Population information

Order name Pelicaniformes
Family name Phalacrocoracidae
Scientific name Phalacrocorax atriceps Common name Imperial Shag
Population name purpurascens
Breeding range Macquarie Island Non-breeding range
Red List Category Least Concern
Ramsar regions Oceania
Notes Sometimes included in genus Leucocarbo. Treated as a separate species until WPE4.

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 1999 1999 3,750 3,750 [R249]
WPE 4 1999 1999 3,750 3,750 [R249]
WPE 1 0 0 1,500 1,500 [R165]
WPE 2 0 0 1,500 1,500 [R165]
WPE 5 2008 2008 1,740 1,740 Census based [S6390] [R1074]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 3 1975 1985 FLU [R249]
WPE 4 1975 1985 FLU [R249]
WPE 1 0 0 Unknown
WPE 2 0 0 Unknown
WPE 5 1999 2008 STA Reasonable [T5306] [R1076]

Population 1% level

Publication Yearset 1 percent Note
WPE 3 2002 40
WPE 4 2006 40
WPE 1 1994 15
WPE 2 1997 15
WPE 5 2012 15

References

  • R249 - Garnett, S.T. and Crowley, G.M. 2000. The Action Plan for Australian Birds 2000. Environment Australia, Canberra.
  • R165 - Croxall, J.P., Evans, P.G.H. and Schreiber, R.W. (eds.). 1984. Status and Conservation of the World's Seabirds. ICBP Technical Publication No. 2. Cambridge, UK.
  • R1074 - Gales, R. In litt. April 2012. (Tasmanian State Government DPIPWE).
  • R1076 - Garnett, S.T., Szabo, J.K. and Dutson, G. 2010. The Action Plan for Australian Birds 2010. CSIRO Publishing, Melbourne.

Notes

  • S6390 - Estimate derived by WPE method of breeding pairs x3; based on recent comprehensive survey.
  • T5306 - Some decline since 1970s but presently stable.



Copyright Wetlands International 2012

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