Animalia > Chordata > Aves > Anseriformes > Anatidae > Anas > Anas sibilatrix

Anas sibilatrix (Chiloe Wigeon)

Synonyms: Mareca sibilatrix (homotypic)

Wikipedia Abstract

The Chiloé wigeon (Anas sibilatrix), also known as the southern wigeon, is one of three extant species of wigeon in the genus Anas of the dabbling duck subfamily. This bird is indigenous to the southern part of South America, including the Chiloé Archipelago.In its native range, it is called the pato overo ("piebald duck") or pato real ("royal duck"), although the latter name also refers to the Muscovy in the wild.Its specific epithet, sibilatrix, means 'whistler', referring to the bird's call.
View Wikipedia Record: Anas sibilatrix

EDGE Analysis

Uniqueness Scale: Similiar (0) 
0
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
6
 Unique & Vulnerable (100)
ED Score: 2.10772
EDGE Score: 1.13389
Learn more at EDGE of Existence programme

Attributes

Adult Weight [1]  2.057 lbs (933 g)
Birth Weight [2]  53 grams
Female Weight [1]  1.753 lbs (795 g)
Male Weight [1]  2.363 lbs (1.072 kg)
Weight Dimorphism [1]  34.8 %
Diet [3]  Herbivore
Diet - Plants [3]  100 %
Forages - Ground [3]  70 %
Forages - Water Surface [3]  30 %
Clutch Size [5]  6
Clutches / Year [1]  1
Incubation [4]  25 days
Snout to Vent Length [1]  19 inches (49 cm)

Ecoregions

Protected Areas

Biodiversity Hotspots

Name Location Endemic Species Website
Atlantic Forest Argentina, Brazil, Paraguay, Uruguay No
Chilean Winter Rainfall-Valdivian Forests Chile No

Prey / Diet

Argentina anserina egedei (Pacific Silverweed)[4]
Polygonum aviculare (Prostrate knotweed)[6]

Prey / Diet Overlap

Consumers

Parasitized by 
Capillaria anatis[7]
Cloacotaenia megalops[7]

Range Map

External References

Citations

Attributes / relations provided by
♦ 1Nathan P. Myhrvold, Elita Baldridge, Benjamin Chan, Dhileep Sivam, Daniel L. Freeman, and S. K. Morgan Ernest. 2015. An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96:3109
♦ 2Terje Lislevand, Jordi Figuerola, and Tamás Székely. 2007. Avian body sizes in relation to fecundity, mating system, display behavior, and resource sharing. Ecology 88:1605
♦ 3Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
♦ 4del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
♦ 5Jetz W, Sekercioglu CH, Böhning-Gaese K (2008) The Worldwide Variation in Avian Clutch Size across Species and Space PLoS Biol 6(12): e303. doi:10.1371/journal.pbio.0060303
♦ 6Agüero, M. L., Borboroglu, P. G., & Esler, D. (2014). Trophic ecology of breeding white-headed steamer-duck (Tachyeres leucocephalus). Waterbirds, 37(1), 88-93.
♦ 7Gibson, D. I., Bray, R. A., & Harris, E. A. (Compilers) (2005). Host-Parasite Database of the Natural History Museum, London
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0