Sushkin's goose | |
---|---|
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Anseriformes |
Family: | Anatidae |
Genus: | Anser |
Species: | †A. neglectus |
Binomial name | |
†Anser neglectus Sushkin, 1897 | |
Sushkin's goose (Anser neglectus) was a putative species of goose now thought to be extinct. The status as a species has been contested and a 2022 DNA study based on five specimens found no evidence of genetic isolation. 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.
The species was first described by Professor Petr Sushkin in 1897 based on eight specimens obtained from wintering grounds in Bashkiria. [1] Large numbers were known to winter near Tashkent and Hortobágy in eastern Hungary. Nearly 150,000 were known to winter in Hungary between 1908 and 1911. [2] It had a distinctive double-note “Gé-gé” call, and differed in the size of its bill and its colouration. The feet were pink and the mid portion of the bill was fleshy or rosy, unlike orange in bean geese. The sizes were closer to Anser fabalis rossicus. It was considered as a valid species [3] until it was downgraded by Johansen in 1945. As much of the literature on the species has not been in English, it has largely been ignored. The last known living birds were in the Budapest zoo in 1934. Individuals of Anser serrirostris and Anser fabalis with similar bill colours have been reported which might suggest that the species formerly interbred at the edges of its breeding range. [4] [5] [6] [7] [8] [9]
A large molecular genetics study of bean geese populations used a few examples of what were termed as "neglectus" suggested that they were within the range of variations of a single species. [10] However, it was pointed out, based on the measurements of the bills, that the sequenced specimens claimed as neglectus were in-fact not suitable exemplars, possibly not even representing the true neglectus. [4] Another study in 2022 based on mitochondrial DNA found that neglectus specimens did not have any unique sequence signature and they could be grouped with rossicus or fabalis and might merely reflect developmental and carotenoid pigmentation variations. One specimen showed genetic markers associated with A. middendorfi but was morphologically similar to fabalis. [11]
The breeding zone of the form was never discovered but it has been suggested that it may have been in the Podkamennaya Tunguska river and its basin which was ornithologically under-explored. [4]
The greylag goose or graylag goose is a species of large goose in the waterfowl family Anatidae and the type species of the genus Anser. It has mottled and barred grey and white plumage and an orange beak and pink legs. A large bird, it measures between 74 and 91 centimetres in length, with an average weight of 3.3 kilograms. Its distribution is widespread, with birds from the north of its range in Europe and Asia often migrating southwards to spend the winter in warmer places, although many populations are resident, even in the north. It is the ancestor of most breeds of domestic goose, having been domesticated at least as early as 1360 BCE. The genus name and specific epithet are from anser, the Latin for "goose".
The greater white-fronted goose is a species of goose, closely related to the smaller lesser white-fronted goose. The greater white-fronted goose is migratory, breeding in northern Canada, Alaska, Greenland and Russia, and winters farther south in North America, Europe and Asia. It is named for the patch of white feathers bordering the base of its bill: albifrons comes from the Latin albus "white" and frons "forehead". In the United Kingdom and Ireland, it has been known as the white-fronted goose; in North America it is known as the greater white-fronted goose, and this name is also increasingly adopted internationally. Even more distinctive are the salt-and-pepper markings on the breast of adult birds, which is why the goose is colloquially called the "specklebelly" in North America.
The taiga bean goose is a goose that breeds in northern Europe and Asia. It is migratory and winters further south in 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. The taiga and tundra bean goose diverged about 2.5 million years ago and established secondary contact c. 60,000 years ago, resulting in extensive gene flow.
The pink-footed goose is a goose which breeds in eastern Greenland, Iceland, Svalbard, and recently Novaya Zemlya. It is migratory, wintering in northwest Europe, especially Ireland, Great Britain, the Netherlands, and western Denmark. The name is often abbreviated in colloquial usage to "pinkfoot". Anser is the Latin for "goose", and brachyrhynchus comes from the ancient Greek brachus "short" and rhunchos "bill".
The lesser white-fronted goose is a goose closely related to the larger greater white-fronted goose. It breeds in the northernmost Palearctic, but it is a scarce breeder in Europe, with a reintroduction attempt in Fennoscandia.
The bar-headed goose is a goose that breeds in Central Asia in colonies of thousands near mountain lakes and winters in South Asia, as far south as peninsular India. It lays three to eight eggs at a time in a ground nest. It is known for the extreme altitudes it reaches when migrating across the Himalayas.
The snow goose is a species of goose native to North America. Both white and dark morphs exist, the latter often known as blue goose. Its name derives from the typically white plumage. The species was previously placed in the genus Chen, but is now typically included in the "gray goose" genus Anser.
The emperor goose, also known as the beach goose or the painted goose, is a waterfowl species in the family Anatidae, which contains the ducks, geese, and swans. In summer, the emperor goose is found in remote coastal areas near the Bering Sea in arctic and sub-arctic Alaska and the Russian Far East, where it breeds in monogamous pairs. It migrates south to winter in ice-free mudflats and coasts in Alaska, mostly the Aleutian Islands, and Canada's British Columbia, rarely reaching the contiguous United States. Listed as near threatened by the International Union for Conservation of Nature, the species' population is declining due to threats such as pollution, hunting, and climate change.
The cotton pygmy goose or cotton teal is a small perching duck which breeds in Asia, Southeast Asia extending south and east to Queensland where they are sometimes called white-quilled pygmy goose. They are among the smallest waterfowl in the world and are found in small to large waterbodies with good aquatic vegetation. They are usually seen in pairs or larger groups of pairs, roosting and nesting on trees near water. They are strong fliers and are known to disperse widely, especially in winter. Their breeding season coincides with the rains.
The upland goose or Magellan goose is a sheldgoose of the shelduck-sheldgoose subfamily of the Anatidae, the biological family that includes the ducks and most duck-like waterfowl such as the geese and swans. Sheldgeese resemble true geese and display similar habits, yet they are more closely related to shelducks and ducks. The two recognized subspecies of upland goose are the continental picta subspecies and the insular (island) leucoptera subspecies.
Anser is a waterfowl genus that includes the grey geese and the white geese. It belongs to the true goose and swan subfamily of Anserinae under the family of Anatidae. The genus has a Holarctic distribution, with at least one species breeding in any open, wet habitats in the subarctic and cool temperate regions of the Northern Hemisphere in summer. Some also breed farther south, reaching into warm temperate regions. They mostly migrate south in winter, typically to regions in the temperate zone between the January 0 °C (32 °F) and 5 °C (41 °F) isotherms.
A clutch of eggs is the group of eggs produced by birds, amphibians, or reptiles, often at a single time, particularly those laid in a nest.
George Griswold Latimer Bates, LL.D., M.B.O.U. was an American naturalist. He lived in central Africa and travelled widely, collecting specimens of natural history from which numerous new species were described. As many as 62 new species of mammals, reptiles and amphibians were described from his collections, including the Goliath frog, the hairy frog, and the Goliath shrew Crocidura goliath. He published a Handbook of the Birds of West Africa (1930) and was compiling a catalogue of the birds of Arabia. A plant genus Batesanthus was named after him and several species of bird bear his name including the rare Bates's weaver.
The Mauritius sheldgoose, also known as the Mauritius shelduck, is an extinct species of sheldgoose that was endemic to the island of Mauritius. While geese were mentioned by visitors to Mauritius in the 17th century, few details were provided by these accounts. In 1893, a carpometacarpus wing-bone and a pelvis from the Mare aux Songes swamp were used to name a new species of comb duck, Sarcidiornis mauritianus. These bones were connected to the contemporary accounts of geese and later determined to belong to a species related to the Egyptian goose and placed in the sheldgoose genus Alopochen. The Mauritius and Réunion sheldgoose may have descended from Egyptian geese that colonised the Mascarene islands.
Reginald "Reg" Ernest Moreau was an English civil servant who worked as an accountant in Tanganyika and later contributed to ornithology. He also made studies on the migration of birds between Europe and Africa; and on clutch size in nesting birds, compared the life-histories of birds in different latitudes and was a pioneer in the introduction of quantitative approaches to the study of birds. He was also a long time editor of the ornithological journal Ibis. He published two major books, The Palaearctic-African Bird Migration Systems (1972) and The Bird Faunas of Africa and its Islands (1966).
Jacques Van Impe is a Belgian academic widely published in the field of ornithology. His research is particularly focused on reproduction in the greater white-fronted goose, the bean goose, the Eurasian oystercatcher, the pied avocet, the northern lapwing, the black-tailed godwit, and the common redshank.
Nefermaat I was an ancient Egyptian prince, a son of king Sneferu. He was a vizier possessing the titles of the king's eldest son, royal seal bearer, and prophet of Bastet. His name means "Maat is beautiful" or "With perfect justice".
The tundra bean goose 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. 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.
The bean goose is a species complex of goose that breeds in northern Europe and Eurosiberia. It has at least 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, but are considered a single species by other authorities, such as the British Ornithologists' Union. The related pink-footed goose has also been included in the species complex. It is migratory and winters further south in Europe and Asia.
Užava lowland is nature park Ventspils Municipality. It is located in the Užava river floodplain Užavas and Ziru parishes, occupies a large part of the currently dysfunctional Užava polder. Natura 2000 site.