The Andean teal (''Anas andium'') is a

South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the southe ...

n species of

duck Duck is the common name for numerous species of waterfowl in the family Anatidae. Ducks are generally smaller and shorter-necked than swans and geese, which are members of the same family. Divided among several subfamilies, they are a form t ...

. Like other

teal alt=American teal duck (male), Green-winged teal (male) Teal is a greenish-blue colour. Its name comes from that of a bird — the Eurasian teal (''Anas crecca'') — which presents a similarly coloured stripe on its head. The word is ofte ...

s, it belongs to the diverse genus ''

Anas ''Anas'' is a genus of dabbling ducks. It includes the pintails, most teals, and the mallard and its close relatives. It formerly included additional species but following the publication of a molecular phylogenetic study in 2009 the genus wa ...

''; more precisely it is one of the "true" teals of

subgenus In biology, a subgenus (plural: subgenera) is a taxonomic rank directly below genus. In the International Code of Zoological Nomenclature, a subgeneric name can be used independently or included in a species name, in parentheses, placed between t ...

''Nettion''. It is restricted to the

Andean The Andes, Andes Mountains or Andean Mountains (; ) are the List of mountain ranges#Mountain ranges by length, longest continental mountain range in the world, forming a continuous highland along the western edge of South America. The range i ...

highlands of

Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car ...

Venezuela Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in th ...

, and

Ecuador Ecuador ( ; ; Quechua: ''Ikwayur''; Shuar: ''Ecuador'' or ''Ekuatur''), officially the Republic of Ecuador ( es, República del Ecuador, which literally translates as "Republic of the Equator"; Quechua: ''Ikwadur Ripuwlika''; Shuar: ''Eku ...

. It inhabits

freshwater Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the term specifically excludes seawater and brackish water, it does include ...

wetland A wetland is a distinct ecosystem that is flooded or saturated by water, either permanently (for years or decades) or seasonally (for weeks or months). Flooding results in oxygen-free (anoxic) processes prevailing, especially in the soils. The ...

s, preferring

palustrine Palustrine wetlands include any inland wetland that contains ocean-derived salts in concentrations of less than 0.5 parts per thousand, and is non-tidal. The word ''palustrine'' comes from the Latin word ''palus'' or marsh. Wetlands within this ca ...

habitat In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical ...

river A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases, a river flows into the ground and becomes dry at the end of its course without reaching another body of wate ...

s. It is not considered threatened by the

IUCN The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natu ...

Taxonomy

Mitochondrial DNA Mitochondrial DNA (mtDNA or mDNA) is the DNA located in mitochondria, cellular organelles within eukaryotic cells that convert chemical energy from food into a form that cells can use, such as adenosine triphosphate (ATP). Mitochondrial D ...

sequence In mathematics, a sequence is an enumerated collection of objects in which repetitions are allowed and order matters. Like a set, it contains members (also called ''elements'', or ''terms''). The number of elements (possibly infinite) is calle ...

data is most similar to that of the very different-looking

green-winged teal The green-winged teal (''Anas carolinensis'') is a common and widespread duck that breeds in the northern areas of North America except on the Aleutian Islands. It was considered Conspecificity, conspecific with the Eurasian teal (''A. crecca'') ...

. Apart from the mystifying relationship with the red-and-green-headed teals, it altogether most resembles the

Indian Ocean The Indian Ocean is the third-largest of the world's five oceanic divisions, covering or ~19.8% of the water on Earth's surface. It is bounded by Asia to the north, Africa to the west and Australia to the east. To the south it is bounded by th ...

radiation of teals. Traditionally, there are 2

subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...

: * Mérida teal, ''Anas andium altipetens'' (

Conover Conover may refer to: People * Conover (surname) Places in the United States * Conover, Iowa, a ghost town * Conover, North Carolina, a city * Conover, Ohio, an unincorporated community * Conover, Wisconsin, a town * Conover (community), Wisconsi ...

, 1941) – highlands of north-west Venezuela and adjacent parts of Colombia. * nominate, ''Anas andium andium'' (

Sclater Philip Lutley Sclater (4 November 1829 – 27 June 1913) was an English lawyer and zoologist. In zoology, he was an expert ornithologist, and identified the main zoogeographic regions of the world. He was Secretary of the Zoological Society o ...

& Salvin, 1873) - highlands of Colombia and Ecuador. This species and the

yellow-billed teal The yellow-billed teal (''Anas flavirostris'') is a South American species of duck. Like other teals, it belongs to the diverse genus ''Anas''; more precisely it is one of the "true" teals of subgenus ''Nettion''. It occurs in Argentina, the Fa ...

are sometimes considered

conspecific Biological specificity is the tendency of a characteristic such as a behavior or a biochemical variation to occur in a particular species. Biochemist Linus Pauling stated that "Biological specificity is the set of characteristics of living organ ...

under the name speckled teal (''A. flavirostris''), but increasingly taxonomists treat the two as distinct species. When split, the scientific name ''A. flavirostris'' is restricted to the yellow-billed teal.Van Remsen (2008)

Footnotes

References

* Accordi, Iury Almeida & Barcellos, André (2006): Composição da avifauna em oito áreas úmidas da Bacia Hidrográfica do Lago Guaíba, Rio Grande do Sul ird composition and conservation in eight wetlands of the hydrographic basin of Guaíba lake, State of Rio Grande do Sul, Brazil ''Revista Brasileira de Ornitologia'' 14(2): 101-115 ortuguese with English abstractbr>PDf fulltext
* Carboneras, Carles (1992): 77. Speckled Teal. ''In:'' del Hoyo, Josep; Elliott, Andrew & Sargatal, Jordi (eds.): ''

Handbook of Birds of the World The ''Handbook of the Birds of the World'' (HBW) is a multi-volume series produced by the Spanish publishing house Lynx Edicions in partnership with BirdLife International. It is the first handbook to cover every known living species of bird. Th ...

'' (Vol.1: Ostrich to Ducks): 603, plate 45. Lynx Edicions, Barcelona. * Johnson, Kevin P. & Sorenson, Michael D. (1999): Phylogeny and biogeography of dabbling ducks (genus Anas): a comparison of molecular and morphological evidence. ''

Auk An auk or alcid is a bird of the family Alcidae in the order Charadriiformes. The alcid family includes the murres, guillemots, auklets, puffins, and murrelets. The word "auk" is derived from Icelandic ''álka'', from Old Norse ''alka'' (a ...

'' 116(3): 792–805
DjVu fulltextPDF fulltext
* Van Remsen (2008)
Treat Anas andium as a separate species from Anas flavirostris.
' South American Classification Committee. Accessed 27-04-2008 {{Taxonbar, from=Q524270

Andean teal The Andean teal (''Anas andium'') is a South American species of duck. Like other teals, it belongs to the diverse genus '' Anas''; more precisely it is one of the "true" teals of subgenus ''Nettion''. It is restricted to the Andean highlands o ...

Birds of the Andes Birds of the Colombian Andes Birds of the Venezuelan Andes Birds of the Ecuadorian Andes

Taxa named by Philip Sclater Taxa named by Osbert Salvin