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Amblyospiza Albifrons
The thick-billed weaver (''Amblyospiza albifrons''), or grosbeak weaver, is a distinctive and bold species of Ploceidae, weaver bird that is native to the Afrotropical realm, Afrotropics. It belongs to the monotypic genus ''Amblyospiza'' and subfamily Amblyospizinae. They have particularly strong mandibles, which are employed to extricate the seeds in Nut (fruit), nutlets and drupes, and their songs are comparatively unmusical and harsh. Their colonial nests are readily distinguishable from those of other weavers, due to their form and placement, and the fine strands used in their construction. They habitually fan and flick their tails. Taxonomy and systematics The generic name ''Amblyospiza'' was coined by Carl Jakob Sundevall in 1850 and means "blunt, finch", referencing the very large bill, while the specific name ''albifrons'' refers white forehead of the males. The thick-billed weaver was formally species description, described as ''Pyrrhula albifrons'' in 1831 by the Irish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Jakob Sundevall
Carl Jakob Sundevall (22 October 1801, Högestad – 2 February 1875) was a Swedish zoologist. Sundevall studied at Lund University, where he became a Ph.D. in 1823. After traveling to East Asia, he studied medicine, graduating as Doctor of Medicine in 1830. He was employed at the Swedish Museum of Natural History, Stockholm from 1833, and was professor and keeper of the vertebrate section from 1839 to 1871. He wrote ''Svenska Foglarna'' (1856–87) which described 238 species of birds observed in Sweden. He classified a number of birds collected in southern Africa by Johan August Wahlberg. In 1835, he developed a phylogeny for the birds based on the muscles of the hip and leg that contributed to later work by Thomas Huxley. He then went on to examine the arrangement of the deep plantar tendons in the bird's foot. This latter information is still used by avian taxonomists. Sundevall was also an entomologist and arachnologist, for which (for the latter field) in 1833 he publish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polygynous
Polygyny (; from Neoclassical Greek πολυγυνία (); ) is the most common and accepted form of polygamy around the world, entailing the marriage of a man with several women. Incidence Polygyny is more widespread in Africa than in any other continent. Some scholars see the slave trade's impact on the male-to-female sex ratio as a key factor in the emergence and fortification of polygynous practices in regions of Africa. Polygyny is most common in a region known as the "polygamy belt" in West Africa and Central Africa, with the countries estimated to have the highest polygamy prevalence in the world being Burkina Faso, Mali, Gambia, Niger and Nigeria. In the region of sub-Saharan Africa, polygyny is common and deeply rooted in the culture, with 11% of the population of sub-Saharan Africa living in such marriages (25% of the Muslim population and 3% of the Christian population, as of 2019). Polygyny is especially widespread in West Africa, with the countries estimated to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of Sub-Saharan Africa
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] |
Integrated Taxonomic Information System
The Integrated Taxonomic Information System (ITIS) is an American partnership of federal agencies designed to provide consistent and reliable information on the taxonomy of biological species. ITIS was originally formed in 1996 as an interagency group within the US federal government, involving several US federal agencies, and has now become an international body, with Canadian and Mexican government agencies participating. The database draws from a large community of taxonomic experts. Primary content staff are housed at the Smithsonian National Museum of Natural History and IT services are provided by a US Geological Survey facility in Denver. The primary focus of ITIS is North American species, but many biological groups exist worldwide and ITIS collaborates with other agencies to increase its global coverage. Reference database ITIS provides an automated reference database of scientific and common names for species. As of May 2016, it contains over 839,000 scientific names, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phyllostachys Aurea
''Phyllostachys aurea'' is a species of bamboo, and is of the 'running bamboo' type, belonging to the diverse Bambuseae tribe. It is native to Fujian and Zhejiang in China. It is commonly known by the names fishpole bamboo, golden bamboo, monk's belly bamboo, and fairyland bamboo (Australia). Cultivation ''Phyllostachis aurea'' is cultivated as an ornamental plant for gardens. In the United States, Australia and Italy, it is considered an invasive species that crowds out native species and becomes a monoculture that is difficult to remove. It is a cold-hardy bamboo, performing well in USDA zones 6 to 10, (Connecticut to Florida). In the UK it has gained the Royal Horticultural Society's Award of Garden Merit. It is a tall evergreen species growing to tall by broad. Like most bamboos it can become invasive if kept in warm, moist conditions in good quality soil with access to full sunlight. It is a prohibited species in New York. Cultivars Cultivars include: * ''P. aurea'' 'Flav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swamp
A swamp is a forested wetland.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p. Swamps are considered to be transition zones because both land and water play a role in creating this environment. Swamps vary in size and are located all around the world. The water of a swamp may be fresh water, brackish water, or seawater. Freshwater swamps form along large rivers or lakes where they are critically dependent upon rainwater and seasonal flooding to maintain natural water level fluctuations.Hughes, F.M.R. (ed.). 2003. The Flooded Forest: Guidance for policy makers and river managers in Europe on the restoration of floodplain forests. FLOBAR2, Department of Geography, University of Cambridge, Cambridge, UK. 96 p. Saltwater swamps are found along tropical and subtropical coastlines. Some swamps have hammock (ecology), hammocks, or dry-land protrusions, covered by aquatic vegetation, or vegetation that tolerates ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brown Firefinch
The brown firefinch (''Lagonosticta nitidula'') is a common species of estrildid finch found in Southern Africa. It has an estimated global extent of occurrence of 1,300,000 km2. It is found in Angola, The Democratic Republic of the Congo, Zambia, southern Tanzania and northern areas of Namibia, Botswana and Zimbabwe. The IUCN has classified the species as being of least concern A least-concern species is a species that has been categorized by the International Union for Conservation of Nature (IUCN) as evaluated as not being a focus of species conservation because the specific species is still plentiful in the wild. T .... References External links Species text in ''The Atlas of Southern African Birds'' brown firefinch [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orange-breasted Waxbill
The orange-breasted waxbill (''Amandava subflava''), also known as the zebra waxbill, is a small (approximately 9 cm long) sparrow-like bird with a reddish iris, orange breast, red bill and dark olive-green plumage. The male has a red rump, dark bars on the whitish flank and a scarlet eyebrow stripe. The female is duller and smaller than male; it also lacks the male's red eyebrow. The orange-breasted waxbill is found in grassland and savannahs south of the Sahara in Africa. It has an estimated global extent of occurrence of 10,000,000 km2. This species is also introduced to other countries, e.g., Kuwait. Its diet consists mainly of seeds, insects and shoots. The female usually lays between four and six eggs in an oval-shaped nest made from grass. These nests are often the old nests of red-collared widowbirds. Widespread and common throughout its large range, the orange-breasted waxbill is evaluated to be of least concern on the IUCN Red List of Threatened Species. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nile Monitor
The Nile monitor (''Varanus niloticus'') is a large member of the monitor family (Varanidae) found throughout most of Sub-Saharan Africa and along the Nile, with invasive populations in North America. The population in West African forests and savannahs is sometimes recognized as a separate species, the West African Nile monitor (''V. stellatus'').Dowell, S.A, D.M. Portik, V. de Buffrenil, I Ineich, E Greenbaum, S.O. Kolokotronis and E.R. Hekkala. 2016. Molecular data from contemporary and historical collections reveal a complex story of cryptic diversification in the Varanus (Polydaedalus) niloticus Species Group. Molecular Phylogenetics and Evolution 94(Part B): 591-604. It is one of the largest lizards in the world reaching and even surpassing the perentie by size. Other common names include the African small-grain lizard, as well as iguana and various forms derived from it, such as guana, water leguaan or river leguaan (leguan, leguaan, and likkewaan mean monitor lizard in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
House Crow
The house crow (''Corvus splendens''), also known as the Indian, greynecked, Ceylon or Colombo crow, is a common bird of the crow family that is of Asian origin but now found in many parts of the world, where they arrived assisted by shipping. It is between the jackdaw and the carrion crow in size ( in length) but is slimmer than either. The forehead, crown, throat and upper breast are a richly glossed black, whilst the neck and breast are a lighter grey-brown in colour. The wings, tail and legs are black. There are regional variations in the thickness of the bill and the depth of colour in areas of the plumage. Taxonomy The nominate race ''C. s. splendens'' is found in Pakistan, India, Nepal and Bangladesh and has a grey neck collar. The subspecies ''C. s. zugmayeri'' is found in the dry parts of South Asia and Iran and has a very pale neck collar. The subspecies ''C. s. protegatus'' is found in southern India, the Maldives (sometimes separated as ''maledivicus'') and Sri Lanka ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White-browed Coucal
The white-browed coucal or lark-heeled cuckoo (''Centropus superciliosus''), is a species of cuckoo in the family Cuculidae. It is found in sub-Saharan Africa. It inhabits areas with thick cover afforded by rank undergrowth and scrub, including in suitable coastal regions. Burchell's coucal is sometimes considered a subspecies. Description The white-browed coucal is a medium-sized species growing to in length. The sexes are similar, adults having a blackish crown and nape, a white supercilium, rufous-brown back, chestnut wings, blackish rump and black tail, glossed with green, with a white tip. The underparts are creamy-white, the eyes red, the beak black, and the legs and feet greyish-black or black. Juveniles have rufous streaking on the crown, a faint buff supercilium, barred upper parts and darker underparts. Distribution The white-browed coucal is native to eastern and southern Africa, and the southwestern part of the Arabian Peninsula. Its range includes Angola, Botswa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pemba Island
Pemba Island ( ar, الجزيرة الخضراء ''al-Jazīra al-khadrā'', literally "The Green Island"; sw, Pemba kisiwa) is a Tanzanian island forming part of the Zanzibar Archipelago, lying within the Swahili Coast in the Indian Ocean. Geography file:Map of Zanzibar Archipelago-en.svg, left, The main islands of the Zanzibar Archipelago: Unguja (left) and Pemba (right) With a land area of it is situated about to the north of Unguja, the largest island of the archipelago. In 1964, Zanzibar was united with the former colony of Tanganyika (1961–1964), Tanganyika to form Tanzania. It lies east of mainland Tanzania, across the Pemba Channel. Together with Mafia Island (south of Unguja), these islands form the Spice Islands (not to be confused with the Maluku Islands of Indonesia). Most of the island, which is hillier and more fertile than Unguja, is dominated by small scale farming. There is also large scale farming of cash crops such as cloves. In previous years, the islan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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