Animalia > Chordata > Aves > Anseriformes > Anatidae > Anas > Anas superciliosa

Anas superciliosa (Pacific Black Duck; Gray Duck)

Synonyms: Anas oustaleti (heterotypic); Aythya robusta; Nyroca robusta

Wikipedia Abstract

The Pacific black duck (Anas superciliosa) is a dabbling duck found in much of Indonesia, New Guinea, Australia, New Zealand, and many islands in the southwestern Pacific, reaching to the Caroline Islands in the north and French Polynesia in the east. It is usually called the grey duck in New Zealand, where it is also known by its Maori name, pārera.
View Wikipedia Record: Anas superciliosa

Infraspecies

Anas superciliosa pelewensis (Palau Island grey duck)
Anas superciliosa rogersi (Australian black duck)
Anas superciliosa superciliosa (New Zealand grey duck)

EDGE Analysis

Uniqueness Scale: Similiar (0) 
0
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
2
 Unique & Vulnerable (100)
ED Score: 1.54402
EDGE Score: 0.933745
Learn more at EDGE of Existence programme

Attributes

Adult Weight [1]  2.121 lbs (962 g)
Birth Weight [2]  63 grams
Female Weight [4]  2.163 lbs (981 g)
Male Weight [4]  2.401 lbs (1.089 kg)
Weight Dimorphism [4]  11 %
Diet [3]  Carnivore (Invertebrates), Granivore, Herbivore
Diet - Invertibrates [3]  10 %
Diet - Plants [3]  60 %
Diet - Seeds [3]  30 %
Forages - Water Surface [3]  80 %
Forages - Underwater [3]  20 %
Clutch Size [6]  9
Clutches / Year [1]  1
Incubation [5]  29 days
Mating Display [2]  Ground display (mostly)
Mating System [2]  Monogamy
Snout to Vent Length [1]  21 inches (54 cm)
Wing Span [5]  34 inches (.87 m)

Ecoregions

Protected Areas

Biodiversity Hotspots

Predators

Accipiter fasciatus (Brown Goshawk)[5]
Circus approximans (Swamp Harrier)[5]

Consumers

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
♦ 4Marchant, S.; Higgins, PJ (eds.) 1990. The handbook of Australian, New Zealand and Antarctic birds, Vol. 1., ratites to ducks. Oxford University Press, Melbourne
♦ 5del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
♦ 6Jetz 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
♦ 7Species Interactions of Australia Database, Atlas of Living Australia, Version ala-csv-2012-11-19
♦ 8Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
♦ 9Gibson, 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