Aythya

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Aythya
Aythya ferina Sandwell 2.jpg
Common pochard (Aythya ferina)
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Anseriformes
Family: Anatidae
Tribe: Aythyini
Genus: Aythya
F. Boie, 1822
Species

12 species, see text

Aythya is a genus of diving ducks. It has twelve described species. The name Aythya comes from the Ancient Greek word αυθυια, aithuia, which may have referred to a sea-dwelling duck or an auklet.[1]

Aythya shihuibas was described from the Late Miocene of China. Zelenkov (2016) transferred the species Anas denesi Kessler (2013), known from the late Miocene of Hungary, to the genus Aythya.[2] An undescribed prehistoric species is known only from Early Pleistocene fossil remains found at Dursunlu, Turkey;[3] it might however be referrable to a paleosubspecies of an extant species considering its age (see also Greater scaup).

The Miocene[verification needed] "Aythya" arvernensis is now placed in Mionetta, while "Aythya" chauvirae seems to contain the remains of two species, at least one of which does not seem to be a diving duck.[4]

Aythya species[edit]

Image Scientific name Common Name Distribution Conservation status
Canvasback (male) - Aythya valisineria, Oakley Street, Cambridge, Maryland.jpg A. valisineria Canvasback North America least concern
Aythya ferina Finsbury 1.jpg A. ferina Common pochard northern Europe into Asia least concern
Redhead - Aythya americana, Oakley Street, Cambridge, Maryland.jpg A. americana Redhead North America, from as far north as Northern Canada to the lower United States least concern
AythyaCollaris 4951.JPG A. collaris Ring-necked duck northern United States and Canada least concern
Hardhead male drip.jpg A. australis Hardhead Australia, New Guinea, New Zealand, and the islands of the Pacific least concern
Baer's Pochard RWD4.jpg A. baeri Baer's pochard southeast Russia and northeast China, migrating in winter to southern China, Vietnam, Japan, and India critically endangered
Aythya nyroca at Martin Mere 1.jpg A. nyroca Ferruginous duck from Iberia and the Maghreb east to western Mongolia, south to Arabia near threatened
Madagascar Pochard, Captive Breeding Program, Madagascar 4.jpg A. innotata Madagascar pochard Madagascar critically endangered
NZ Scaup 01.jpg A. novaeseelandiae New Zealand scaup New Zealand. least concern
Tufted Duck Aythya fuligula Male by Dr. Raju Kasambe DSCN9795 (16).jpg A. fuligula Tufted duck Throughout temperate and northern Eurasia. Also United States and Canada least concern
Greater-scaup-male2.jpg A. marila Greater scaup Alaska, northern Canada, Siberia, and the northernmost reaches of Europe least concern
Greater scaup male.jpg A. affinis Lesser scaup Alaska through western Canada to western Montana, Central America least concern

Phylogeny[edit]

Based on the Taxonomy in Flux from John Boyd's website.[5]


(Nyroca)

?A. baeri (Radde 1863) (Baer's pochard)

?A. innotata (Salvadori 1894) (Madagascan pochard)

A. nyroca (Güldenstädt 1769) (Ferruginous duck)

A. australis (Eyton 1838) (Hardhead)

(Aristonetta)

A. americana (Eyton 1838) (Redhead)

A. ferina (Linnaeus 1758) (Common pochard)

A. valisineria (Wilson 1814) (Canvasback)

(Aythya)

A. affinis (Eyton 1838) (Lesser scaup)

A. marila (Linnaeus 1761) (Greater scaup)

?A. novaeseelandiae (Gmelin 1789) (papango; New Zealand scaup)

?A. collaris (Donovan 1809) (Ring-necked duck)

A. fuligula (Linnaeus 1758) (Tufted duck)

See also[edit]

References[edit]

  1. ^ Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 64. ISBN 978-1-4081-2501-4.
  2. ^ Nikita V. Zelenkov (2016). "РЕВИЗИЯ НЕВОРОБЬИНЫХ ПТИЦ ПОЛГАРДИ (ВЕНГРИЯ, ВЕРХНИЙ МИОЦЕН). 1. Anseriformes". Paleontological Journal. 50 (5).
  3. ^ Louchart, Antoine; Mourer-Chauviré, Cécile; Guleç, Erksin; Howell, Francis Clark & White, Tim D. (1998): L'avifaune de Dursunlu, Turquie, Pléistocène inférieur: climat, environnement et biogéographie. C. R. Acad. Sci. Paris IIA 327(5): 341-346. [French with English abridged version] doi:10.1016/S1251-8050(98)80053-0 (HTML abstract)
  4. ^ Worthy, Trevor H.; Tennyson, A.J.D.; Jones, C.; McNamara, J.A. & Douglas, B.J. (2007): Miocene waterfowl and other birds from central Otago, New Zealand. J. Syst. Palaeontol. 5(1): 1-39. doi:10.1017/S1477201906001957 (HTML abstract)
  5. ^ Taxonomy in Flux [1] Boyd, John (2007). "Aythyini" (PDF). Retrieved 30 August 2016.