Population information

Order name Gruiformes
Family name Rallidae
Scientific name Gallinula nesiotis Common name Tristan Moorhen
Population name nesiotis, Tristan da Cunha
Breeding range Tristan da Cunha island, South Atlantic Ocean Non-breeding range
Red List Category Extinct
Ramsar regions Africa
Notes

Conservation Framework

Conservation framework Notes
No conservation frameworks
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 3 0 0 0 0 No quality assessment [R178]
WPE 4 0 0 0 0 No quality assessment [R178]
WPE 1 0 0 6,000 9,000 No quality assessment [R137]
WPE 2 1993 1993 6,000 9,000 No quality assessment [R138]
WPE 5 0 0 0 0 No quality assessment [R178]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 3 1900 1996 EXT No quality assessment [R178]
WPE 4 1900 1996 EXT No quality assessment [R178]
WPE 1 0 0 Unknown No quality assessment
WPE 2 0 0 Unknown No quality assessment
WPE 5 1900 1996 EXT No quality assessment [R178]

Population 1% level

Publication Yearset 1 percent Note
WPE 3 -1 -1 Not Set
WPE 4 -1 -1 Not Set
WPE 1 1994 75
WPE 2 1997 1
WPE 5 -1 -1 Not Set

References

  • R178 - del Hoyo, J., Elliot, A. and Sargatal, J. (eds). 1996. Handbook of the Birds of the World. Volume 3: Hoatzin to Auks. Lynx Edicions, Barcelona.
  • R137 - Collar, N.J. and Stuart, S.N. 1985. Threatened Birds of Africa and Related Islands. Third Edition. ICBP, Cambridge, U.K., and IUCN, Gland, Switzerland.
  • R138 - Collar, N.J., Crosby, M.J. and Stattersfield, A.J. 1994. Birds to Watch 2. The World List of Threatened Birds. BirdLife Conservation series No. 4. BirdLife International, Cambridge, UK. 407 pp.

Notes




Copyright Wetlands International 2012

Citation: Wetlands International (). "Waterbird Population Estimates" . Retrieved from wpe.wetlands.org on