, which are explained as a result of convergent evolution. The arrangement of the members of a polyphyletic group is called a polyphyly .. ource for pronunciation./ref> It is contrasted with monophyly and paraphyly. For example, the biological characteristic of warm-bloodedness evolved separately in the ancestors of mammals and the ancestors of birds; "warm-blooded animals" is therefore a polyphyletic grouping. Other examples of polyphyletic groups are algae, C4 photosynthetic plants, and edentates. Many taxonomists aim to avoid homoplasies in grouping taxa together, with a goal to identify and eliminate groups that are found to be polyphyletic. This is often the stimulus for major revisions of the classification schemes. Researchers concerned more with ecology than with systema ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulbul
The bulbuls are members of a family, Pycnonotidae, of medium-sized passerine songbirds, which also includes greenbuls, brownbuls, leafloves, and bristlebills. The family is distributed across most of Africa and into the Middle East, tropical Asia to Indonesia, and north as far as Japan. A few insular species occur on the tropical islands of the Indian Ocean. There are 160 species in 32 genera. While different species are found in a wide range of habitats, the African species are predominantly found in rainforest, whereas Asian bulbuls are predominantly found in more open areas. Taxonomy The family Pycnonotidae was introduced by the English zoologist George Robert Gray in 1840 as a subfamily Pycnonotinae of the thrush family Turdidae. The Arabic word ''bulbul'' (بلبل) is sometimes used to refer to the "nightingale" as well as the bulbul, but the English word ''bulbul'' refers to the birds discussed in this article. A few species that were previously considered to be memb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pycnonotus
''Pycnonotus'' is a genus of frugivorous passerine birds in the bulbul family Pycnonotidae. Taxonomy and systematics The genus ''Pycnonotus'' was introduced by the German zoologist Friedrich Boie in 1826 with the Cape bulbul as the type species. The name of the genus combines the Ancient Greek words ''puknos'' "thick" or "compact" and ''-nōtos'' "-backed". The genus contains the following 32 species: * Cream-vented bulbul (''Pycnonotus simplex'') * Olive-winged bulbul (''Pycnonotus plumosus'') * Asian red-eyed bulbul (''Pycnonotus brunneus'') * Straw-headed bulbul (''Pycnonotus zeylanicus'') * Cream-eyed bulbul (''Pycnonotus pseudosimplex'') * Ashy-fronted bulbul (''Pycnonotus cinereifrons'') * White-browed bulbul (''Pycnonotus luteolus'') * Ayeyarwady bulbul (''Pycnonotus blanfordi'') * Streak-eared bulbul (''Pycnonotus conradi'') * Stripe-throated bulbul (''Pycnonotus finlaysoni'') * Flavescent bulbul (''Pycnonotus flavescens'') * Aceh bulbul (''Pycnonotus snouckaerti' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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