Population information

Order name Ciconiiformes
Family name Ardeidae
Scientific name Gorsachius magnificus Common name White-eared Night-heron
Population name SE Asia
Breeding range S & E China, Hainan, Vietnam Non-breeding range
Red List Category Endangered
Ramsar regions Asia
Notes

Conservation Framework

Conservation framework Notes
EAAF Partnership
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 1 1993 1993 0 100 [R665]
WPE 2 0 0 10 100 [R395]
WPE 3 2002 2002 0 50 [R604]
WPE 4 2000 2000 250 1,000 [S3922] [R65]
WPE 5 2000 2000 250 1,000 [S7745] [R65]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 1982 1992 EXT [R665]
WPE 2 1985 1995 DEC [R395]
WPE 3 1990 2000 DEC [R68]
WPE 4 1995 2005 DEC [R64]
WPE 5 1995 2005 DEC [R64]

Population 1% level

Publication Yearset 1 percent Note
WPE 1 1994 1
WPE 2 1997 1
WPE 3 2002 1
WPE 4 2006 6
WPE 5 2012 5

References

  • R665 - Unpublished information provided by IWRB Specialist Research Groups
  • R395 - Lansdown, R.V. (pers. comm.) 1996. Data prepared for the Draft Ardeidae Action Plan.
  • R604 - Specialist]] Unpublished information supplied by Wetlands International Specialist Groups, 2002.
  • R68 - BirdLife International. (2000). Threatened Birds of the World. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife international
  • R65 - BirdLife International 2001. Threatened Bird of Asia: the BirdLife International Red Data Book. Cambridge, UK. BirdLife International
  • R64 - BirdLife International. 2005. Threatened birds of the world 2005. Species factsheets available at?www.birdlife.org

Notes

  • S3922 - M. Crosby in litt. (2005) estimates 250-999 individuals based on analysis of information presented in 66. Habitat detrimentally transformed at principal site, Shennongjia in Hubei province, China, in 1990s.
  • S7745 - M. Crosby in litt. (2005) estimates 250-999 individuals based on analysis of information presented in 66. Habitat detrimentally transformed at principal site, Shennongjia in Hubei province, China, in 1990s.



Copyright Wetlands International 2012

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