Mareca

Mareca
Eurasian wigeon, Mareca penelope
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Anseriformes
Family:	Anatidae
Tribe:	Anatini
Genus:	Mareca Stephens, 1824
Type species
Anas penelope Linnaeus, 1758
Synonyms
Anas

Mareca is a genus or subgenus of ducks 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 not 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 English naturalist James Francis Stephens in 1824. The type species is the Eurasian wigeon. ^{[3] [4]} The name of the genus is from the Portuguese word Marreco for a small duck. ^[5]

Species

The genus Mareca contains five extant species and one extinct species: ^[2]

Genus Mareca – Stephens, 1824 – two species

Common name	Scientific name and subspecies	Range	Size and ecology	IUCN status and estimated population
Gadwall Male Female	Mareca strepera (Linnaeus, 1758) two subspecies M. s. strepera(Linnaeus, 1758) †M. s. couesi(Streets, 1876)	Europe, Asia and central North America	Size: Habitat: Diet:	LC
Falcated duck Male Female	Mareca falcata (Georgi, 1775)	Eastern Asia	Size: Habitat: Diet:	LC
Eurasian wigeon Male Female	Mareca penelope (Linnaeus, 1758)	Europe and Asia	Size: Habitat: Diet:	LC
Chiloé wigeon Male Female	Mareca sibilatrix (Poeppig, 1829)	Southern South America	Size: Habitat: Diet:	LC
American wigeon Male Female	Mareca americana (Gmelin, JF, 1789)	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	Size: Habitat: Diet:	LC
† Amsterdam wigeon	Mareca marecula (Olson & Jouventin, 1996)	Île Amsterdam in the French Southern and Antarctic Lands	Size: Habitat: Diet:	EX

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

1. Gonzalez, J.; Düttmann, H.; Wink, M. (2009). "Phylogenetic relationships based on two mitochondrial genes and hybridization patterns in Anatidae". Journal of Zoology. 279 (3): 310–318. doi:10.1111/j.1469-7998.2009.00622.x.
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. Vol. 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. Vol. 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.