Speckled Teal

Speckled Teal

Taxobox
name = Speckled Teal Andean Teal


image_width = 240px
status = LC
status_system = IUCN3.1
image_caption = Sharp-winged Teal, "A. f. oxyptera"
regnum = Animalia
phylum = Chordata
classis = Aves
ordo = Anseriformes
familia = Anatidae
genus = "Anas"
species = "A. flavirostris"
binomial = "Anas flavirostris"
binomial_authority = Vieillot, 1816
subdivision_ranks = Subspecies
subdivision = 4, see text

The Speckled Teal ("Anas flavirostris") is a South American duck species. Like other teals, it belongs to the diverse genus "Anas".

Mitochondrial DNA sequence data is most similar to that of the very different-looking Green-winged Teal [Johnson & Sorenson (1999); see there for a discussion of the "crecca-carolinensis-flavirostris" group's phylogeny.] . Apart from the mystifying relationship with the red-and-green-headed teals, it altogether most resembles the Indian Ocean radiation of teals. But the Yellow-billed Teal's unicolored underside and namesake bill are unique, as is to be expected from a species that evolved half a world apart from Bernier's or the Grey Teal.

This species is also unique among its relatives in some aspects of its post-copulation behavior: After dismounting, the drakes stretch themselves up high and swim around and alongside the females. [Johnson "et al." (2000)]

There are 4 subspecies; the Andean Teal is sometimes regarded as a distinct species: [Carboneras (1992)]
* Andean Teal, "Anas (flavirostris) andium"
* Sharp-winged Teal, "Anas flavirostris oxyptera"
* Merida Teal, "Anas flavirostris altipetens"
* Chilean Teal, "Anas flavirostris flavirostris"

Footnotes

References

*|year=2004|id=47203|title=Anas flavirostris|downloaded=09 May 2006 Database entry includes justification for why this species is of least concern
* (1992): 77. Speckled Teal. "In:" aut|del Hoyo, Josep; Elliott, Andrew & Sargatal, Jordi (eds.): "Handbook of Birds of the World" (Vol.1: Ostrich to Ducks): 603, plate 45. Lynx Edicions, Barcelona. ISBN 84-87334-10-5
* (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/DJVU/P0792-P0805.djvu DjVu fulltext] [http://elibrary.unm.edu/sora/Auk/v116n03/p0792-p0805.pdf PDF fulltext]
* (2000): The evolution of postcopulatory displays in dabbling ducks (Anatini): a phylogenetic perspective. "Animal Behaviour" 59(5): 953–963 [http://ducksrus.bu.edu/~msoren/pubs/AnimBehav2000b.pdf PDF fulltext]


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