Anseranas semipalmata

Anseranas semipalmata , Photo: Adrian Pingstone

Ελληνικά : Ασπρομέτωπη Χήνα

The greater white-fronted goose (Anser albifrons) is a species of goose related to the smaller lesser white-fronted goose (A. erythropus). It is named for the patch of white feathers bordering the base of its bill, in fact albifrons comes from the Latin albus "white" and frons "forehead".[2] In Europe it has been known as the white-fronted goose; in North America it is known as the greater white-fronted goose (or "greater whitefront"), and this name is also increasingly adopted internationally.[1] Even more distinctive are the salt-and-pepper markings on the breast of adult birds, which is why the goose is colloquially called the "specklebelly" in North America.
Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Archosauromorpha
Cladus: Crurotarsi
Divisio: Archosauria
Cladus: Avemetatarsalia
Cladus: Ornithodira
Subtaxon: Dinosauromorpha
Cladus: Dinosauriformes
Cladus: Dracohors
Cladus: Dinosauria
Ordo: Saurischia
Cladus: Eusaurischia
Subordo: Theropoda
Cladus: Neotheropoda
Cladus: Averostra
Cladus: Tetanurae
Cladus: Avetheropoda
Cladus: Coelurosauria
Cladus: Tyrannoraptora
Cladus: Maniraptoromorpha
Cladus: Maniraptoriformes
Cladus: Maniraptora
Cladus: Pennaraptora
Cladus: Paraves
Cladus: Eumaniraptora
Cladus: Avialae
Infraclassis: Aves
Cladus: Euavialae
Cladus: Avebrevicauda
Cladus: Pygostylia
Cladus: Ornithothoraces
Cladus: Ornithuromorpha
Cladus: Carinatae
Parvclassis: Neornithes
Cohors: Neognathae
Cladus: Pangalloanserae
Cladus: Galloanseres
Ordo: Anseriformes
Familia: Anseranatidae
Genus: Anseranas
Species: Anseranas semipalmata
Name

Anseranas semipalmata (Latham, 1798)

Original combination: Anas semipalmata

References

Transactions of the Linnean Society of London (1) 4 p.103

Vernacular names
čeština: Husovec strakatý;Husovecstračí
dansk: Skadegås
Deutsch: Spaltfußgans
English: Magpie-goose
Esperanto: Anseranasedoj
español: Ganso urraca
suomi: Puuhanhi
français: Canaroie semipalmé
Frysk: Spaltpoatguozzen
magyar: Ujjas lúd, hasadtujjú lúd
日本語: カササギガン科
lietuvių: Skeltapėdės žąsys
norsk: Skjæregås
polski: Bezpłetwiec
русский: Полулапчатый гусь
svenska: Skatgås

The magpie goose (Anseranas semipalmata) is the sole living representative species of the family Anseranatidae. This common waterbird is found in northern Australia and southern New Guinea.[2] As the species is prone to wandering, especially when not breeding, it is sometimes recorded outside its core range.[2] The species was once also widespread in southern Australia, but disappeared from there largely due to the drainage of the wetlands where the birds once bred. Due to their importance to Aboriginal people as a seasonal food source,[3] as subjects of recreational hunting,[4] and as a tourist attraction, their expansive and stable presence in northern Australia has been "ensured protective management".[5]

Description

Magpie geese are unmistakable birds with their black and white plumage and yellowish legs. The feet are only partially webbed, and the magpie goose feeds on vegetable matter in the water, as well as on land. Males are larger than females. Unlike true geese, their moult is gradual, so no flightless periods result. Their voice is a loud honking.
Magpie goose youngster stands proud with his parents in the background
Systematics and evolution

This species is placed in the order 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 (screamers) and Anatidae (ducks, geese, and swans), contain all the other taxa. The magpie goose is contained in the genus Anseranas and family Anseranatidae, which are monotypic now.[6]
Magpie Goose taking off.jpg

A cladistic study of the morphology of waterfowl found that the magpie goose was an early and distinctive offshoot, diverging after screamers and before all other ducks, geese, and swans.[7]

This family is quite old, a living fossil, having apparently diverged before the Cretaceous–Paleogene extinction event — the relative Vegavis iaai lived some 68-67 million years ago. The fossil record is limited, nonetheless. The enigmatic genus Anatalavis (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 and Anserpica from the Late Oligocene of Billy-Créchy (France).[8]

The earliest known member of the group in Australia is Eoanseranas represented by fossils found in the late Oligocene Carl Creek Limestone of Queensland.[9] Additional fossils from North America and Europe suggest that the family was spread across the globe during the late Paleogene period.[10] The Australian distribution of the living species ties in well with the presumed Gondwanan 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.[original research?]
Ecology and status
Magpie goose colony at Serendip Sanctuary
Magpie Goose on nest
Anseranas semipalmata - MHNT

The magpie goose is found in a variety of open wetland areas such as floodplains and swamps, where they wade and swim. They eat mostly vegetation such as dry grass blades, grass seeds, spike rush bulbs and wild rice.[11]

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 (also in trees 5 m or more high), and a typical clutch is 5-14 eggs. Some males mate with two females, all of which raise the young, unlike some other polygamous birds. This may be beneficial when predation of young is high as chicks raised by trios are more likely to survive.

This species is plentiful across its range, although this is significantly reduced in comparison to the range at time of European settlement. The range once extended as far south as the Coorong and the wetlands of the southeast of South Australia and Western Victoria. 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 such as Bool Lagoon between Penola and Naracoorte. Populations in more northern areas have again reached a level where it can be regularly utilized by hunters, although not in the example provided. The magpie goose was listed as near threatened on the 2007 advisory list of threatened vertebrate fauna in Victoria.[12] In the December 2007 Flora and Fauna Guarantee Act list of threatened fauna, it is also listed.[13][14] As of early 2008, an Action Statement for the recovery and future management of this species had not been prepared.[15]

With the advent of climate change, and more frequent seawater inundations of the current extensive freshwater floodplains, CSIRO scientists argue that magpie geese populations may be at risk.[16]
In Aboriginal languages

The Kunwinjku of western Arnhem Land know this bird as manimunak.[17] It became an important food item with the formation of wetlands about 1500 ya, and is depicted in rock art from this period. Mimi figures are often shown holding goose-feather fans.[18] In Yolŋu Matha the bird is known as gurrumaṯtji,[19] or around Ramingining as gumang.[20]
See also

Magpie duck

References

BirdLife International (2016). "Anseranas semipalmata". IUCN Red List of Threatened Species. 2016: e.T22679732A92826979. doi:10.2305/IUCN.UK.2016-3.RLTS.T22679732A92826979.en. Retrieved 12 November 2021.
Carboneras, C. (1992). del Hoyo, J.; Elliott, A.; Sargatal, J. (eds.). Magpie Goose. Handbook of the Birds of the World. Vol. 1. Lynx Edicions. pp. 574–575. ISBN 84-87334-10-5.
Whitehead, P. J., M. Storrs, M. McKaige, R. Kennett, and M. Douglas. 2000. Wise use of wetlands in northern Australia: indigenous use. Centre for Tropical Wetlands Management and Centre for Indigenous Natural and Cultural Resource Management. Northern Territory University, Darwin.
Whitehead, PJ; Bayliss, P; Fox, RE (1988). "Recreational Waterfowl Hunting Activity and Harvests in Northern-Territory, Australia". Wildlife Research. 15 (6): 625. doi:10.1071/wr9880625. ISSN 1035-3712.
Traill, Lochran William (2009). Conservation of north Australian magpie geese Anseranas semipalmata populations under global change (PDF) (PhD Dissertation). p. 13.
Myers, P.; Espinosa, R.; Parr, C.S.; Jones, T.; Hammond, G.S. & Dewey, T.A. (2008): Animal Diversity Web - Family Anseranatidae.
Livezey, Bradley C. (1986). "A phylogenetic analysis of recent anseriform genera using morphological characters" (PDF). Auk. 103 (4): 737–754. doi:10.1093/auk/103.4.737.
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)]. Geobios. 36 (6): 719–731. doi:10.1016/j.geobios.2003.01.002.
Worthy, Trevor H.; Scanlon, J.D. (2009). "An Oligo-Miocene Magpie Goose (Aves: Anseranatidae) from Riversleigh, northwestern Queensland, Australia". Journal of Vertebrate Paleontology. 29 (1): 205–211. doi:10.1671/039.029.0103. S2CID 129930435.
Worthy, T. H. & Scanlon, J. D. (2009). "An Oligo-Miocene Magpie Goose (Aves: Anseranatidae) from Riversleigh, Northwestern Queensland, Australia". Journal of Vertebrate Paleontology. 29 (1): 205–211. doi:10.1671/039.029.0103. S2CID 129930435.
Wilber, R. (2008). "Anseranas semipalmata". Animal Diversity Web. University of Michigan. Retrieved 2019-10-24.
Victoria Department of Sustainability and Environment (2007): Advisory List of Threatened Vertebrate Fauna in Victoria - 2007. Department of Sustainability and Environment, East Melbourne, Victoria, ISBN 978-1-74208-039-0
The FFGA list does not distinguish different threat categories.
Victoria Department of Sustainability and Environment (2007): Flora and Fauna Guarantee Act of 1988 - Threatened List December 2007.
Victoria Department of Sustainability and Environment (2007): Flora and Fauna Guarantee Act of 1988: Index of Approved Action Statements Archived 2008-10-15 at the Wayback Machine.
ECOS: Indigenous icon at risk from sea level rise. Blogs, CSIRO. Retrieved 30 November 2011.
Garde, Murray. "manimunak". Bininj Kunwok Online Dictionary. Bininj Kunwok Regional Language Centre. Retrieved 1 June 2019.
Goodfellow, D.L. & M. Stott (2001, 2005). Birds of Australia's Top End. 1st Edition, Darwin: Scrubfowl Press. 2nd Edition, Sydney: Reed New Holland.
"gurrumaṯtji". Yolngu Matha Dictionary. Charles Darwin University. Retrieved 1 June 2019.

"Roy Burnyila". Bula'bula Arts. Bula'bula Arts. Retrieved 1 June 2019.