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Ankober Serin
The Ankober serin (''Crithagra ankoberensis'') is a species of finch in the family Fringillidae. It is a small brown seedeater, about 12 centimeters or 5 inches in length with brown upperparts and its head and breast distinguished with heavy buffy-colored streaking. It is gregarious and is often encountered in flocks. Its song consists of a constant, low twitter.Nigel Redman, Terry Stevenson, and John Fanshawe, ''Birds of the Horn of Africa: Ethiopia, Eritrea, Djibouti, Somalia, and Socotra'' (Princeton: University Press, 2009), p. 454 This bird is endemic to Ethiopia, inhabiting steep rocky slopes and high cliff-tops; the reported range of the Ankober serin consists of several disjointed areas in northern Shewa and in the northern Amhara Region. It is threatened by habitat loss. The Ankober serin was formerly placed in the genus ''Serinus'' but phylogenetic analysis using mitochondrial and nuclear DNA sequences found that the genus was polyphyletic. The genus was therefore spl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Ash (ornithologist)
John Sidney Ash (1925 – 2014) was an English ornithologist. He had a strong interest in the avifauna from the Horn of Africa, in particular Somalia, Eritrea and Ethiopia.Beolens, Bo; Watkins, Michael (2003). Whose Bird? Men and Women Commemorated in the Common Names of Birds. London: Christopher Helm. p. 30. Career Ash was born in Gosforth, Northumberland on 26 May 1925 as son of Sidney and Kathleen Ash né Denley. In 1945, he graduated with a Bachelor of Science from the Newcastle wing of the University of Durham. He received the D.I.C. at the Imperial College London in 1948 and promoted there to Ph.D. in 1952. He was co-author of two fieldguides, ''The Birds of Somalia'' (with John E. Miskell) in 1998, and ''Birds of Ethiopia and Eritrea'' (with John Atkins) in 2009. Ash discovered several new bird taxa, including the Ankober serin (''Serinus ankoberensis''), ''Turdoides squamulata carolinae'' (a subspecies of the scaly babbler) which he named for his daughter Caroline, ''H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Finch
The true finches are small to medium-sized passerine birds in the family Fringillidae. Finches have stout conical bills adapted for eating seeds and nuts and often have colourful plumage. They occupy a great range of habitats where they are usually resident and do not migrate. They have a worldwide distribution except for Australia and the polar regions. The family Fringillidae contains more than two hundred species divided into fifty genera. It includes species known as siskins, canaries, redpolls, serins, grosbeaks and euphonias. Many birds in other families are also commonly called "finches". These groups include the estrildid finches (Estrildidae) of the Old World tropics and Australia; some members of the Old World bunting family (Emberizidae) and the New World sparrow family (Passerellidae); and the Darwin's finches of the Galapagos islands, now considered members of the tanager family (Thraupidae).Newton (1973), Clement ''et al.'' (1993) Finches and canaries were us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fringillidae
The true finches are small to medium-sized passerine birds in the family Fringillidae. Finches have stout conical bills adapted for eating seeds and nuts and often have colourful plumage. They occupy a great range of habitats where they are usually resident and do not migrate. They have a worldwide distribution except for Australia and the polar regions. The family Fringillidae contains more than two hundred species divided into fifty genera. It includes species known as siskins, canaries, redpolls, serins, grosbeaks and euphonias. Many birds in other families are also commonly called "finches". These groups include the estrildid finches (Estrildidae) of the Old World tropics and Australia; some members of the Old World bunting family (Emberizidae) and the New World sparrow family (Passerellidae); and the Darwin's finches of the Galapagos islands, now considered members of the tanager family (Thraupidae).Newton (1973), Clement ''et al.'' (1993) Finches and canaries were us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ethiopia
Ethiopia, , om, Itiyoophiyaa, so, Itoobiya, ti, ኢትዮጵያ, Ítiyop'iya, aa, Itiyoppiya officially the Federal Democratic Republic of Ethiopia, is a landlocked country in the Horn of Africa. It shares borders with Eritrea to the north, Djibouti to the northeast, Somalia to the east and northeast, Kenya to the south, South Sudan to the west, and Sudan to the northwest. Ethiopia has a total area of . As of 2022, it is home to around 113.5 million inhabitants, making it the 13th-most populous country in the world and the 2nd-most populous in Africa after Nigeria. The national capital and largest city, Addis Ababa, lies several kilometres west of the East African Rift that splits the country into the African and Somali tectonic plates. Anatomically modern humans emerged from modern-day Ethiopia and set out to the Near East and elsewhere in the Middle Paleolithic period. Southwestern Ethiopia has been proposed as a possible homeland of the Afroasiatic langua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shewa
Shewa ( am, ሸዋ; , om, Shawaa), formerly romanized as Shua, Shoa, Showa, Shuwa (''Scioà'' in Italian language, Italian), is a historical region of Ethiopia which was formerly an autonomous monarchy, kingdom within the Ethiopian Empire. The modern Ethiopian capital Addis Ababa is located at its center. Modern Shewa includes the historical Endagabatan province. The towns of Debre Berhan, Antsokia, Ankober, Entoto and, after Shewa became a Provinces of Ethiopia, province of Ethiopia, Addis Ababa have all served as the capital of Shewa at various times. Most of northern Shewa, made up of the districts of Menz, Tegulet, Yifat (Ethiopia), Yifat, Menjar and Bulga, Ethiopia, Bulga, is populated by Christian Amhara people, Amharas, while southern Shewa is inhabited by the Gurages and eastern Shewa has large Oromo and Argobba people, Argobba Islam in Ethiopia, Muslim populations. The monastery of Debre Libanos, founded by Saint Tekle Haymanot, is located in the district of Selale, al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amhara Region
The Amhara Region ( am, አማራ ክልል, Åmara Kilil), officially the Amhara National Regional State (), is a regional state in northern Ethiopia and the homeland of the Amhara people. Its capital is Bahir Dar which is the seat of the Regional Government of Amhara. Amhara is the site of the largest inland body of water in Ethiopia, Lake Tana (which is the source of the Blue Nile), and Semien Mountains National Park (which includes Ras Dashan, the highest point in Ethiopia). Amhara is bordered by Sudan to the west and northwest and by other the regions of Ethiopia: Tigray to the north, Afar to the east, Benishangul-Gumuz to the west and southwest, and Oromia to the south. History During the Ethiopian Empire, Amhara included several provinces (such as Dembiya, Gojjam, Begemder, Angot, Wollo, Shewa and Lasta), most of which were ruled by native Ras or Negus. The current Amhara region corresponds to often large parts of the former provinces of Begemder, Dembiya, Angot, B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Habitat Loss
Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby reducing biodiversity and species abundance. Habitat destruction is the leading cause of biodiversity loss. Fragmentation and loss of habitat have become one of the most important topics of research in ecology as they are major threats to the survival of endangered species. Activities such as harvesting natural resources, industrial production and urbanization are human contributions to habitat destruction. Pressure from agriculture is the principal human cause. Some others include mining, logging, trawling, and urban sprawl. Habitat destruction is currently considered the primary cause of species extinction worldwide. Environmental factors can contribute to habitat destruction more indirectly. Geological processes, climate change, introdu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serinus
''Serinus'' is a genus of small birds in the finch family Fringillidae found in Europe and Africa. The birds usually have some yellow in their plumage. The genus was introduced in 1816 by the German naturalist Carl Ludwig Koch. Its name is New Latin for "canary-yellow". Many species were at one time assigned to the genus but it became clear from phylogenetic studies of mitochondrial and nuclear DNA sequences that the genus was polyphyletic. This was confirmed by Dario Zuccon and coworkers in a comprehensive study of the finch family published in 2012. The authors suggested splitting the genus into two monophyletic groups, a proposal that was accepted by the International Ornithologists' Union. The genus ''Serinus'' was restricted to the European serin and seven other species while a larger clade from Africa and Arabia was assigned to the resurrected genus ''Crithagra ''Crithagra'' is a genus of small passerine birds in the finch family (Fringillidae). They live in Africa and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mitochondrial
A mitochondrion (; ) is an organelle found in the cells of most Eukaryotes, such as animals, plants and fungi. Mitochondria have a double membrane structure and use aerobic respiration to generate adenosine triphosphate (ATP), which is used throughout the cell as a source of chemical energy. They were discovered by Albert von Kölliker in 1857 in the voluntary muscles of insects. The term ''mitochondrion'' was coined by Carl Benda in 1898. The mitochondrion is popularly nicknamed the "powerhouse of the cell", a phrase coined by Philip Siekevitz in a 1957 article of the same name. Some cells in some multicellular organisms lack mitochondria (for example, mature mammalian red blood cells). A large number of unicellular organisms, such as microsporidia, parabasalids and diplomonads, have reduced or transformed their mitochondria into other structures. One eukaryote, ''Monocercomonoides'', is known to have completely lost its mitochondria, and one multicellular organism, ... [...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] |
Crithagra
''Crithagra'' is a genus of small passerine birds in the finch family (Fringillidae). They live in Africa and Arabia. The species in this genus were formerly assigned to the genus ''Serinus'', but phylogenetic analysis of mitochondrial and nuclear DNA sequences found that the genus was polyphyletic. It was therefore split into two monophyletic genera. Eight species, including the European serin (''Serinus serinus''), were retained in ''Serinus'', while the other species were assigned to the resurrected genus ''Crithagra''. The genus was introduced in 1827 by the English ornithologist William John Swainson. The type species was subsequently designated as the brimstone canary. The name comes from the classical Greek ''krithē'' for "barley" and ''agra'' for "hunting". The genus contains 37 species: *Príncipe seedeater, ''Crithagra rufobrunnea'' *São Tomé grosbeak, ''Crithagra concolor'' * African citril, ''Crithagra citrinelloides'' *Western citril, ''Crithagra frontalis'' *Sou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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