Mareca

Mareca
	Eurasian wigeon, Mareca penelope
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Anseriformes
Family:	Anatidae
Tribe:	Anatini
Genus:	Mareca; Stephens, 1824
Synonyms
	Anas;

Mareca is a genus or subgenus of duck in the family Anatidae that includes the wigeons.

The species now placed in this genus were formerly placed in the genus Anas. A molecular phylogentic study comparing mitochondrial DNA sequences published in 2009 found that the genus Anas, as then defined, was non-monophyletic.[1] Based on the published phylogeny, the genus Anas was split into four monophyletic genera with five extant species moved into the resurrected genus Mareca.[2]

The genus Mareca was introduced by the English naturalist James Francis Stephens in 1824. The type species is the Eurasian wigeon.[3][4] The name of the genus is from the Brazilian-Portuguese word Marréco for a small duck.[5]

Extant Species

The genus Mareca contains the following species:[2]

Scientific name	Common name	Distribution
Mareca strepera	Gadwall	Europe, Asia and central North America
Mareca falcata	Falcated teal	eastern Asia
Mareca penelope	Eurasian wigeon	Europe and Asia
Mareca sibilatrix	Chiloé wigeon	southern South America
Mareca americana	American wigeon	north of Canada and Alaska and also in the Interior West through Idaho, Colorado, the Dakotas and Minnesota, as well as eastern Washington and Oregon

Fossils

Image	Scientific name	Common name	Distribution
	Mareca marecula†	Amsterdam wigeon	extinct, formerly found on Île Amsterdam in the French Southern and Antarctic Lands

Phylogeny

Cladogram based on the analysis of Gonzalez and colleagues published in 2009.[1]

Mareca

	American wigeon

	Chiloé wigeon

Eurasian wigeon

	Falcated teal

	Gadwall

References

Gonzalez, J.; Düttmann, H.; Wink, M. (2009). "Phylogenetic relationships based on two mitochondrial genes and hybridization patterns in Anatidae". Journal of Zoology. 279: 310–318. doi:10.1111/j.1469-7998.2009.00622.x.
Gill, Frank; Donsker, David, eds. (2017). "Screamers, ducks, geese & swans". World Bird List Version 7.3. International Ornithologists' Union. Retrieved 23 July 2017.
Stephens, James Francis (1824). General zoology, or Systematic natural history, by the late George Shaw. Volume 12 Part 2. London: Printed for G. Kearsley. p. 130.
Mayr, Ernst; Cottrell, G. William, eds. (1979). Check-list of Birds of the World. Volume 1 (2nd ed.). Cambridge, Massachusetts: Museum of Comparative Zoology. p. 460.
Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 241. ISBN 978-1-4081-2501-4.

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[gonzalez-1] Gonzalez, J.; Düttmann, H.; Wink, M. (2009). "Phylogenetic relationships based on two mitochondrial genes and hybridization patterns in Anatidae". Journal of Zoology. 279: 310–318. doi:10.1111/j.1469-7998.2009.00622.x.

[ioc-2] Gill, Frank; Donsker, David, eds. (2017). "Screamers, ducks, geese & swans". World Bird List Version 7.3. International Ornithologists' Union. Retrieved 23 July 2017.

[3] Stephens, James Francis (1824). General zoology, or Systematic natural history, by the late George Shaw. Volume 12 Part 2. London: Printed for G. Kearsley. p. 130.

[4] Mayr, Ernst; Cottrell, G. William, eds. (1979). Check-list of Birds of the World. Volume 1 (2nd ed.). Cambridge, Massachusetts: Museum of Comparative Zoology. p. 460.

[5] Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 241. ISBN 978-1-4081-2501-4.