Population information

Nom ordre Gruiformes
Nom famille Rallidae
Nom scientifique Tribonyx ventralis Nom courant Black-tailed Native-hen
Nom population Australia
Aire de reproduction Australia excluding Tasmania Aire de non-reproduction
Catégorie de la Liste Rouge Least Concern
Regions Ramsar Oceania
Notes Highly irruptive, dispersing from inland where breeding habitat available erratically (Marion et al. 2000).

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 4 2003 2003 100,000 1,000,000 No quality assessment [R341]
WPE 1 0 0 -1 -1 No quality assessment
WPE 2 0 0 -1 -1 No quality assessment
WPE 3 0 0 -1 -1 No quality assessment
WPE 5 2004 2009 10,000 1,000,000 Best guess [S6278] [R341] [R1101] [R1149]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 4 1990 2000 FLU No quality assessment [R341]
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 5 1982 2011 FLU Poor [T4724] [R341]

Population 1% level

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

References

  • 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,
  • 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.
  • R1149 - Reid, J.R.W., Kingsford, R.T. and Jaensch, R.P. 2009. Waterbird Surveys in the Channel Country Floodplain Wetlands, Autumn 2009. Report by Australian National University, Canberra, University of New South Wales, Sydney, and Wetlands International, Oceania, Brisbane, for the Australian Government Department of Environment, Water, Heritage and the Arts. 81 pp. Also available online at http://www.lebmf.gov.au/publications/pubs/waterbirds-report.pdf

Notes

  • S6278 - Estimate based on limited assessments from core breeding region under moderately favourable conditions, as well as best guess of higher/lower numbers under peak/drought conditions.
  • T4724 - Trend: widely fluctuating.



Copyright Wetlands International 2012

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