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Sudan Golden Sparrow
The Sudan golden sparrow (''Passer luteus'') is a small species of bird in the sparrow family found in sub-Saharan Africa. It is a famous cage bird, and in aviculture, it is known as the golden song sparrow. The Arabian golden sparrow and this species are sometimes considered one species, as the "golden sparrow". Taxonomy and systematics This species was first described by Martin Lichtenstein in 1823, as ''Fringilla lutea'', from a specimen collected at Dongola, Sudan. Since then it has generally been placed in the genus ''Passer''. The species name ''luteus'' means saffron yellow in Latin. The two golden sparrows are very similar, and have often been treated as the same species. Both are similar to the chestnut sparrow, and all three may once have been only clinally different. The male Arabian golden sparrow is almost entirely gold-coloured, the male chestnut sparrow is mostly chestnut, and the male Sudan golden sparrow is intermediate. British ornithologist Richard Meinertz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Aviary
The National Aviary, located in Pittsburgh, Pennsylvania, Pittsburgh, Pennsylvania, is the only independent indoor nonprofit aviary in the United States. It is also the country's largest aviary, and the only one accorded honorary "National" status by the United States Congress. The aviary is home to more than 500 birds representing more than 150 species, and is a member of the Association of Zoos and Aquariums (AZA). Location and features The National Aviary is located at 700 Arch Street on Pittsburgh, Pennsylvania, Pittsburgh's North Side (Pittsburgh), Northside, within Allegheny Commons West Park, Pittsburgh, West Park in the Allegheny Center (Pittsburgh), Allegheny Center neighborhood. The National Aviary is open daily except Thanksgiving Day, Christmas Eve, and Christmas. Although some of the birds must be fed in private, almost all feedings (both vegetarian and carnivorous) are scheduled to be viewable by visitors. Since 1999, annual attendance has consistently topped 100, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subgenus
In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International Code of Zoological Nomenclature, a subgeneric name can be used independently or included in a species name, in parentheses, placed between the generic name and the specific epithet: e.g. the tiger cowry of the Indo-Pacific, ''Cypraea'' (''Cypraea'') ''tigris'' Linnaeus, which belongs to the subgenus ''Cypraea'' of the genus ''Cypraea''. However, it is not mandatory, or even customary, when giving the name of a species, to include the subgeneric name. In the International Code of Nomenclature for algae, fungi, and plants (ICNafp), the subgenus is one of the possible subdivisions of a genus. There is no limit to the number of divisions that are permitted within a genus by adding the prefix "sub-" or in other ways as long as no confusion can result. Article 4 The secondary ranks of section and series are subordinate to subgenus. An example is ''Banksia'' subg. ''Isostylis'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mealworm
Mealworms are the larval form of the yellow mealworm beetle, ''Tenebrio molitor'', a species of darkling beetle. Like all holometabolic insects, they go through four life stages: egg, larva, pupa, and adult. Larvae typically measure about or more, whereas adults are generally between in length. Reproduction The mealworm beetle breeds prolifically. Males insert sperm packets with their aedeagus. Within a few days the female burrows into soft ground and lays eggs. Over her lifespan, a female will, on average, lay about 500 eggs. After 4 to 19 days the eggs hatch. During the larval stage, the mealworms feed on vegetation and dead insects and molt between each larval stage, or instar (9 to 20 instars). After the final molt, they pupate. The new pupa is whitish and turns brown over time. After 3 to 30 days, depending on environmental conditions such as temperature, it emerges as an adult beetle. Sex pheromones A sex pheromone released by male mealworms has been identified. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foxtail Millet
Foxtail millet, scientific name ''Setaria italica'' (synonym ''Panicum italicum'' L.), is an annual grass grown for human food. It is the second-most widely planted species of millet, and the most grown millet species in Asia. The oldest evidence of foxtail millet cultivation was found along the ancient course of the Yellow River in Cishan, China, carbon dated to be from around 8,000 years before present. Foxtail millet has also been grown in India since antiquity. Other names for the species include dwarf setaria, foxtail bristle-grass, giant setaria, green foxtail, Italian millet, German millet, and Hungarian millet. Description Foxtail millet is an annual grass with slim, vertical, leafy stems which can reach a height of . The seedhead is a dense, hairy panicle long. The small seeds, around in diameter, are encased in a thin, papery hull which is easily removed in threshing. Seed color varies greatly between varieties. File:Food grain foxtail millet.jpg, Seeds of foxt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Millet
Millets () are a highly varied group of small-seeded grasses, widely grown around the world as cereal crops or grains for fodder and human food. Most species generally referred to as millets belong to the tribe Paniceae, but some millets also belong to various other taxa. Millets are important crops in the semiarid tropics of Asia and Africa (especially in India, Mali, Nigeria, and Niger), with 97% of millet production in developing countries. This crop is favored due to its productivity and short growing season under dry, high-temperature conditions. Millets are indigenous to many parts of the world. The most widely grown millets are sorghum and pearl millets, which are important crops in India and parts of Africa. Finger millet, proso millet, and foxtail millet are also important crop species. Millets may have been consumed by humans for about 7,000 years and potentially had "a pivotal role in the rise of multi-crop agriculture and settled farming societies." Descript ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Khartoum
Khartoum or Khartum ( ; ar, الخرطوم, Al-Khurṭūm, din, Kaartuɔ̈m) is the capital of Sudan. With a population of 5,274,321, its metropolitan area is the largest in Sudan. It is located at the confluence of the White Nile, flowing north from Lake Victoria, and the Blue Nile, flowing west from Lake Tana in Ethiopia. The place where the two Niles meet is known as ''al-Mogran'' or ''al-Muqran'' (; English: "The Confluence"). From there, the Nile continues north towards Egypt and the Mediterranean Sea. Divided by these two parts of the Nile, Khartoum is a tripartite metropolis with an estimated population of over five million people, consisting of Khartoum proper, and linked by bridges to Khartoum North ( ) and Omdurman ( ) to the west. Khartoum was founded in 1821 as part of Egypt, north of the ancient city of Soba. While the United Kingdom exerted power over Egypt, it left administration of the Sudan to it until Mahdist forces took over Khartoum. The British atte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red-billed Quelea
The red-billed quelea (; ''Quelea quelea''), also known as the red-billed weaver or red-billed dioch, is a small—approximately long and weighing —migratory, sparrow-like bird of the weaver family, Ploceidae, native to Sub-Saharan Africa. It was named by Linnaeus in 1758, who considered it a bunting, but Ludwig Reichenbach assigned it in 1850 to the new genus ''Quelea''. Three subspecies are recognised, with ''Quelea quelea quelea'' occurring roughly from Senegal to Chad, ''Q. q. aethiopica'' from Sudan to Somalia and Tanzania, and ''Q. q. lathamii'' from Gabon to Mozambique and South Africa. Non-breeding birds have light underparts, striped brown upper parts, yellow-edged flight feathers and a reddish bill. Breeding females attain a yellowish bill. Breeding males have a black (or rarely white) facial mask, surrounded by a purplish, pinkish, rusty or yellowish wash on the head and breast. The species avoids forests, deserts and colder areas such as those ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Savanna
A savanna or savannah is a mixed woodland-grassland (i.e. grassy woodland) ecosystem characterised by the trees being sufficiently widely spaced so that the canopy does not close. The open canopy allows sufficient light to reach the ground to support an unbroken herbaceous layer consisting primarily of grasses. According to '' Britannica'', there exists four savanna forms; ''savanna woodland'' where trees and shrubs form a light canopy, ''tree savanna'' with scattered trees and shrubs, ''shrub savanna'' with distributed shrubs, and ''grass savanna'' where trees and shrubs are mostly nonexistent.Smith, Jeremy M.B.. "savanna". Encyclopedia Britannica, 5 Sep. 2016, https://www.britannica.com/science/savanna/Environment. Accessed 17 September 2022. Savannas maintain an open canopy despite a high tree density. It is often believed that savannas feature widely spaced, scattered trees. However, in many savannas, tree densities are higher and trees are more regularly spaced than in for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aousserd
Aousserd, Ausert or Auserd is a small town and rural commune in Aousserd Province of the Dakhla-Oued Ed-Dahab region of Western Sahara, disputed between Morocco and the Sahrawi Arab Democratic Republic and under Moroccan control. The number of permanent structures in Aousserd is low, as many residents follow the traditionally nomadic Bedouin lifestyle of the Sahrawis, passing through the town only temporarily and living in tents. At the time of the 2004 census, the commune had a total population of 5832 people living in 225 households. South of Tindouf, Algeria ) , image_map = Algeria (centered orthographic projection).svg , map_caption = , image_map2 = , capital = Algiers , coordinates = , largest_city = capital , relig ..., there is a Sahrawi refugee camp named after Aousserd. References External linksPhotos of Auserd from the Spanish colonial era (1970s) Populated places in Aousser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Passer Luteus Red Sea Sudan
''Passer'' is a genus of sparrows, also known as the true sparrows. The genus contains 28 species and includes the house sparrow and the Eurasian tree sparrow, two of the most common birds in the world. They are small birds with thick bills for eating seeds, and are mostly coloured grey or brown. Native to the Old World, some species have been introduced throughout the world. Taxonomy The genus ''Passer'' was introduced by the French zoologist Mathurin Jacques Brisson in 1760. The type species was subsequently designated as the house sparrow (''Passer domesticus''). The name ''Passer'' is the Latin word for "sparrow." Studies by Arnaiz-Villena et al. have examined the evolutionary relationships of the genus ''Passer'' with other members of the family Passeridae, and of members of the genus in relation to each other. According to a study by Arnaiz Villena et al. published in 2001, the genus originated in Africa and the Cape sparrow is the most basal lineage. The particular ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Passer Luteus Flock Red Sea Sudan
''Passer'' is a genus of sparrows, also known as the true sparrows. The genus contains 28 species and includes the house sparrow and the Eurasian tree sparrow, two of the most common birds in the world. They are small birds with thick bills for eating seeds, and are mostly coloured grey or brown. Native to the Old World, some species have been introduced throughout the world. Taxonomy The genus ''Passer'' was introduced by the French zoologist Mathurin Jacques Brisson in 1760. The type species was subsequently designated as the house sparrow (''Passer domesticus''). The name ''Passer'' is the Latin word for "sparrow." Studies by Arnaiz-Villena et al. have examined the evolutionary relationships of the genus ''Passer'' with other members of the family Passeridae, and of members of the genus in relation to each other. According to a study by Arnaiz Villena et al. published in 2001, the genus originated in Africa and the Cape sparrow is the most basal lineage. The particular ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Journal Of Molecular Evolution
The ''Journal of Molecular Evolution'' is a monthly peer-reviewed scientific journal that covers molecular evolution. It is published by Springer Science+Business Media and was established in 1971. The founding editor was Emile Zuckerkandl, who remained editor-in-chief until the late 1990s. In 1994, the journal became associated with the then existent International Society of Molecular Evolution. Scope In a 1998 editorial, Zuckerkandl stated that he wanted the journal to "insure that this field be covered in its broadest sense" by publishing research that is of broad interest to the field of molecular evolution that it helped define, as well as to biology in general. To this end, Zuckerkandl stated that the journal does not cover research either on practical applications of molecular evolution, or articles "whose focus is very restricted and that do not lead to valuable insights beyond their narrow topic". However, he looked forward to coverage of new, rapidly developing areas of m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
