Population information

Order name Ciconiiformes
Family name Ardeidae
Scientific name Ardea humbloti Common name Madagascar Heron
Population name Madagascar
Breeding range W Madagascar Non-breeding range
Red List Category Endangered
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 2 1993 1993 1 5,000 [R138]
WPE 1 0 0 1 1,000 [R137]
WPE 3 0 0 1,000 3,000 [R301]
WPE 4 0 0 1,000 3,000 [R301]
WPE 5 0 0 1,000 3,000 [R301]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 2 1970 1994 DEC [R138]
WPE 1 1973 1984 DEC [R137]
WPE 3 1982 1992 DEC [R118]
WPE 4 1990 2005 DEC [R64]
WPE 5 1990 2005 DEC [R64]

Population 1% level

Publication Yearset 1 percent Note
WPE 2 1997 50
WPE 1 1994 10
WPE 3 2002 20
WPE 4 2006 20
WPE 5 2012 15

References

  • 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.
  • 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.
  • R301 - Hawkins, F. In litt. 2002. Unpublished notes on waterbird population estimates of Madagascar.
  • R118 - Campredon, P. 1987. La reproduction des oiseaux d'eau sur le Parc National du Banc d'Arguin (Mauritanie) en 1984-1985. Alauda 55: 187-210.
  • R64 - BirdLife International. 2005. Threatened birds of the world 2005. Species factsheets available at?www.birdlife.org

Notes




Copyright Wetlands International 2012

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