White-winged Wood Duck

White-winged Wood Duck

Taxobox
name = White-winged Wood Duck
status = EN | status_system = IUCN3.1
trend = down


image_width = 225px
regnum = Animalia
phylum = Chordata
classis = Aves
ordo = Anseriformes
familia = Anatidae
genus = "Cairina" (but see text)
species = "C. scutulata"
binomial = "Cairina scutulata"
binomial_authority = (Müller, 1842)

The White-winged Wood Duck, "Cairina scutulata" is a species of duck, usually placed in the genus "Cairina" and allied with the dabbling ducks.

However, mtDNA cytochrome "b" and NADH dehydrogenase subunit 2 sequence analysis (Johnson & Sorenson, 1999) and the biogeographical pattern of distribution indicate that the anatomical similarity to the Muscovy Duck is deceiving. Thus, this species might more appropriately be placed in a monotypic genus, as "Asarcornis scutulata", which appears to be unrelated to the Muscovy Duck but closer to the diving ducks.

Historically, the White-winged Wood Duck was widely distributed from north-east India and Bangladesh, through South East Asia to Java and Sumatra. However, in 2002 it had a population of only 800, with about 200 in Laos, Thailand, Vietnam and Cambodia, 150 on Sumatra, notably in Way Kambas National Park and 450 in India, Bangladesh and Burma.

Due to ongoing habitat loss, small population size, and because this duck is hunted for eggs, pets and food, the White-winged Duck is evaluated as Endangered on the IUCN Red List of Threatened Species. It is listed on Appendix I of CITES.

References

* Database entry includes a range map, a brief justification of why this species is endangered, and the criteria used
* Johnson, Kevin P. & Sorenson, Michael D. (1999): Phylogeny and biogeography of dabbling ducks (genus Anas): a comparison of molecular and morphological evidence. "Auk" 116(3): 792–805. [http://elibrary.unm.edu/sora/Auk/v116n03/p0792-p0805.pdf PDF fulltext]

External links

* [http://www.birdlife.org/datazone/species/index.html?action=SpcHTMDetails.asp&sid=410&m=0 BirdLife Species Factsheet]


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