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Eastern Bearded Greenbul
The eastern bearded greenbul (''Criniger chloronotus'') is a species of songbird in the bulbul family, Pycnonotidae. It is found from south-eastern Nigeria to Central African Republic, north-eastern Democratic Republic of the Congo, Congo and extreme north-western Angola. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical moist montane forests. Taxonomy and systematics The eastern bearded greenbul was originally described in the genus ''Hypsipetes''. Formerly, some authorities considered the eastern bearded greenbul 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 organis ... with the western bearded greenbul. Alternate names for the eastern bearded greenbul include the bearded bulbul, Congo bulbul, eastern bearded bulbul, gree ... [...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] |
Songbird
A songbird is a bird belonging to the suborder Passeri of the perching birds (Passeriformes). Another name that is sometimes seen as the scientific or vernacular name is Oscines, from Latin ''oscen'', "songbird". The Passeriformes contains 5000 or so speciesEdwards, Scott V. and John Harshman. 2013. Passeriformes. Perching Birds, Passerine Birds. Version 06 February 2013 (under construction). http://tolweb.org/Passeriformes/15868/2013.02.06 in The Tree of Life Web Project, http://tolweb.org/ ccessed 2017/12/11 found all over the world, in which the vocal organ typically is developed in such a way as to produce a diverse and elaborate bird song. Songbirds form one of the two major lineages of extant perching birds (~4000 species), the other being the Tyranni (~1000 species), which are most diverse in the Neotropics and absent from many parts of the world. The Tyranni have a simpler syrinx musculature, and while their vocalizations are often just as complex and striking as thos ... [...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] |
Habitat
In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical manifestation of its ecological niche. Thus "habitat" is a species-specific term, fundamentally different from concepts such as environment or vegetation assemblages, for which the term "habitat-type" is more appropriate. The physical factors may include (for example): soil, moisture, range of temperature, and light intensity. Biotic factors will include the availability of food and the presence or absence of predators. Every species has particular habitat requirements, with habitat generalist species able to thrive in a wide array of environmental conditions while habitat specialist species requiring a very limited set of factors to survive. The habitat of a species is not necessarily found in a geographical area, it can be the interior ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forest
A forest is an area of land dominated by trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, and ecological function. The United Nations' Food and Agriculture Organization (FAO) defines a forest as, "Land spanning more than 0.5 hectares with trees higher than 5 meters and a canopy cover of more than 10 percent, or trees able to reach these thresholds ''in situ''. It does not include land that is predominantly under agricultural or urban use." Using this definition, '' Global Forest Resources Assessment 2020'' (FRA 2020) found that forests covered , or approximately 31 percent of the world's land area in 2020. Forests are the predominant terrestrial ecosystem of Earth, and are found around the globe. More than half of the world's forests are found in only five countries (Brazil, Canada, China, Russia, and the United States). The largest share of forests (45 percent) are in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montane Forest
Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as elevation increases, causing the ecosystem to stratify. This stratification is a crucial factor in shaping plant community, biodiversity, metabolic processes and ecosystem dynamics for montane ecosystems. Dense montane forests are common at moderate elevations, due to moderate temperatures and high rainfall. At higher elevations, the climate is harsher, with lower temperatures and higher winds, preventing the growth of trees and causing the plant community to transition to montane grasslands, shrublands or alpine tundra. Due to the unique climate conditions of montane ecosystems, they contain increased numbers of endemic species. Montane ecosystems also exhibit variation in ecosystem services, which include carbon storage and water supply. Life zones As elevation increases, the climate becomes cooler, due to a decrease in a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypsipetes
__NOTOC__ ''Hypsipetes'' is a genus of bulbuls, songbirds in the family Pycnonotidae. Most of its species occur in tropical forests around the Indian Ocean. But while the genus is quite diverse in the Madagascar region at the western end of its range it does not reach the African mainland. Most ''Hypsipetes'' bulbuls are dark greyish birds with orange or red bills and feet. The feathers on top of the head are slightly elongated and usually black, and can be erected to form a short and wispy crest. Taxonomy and systematics The genus ''Hypsipetes'' was introduced in 1831 by the Irish zoologist Nicholas Aylward Vigors with ''Hypsipetes psaroides'' as the type species. This taxon is now a subspecies of the black bulbul ''Hypsipetes leucocephalus psaroides''. The genus name combines the Ancient Greek ''hupsi'' meaning "high" with ''petēs'' meaning "-flyer". Species The genus contains 19 species: * Philippine bulbul (''Hypsipetes philippinus'') * Mindoro bulbul (''Hypsipetes mind ... [...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] |
Western Bearded Greenbul
The western bearded greenbul (''Criniger barbatus'') is a species of songbird in the bulbul family, Pycnonotidae. It is found in West Africa. Its natural habitats are subtropical or tropical dry forests and subtropical or tropical moist lowland forests. Taxonomy The western bearded greenbul was formally described and illustrated in 1821 by the Dutch zoologist Coenraad Jacob Temminck from a specimen collected in Sierra Leone. He coined the binomial name ''Trichophorus barbatus''. The 5 volumes were originally issued in 102 ''livraison'' (parts), 1820-1839. For the dates see: Formerly, some authorities considered the eastern bearded greenbul as conspecific with the western bearded greenbul. Subspecies Two subspecies are recognized: * ''C. b. barbatus'' (Temminck Coenraad Jacob Temminck (; 31 March 1778 – 30 January 1858) was a Dutch aristocrat, zoologist and museum director. Biography Coenraad Jacob Temminck was born on 31 March 1778 in Amsterdam in the Dutch Republic. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alophoixus Flaveolus
The white-throated bulbul (''Alophoixus flaveolus'') is a species of songbird in the bulbul family, Pycnonotidae. It is found in south-eastern Asia from the eastern Himalayas to Myanmar and western Thailand. Its natural habitat is subtropical or tropical moist lowland forests. Taxonomy and systematics The white-throated bulbul was originally described in the genus ''Trichophorus'' (a synonym for ''Criniger'') until moved to the genus ''Alophoixus'' in 2009. Alternate names for the white-throated bulbul include the ashy-fronted bearded bulbul, ashy-fronted bulbul, white-throated bearded bulbul, and yellow-bellied bulbul. The alternate names 'ashy-fronted bulbul' and 'yellow-bellied bulbul' should not be confused with species of the same name ('' Pycnonotus cinereifrons'' and ''Alophoixus phaeocephalus'' respectively). The common name 'white-throated bulbul' is also used as an alternate name for each of the white-throated greenbul, eastern bearded greenbul, puff-throated bulbul and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Streaked Bulbul
The streaked bulbul (''Ixos malaccensis''), or green-backed bulbul, is a songbird species in the bulbul family (Pycnonotidae). It is found on the Malay Peninsula, Sumatra, and Borneo. Its natural habitat is subtropical or tropical moist lowland forests. It is becoming rare due to habitat loss.BLI (2008) Taxonomy and systematics The current placement of the streaked bulbul in the genus ''Ixos'' is not fixed with any certainty. As the affiliations of the Javan bulbul (the type species of the genus) remain to be re-studied, it is not yet clear if the streaked bulbul should instead be placed in the genus ''Hemixos'' or possibly placed in a new genus.Gregory (2000), Moyle & Marks (2006) Both the alternate name 'green-backed bulbul' and the synonym ''Hypsipetes malaccensis'' are also shared with the eastern bearded greenbul. The name 'streaked bulbul' is also used as an alternate name for the Javan bulbul. Footnotes References * Gregory, Steven M. (2000): Nomenclature of the Hypsipet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Criniger
''Criniger'' is a genus of songbirds in the bulbul family, Pycnonotidae. The species of ''Criniger'' are found in western and central Africa. Taxonomy The genus ''Criniger'' was introduced in 1820 by the Dutch zoologist Coenraad Jacob Temminck, the name ''Criniger'' is Latin for "long-haired" (from ''crinis'', meaning "hair" and ''gerere'', meaning "to carry"). A year later Temminck designated the type species as the western bearded greenbul. Species The genus contains five species: * Western bearded greenbul (''Criniger barbatus'') * Eastern bearded greenbul (''Criniger chloronotus'') * Red-tailed greenbul (''Criniger calurus'') * White-bearded greenbul (''Criniger ndussumensis'') * Yellow-bearded greenbul (''Criniger olivaceus'') Former species Formerly, some authorities also considered the following species (or subspecies) as species within the genus ''Criniger'': * Striated bulbul (as ''Tricophorus striatus'' or ''Criniger striatus'') * Streak-eared bulbul (as ''Crinig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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