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Tristan moorhen

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Tristan moorhen

Tristan moorhen
Tristan moorhen

Extinct  (late 19th century)  (IUCN 3.1)[1]
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Gruiformes
Family: Rallidae
Genus: Gallinula
Species: G. nesiotis
Binomial name
Gallinula nesiotis
Sclater, 1861

The Tristan moorhen and the Gough moorhen are two species of flightless rails. The Tristan moorhen is an extinct species from the South Atlantic island of Tristan da Cunha.[2][1] It was very similar to the Gough moorhen of Gough Island, located 395 miles to the southeast.

The once abundant Tristan moorhen had become rare by 1873, and by the end of 19th century it was extinct as a result of hunting, predation by introduced species (rats, cats and pigs) and habitat destruction by fire. A handful of taxidermical specimens of the Tristan moorhen have been preserved, including one at Harvard University.

In 1956 the closely related Gough moorhen G. comeri was introduced to Tristan da Cunha. On the basis of DNA sequencing of both recently collected and historical material from both species, Groenenberg et al (2008) concluded that the genetic distances between G. nesiotis and G. comeri are of at least the same size as those found between subspecies of G. chloropus in the literature. They propose that the extinct moorhen of Tristan (Gallinula nesiotis) and the moorhens that live on Gough and Tristan today (G. comeri) be regarded as subspecies.[3]

Notes

  1. ^ a b http://www.iucnredlist.org/details/22728763/0
  2. ^ F. Gill, M. Wright D. & Donsker (2015) - IOC World Bird Names (version 5.1)
  3. ^ Groenenberg, D.S.J., Beintema, A,J., Dekker, R.W.R.J. & E. Gittenberger, 2008. Ancient DNA Elucidates the Controversy about the Flightless Island Hens (Gallinula sp.) of Tristan da Cunha. PLoS ONE 3(3):1835. full text



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