Population information

Nom ordre Anseriformes
Nom famille Anatidae
Nom scientifique Cygnus atratus Nom courant Black Swan
Nom population Australia
Aire de reproduction Australia Aire de non-reproduction
Catégorie de la Liste Rouge Least Concern
Regions Ramsar Oceania
Notes Since WPE4 includes Tasmanian population. The New Zealand population is introduced and has not been included.

Réseau de conservation

Réseau de conservation Notes
Pas des Réseaux de conservation
Note:

Taille de population

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 1 0 0 -1 -1 No quality assessment
WPE 2 0 0 300,000 500,000 No quality assessment [R667]
WPE 3 2002 2002 300,000 500,000 No quality assessment [R604]
WPE 4 2003 2003 100,000 1,000,000 No quality assessment [S3310] [R341]
WPE 5 2004 2008 100,000 1,000,000 Best guess [S6342] [R341] [R1112]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 0 0 Unknown No quality assessment
WPE 2 0 0 Unknown No quality assessment
WPE 3 0 0 Unknown No quality assessment
WPE 4 0 0 Unknown No quality assessment
WPE 5 1982 2011 DEC? No idea [T5258] [R1148] [R1101]

Population 1% level

Publication Yearset 1 percent Note
WPE 1 -1 -1 Not Set
WPE 2 1997 4000
WPE 3 2002 4000
WPE 4 2006 10000
WPE 5 2012 10000

References

  • R667 - Unpublished information supplied by Wetlands International Specialist Groups, 1997.
  • R604 - Specialist]] Unpublished information supplied by Wetlands International Specialist Groups, 2002.
  • R341 - Jaensch, Roger, August 2005. Detailed data and notes on numbers and distribution of waterbirds in Australia, updated from Jaensch, 2003, and derived from more than 90 Australian sources including Wetlands International, Birds Australia and Jaensch, 2003,
  • R1112 - Kingsford, R.T., Porter, J.L. and Halse, S.A. 2012. National waterbird assessment. Waterlines report, National Water Commission, Canberra. Available online at http://nwc.gov.au/publications/waterlines/74
  • R1148 - Porter, J.L. and Kingsford, R.T. 2011. Aerial Survey of Wetland Birds in Eastern Australia - October 2011. Annual Summary Report, Australian Wetlands and Rivers Centre, University of New South Wales. 29 pp. Also available online at http://www.wetrivers.unsw.edu.au/wp-content/uploads/2011/12/Eastern-Australia_waterbird-aerial-survey_2011.pdf
  • R1101 - Jaensch, R. April 2012. Detailed data and notes on numbers and trends of waterbirds in Australia and other parts of the Oceania region, in a spreadsheet prepared for Wetlands International - Oceania for the 5th edition of WPE.

Notes

  • S3310 - The New Zealand population is introduced and has not been included. Separate Tasmanian population not justified (344). Ringing recoveries demonstrate movement between populations.
  • S6342 - Estimated population size in Australia derived from the 2008 National Survey of Waterbirds, which confirms previous estimate..
  • T5258 - Trend not clear but habitat loss due to inland river regulation and coastal development probably has inflicted some long-term decline



Copyright Wetlands International 2012

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