Magpie-goose 431483 224071437 2008-07-07T04:44:10Z Deargan 3617931 /* References */ + {{Taxobox | name = Magpie-goose | image = Spaltfußgans 050807.jpg | image_width = 200px | status = LC | status_system = iucn3.1 | regnum = [[Animalia]] | phylum = [[Chordata]] | classis = [[Aves]] | subclassis = [[Neornithes]] | infraclassis = [[Neognathae]] | superordo = [[Galloanserae]] | ordo = [[Anseriformes]] | familia = '''Anseranatidae''' | familia_authority = [[Philip Sclater|Sclater]], 1880 | genus = '''''Anseranas''''' | genus_authority = [[Rene Primevere Lesson|Lesson]], 1828 | species = '''''A. semipalmata''''' | binomial = ''Anseranas semipalmata'' | binomial_authority = [[John Latham (ornithologist)|Latham]], 1798 }} The '''Magpie-goose''', '''''Anseranas semipalmata''''', is a [[waterbird]] [[species]] found in [[Australia]] and [[New Guinea]]. It is a unique member of the [[order (biology)|order]] [[Anseriformes]], and arranged in a [[Family (biology)|family]] and [[genus]] distinct form all other living waterfowl. The Magpie-goose is a resident breeder in northern [[Australia]] and in southern [[New Guinea]]. ==Description== Magpie-geese are unmistakable birds with their black and white plumage and yellowish legs. The feet are only partially webbed, although the Magpie-goose will feed on vegetable matter in the water as well as on land. Males are larger than females. Unlike true [[anserinae|geese]], the [[moult]] is gradual, and there is no flightless period. The voice is a loud honking. ===Gallery=== <gallery> Image:Magpie Goose444.jpg|Facial markings Image:Magpie_Goose.JPG|Magpie Goose, Australia Image:Magpie Geese at the Kimberlies WA Australia.jpg|Magpie Geese, Kimberlies, Western Australia image:Magpie Goose taking off.jpg|Taking off </gallery> ==Systematics and evolution== This species is placed in the [[order (biology)]] [[Anseriformes]], having the characteristic bill structure, but is considered to be distinct from the other species in this [[taxon]]. The related and extant families, [[Anhimidae]] ([[screamer]]s) and [[Anatidae]] ([[duck]]s, [[goose|geese]] and [[swan]]s), contain all the other taxa. The Magpie-goose is contained in the genus '''Anseranas''' and family '''Anseranatidae''', which are [[monotypic]] in our age.<ref>Myers ''et al.'' (2008)</ref> This family is quite old, having apparently diverged before the [[Cretaceous–Paleogene mass extinction]] - the relative ''[[Vegavis iaai]]'' lived some 68-67 [[million years ago]]. The [[fossil]] record is limited, nonetheless. The enigmatic genus ''[[Anatalavis]]'' ([[Hornerstown Formation|Hornerstown]] [[Late Cretaceous]] or [[Early Paleocene]] of New Jersey, USA - [[London Clay]] [[Early Eocene]] of [[Walton-on-the-Naze]], England) is sometimes considered to be the earliest known anseranatid. Other [[Paleogene]] birds sometimes considered magpie-geese are the genera ''[[Geranopsis]]'' from the [[Hordwell Formation]] [[Late Eocene]] to the [[Early Oligocene]] of England<!-- BullAMNH151:1 --> and ''[[Anserpica]]'' from the [[Late Oligocene]] of [[Billy, Allier|Billy]]-[[Créchy]] ([[France]])<ref>Hugueney ''et al'' (2003)</ref>. The Australian distribution of the living species ties in well with the presumed [[Gondwana]]n origin of [[Anseriformes]], but Northern Hemisphere fossils are puzzling. Perhaps the magpie-geese were one of the dominant groups of Paleogene waterfowl, only to become largely extinct later. ==Ecology and status== The Magpie-goose is found in a variety of open [[wetland]] areas such as [[floodplain]]s and [[swamp]]s. It is fairly sedentary apart from some movement during the dry season. They are colonial breeders and are gregarious outside of the breeding season when they can form large and noisy flocks of up to a few thousand individuals. Its nest is on the ground, and a typical [[clutch (eggs)|clutch]] is 5-14 eggs. Some males mate with two females. This species is plentiful across its range. For Australia as a whole, it is not threatened and has a controlled hunting season when numbers are large. However, most of the southern populations were extirpated in the mid-20th century by [[overhunting]] and [[habitat destruction]]. The species has been subject to [[reintroduction]] projects, and populations have again reached a level where it can be regularly utilized by hunters. In [[Victoria (Australia)|Victoria]], the Magpie Goose was listed as [[near threatened]] on the 2007 advisory list of threatened vertebrate fauna in Victoria<ref> VDSE (2007a)</ref>. In the December 2007 [[Flora and Fauna Guarantee Act]] list of threatened fauna, it is also listed<ref>The FFGA list does not distinguish different threat categories.</ref><ref> VDSE (2007c)</ref>. As of early 2008, an Action Statement for the recovery and future management of this species had not been prepared<ref> VDSE (2007b)</ref>. ==Footnotes== {{reflist}} ==References== * {{IUCN2006|assessors={{aut|[[BirdLife International]]}}|year=2004|id=47120|title=Anseranas semipalmata|downloaded=11 May 2006}} * {{aut|Carboneras, C.}} (1992). Family Anatidae (Ducks, Geese and Swans). Pp.536-630 in; del Hoyo, J., Elliott, A. & Sargatal, J. eds. Handbook of the Birds of the World, Vol 1, Ostrich to Ducks. Lynx Edicions, Barcelona. ISBN 8487334091 * {{aut|Hugueney, Marguerite; Berthet, Didier; Bodergat, Anne-Marie; Escuillié, François; Mourer-Chauviré, Cécile & Wattinne, Aurélia}} (2003): La limite Oligocène-Miocène en Limagne: changements fauniques chez les mammifères, oiseaux et ostracodes des différents niveaux de Billy-Créchy (Allier, France) [The Oligocene-Miocene boundary in Limagne: faunal changes in the mammals, birds and ostracods from the different levels of Billy-Créchy (Allier, France)] [French with English abstract]. ''[[Geobios]]'' '''36'''(6): 719–731. <small>{{doi|10.1016/j.geobios.2003.01.002}}</small> (HTML abstract) * {{aut|Madge, Steve & Burn, Hilary}} (1987): ''Wildfowl : an identification guide to the ducks, geese and swans of the world''. [[Helm Identification Guides|Christopher Helm]], London. <small>ISBN 0-7470-2201-1</small> * {{aut|Myers, P.; Espinosa, R.; Parr, C.S.; Jones, T.; Hammond, G.S. & Dewey, T.A.}} (2008): [[Animal Diversity Web]] - [http://animaldiversity.ummz.umich.edu/site/accounts/classification/Anseranatidae.html Family Anseranatidae]. Retrieved 2008-JUN-16. * {{aut|Pringle, J.D.}} (1985): ''The Waterbirds of Australia''. National Photographic Index of Australian Wildlife, Australian Museum/Angus and Robertson, Sydney. * {{aut|Victoria Department of Sustainability and Environment (VDSE)}} (2007a): Advisory List of Threatened Vertebrate Fauna in Victoria - 2007. Department of Sustainability and Environment, East Melbourne, Victoria <small>ISBN 978-1-74208-039-0</small> [http://www.dpi.vic.gov.au/CA256F310024B628/0/C6CBD5DCFD80B465CA257338001024AB/$File/Advisory+List+of+Threatened+Vertebrate+Fauna+in+Victoria+-+2007.pdf PDF fulltext] * {{aut|Victoria Department of Sustainability and Environment (VDSE)}} (2007b): [http://www.dse.vic.gov.au/DSE/nrenpa.nsf/LinkView/617768308BCB666E4A25684E00192281E7A24BB36FF60A144A256DEA00244294 Flora and Fauna Guarantee Act of 1988: Index of Approved Action Statements]. Version of 2007-OCT-29. Retrieved 2008-JUN-16. * {{aut|Victoria Department of Sustainability and Environment (VDSE)}} (2007c): Flora and Fauna Guarantee Act of 1988 - Threatened List December 2007. [http://www.dse.vic.gov.au/CA256F310024B628/0/85E7C7E01F8825EDCA2573CB007E8B26/$File/FFG+threatened+list+December+2007.pdf PDF fulltext] ==External links== {{commonscat|Anseranas semipalmata}} * [http://www.birdlife.org/datazone/species/index.html?action=SpcHTMDetails.asp&sid=346&m=0 BirdLife Species Factsheet] [[Category:Anseranatidae]] [[Category:Geese]] [[Category:Birds of South Australia]] [[Category:Birds of Western Australia]] [[Category:Birds of New Guinea]] [[Category:Birds of Indonesia]] [[da:Skadegås]] [[de:Spaltfußgans]] [[es:Anseranas semipalmata]] [[fr:Canaroie semipalmé]] [[fy:Ekstergoes]] [[ko:까치기러기]] [[pl:Bezpłetwiec]] [[ru:Полулапчатый гусь]] [[fi:Puuhanhi]] [[sv:Skatgås]] [[vi:Ngỗng bồ các]] [[zea:Eksterhanze]] [[zh:鵲鵝]]