Uvea Parakeet

Taxobox
name = Uvea Parakeet


status = EN | status_system = IUCN3.1
regnum = Animalia
phylum = Chordata
classis = Aves
ordo = Psittaciformes
familia = Psittacidae
genus = "Eunymphicus"
species = "E. uvaeensis"
binomial = "Eunymphicus uvaeensis"
binomial_authority = (E.L. & E.L.C. Layard, 1882)
synonyms = "Eunymphicus cornutus uvaeensis"

The Uvea Parakeet, or Ouvea Parakeet, ("Eunymphicus uvaeensis") is a species of parrot in the Psittacidae family. It is endemic to the island of Uvea in the Loyalty Islands, New Caledonia. The species was once considered conspecific with the Horned Parakeet of Grande Terre, but they have now been split into two species.BirdLife International (2004). [http://www.iucnredlist.org/search/details.php/40454/all Eunymphicus uvaeensis] . [http://www.iucnredlist.org 2006 IUCN Red List of Threatened Species. ] Downloaded on 24 July 2007. ]

The Uvea Parakeet is a medium sized parakeet with mostly green plumage and a prominent green crest. [Doughty, C.; Day, N & A. Plant (1999) "Birds of the Solomons, Vanuatu & New Caledonia" Christopher Helm; London. ISBN 0-7136-4690-X] The crest is composed of six backward feathers that curl forwards. The underside of the bird tends to be yellower and there is bright blue on the wings and tail. The face is dark and the beak is black, lacking the yellow on the face of the Horned Parakeet.

The species has a preference for natural forests while avoiding coconut plantations and coastal vegetation.Olivier Robinet, Vincent Bretagnolle and Mick Clout (2003) "Activity patterns, habitat use, foraging behaviour and food selection of the Ouvéa Parakeet ("Eunymphicus cornutus uvaeensis")". "Emu" 103 (1): 71 - 80 doi|10.1071/MU00032] They are active in the early morning and late afternoon, and avoid activity during the heat of the day. They feed on a variety of foods, with figs of the genus "Ficus" being particularly important.

The breeding season of the Uvea Parakeet is from August to January. [Robinet, O & M Salas (1999) "Reproductive biology of the endangered Ouvea Parakeet "Eunymphicus cornutus uvaeensis". "Ibis" 141 (4): 660-669.] The nests are located in natural cavities in native trees, with "Syzygium" and "Mimusops" accounting for 90% of nesting trees. Three (occasionally two) eggs are laid in these cavities and incubated for 21 days. The nestling period is around 43 daays, with an avarage of around 1.5 chicks being fledged per nesting attempt. Fledging survival is lower, however, with around around 0.75 chicks surviving a month after fledging. The main causes of chick mortality are starvation (most common in the smallest, weakest chick), Brown Goshawk predation and human collecting (for the pet trade). It once ranged across the other Loyalty Islands; attempt to reintroduce it to Lifou in 1925 and 1963 failed. BirdLife International (2008) [http://www.birdlife.org/print.html?url=%2Fdatazone%2Fspecies%2Findex.html%3Faction%3DSpcHTMDetails.asp%26sid%3D30008%26m%3D0 Species factsheet: "Eunymphicus uvaeensis"] . Downloaded on 14 July 2008] One source reports that the reintroduced birds simply flew back to Uvea. [del Hoyo, J.; Elliot, A. & Sargatal, J. (editors). (1996). "Handbook of the Birds of the World. Volume 3: Hoatzin to Auks". Lynx Edicions. ISBN 8487334202 ] Studies of potential nesting success on the two islands showed that future reintroductions to Lifou would fail unless the ship rat population is controlled. [Robinet, O; Craig, J & L. Chardonnet (1998) "Impact of rat species in Ouvea and Lifou (Loyalty Islands) and their consequences for conserving the endangered Ouvea Parakeet". "Biological Conservation" 86 (2): 223-232 doi|10.1016/S0006-3207(97)00181-X] It is threatened by habitat loss and the pet trade. Around 30-50% of its habitat has been lost in the last thirty years. Collection for the pet trade not only reduces the number of birds but the collection method, which involves cutting trees open to get at the chicks, renders the nesting sites useless for future breeding attempts and lack of breeding cavities may be limiting the population. In the event that ship rats were to reach Uvea it would be at greater risk of extinction.

References