Plains-wanderer

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Plains-wanderer
Temporal range: Late Pleistocene–Present
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Plains-wanderer female 8173.jpg
Female
Plains-wanderer male 8055.jpg
Male
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Charadriiformes
Suborder: Scolopaci
Family: Pedionomidae
Bonaparte, 1856
Genus: Pedionomus
Gould, 1840
Species:
P. torquatus
Binomial name
Pedionomus torquatus
Gould, 1840

The plains-wanderer (Pedionomus torquatus) is a bird, the only representative of family Pedionomidae and genus Pedionomus. It is endemic to Australia. Its historic range included much of eastern Australia, including Victoria, New South Wales, South Australia and the Northern Territory, but in recent years, it has become endangered with remaining known populations concentrated in the Riverina region of New South Wales and western Queensland. [2]

Contents

Description

The plains-wanderer is a quail-like ground bird, measuring 1519 cm. It is such an atypical bird that it is placed in an entire family of its own, Pedionomidae. The adult male is light brown above, with fawn-white underparts with black crescents. The adult female is substantially larger than the male, and has a distinctive, white-spotted black collar. They have excellent camouflage and will first hide at any disturbance. If approached too closely, they will run rather than fly, at which they are very poor. Females lay four eggs, which the male then incubates. [3]

Taxonomy

It was formerly believed to be related to the buttonquails and thus placed in the gamebird order Galliformes or with the cranes and rails in Gruiformes. DNA–DNA hybridization and RAG-1 sequence data places it as a wader related to the jacanas. [4] [5] [6] [7] It thus represents a remarkable case of morphological convergence, or perhaps it is simply extremely plesiomorphic in morphology (the buttonquails, meanwhile, having turned out to be a very basal offshoot of the wader radiation). In the latter case, this would mean that the jacanas, painted snipe and seedsnipes—all ecologically very different birds—all evolved from birds very similar to the living plains-wanderer.

Status and conservation

Population decline has been caused by the conversion of native grasslands to cultivation and intensive predation by the introduced fox—the species' ground-nesting habits, poor flying ability, and tendency to run rather than fly from predators make it easy prey for the fox. [8] Sites identified by BirdLife International as being important for plains-wanderer conservation are Boolcoomatta, Bindarrah and Kalkaroo Stations in north-eastern South Australia, Diamantina and Astrebla Grasslands in western Queensland, Patho Plains in northern Victoria and the Riverina Plains in New South Wales. [9]

A crucial aspect of Plains-wanderer conservation is their habitat needs. They require grasslands with both open and denser vegetation for foraging and roosting, which is essential for their survival and recovery. [10]

International

This bird is listed as Endangered on the 2022 IUCN Red List. [2]

Australia

Plains-wanderers are listed as critically endangered under the Australian Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act). Their conservation status varies from state to state within Australia: [11]

A 2018 study ranked it sixth in a list of Australian birds most likely to go extinct. [12]

Conservation efforts

A captive population was established in late 2018 within a purpose-built facility containing 30 aviaries at Taronga Western Plains Zoo in Dubbo. These captive individuals will form an insurance population as part of a breed-and-release program to support the wild population, as part of the national conservation plan for the species. [13]

See also

Related Research Articles

<span class="mw-page-title-main">Charadriiformes</span> Order of birds

Charadriiformes is a diverse order of small to medium-large birds. It includes about 390 species and has members in all parts of the world. Most charadriiform birds live near water and eat invertebrates or other small animals; however, some are pelagic (seabirds), others frequent deserts, and a few are found in dense forest. Members of this group can also collectively be referred to as shorebirds.

<span class="mw-page-title-main">Phalarope</span> Genus of birds

A phalarope is any of three living species of slender-necked shorebirds in the genus Phalaropus of the bird family Scolopacidae.

<span class="mw-page-title-main">Gruiformes</span> Order of birds

The Gruiformes are an order containing a considerable number of living and extinct bird families, with a widespread geographical diversity. Gruiform means "crane-like".

<span class="mw-page-title-main">Wader</span> Birds of the order Charadriiformes

Waders or shorebirds are birds of the order Charadriiformes commonly found wading along shorelines and mudflats in order to forage for food crawling or burrowing in the mud and sand, usually small arthropods such as aquatic insects or crustaceans. The term "wader" is used in Europe, while "shorebird" is used in North America, where "wader" may be used instead to refer to long-legged wading birds such as storks and herons.

<span class="mw-page-title-main">Gull</span> Seabirds of the family Laridae in the suborder Lari

Gulls, or colloquially seagulls, are seabirds of the family Laridae in the suborder Lari. They are most closely related to the terns and skimmers and distantly related to auks, and even more distantly to waders. Until the 21st century, most gulls were placed in the genus Larus, but that arrangement is now considered polyphyletic, leading to the resurrection of several genera. An older name for gulls is mews, which is cognate with German Möwe, Danish måge, Swedish mås, Dutch meeuw, Norwegian måke/måse, and French mouette, and can still be found in certain regional dialects.

<span class="mw-page-title-main">Tern</span> Family of seabirds

Terns are seabirds in the family Laridae that have a worldwide distribution and are normally found near the sea, rivers, or wetlands. Terns are treated as a subgroup of the family Laridae which includes gulls and skimmers and consists of eleven genera. They are slender, lightly built birds with long, forked tails, narrow wings, long bills, and relatively short legs. Most species are pale grey above and white below, with a contrasting black cap to the head, but the marsh terns, the Inca tern, and some noddies have dark plumage for at least part of the year. The sexes are identical in appearance, but young birds are readily distinguishable from adults. Terns have a non-breeding plumage, which usually involves a white forehead and much-reduced black cap.

<span class="mw-page-title-main">Seedsnipe</span> Family of birds

The seedsnipes are a small family, Thinocoridae, of small gregarious waders which have adapted to a herbivorous diet. The family is divided into two genera, Attagis and Thinocorus, each containing two species. The family has a South American distribution, in the Andean and Patagonian regions. The relationships with other families within the order Charadriiformes are uncertain; it has been suggested that the plains wanderer of Australia, the jacanas and the painted snipes are their closest relatives. The plains wanderer in particular has a similar feeding ecology, although differs markedly in breeding biology. The family's common name is misleading, as they do not resemble true snipe, having short bills on small heads, and seeds do not form a major part of the diet. One species Thinocorus rumicivorus is however known to feed on the fleshy flower petal appendages of Calceolaria uniflora, a species of Scrophularaceae. In the process of feeding on these sugar rich appendages, they also pollinate the flowers.

<span class="mw-page-title-main">Buttonquail</span> Family of birds

Buttonquail or hemipodes are members of a small family of birds, Turnicidae, which resemble, but are not closely related to, the quails of Phasianidae. They inhabit warm grasslands in Asia, Africa, Europe, and Australia. There are 18 species in two genera, with most species placed in the genus Turnix and a single species in the genus Ortyxelos.

<span class="mw-page-title-main">Laridae</span> Family of birds

Laridae is a family of seabirds in the order Charadriiformes that includes the gulls, terns, noddies, skimmers, and kittiwakes. It includes around 100 species arranged into 22 genera. They are an adaptable group of mostly aerial birds found worldwide.

<span class="mw-page-title-main">Lari (bird)</span> Suborder of birds

The suborder Lari is the part of the order Charadriiformes that includes the gulls, terns, skuas and skimmers; the rest of the order is made up of the waders and snipes. The auks are now placed into the Lari too, following recent research. Sometimes, the buttonquails are also placed here, but the molecular data and fossil record rather suggests they are a quite basal offshoot along with the snipe-like and aberrant waders.

<span class="mw-page-title-main">Stint</span> Group of birds

A stint is one of several very small waders in the paraphyletic "Calidris" assemblage – often separated in Erolia – which in North America are known as peeps. They are scolopacid waders much similar in ecomorphology to their distant relatives, the charadriid plovers.

<i>Tringa</i> Genus of birds

Tringa is a genus of waders, containing the shanks and tattlers. The genus name Tringa is the Neo-Latin name given to the green sandpiper by the Italian naturalist Ulisse Aldrovandi in 1599. They are mainly freshwater birds, often with brightly coloured legs as reflected in the English names of six species, as well as the specific names of two of these and the green sandpiper. They are typically associated with northern hemisphere temperate regions for breeding. Some of this group—notably the green sandpiper—nest in trees, using the old nests of other birds, usually thrushes.

<span class="mw-page-title-main">Terek sandpiper</span> Species of bird

The Terek sandpiper is a small migratory Palearctic wader species and is the only member of the genus Xenus. It is named after the Terek River which flows into the west of the Caspian Sea, as it was first observed around this area.

<i>Actitis</i> Genus of birds

Actitis is a small genus of waders, comprising just two very similar bird species.

<span class="mw-page-title-main">Black-breasted buttonquail</span> Species of bird

The black-breasted buttonquail is a rare buttonquail endemic to eastern Australia. As with other buttonquails, it is unrelated to the true quails. The black-breasted buttonquail is a plump quail-shaped bird 17–19 cm (6.7–7.5 in) in length with predominantly marbled black, rufous, and pale brown plumage, marked prominently with white spots and stripes, and white eyes. Like other buttonquails, the female is larger and more boldly coloured than the male, with a distinctive black head and neck sprinkled with fine white markings. The usual sex roles are reversed, as the female mates with multiple male partners and leaves them to incubate the eggs.

<span class="mw-page-title-main">Shore plover</span> Species of bird

The shore plover, also known as the shore dotterel, is a small plover endemic to New Zealand. Once found all around the New Zealand coast, it is now restricted to a few offshore islands. It is one of the world's rarest shorebirds: the population is roughly 200.

<span class="mw-page-title-main">Sylvioidea</span> Superfamily of birds

Sylvioidea is a superfamily of passerine birds, one of at least three major clades within the Passerida along with the Muscicapoidea and Passeroidea. It contains about 1300 species including the Old World warblers, Old World babblers, swallows, larks and bulbuls. Members of the clade are found worldwide, but fewer species are present in the Americas.

<span class="mw-page-title-main">Pellorneidae</span> Family of birds

The jungle babblers are a family, Pellorneidae, of mostly Old World passerine birds belonging to the superfamily Sylvioidea. They are quite diverse in size and coloration, and usually characterised by soft, fluffy plumage and a tail on average the length of their body, or longer. These birds are found in tropical zones, with the greatest biodiversity in Southeast Asia and the Indian subcontinent.

<span class="mw-page-title-main">Gruimorphae</span> Clade of birds

Gruimorphae is a clade of birds that contains the orders Charadriiformes and Gruiformes identified by molecular analysis. This grouping has had historical support, as various charadriiform families such as the families Pedionomidae and Turnicidae were classified as gruiforms. It may also have support from the fossil record since the discovery of Nahmavis from the Early Eocene of North America.

<span class="mw-page-title-main">Iron-grass Natural Temperate Grassland of South Australia</span> Ecological community in South Australia

The Iron-grass Natural Temperate Grassland of South Australia is a temperate grassland in the southeast of South Australia that stretches from Orroroo in the north, to Strathalbyn in the south, just straddling the eastern fringes of Adelaide's Mount Lofty Ranges. Listed as Critically Endangered under the EPBC Act, the grasslands predominantly feature Iron-grasses.

References

  1. Reed, Bourne, Elizabeth, Steven (2009). "Pleistocene Fossil Vertebrate Sites of the South East Region of South Australia II". Transactions of the Royal Society of South Australia. 133 (40). doi:10.1080/03721426.2009.10887108.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  2. 1 2 3 BirdLife International (2022). "Pedionomus torquatus". IUCN Red List of Threatened Species . 2022: e.T22693049A212570062. doi: 10.2305/IUCN.UK.2022-1.RLTS.T22693049A212570062.en . Retrieved 21 July 2022.
  3. Archibald, George W. (1991). Forshaw, Joseph (ed.). Encyclopaedia of Animals: Birds. London: Merehurst Press. p. 101. ISBN   978-1-85391-186-6.
  4. Sibley, Charles G.; Ahlquist, Jon E. (1990). Phylogeny and Classification of the Birds: A Study in Molecular Evolution. Yale University Press. ISBN   978-0-300-04085-2. JSTOR   j.ctt1xp3v3r.
  5. Thomas, Gavin H.; Wills, Matthew A.; Székely, Tamás (24 August 2004). "A supertree approach to shorebird phylogeny". BMC Evolutionary Biology. 4 (1): 28. doi: 10.1186/1471-2148-4-28 . ISSN   1471-2148. PMC   515296 . PMID   15329156.
  6. Van Tuinen, Marcel; Waterhouse, David; J. Dyke, Gareth (2004). "Avian molecular systematics on the rebound: a fresh look at modern shorebird phylogenetic relationships". Journal of Avian Biology. 35 (3): 191–194. doi:10.1111/j.0908-8857.2004.03362.x. ISSN   0908-8857.
  7. Paton, Tara A.; Baker, Allan J.; Groth, Jeff G.; Barrowclough, George F. (2003). "RAG-1 sequences resolve phylogenetic relationships within Charadriiform birds". Molecular Phylogenetics and Evolution. 29 (2): 268–278. Bibcode:2003MolPE..29..268P. doi:10.1016/S1055-7903(03)00098-8. ISSN   1055-7903. PMID   13678682.
  8. Baker-Gabb, David; Antos, Mark; Brown, Geoff (2016). "Recent decline of the critically endangered Plains-wanderer (Pedionomus torquatus), and the application of a simple method for assessing its cause: major changes in grassland structure". Ecological Management & Restoration. 17 (3): 235–242. Bibcode:2016EcoMR..17..235B. doi:10.1111/emr.12221. ISSN   1442-8903.
  9. "Plains-wanderer". Important Bird Areas. BirdLife International. 2012. Retrieved 4 November 2012.
  10. Nugent, Daniel T.; Baker-Gabb, David J.; Green, Peter; Ostendorf, Bertram; Dawlings, Finella; Clarke, Rohan H.; Morgan, John W. (2022). "Multi-scale habitat selection by a cryptic, critically endangered grassland bird—The Plains-wanderer ( Pedionomus torquatus ): Implications for habitat management and conservation". Austral Ecology. 47 (3): 698–712. Bibcode:2022AusEc..47..698N. doi: 10.1111/aec.13157 . ISSN   1442-9985. S2CID   247098208.
  11. "Pedionomus torquatus — Plains-wanderer". Species Profile and Threats Database. Department of Climate Change, Energy, the Environment and Water, Australian Government . Retrieved 7 July 2022.
  12. Geyle, Hayley M.; Woinarski, John C. Z.; et al. (20 April 2018). "Quantifying extinction risk and forecasting the number of impending Australian bird and mammal extinctions". Pacific Conservation Biology . 24 (2): 157–167. doi: 10.1071/PC18006 . hdl: 10536/DRO/DU:30109156 . ISSN   2204-4604 . Retrieved 11 July 2022. PDF
  13. "Dubbo Zoo welcomes two critically endangered chicks". Daily Liberal. 14 April 2020. Retrieved 17 April 2020.

Further reading