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Hybridisation In Shorebirds
Hybridisation in shorebirds has been proven on only a small number of occasions; however, many individual shorebirds have been recorded by birdwatchers worldwide that do not fit the characters of known species. Many of these have been suspected of being hybrids. In several cases, shorebird hybrids have been described as new species before their hybrid origin was discovered. Compared to other groups of birds (such as gulls), only a few species of shorebirds are known or suspected to hybridize, but nonetheless, these hybrids occur quite frequently in some cases. Hybrids in the Scolopaci (typical waders) "Cooper's" and "Cox's" sandpipers An apparently new sandpiper species ("Cooper's sandpiper ''Tringa''/''Calidris cooperi''") was described in 1858 based on a specimen collected in 1833 on Long Island, New York. A similar bird was collected in 1981 at Stockton, New South Wales, Australia. These are probably hybrids between the curlew sandpiper (''"Calidris" ferruginea'') and the sharp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hybrid (biology)
In biology, a hybrid is the offspring resulting from combining the qualities of two organisms of different breeds, varieties, species or genera through sexual reproduction. Hybrids are not always intermediates between their parents (such as in blending inheritance), but can show hybrid vigor, sometimes growing larger or taller than either parent. The concept of a hybrid is interpreted differently in animal and plant breeding, where there is interest in the individual parentage. In genetics, attention is focused on the numbers of chromosomes. In taxonomy, a key question is how closely related the parent species are. Species are reproductively isolated by strong barriers to hybridisation, which include genetic and morphological differences, differing times of fertility, mating behaviors and cues, and physiological rejection of sperm cells or the developing embryo. Some act before fertilization and others after it. Similar barriers exist in plants, with differences in flowering tim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dunlin
The dunlin (''Calidris alpina'') is a small wader, formerly sometimes separated with the other "stints" in the genus ''Erolia''. The English name is a dialect form of "dunling", first recorded in 1531–1532. It derives from ''dun'', "dull brown", with the suffix ''-ling'', meaning a person or thing with the given quality. It is a circumpolar breeder in Arctic or subarctic regions. Birds that breed in northern Europe and Asia are long-distance migrants, wintering south to Africa, southeast Asia and the Middle East. Birds that breed in Alaska and the Canadian Arctic migrate short distances to the Pacific and Atlantic coasts of North America, although those nesting in northern Alaska overwinter in Asia. Many dunlins winter along the Iberian south coast. Taxonomy The dunlin was formally described by the Swedish naturalist Carl Linnaeus in 1758 in the tenth edition of his ''Systema Naturae'' under the binomial name ''Tringa alpina''. Linnaeus specified the location as Lapland. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Oystercatcher
The black oystercatcher (''Haematopus bachmani'') is a conspicuous black bird found on the shoreline of western North America. It ranges from the Aleutian Islands of Alaska to the coast of the Baja California peninsula. The black oystercatcher is the only representative of the oystercatcher family (Haematopodidae) over most of its range, overlapping slightly with the American oystercatcher (''H. palliatus'') on the coast of Baja California. Within its range it is most commonly referred to as the black oystercatcher, although this name is also used locally for the blackish oystercatcher and the African oystercatcher. Its scientific name is derived by John James Audubon from that of his friend John Bachman. Although the species is not considered threatened, its global population size is estimated between 8,900–11,000 individuals. The black oystercatcher is a species of high conservation concern throughout its range (U.S., Canadian, Alaskan, and Northern & Southern Pacific Sho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Oystercatcher
The American oystercatcher (''Haematopus palliatus''), occasionally called the American pied oystercatcher, is a member of family Haematopodidae. Originally called the "sea pie", it was renamed in 1731 when naturalist Mark Catesby observed the bird eating oysters. The current population of American oystercatchers is estimated to be 43,000. There are estimated to be 1,500 breeding pairs along the Atlantic and Gulf Coasts of the US. The bird is marked by its black and white body and a long, thick orange beak. Description The American oystercatcher has distinctive black and white plumage and a long, bright orange beak. The head and breast are black and the back, wings and tail greyish-black. The underparts are white, as are feathers on the inner part of the wing which become visible during flight. The irises are yellow and the eyes have orange orbital rings. The legs are pink. Adults are between in length. Distribution The American oystercatcher is found on the Atlantic coast of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Green Sandpiper
The green sandpiper (''Tringa ochropus'') is a small wader (shorebird) of the Old World. The green sandpiper represents an ancient lineage of the genus ''Tringa''; its only close living relative is the solitary sandpiper (''T. solitaria''). They both have brown wings with little light dots and a delicate but contrasting neck and chest pattern. In addition, both species nest in trees, unlike most other scolopacids. Given its basal position in ''Tringa'', it is fairly unsurprising that suspected cases of hybridisation between this species and the common sandpiper (''A. hypoleucos'') of the sister genus ''Actitis'' have been reported. Taxonomy The green sandpiper was formally described by the Swedish naturalist Carl Linnaeus in 1758 in the tenth edition of his ''Systema Naturae'' under the current binomial name ''Tringa ochropus''. The genus name ''Tringa'' is the New Latin name given to the green sandpiper by Aldrovandus in 1599 based on Ancient Greek ''trungas'', a thrush ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calidrid
''Calidris'' is a genus of Arctic-breeding, strongly migratory wading birds in the family Scolopacidae. These birds form huge mixed flocks on coasts and estuaries in winter. They are the typical "sandpipers", small to medium-sized, long-winged and relatively short-billed. Their bills have sensitive tips which contain numerous corpuscles of Herbst. This enables the birds to locate buried prey items, which they typically seek with restless running and probing. Taxonomy The genus ''Calidris'' was introduced in 1804 by the German naturalist Blasius Merrem with the red knot as the type species. The genus name is from Ancient Greek ''kalidris'' or ''skalidris'', a term used by Aristotle for some grey-coloured waterside birds. The genus contain 24 species: * Great knot, ''Calidris tenuirostris'' * Red knot, ''Calidris canutus'' * Surfbird, ''Calidris virgata'' * Ruff, ''Calidris pugnax'' * Broad-billed sandpiper, ''Calidris falcinellus'' * Sharp-tailed sandpiper, ''Calidris acumi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buff-breasted Sandpiper
The buff-breasted sandpiper (''Calidris subruficollis'') is a small wader, shorebird. The species name ''subruficollis'' is from Latin ''subrufus'', "reddish" (from ''sub'', "somewhat", and ''rufus'', "rufous") and ''collis'', "-necked/-throated" (from ''collum'', "neck"). It is a calidrid sandpiper. Description This species is brown above, and has a buff face and underparts in all plumages. It has a short bill and yellow legs. Males are larger than females. Juveniles resemble the adults, but may be paler on the rear underparts. Distribution and habitat ''C. subruficollis'' breeds in the open arctic tundra of North America and is a very long-distance bird migration, migrant, spending the non-breeding season mainly in South America, especially Argentina. It Bird migration, migrates mainly through central North America, and is uncommon on the coasts. It occurs as a regular wanderer to western Europe, and is not classed as rare in Great Britain or Ireland, where small flocks hav ... [...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] |
Spotted Sandpiper
The spotted sandpiper (''Actitis macularius'') is a small shorebird. Together with its sister species the common sandpiper (''A. hypoleucos''), it makes up the genus ''Actitis''. They replace each other geographically; stray birds may settle down with breeders of the other species and hybridize. Taxonomy The spotted sandpiper was formally described by the Swedish naturalist Carl Linnaeus in 1766 in the twelfth edition of his ''Systema Naturae'' under the binomial name ''Tringa macularia''. The type locality is Pennsylvania. The species is now placed together with common sandpiper in the genus ''Actitis'' that was introduced in 1811 by the German zoologist Johann Illiger. The genus name ''Actitis'' is from Ancient Greek ''aktites'' meaning "coast-dweller" from ''akte'' meaning "coast". The specific epithet ''macularius'' is Latin meaning "spotted". The species is monotypic: no subspecies are recognised. Description Adults have short yellowish legs and an orange bill with a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Sandpiper
The common sandpiper (''Actitis hypoleucos'') is a small Palearctic wader. This bird and its American sister species, the spotted sandpiper (''A. macularia''), make up the genus ''Actitis''. They are parapatric and replace each other geographically; stray birds of either species may settle down with breeders of the other and hybridize. Hybridization has also been reported between the common sandpiper and the green sandpiper, a basal species of the closely related shank genus ''Tringa''. Taxonomy The common sandpiper was formally described by the Swedish naturalist Carl Linnaeus in 1758 in the tenth edition of his '' Systema Naturae'' under the binomial name ''Tringa hypoleucos''. The species is now placed together with the spotted sandpiper in the genus ''Actitis'' that was introduced in 1811 by the German zoologist Johann Karl Wilhelm Illiger. The genus name ''Actitis'' is from Ancient Greek ''aktites'' meaning "coast-dweller" from ''akte'' meaning "coast". The specific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Purple Sandpiper
The purple sandpiper (''Calidris maritima'') is a small shorebird in the sandpiper family Scolopacidae. This is a hardy sandpiper that breeds in the arctic and subarctic regions of Eurasia and North America and winters further south on the Atlantic coast. Taxonomy The purple sandpiper was formally described in 1764 by the Danish zoologist Morten Thrane Brünnich and given the binomial name ''Tringa maratina''. This species was formerly placed in the genus ''Erolia''. It is now placed with 23 other sandpipers in the genus ''Calidris'' that was introduced in 1804 by the German naturalist Blasius Merrem. The genus name is from Ancient Greek ''kalidris'' or ''skalidris'', a term used by Aristotle for some grey-coloured waterside birds. The specific epithet ''maritima'' is from Latin and means "of the sea", from ''mare'', "sea". The purple sandpiper is treated as monotypic: no subspecies are recognised. Within the genus ''Calidris'' the purple sandpiper is sister to the rock sandpipe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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