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Anser Neglectus
Sushkin's goose (''Anser neglectus'') is a putative species of goose now thought to be extinct. The status as a species has remained contested. It has sometimes been considered a subspecies of the bean goose but some have proposed, based on descriptions in life and specimens, that it was distinctive enough to be treated as a full species. It has been suggested that the Tunguska event of 1908 may have wiped out most of the breeding population in the Taiga region resulting in its dwindling to extinction. Some geese with "''neglectus''" type characters have been recorded suggesting that the last few populations hybridized with other geese such as the tundra and taiga bean goose in the breeding region. Description The species was first described by Professor Petr Sushkin in 1897 based on eight specimens obtained from wintering grounds in Bashkiria. Large numbers were known to winter near Tashkent and Hortobágy in eastern Hungary. Nearly 150,000 were known to winter in Hungary be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bean Goose
The bean goose (''Anser fabalis'' or ''Anser serrirostris'') is a goose that breeds in northern Europe and Eurosiberia. It has two distinct varieties, one inhabiting taiga habitats and one inhabiting tundra. These are recognised as separate species by the American Ornithologists' Union and the IOC (taiga bean goose and tundra bean goose), but are considered a single species by other authorities, such as the British Ornithologists' Union. It is migratory and winters further south in Europe and Asia. Description The length ranges from , wingspan from and weight from . In the nominate subspecies, males average and females average . The bill is black at the base and tip, with an orange band across the middle; the legs and feet are also bright orange. The upper wing-coverts are dark brown, as in the white-fronted goose (''Anser albifrons'') and the lesser white-fronted goose (''A. erythropus''), but differing from these in having narrow white fringes to the feathers. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tunguska Event
The Tunguska event (occasionally also called the Tunguska incident) was an approximately 12-megaton explosion that occurred near the Podkamennaya Tunguska River in Yeniseysk Governorate (now Krasnoyarsk Krai), Russia, on the morning of June 30, 1908. The explosion over the sparsely populated Eastern Siberian Taiga flattened an estimated 80 million trees over an area of of forest, and eyewitness reports suggest that at least three people may have died in the event. The explosion is generally attributed to a meteor air burst: the atmospheric explosion of a stony asteroid about in size. The supposed asteroid approached from the east-southeast, and likely with a relatively high speed of about (~ Ma 80). It is classified as an impact event, even though no impact crater has been found; the object is thought to have disintegrated at an altitude of rather than having hit the surface of the Earth. The Tunguska event is the largest impact event on Earth in recorded history, thou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tundra Bean Goose
The tundra bean goose (''Anser serrirostris'') is a goose that breeds in northern Siberia. This and the taiga bean goose are recognised as separate species by the American Ornithological Society and International Ornithologists' Union, but are considered a single species by other authorities (collectively called bean goose). It is migratory and winters further south in Asia. The taiga and tundra bean goose diverged about 2.5 million years ago and established secondary contact ca. 60,000 years ago, resulting in extensive gene flow. Description The length ranges from , wingspan from and weight from . In the nominate subspecies, males average and females average . The bill is black at the base and tip, with an orange band across the middle; the legs and feet are also bright orange. The upper wing-coverts are dark brown, as in the white-fronted goose (''Anser albifrons'') and the lesser white-fronted goose (''A. erythropus''), but differing from these in having narrow white frin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taiga Bean Goose
The taiga bean goose (''Anser fabalis'') is a goose that breeds in northern Europe and Asia. This and the tundra bean goose are recognised as separate species by the American Ornithological Society and the International Ornithologists' Union, but are considered a single species by other authorities (collectively called bean goose). It is migratory and winters further south in Europe and Asia. The taiga and tundra bean goose diverged about 2.5 million years ago and established secondary contact ca. 60,000 years ago, resulting in extensive gene flow. Description The length ranges from , wingspan from and weight from . In the nominate subspecies, males average and females average . The bill is black at the base and tip, with an orange band across the middle; the legs and feet are also bright orange. The upper wing-coverts are dark brown, as in the white-fronted goose (''Anser albifrons'') and the lesser white-fronted goose (''A. erythropus''), but differing from these in havin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ibis Sushkin's Goose
The ibises () (collective plural ibis; classical plurals ibides and ibes) are a group of long-legged wading birds in the family Threskiornithidae, that inhabit wetlands, forests and plains. "Ibis" derives from the Latin and Ancient Greek word for this group of birds. It also occurs in the scientific name of the cattle egret (''Bubulcus ibis'') mistakenly identified in 1757 as being the sacred ibis. Description Ibises all have long, downcurved bills, and usually feed as a group, probing mud for food items, usually crustaceans. They are monogamous and highly territorial while nesting and feeding. Most nest in trees, often with spoonbills or herons. All extant species are capable of flight, but two extinct genera were flightless, namely the kiwi-like '' Apteribis'' in the Hawaiian Islands, and the peculiar '' Xenicibis'' in Jamaica. The word ''ibis'' comes from Latin ''ibis'' from Greek ἶβις ''ibis'' from Egyptian ''hb'', ''hīb''. Beekes, R. S. P. (2009) ''Etymological Dict ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petr Sushkin
Petr Petrovich Sushkin (russian: Петр Петрович Сушкин; 27 January 1868 – 17 September 1928) was a Russian ornithologist who specialised on comparative anatomy, and evolution of birds, particularly of the birds of prey. Sushkin was born in Tula, Russia, in a merchant family. He studied at the Tula Classical Gymnasium (1877-1885) graduating with a silver medal before going on to Moscow University in 1885. He graduated in 1890 and joined the staff of the Leningrad Zoological Museum in 1898. He studied ornithology under Mikhail Menzbier and his dissertation in 1897 was on the morphology of the skeleton of birds, specifically of the kestrel. He conducted surveys in the Ufa province in 1891 and Kazakhstan in 1898. His studies on the birds of southeastern Russia, Siberia and the Altai Mountains were published in several monographs. Sushkin visited European museums from 1899 to 1900 and worked on his doctoral dissertation on the birds of prey. He became a professor at M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bashkiria (1917–1919)
Bashkiria ( ba, Башҡортостан, translit=Bashqortostan), also called Bashkortostan, Bashkurdistan, Lesser Bashkiria, or Autonomous Bashkiria, was a short-lived autonomous state which existed from 1917 to 1919, during the Russian Civil War. Aligned with the Russian State, Bashkiria was attacked and later annexed by the Russian Soviet Federative Socialist Republic, leading to its 1919 collapse and succession by the Bashkir Autonomous Soviet Socialist Republic. History Following the February Revolution, nationalist sentiment began to foment within Bashkiria, leading to the creation of the in June 1917. The Bashkir Regional Bureau organised local councils, called ''shuros'', to ensure the expansion of Bashkir rights. Subsequently, in July and August 1917, the first and second were held in Orenburg and Ufa, respectively, where a consensus was reached to create a "democratic republic on a national-territorial basis as part of federal Russia." Elected by the first and re- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tashkent
Tashkent (, uz, Toshkent, Тошкент/, ) (from russian: Ташкент), or Toshkent (; ), also historically known as Chach is the capital and largest city of Uzbekistan. It is the most populous city in Central Asia, with a population of 2,909,500 (2022). It is in northeastern Uzbekistan, near the border with Kazakhstan. Tashkent comes from the Turkic ''tash'' and ''kent'', literally translated as "Stone City" or "City of Stones". Before Islamic influence started in the mid-8th century AD, Tashkent was influenced by the Sogdian and Turkic cultures. After Genghis Khan destroyed it in 1219, it was rebuilt and profited from the Silk Road. From the 18th to the 19th century, the city became an independent city-state, before being re-conquered by the Khanate of Kokand. In 1865, Tashkent fell to the Russian Empire; it became the capital of Russian Turkestan. In Soviet times, it witnessed major growth and demographic changes due to forced deportations from throughout the Sov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hortobágy
Hortobágy is a village in Hajdú-Bihar County in eastern Hungary. It lies on the banks of the river, which is crossed at Hortobágy by the Nine-arched Bridge, one of the principal man-made monuments of the Hortobágy National Park. The park consists mainly of the remaining areas of Hungarian puszta. 2016 explosive incident On 1 July 2016, 4 demolition experts of the Hungarian Defence Force The Hungarian Defence Forces ( hu, Magyar Honvédség) is the national defence force of Hungary. Since 2007, the Hungarian Armed Forces is under a unified command structure. The Ministry of Defence maintains the political and civil control over ... were killed and another seriously injured while attempting to detonate a 250 kilogram Russian-made fragmentation bomb manufactured shortly after WW2. The incident took place at a firing range within the Hortobágy National Park. The firing range covers 4,000 hectares (about 9,800 acres) and has been used for practice by the Hungarian armed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taiga Bean Goose
The taiga bean goose (''Anser fabalis'') is a goose that breeds in northern Europe and Asia. This and the tundra bean goose are recognised as separate species by the American Ornithological Society and the International Ornithologists' Union, but are considered a single species by other authorities (collectively called bean goose). It is migratory and winters further south in Europe and Asia. The taiga and tundra bean goose diverged about 2.5 million years ago and established secondary contact ca. 60,000 years ago, resulting in extensive gene flow. Description The length ranges from , wingspan from and weight from . In the nominate subspecies, males average and females average . The bill is black at the base and tip, with an orange band across the middle; the legs and feet are also bright orange. The upper wing-coverts are dark brown, as in the white-fronted goose (''Anser albifrons'') and the lesser white-fronted goose (''A. erythropus''), but differing from these in havin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Podkamennaya Tunguska
The Podkamennaya Tunguska (russian: Подкаменная Тунгуска, literally ''Tunguska under the stones''; evn, Дулгу Катэнӈа, Ket: Ӄо’ль) also known as ''Middle Tunguska'' or ''Stony Tunguska'', is a river in Krasnoyarsk Krai, Russia. History In 1908, an asteroid impacted near the river and later became known as the Tunguska event. In popular culture The river was the set location in the Call of Duty: Black Ops Escalation DLC map, ''Call of The Dead.'' See also *List of rivers of Russia Russia can be divided into a European and an Asian part. The dividing line is generally considered to be the Ural Mountains. The European part is drained into the Arctic Ocean, Baltic Sea, Black Sea, and Caspian Sea. The Asian part is drained into ... References External links * Rivers of Krasnoyarsk Krai {{Russia-river-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinct Birds Of Asia
Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the fossil record) after a period of apparent absence. More than 99% of all species that ever lived on Earth, amounting to over five billion species, are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryote globally, and possibly many times more if microorganisms, like bacteria, are included. Notable extinct animal species include non-avian dinosaurs, saber-toothed cats, dodos, m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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