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Streak-backed Antshrike
The streak-backed antshrike (''Thamnophilus insignis'') is a species of bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is found in Brazil, Guyana, and Venezuela. Taxonomy and systematics The streak-backed antshrike has two subspecies, the nominate ''T. i. insignis'' ( Salvin & Godman, 1884) and ''T. i. nigrifrontalis'' ( Phelps, WH & Phelps, WH Jr, 1947). The streak-backed and the Acre antshrike (''T. divisorius'') are sister species.Brumfield, R.T. and Edwards, S.V. (2007). "Evolution into and out of the Andes: a Bayesian analysis of historical diversification in ''Thamnophilus'' antshrikes". Evolution 61(2): 346–367. Description The streak-backed antshrike is long and weighs . Members of genus ''Thamnophilus'' are largish members of the antbird family; all have stout bills with a hook like those of true shrikes. This species exhibits slight sexual dimorphism. Adult males of the nominate subspecies have a black crown and nape with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Smit
Joseph Smit (18 July 1836 – 4 November 1929) was a Dutch zoological illustrator. L.B. Holthuis, Leiden, (1958, 1995) ''Rijksmuseum van Natuurlijke Historie, 1820 - 1958''. page 47reprint manuscript, PDF Background Smit was born in Lisse. He received his first commission from Hermann Schlegel at the Leiden Museum to work on the lithographs for a book on the birds of the Dutch East Indies. In 1866 he was invited to Britain by Philip Sclater to do the lithography for Sclater's ''Exotic Ornithology''; he prepared a hundred images for the book. He also did the lithography for his friend Joseph Wolf's ''Zoological Sketches'', as well as Daniel Giraud Elliot's monographs on the Phasianidae and Paradisaeidae. Beginning in the 1870s, he worked on the ''Catalogue of the Birds in the British Museum'' (1874–1898, edited by Richard Bowdler Sharpe), and later on Lord Lilford's ''Coloured Figures of the Birds of the British Islands''. Smit contributed illustrations to John Gou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tepui
A tepui , or tepuy (), is a table-top mountain or mesa found in South America, especially in Venezuela and western Guyana. The word tepui means "house of the gods" in the native tongue of the Pemon, the indigenous people who inhabit the Gran Sabana. Tepuis tend to be found as isolated entities rather than in connected ranges, which makes them the host of a unique array of endemic plant and animal species. Some of the most outstanding tepuis are Auyantepui, Autana, Neblina, and Mount Roraima. They are typically composed of sheer blocks of Precambrian quartz arenite sandstone that rise abruptly from the jungle, giving rise to spectacular natural scenery. Auyantepui is the source of Angel Falls, the world's tallest waterfall. Morphology These table-top mountains are the remains of a large sandstone plateau that once covered the granite basement complex between the north border of the Amazon Basin and the Orinoco, between the Atlantic coast and the Rio Negro. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Osbert Salvin
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the intro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Described In 1884
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] |
Birds Of The Tepuis
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] |
Thamnophilus
''Thamnophilus'' is a genus of antbird in the antbird family, Thamnophilidae. The species in this genus are commonly known as antshrikes. They are insectivores that feed by gleaning prey from foliage and are found in the Neotropics. The genus ''Thamnophilus'' was introduced by the French ornithologist Louis Vieillot in 1816. The name combines the Ancient Greek words ''thamnos'' "bush" and ''philos'' "loving". The type species was subsequently designated as the barred antshrike. The genus contains the following species: * Collared antshrike, ''Thamnophilus bernardi'' * Black-backed antshrike, ''Thamnophilus melanonotus'' * Band-tailed antshrike, ''Thamnophilus melanothorax'' * Barred antshrike, ''Thamnophilus doliatus'' * Chapman's antshrike, ''Thamnophilus zarumae'' * Bar-crested antshrike, ''Thamnophilus multistriatus'' * Chestnut-backed antshrike, ''Thamnophilus palliatus'' * Lined antshrike, ''Thamnophilus tenuepunctatus'' * Black-hooded antshrike, ''Thamnophilus brid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IUCN
The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natural resources. It is involved in data gathering and analysis, research, field projects, advocacy, and education. IUCN's mission is to "influence, encourage and assist societies throughout the world to conserve nature and to ensure that any use of natural resources is equitable and ecologically sustainable". Over the past decades, IUCN has widened its focus beyond conservation ecology and now incorporates issues related to sustainable development in its projects. IUCN does not itself aim to mobilize the public in support of nature conservation. It tries to influence the actions of governments, business and other stakeholders by providing information and advice and through building partnerships. The organization is best known to the wider ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mixed-species Feeding Flock
A mixed-species feeding flock, also termed a mixed-species foraging flock, mixed hunting party or informally bird wave, is a flock of usually insectivorous birds of different species that join each other and move together while foraging. These are different from feeding aggregations, which are congregations of several species of bird at areas of high food availability. While it is currently unknown how mixed-species foraging flocks originate, researchers have proposed a few mechanisms for their initiation. Many believe that nuclear species play a vital role in mixed-species flock initiation. Additionally, the forest structure is hypothesized to play a vital role in these flocks' formation. In Sri Lanka, for example, vocal mimicry by the greater racket-tailed drongo might have a key role in the initiation of mixed-species foraging flocks, while in parts of the American tropics packs of foraging golden-crowned warblers might play the same role. Composition Mixed-species foraging ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthropod
Arthropods (, (gen. ποδός)) are invertebrate animals with an exoskeleton, a Segmentation (biology), segmented body, and paired jointed appendages. Arthropods form the phylum Arthropoda. They are distinguished by their jointed limbs and Arthropod cuticle, cuticle made of chitin, often Mineralization (biology), mineralised with calcium carbonate. The arthropod body plan consists of segments, each with a pair of appendages. Arthropods are bilaterally symmetrical and their body possesses an exoskeleton, external skeleton. In order to keep growing, they must go through stages of moulting, a process by which they shed their exoskeleton to reveal a new one. Some species have wings. They are an extremely diverse group, with up to 10 million species. The haemocoel, an arthropod's internal cavity, through which its haemolymph – analogue of blood – circulates, accommodates its interior Organ (anatomy), organs; it has an open circulatory system. Like their exteriors, the internal or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brocchinia
''Brocchinia'' is a genus of the botanical family Bromeliaceae, and is the sole genus of the subfamily Brocchinioideae, containing 20 species. The genus is named for Giovanni Battista Brocchi, Italian naturalist (1772–1826). ''Brocchinia'' species are native primarily to the ancient Guayana Shield in southern Venezuela and Guyana, with some species extending into Colombia and northern Brazil. Its species are generally restricted to areas of sand and sandstone of the Roraima Formation; a few occur on granite.Givnish TJ, Burkhardt EL, Happel RE, Weintraub JW. 1985. Carnivory in the bromeliad ''Brocchinia reducta'', with a cost/benefit model for the general restriction of carnivorous plants to sunny, moist, nutrient-poor habitats. ''American Naturalist'' 124: 479-497. Based on chloroplast DNA sequence variation, ''Brocchinia'' appears to be sister to all other bromeliads.Givnish TJ, Millam KC, Berry PE, Sytsma KJ. 2007. Phylogeny, adaptive radiation, and historical biogeogra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clusia
''Clusia'' is the type genus of the plant family Clusiaceae. Comprising 300-400 species, it is native to the tropics of the Americas. The genus is named by Carl Linnaeus in honor of the botanist Carolus Clusius. The closest relatives of ''Clusia'' are the neotropical genera '' Chrysochlamys'', '' Tovomita'', '' Dystovomita'' and '' Tovomitopsis''. Together with ''Clusia'', these genera form the tribe Clusieae, where the fruit is a fleshy capsule with arillate seeds. The distribution ranges from the Florida Keys and southern Mexico to southernmost Brazil, and from near sea level to at least 3500 m altitude in the northern Andes. Species of ''Clusia'' are a characteristic component of a number of Neotropical vegetation types, and may even be dominant, as is often seen in montane forests of the Greater Antilles. Most species are found in lowland or montane rainforests, but some occur in drier habitats such as the restingas of Brazil, caribbean coastal scrub and dry interan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melastoma
''Melastoma'' is a genus in the family Melastomataceae. It has over 100 species distributed around Southeast Asia, India, north to Japan, south to Australia and the Pacific Islands. The number of species should probably be reduced according to some sources. Many species have been planted around the world for the aesthetic value of their bright purple flowers. Species in this genus are native to temperate and tropical Asia, Seychelles, Pacific and Australasia. Several have the capacity to become invasive species, in Hawaii and other areas. Species , ''Plants of the World Online'' (PoWO) accepted the following species. An additional species, ''Melastoma malabituin'', was described in 2020. * '' Melastoma aculeolatum'' Bakh.f. * ''Melastoma affine'' D.Don * '' Melastoma ansowii'' K.M.Wong * '' Melastoma apiense'' K.M.Wong * ''Melastoma ariffinii'' K.M.Wong * '' Melastoma ashtonii'' K.M.Wong * ''Melastoma atrofuscum'' Bakh.f. * '' Melastoma aureum'' Bakh.f. * '' Melastoma bari ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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