Apteribis

Reconstruction

The Maui Nui ibises ( Apteribis ) are a genus of extinct flightless ibis of the Hawaiian islands of Molokai, Lanai and Maui. Maui Nui ibises were once obviously commonly found on Maui. The Apteribis species may have fed on snails and haben.2 kept clearly short, together with the Rails snails

Probably the ibises existed only on the islands of Maui and Molokai, which were connected to the larger island of Maui Nui during the last glaciation in the Pleistocene due to the then lower sea levels. Two bones of Apteribisarten were radiocarbon dating with an age of 1850 ± 270 and 7750 ± 500 years bestimmt.1 2

Species

So far, four species of the genus are known, of which not more than two are fully secured.

  • Apteribis brevis is a flightless ibis, which is known only from skeletal remains. It is smaller than the second type, holding rather to the high points of the island. The epithet means brevis short and refers to the short beak and small size, this Ibis. 2 3 4
  • There was probably a second Apteribisart on Maui, which has not yet been formally described, since the number of skeletal remains was not considered sufficient for this. It is larger than Apteribis brevis and remained at a lower level rather than the small form. 2 3
  • Apteribis glenos: A flightless Ibis of Molokai, which is known only from skeletal remains. 2 3
  • 2011, a fourth Apteribis - type of the island of Lanai was erwähnt.6

Other flightless ibises

From Jamaica also flightless Jamaican Ibis of the Reunion Reunion Ibis ( Threskiornis solitarius ), which may be identical to the Reunion solitaire described ( Xenicibis xympithecusthe ). Both are ausgestorben5 today.

Swell

  • 1 7 Helen F. James, Thomas W. Stafford, David W. Steadman, Storrs L. Olson, Paul S. Martin, AJT Jull, and Patrick C. McCoy: Radiocarbon Dates on Extinct Birds of Bones from Hawaii. doi: 10.1073/pnas.84.8.2350 1987, 84, 2350-2354 PNAS
  • 2 8 Helen F. James and Storrs L. Olson: Descriptions Of Thirty -Two New Species Of Birds From The Hawaiian Islands: Part I. Non- Passeriformes. In: Ornithological Monographs no. 45 Published By The American Ornithologists ' Union, Washington, DC University of California. Berkeley, California in 1991. ISBN 0-935868-54-2
  • 3 9 TO Iwaniuk, JE Nelson, HF James, SL Olson - Journal of Zoology, 2004 - Cambridge Univ Press: A comparative test of the correlated evolution of flightlessness and relative brain size in birds. In: Journal of Zoology (2004), 263: 317-327 Cambridge University Press doi: 10.1017/S0952836904005308
  • 4 55 William Suarez: deletion of the Flightless Ibis Xenicibis from the Fossil Record of Cuba. In: Caribbean Journal of Science, Vol 37, No. 1-2, 109-110, 2001
  • 5 Threskiornis solitarius in the Red List of Threatened Species IUCN 2011 Posted by: . BirdLife International, 2008 Retrieved on 16 November 2011.
  • 6 Carla J. Dove and Storrs L. Olson: Fossil Feathers from the Hawaiian Flightless Ibis ( Apteribis sp.): Plumage Coloration and Systematics of a Prehistorically Extinct Bird Journal of Paleontology; September 2011; v. 85; no 5; Pp. 892-897; DOI: 10.1666/10-133.1
  • Ibises and spoonbills
Alexander Wetmore
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