Population information

Order name Gruiformes
Family name Rallidae
Scientific name Tribonyx ventralis Common name Black-tailed Native-hen
Population name Australia
Breeding range Australia excluding Tasmania Non-breeding range
Red List Category Least Concern
Ramsar regions Oceania
Notes Highly irruptive, dispersing from inland where breeding habitat available erratically (Marion et al. 2000).

Conservation Framework

Conservation framework Notes
No conservation frameworks
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 4 2003 2003 100,000 1,000,000 [R341]
WPE 1 0 0 -1 -1
WPE 2 0 0 -1 -1
WPE 3 0 0 -1 -1
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 [R341]
WPE 1 0 0 Unknown
WPE 2 0 0 Unknown
WPE 3 0 0 Unknown
WPE 5 1982 2011 FLU Poor [T4724] [R341]

Population 1% level

Publication Yearset 1 percent Note
WPE 4 2006 10000
WPE 1 0 -1
WPE 2 0 -1
WPE 3 0 -1
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