Population information

Order name Anseriformes
Family name Anatidae
Scientific name Tadorna tadornoides Common name Australian Shelduck
Population name SE Australia
Breeding range SE Australia, including Tasmania Non-breeding range
Red List Category Least Concern
Ramsar regions Oceania
Notes In WPE2 this population belonged to one single population (S Australia/Tasmania). WPE4: separation of SW and SE populations not confirmed.

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 0 0 -1 -1
WPE 4 2005 2005 100,000 1,000,000 [R64]
WPE 5 2008 2011 100,000 1,000,000 Best guess [S7080] [R1028] [R1101] [R1112] [R1148]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 3 0 0 Unknown
WPE 4 0 0 Unknown
WPE 5 1982 2011 FLU Reasonable [T5910] [R1148]

Population 1% level

Publication Yearset 1 percent Note
WPE 3 0 -1
WPE 4 2006 10000
WPE 5 2012 10000

References

  • R64 - BirdLife International. 2005. Threatened birds of the world 2005. Species factsheets available at?www.birdlife.org
  • R1028 - Blackhall, S. In litt. 3 April 2012 (advice from Department of Primary Industries, Parks, Water and Environment, Tasmania, Australia).
  • 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.
  • 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

Notes

  • S7080 - Estimate based on 2008 national survey of waterbirds and annual aerial surveys over about 10% of the population's range, adjusted to account for birds missed in aerial surveys (species feeds in dryland habitats such as pastures).
  • T5910 - Well adapted to agricultural landscape; numbers fluctuate with rainfall.



Copyright Wetlands International 2012

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