Population information

Order name Anseriformes
Family name Anatidae
Scientific name Mergus squamatus Common name Scaly-sided Merganser
Population name E & SE Asia
Breeding range Extreme SE Russia, NE China, N Korea Non-breeding range S & E to C & S China, Korea
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 3 1999 1999 3,600 4,500 [R68]
WPE 1 0 0 4,000 4,000 [R115]
WPE 2 0 0 3,600 4,500 [R736]
WPE 4 2000 2000 1,000 2,500 [S5776] [R65]
WPE 5 2010 2010 2,400 10,000 Expert opinion [S8182] [R1163] [R1164]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 3 1980 1990 DEC [R68]
WPE 1 1980 1990 DEC [R115]
WPE 2 1980 1990 DEC [R115]
WPE 4 1990 2005 DEC [R64]
WPE 5 1990 2005 DEC [R64]

Population 1% level

Publication Yearset 1 percent Note
WPE 3 2002 40
WPE 1 1994 40
WPE 2 1997 40
WPE 4 2006 18
WPE 5 2012 50

References

  • R68 - BirdLife International. (2000). Threatened Birds of the World. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife international
  • R115 - Callaghan, D.A. and Green, A.J. 1993. Wildfowl at risk, 1993. Wildfowl 44: 149-169.
  • R736 - Zhao, Z.J., Han, X.D., Wu, J.C., Zhang, S.H. and Piao, Z.J. 1994. A study on reproductive number, distribution and conservation strategy of Chinese Mergansers (Mergus squamatus). In: Chinese Ornithological Society Waterbird Specialist Group (ed.).
  • 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
  • R1163 - Solovyeva (2012, in litt.)
  • R1164 - Solovyeva & Pearce 2011. Comparative mitochondrial genetics of North American and Eurasian mergansers with an emphasis on the endangered scaly-sided merganser (Mergus squamatus). Conserv Genet: in press. www.springerlink.com/content/f88xn05625128433

Notes

  • S5776 - 415: Highest recent AWC count was only 100 individuals in 2000 in Jiangxi province, China.
  • S8182 - Solovyeva and Pearce (2011) indicated a population of 2,400-10,000, and Solovyeva, D. In litt. 2012 estimates a world population of 5,700



Copyright Wetlands International 2012

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