Population information

Order name Gruiformes
Family name Gruidae
Scientific name Balearica regulorum Common name Grey Crowned-crane
Population name gibbericeps, Eastern Africa (Kenya to Mozambique)
Breeding range Uganda, Kenya, D R Congo S to N Zimbabwe, SE South Africa Non-breeding range
Red List Category Endangered
Ramsar regions Africa
Notes

Conservation Framework

Conservation framework Notes
AEWA
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 1 1993 1993 100,000 100,000 [R665]
WPE 2 1995 1995 75,000 85,000 [R443]
WPE 3 2001 2001 50,000 65,000 [R190]
WPE 4 2005 2005 43,000 55,000 [R49]
WPE 5 2005 2012 25,000 40,000 Best guess [S5900] [R1110]
CSR 4 2005 2005 43,000 55,000 Expert opinion [R49]
CSR 5 2005 2005 43,000 55,000 Expert opinion [R49]
CSR 6 2012 2012 19,500 26,000 Expert opinion [R1377] [R1371]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 1982 1992 DEC [R665]
WPE 2 1985 1995 DEC [R443]
WPE 3 1985 1995 DEC [R443]
WPE 4 1985 2004 DEC [T14] [R49]
WPE 5 1994 2012 DEC Poor [R49]
CSR 4 1994 2004 DEC Poor [R49]
CSR 5 1994 2004 DEC Poor [R49]
CSR 6 2004 2014 DEC Good [T6612] [R1377]

Population 1% level

Publication Yearset 1 percent Note
WPE 1 1994 1000
WPE 2 1997 800
WPE 3 2002 580
WPE 4 2006 490
WPE 5 2012 320
CSR 4 0 -1
CSR 5 0 -1

References

  • R665 - Unpublished information provided by IWRB Specialist Research Groups
  • R443 - Meine, C.D. and Archibald, G.W. (eds.). 1996. The Cranes: status survey and conservation Action Plan. IUCN, Gland, Switzerland and Cambridge, UK. 294 pp.
  • R190 - Dodman, T. 2002. Waterbird Population Estimates in Africa. Unpublished report to Wetlands International.
  • R49 - Beilfuss R., Dodman, T. and Urban, E. (2007) Status of Cranes in Africa in 2005. The Ostrich 78(2): 175-184
  • R1110 - Morrison, K. In litt. 2012.
  • R1377 - Morrison, K. (in prep. 2014)
  • R1371 - Dodman, T. 2014. Status, Estimates and Trends of Waterbird Populations in Africa: AEWA-listed African populations. Wetlands International. (CSR6 African populations) URL: https://www.wetlands.org/publications/1304/

Notes

  • T14 - 50: Declining in every country surveyed.
  • S5900 - Morrison, K. In litt. 2012 provided data to BirdLife International on the drastic decline in this subspecies, which is being uplisted to Endangered; a very rough estimate of 25,000-40,000.
  • T6612 - Significant long-term population decline with fragmenting range and rapidly contracting area of occupancy



Copyright Wetlands International 2012

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