Population information

Order name Charadriiformes
Family name Laridae
Scientific name Hydroprogne caspia Common name Caspian Tern
Population name Caspian (bre)
Breeding range Caspian & Iran Non-breeding range SW Asia, NE Africa
Red List Category Least Concern
Ramsar regions Africa Asia Europe
Notes

Conservation Framework

Conservation framework Notes
AEWA
CAF Action Plan
EUBD
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 1 1994 1994 10,000 10,000 [R70]
WPE 2 1994 1994 10,000 10,000 [R70]
WPE 3 0 0 9,000 16,500 [R579]
WPE 4 0 0 9,000 16,500 [R579]
WPE 5 1985 1997 9,000 16,500 Expert opinion [R579]
CSR 4 1985 1997 9,000 16,500 Expert opinion [R579]
CSR 5 1985 1997 9,000 16,500 Expert opinion [R579]
CSR 6 1990 2000 10,000 25,000 Best guess [S8430]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 1983 1993 DEC [R70]
WPE 2 1983 1993 DEC [R70]
WPE 3 0 0 Unknown
WPE 4 0 0 Unknown
WPE 5 0 0 Unknown
CSR 4 0 0 Unknown
CSR 5 0 0 Unknown
CSR 6 2003 2012 UNC Poor [T6429]

Population 1% level

Publication Yearset 1 percent Note
WPE 1 1994 100
WPE 2 1997 100
WPE 3 2002 140
WPE 4 2006 130
WPE 5 2012 120
CSR 4 0 -1
CSR 5 0 -1
CSR 6 0 -1

References

  • R70 - BirdLife International/European Birds Census Council, European Birds Database. Accessed March 1994.
  • R579 - Scott, D.A. in press, 2002. Report on the Conservation Status of Migratory Waterbirds in the Agreement Area. Update Report to African Eurasian Migratory Waterbird Agreement Secretariat
  • R1548 - Wetlands International (2017) Flyway trend analyses based on data from the African-Eurasian Waterbird Census from the period of 1967-2015. Ede, The Netherlands: Wetlands International. Temporary URL: https://www.dropbox.com/sh/r76f4eyuhzu65co/AADzzQkhySsUDsmwFJUcHs91a?dl=0

Notes

  • S8430 - The estimate of Scott (2002) is based on number in the Volga delta. However, there are 50-250 pairs alo in AZ. The species is also a common, at places rare, breeding migrant in KZ (Gavrilov & Gavrilov, 2005). Sklyarenko et al. (2008) adopted a a 1% threshold of 250 individuals, which is equivalent to 25,000 individuals. Jennings (2010) has estimated the breeding population in the order of 500 pairs in Arabia. Shobrak (2003) also mentions 250-350 pairs from EG.
  • T6429 - Little information is available about trends in breeding numbers. IWC counts are fluctuating a lot and actual counts cover less than 30% of the population in 14 our of 25 years.



Copyright Wetlands International 2012

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