Geophaps | |
---|---|
Spinifex pigeon | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Columbiformes |
Family: | Columbidae |
Subfamily: | Columbinae |
Genus: | Geophaps G.R. Gray, 1842 |
Type species | |
Columba scripta Temminck, 1821 | |
Species | |
live |
Geophaps is a small genus of doves. Established by George Robert Gray, it contains three extant species. The plumage and distribution suggests that all species within the genus have formed from a common ancestor and that through adaptive radiation they have varied greatly in size, shape and ecology. [1]
The genus Geophaps was introduced in 1842 to accommodate the squatter pigeon (Geophaps scripta) by the English zoologist George Robert Gray. [2] [3] The genus name combines of the Ancient Greek geō (γεω) meaning "ground" and phaps (φάψ), meaning "wild pigeon". [4]
Pigeons and doves are placed in their taxonomic groups based predominantly on structural characteristics. Pigeons feed their young by regurgitation and suck water while their beak is immersed. Males and females divide incubation duties. [5]
Geophaps pigeons are members of the family Columbidae, whose distribution is spread between three defined areas around the globe: the Americas; Africa, the Middle East and Central Asia; and Asia, Australasia and Oceania. Australia and Oceania are home to almost two-thirds of all living species of Columbidae, which also includes three-quarters of all threatened species globally. [6]
The genus contains three species: [7]
A fourth species, the crested pigeon is sometimes placed within the genus. [8]
Pigeons in the genus Geophaps are believed to have evolved from bird fossils which were found at Riversleigh, north-west Queensland. The fossils were described as a new genus and species of pigeon and are the oldest Columbia fossils to have been found globally. The fossil species has been most closely linked to the Australian bronzewings, including Geophaps species and suggests that pigeons may have evolved in the southern hemisphere. The fossil find indicates that the ancestry of Australian bronzewings goes back to the end of the Paleogene era. [9]
All species of pigeons and doves are described as having short necks and legs, and a short, slender bill. [10]
The three species within the Geophaps are endemic to Australia and are generally described as bronzewings. They are closely related to pigeons from the genus Phaps . The Geophaps species share partridge-like flight patterns and show no differences in plumage between the sexes. All members of the genus are terrestrial. Geophaps scripta and Geophaps smithii are closely related species and have with recognisable facial patterns. The spinifex pigeon has a long, erect crest and is considered reasonably different from the squatter pigeon and the partridge pigeon. It is sometimes placed in the genus Ocyphaps with the crested pigeon. [8]
Common name | Scientific name and subspecies | Range | Size and ecology | IUCN status and estimated population |
---|---|---|---|---|
Spinifex pigeon | Geophaps plumifera Gould, 1842 Three subspecies
| Dry parts of inland and Western Australia | Size: M: 200–208 mm F: 206–216 mm | LC |
Partridge pigeon | Geophaps smithii (Jardine & Selby, 1830) | Kimberleys, N.T, Melville Island | Size: M: 271–279 mm F: 231–251 mm | VU |
Squatter pigeon | Geophaps scripta (Temminck, 1821) Two subspecies
| Eastern Australia from Cape York to N.E NSW. | Size: M: 262–296 mm F: 256–287 mm | LC |
Table 1.1, shows the following information- Common name, scientific name/s, sub-species, size, distribution and IUCN (International Union for Conservation of Nature and Natural Resources) Red List Status [8] [11]
Geophaps species are ground feeding granivores, [12] with studies finding that seeds make up their diet almost entirely, with a small number of insects found in the crops of Geophaps smithii . [13] While the Spinifex pigeon is found in arid tussock/spinifex grasslands, the spinifex grass seeds have not been found to make up a large portion of their diet. [14]
All Geophaps pigeons exhibit a bowing display during courtship. The Spinifex pigeon and crested pigeon's display is performed with a raising and fanning out of the tail with their folded wings partly opened to display their iridescent wing marks to their potential partner. The other members of the Geophaps displays and bows in a very similar manner. [1]
G. scripta has been recorded to have performed its courtship ritual where it stood fully erect on an exposed branch, with plumage slightly fluffed out. The male then bobs up and down rapidly and rhythmically, he displays alone and waits for a female to fly from cover to pair with him. [15] Rainfall and food abundance has been shown to effect breeding cycles. [16]
Crested pigeons have been observed to build nests on a platform of branches, with both sexes collecting nest building material. The female builds the nest, lacing thin twigs through the substructure. They are thought to learn to build nests through trial and error. [17]
Pigeons and doves are parasitised by two major groups of lice; wing lice and body lice. Most birds are host to both groups, which eat the downy parts of feathers that are close to the body. Body lice have been found to be more likely to be host specific than wing lice, possibly due to their host ecology where terrestrial pigeons feeding on the ground may create an easier transfer of lice and therefore be more likely to carry host specific body lice than arboreal birds. [18]
Columbidae species are amongst the most threatened bird families around the world. Geophaps species' conservation is largely threatened by habitat loss and fragmentation caused predominantly by agriculture and human interference [6] as well as by predation by introduced predators, namely cats. [8]
As arid environments are naturally changing, it is difficult to gauge the extent of change caused by pastoralisation, however, grazing by livestock is considered incompatible with natural succession of ecosystems. Overgrazing by livestock causes alteration and degradation of soil and flora. Very few arid species have been recorded as declining in numbers since European settlement and some species, including the Spinifex pigeon and the Crested pigeon have increased in population size, possibly due to the increase in permanent water sources created for livestock. [19]
Species within the Geophaps have been named in Aboriginal stories and songs.
The Partridge pigeon (Geophaps smithii) has been listed as a bird species which features as a Morrdjdjanjno song subject. Morrdjdjanjno is a genre of song from the Arnhem Land plateau in the Northern Territory top end, they are sung only by men and passed down as 'open domain' songs. Morrdjdjanjno songs' subjects are discussed in relation to mythological events of religious significance and are believed to bring the singer into contact with the animal being sung about or to increase numbers of certain species. [20]
The Spinifex pigeon and crested pigeons have been recorded in versions of an Aboriginal children's story from Central Australia, conveying rich symbolic meanings between the Geophaps species and associations by the Arandic people with 'kurdaitchas' (a person who sets out to kill or harm someone, often in revenge, and who leaves no trace. [21]
Columbidae is a bird family consisting of doves and pigeons. It is the only family in the order Columbiformes. These are stout-bodied birds with short necks and short slender bills that in some species feature fleshy ceres. They primarily feed on plants, and can be taxonomically divided amongst granivores, that feed mostly on the ground on seeds, and frugivores, that feed mostly on fruits, from branches. The family occurs worldwide, often in close proximity with humans, but the greatest variety is in the Indomalayan and Australasian realms.
The bronzewing pigeons are a group of pigeons native to Australia which have distinctive iridescent wing patches that appear bronze or green-brown in dull light, but flash in many bright colours in the sun as the bird moves. Three species are always known as "bronzewings" in the genus Phaps, and several broadly similar birds also have the trademark wing patch to a more or less obvious degree. Bronzewings are ground feeders, but are capable of very fast flight. They tend to browse quietly until disturbed, then remain still, their earthy browns blending into the earth and leaf litter until the intruder approaches too closely, when the bronzewings take off with an explosive burst of sudden wing clapping and feather noise, and disappear from sight within moments.
The spotted dove or eastern spotted dove is a small and somewhat long-tailed pigeon that is a common resident breeding bird across its native range on the Indian subcontinent and in East and Southeast Asia. The species has been introduced to many parts of the world and feral populations have become established.
The laughing dove is a small pigeon that is a resident breeder in Africa, the Middle East, South Asia, and Western Australia where it has established itself in the wild after being released from Perth Zoo in 1898. This small long-tailed dove is found in dry scrub and semi-desert habitats where pairs can often be seen feeding on the ground. It is closely related to the spotted dove which is distinguished by a white and black chequered necklace. Other names include laughing turtle dove, palm dove and Senegal dove while in Asia the name little brown dove is often used.
The crested pigeon is a bird found widely throughout mainland Australia except for the far northern tropical areas. Only two Australian pigeon species possess an erect crest, the crested pigeon and the spinifex pigeon. The crested pigeon is the larger of the two species. The crested pigeon is sometimes referred to as a topknot pigeon, a common name shared with the reddish crested Lopholaimus antarcticus of Eastern Australia.
The spinifex pigeon, also known as the plumed-pigeon or gannaway pigeon, is one of three endemic Australian bird species within the genus Geophaps. It occurs within a broader group known as bronzewing pigeons. This species is listed under the International Union for Conservation of Nature (IUCN) Red List category of "least concern". It most frequently occurs in arid and semi-arid habitats containing hummock-forming grasses of the genera Triodia and Plectrachne.
Phaps is a genus of bronzewing pigeons in the family Columbidae that are native to Australia.
The topknot pigeon is a pigeon native to eastern Australia.
The wompoo fruit dove, also known as wompoo pigeon and "magnificent fruit dove" among others, is one of the larger fruit doves native to New Guinea and eastern Australia.
The common bronzewing is a species of medium-sized, heavily built pigeon. Native to Australia and one of the country's most common pigeons, the common bronzewing is able to live in almost any habitat, with the possible exception of very barren areas and dense rainforests. Its advertising call is an extraordinary mournful whooo repeated at metronomic intervals.
Ducula is a genus of the pigeon family Columbidae, collectively known as imperial pigeons. They are large to very large pigeons with a heavy build and medium to long tails. They are arboreal, feed mainly on fruit and are closely related to the other genus of fruit-eating doves, Ptilinopus. Both genera display brightly coloured plumage, predominantly green, often with contrasting under-parts of purple, orange or red. Some Ducula have prominently swollen ceres. They have large gapes and swallow seeds whole, playing an important role in seed dispersal.
The squatter pigeon is a species of bird in the family Columbidae. It is endemic to northeastern Australia. According to Australia's then Department of the Environment and Energy, the nominate subspecies, southern squatter pigeon is listed as vulnerable. It lives in arid and semi-arid areas, including grasslands and dry sclerophyll forests.
The partridge pigeon is a species of bird in the family Columbidae. It is endemic to Australia.
Geotrygon is a bird genus in the pigeon and dove family (Columbidae). Its members are called quail-doves, and all live in the Neotropics. The species of this genus have ranges from southern Mexico and Central America to the West Indies and South America. Quail-doves are ground-dwelling birds that live, nest, and feed in dense forests. They are remarkable for their purple to brown coloration with light-and-dark facial markings.
The brush bronzewing is a species of bird in the pigeon family, Columbidae. It is endemic to Australia, with two biogeographically distinct subspecies.
The flock bronzewing, also known as the flock pigeon, harlequin bronzewing and the harlequin pigeon is a species of pigeon in the family Columbidae. It is endemic to drier parts of Australia.
The blue-headed quail dove, or blue-headed partridge-dove, is a species of bird in the pigeon and dove family Columbidae. It is monotypic within the subfamily Starnoenadinae and genus Starnoenas.
Columbinae is a subfamily of birds from the family Columbidae. Otherwise, four genera Geotrygon, Leptotila, Starnoenas and Zenaida form subfamily Leptotilinae.
Primophaps schoddei is an extinct genus and species of bird in the pigeon family. It was described from Late Oligocene material found at Riversleigh in north-western Queensland, Australia. It was closely related to the Australian bronzewing pigeons, especially those in the genus Phaps. The genus name comes from the Latin primordium,, and the Greek phaps (“pigeon”). The specific epithet honours Australian taxonomist Richard Schodde for his work on the relationships of Australian birds.
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