Population information

Order name Charadriiformes
Family name Laridae
Scientific name Hydroprogne caspia Common name Caspian Tern
Population name (strenua), New Zealand
Breeding range New Zealand Non-breeding range
Red List Category Least Concern
Ramsar regions Oceania
Notes No movements recorded between Australia and New Zealand (Higgins & Davies (1996)). Population split from Sterna caspia (strenua), Australia, New Zealand in 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 4 0 0 1 5,000 [R178]
WPE 5 1995 2007 3,900 4,200 Census based [S7311] [R1016]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 4 0 0 Unknown
WPE 5 1971 1995 STA Good [T4492] [R1016]

Population 1% level

Publication Yearset 1 percent Note
WPE 4 2006 50
WPE 5 2012 40

References

  • R178 - del Hoyo, J., Elliot, A. and Sargatal, J. (eds). 1996. Handbook of the Birds of the World. Volume 3: Hoatzin to Auks. Lynx Edicions, Barcelona.
  • R1016 - Bell, M. and Bell, B.D. 2008. Population numbers of the Caspian tern (Sterna caspia) in New Zealand. Notornis 55: 84-88.

Notes

  • S7311 - Estimate based on breeding pairs in 17 colonies, with allowance for isolated pairs (thus, total of 1300-1400 pairs).
  • T4492 - Trend stable over more than two decades.



Copyright Wetlands International 2012

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