Population information

Order name Charadriiformes
Family name Laridae
Scientific name Larus genei Common name Slender-billed Gull
Population name West, South-west & South Asia (bre)
Breeding range SW Asia to Caspian, E Kazakhstan, Afghanistan, Pakistan, NW India Non-breeding range Coasts of Caspian & SW Asia
Red List Category Least Concern
Ramsar regions Africa Asia
Notes

Conservation Framework

Conservation framework Notes
AEWA
CAF Action Plan
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 1 1987 1991 150,000 150,000 [R519]
WPE 2 1987 1991 150,000 150,000 [R519]
WPE 3 1987 1991 150,000 150,000 [R519]
WPE 4 1987 1991 150,000 150,000 [R519]
WPE 5 1987 1991 150,000 150,000 Expert opinion [R519]
CSR 4 1987 1991 150,000 150,000 Expert opinion [R519]
CSR 5 1987 1991 150,000 150,000 Expert opinion [R519]
CSR 6 1987 1991 150,000 150,000 Best guess [S8423] [R519] [R1422] [R1455] [R1365]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 1977 1991 INC [R519]
WPE 2 1977 1991 INC [R519]
WPE 3 1977 1991 INC [R519]
WPE 4 1977 1991 INC [R519]
WPE 5 1987 1991 INC Poor [R519]
CSR 4 1987 1991 INC Poor [R519]
CSR 5 1987 1991 INC Poor [R519]
CSR 6 2003 2012 STA/FLU Poor [T6422] [R1381]

Population 1% level

Publication Yearset 1 percent Note
WPE 1 1994 1500
WPE 2 1997 1500
WPE 3 2002 1500
WPE 4 2006 1500
WPE 5 2012 1500
CSR 4 0 -1
CSR 5 0 -1
CSR 6 0 -1

References

  • R519 - Perennou, C.P., Mundkur, T. and Scott, D.A. 1994. The Asian Waterfowl Census 1987-1991: distribution and status of Asian waterfowl. IWRB Spec. Publ. No. 24; AWB Spec. Publ. No. 86. Slimbridge, UK and Kuala Lumpur, Malaysia.
  • R1422 - Nagy, S., Alanazi, F., Almomen, A. Alsuhaibani, A, AlRashidi, M., Dereliev, S., Keijl, G. Ruiters, P. & Shobrak, M. 2014. Winter waterbird survey in the Kingdom of Saudi Arabia in January 2014. Wetlands International, Ede, The Netherlands.
  • R1455 - de Fouw, in litt., 2014
  • R1365 - Wetlands International, International Waterbird Census, unpublished data, 2014.
  • R1381 - Nagy, S., Flink, S., Langendoen, T. (2014) Waterbird trends 1988-2012: Results of trend analyses of data from the International Waterbird Census in the African-Eurasian Flyway. Wetlands International, Ede.
  • 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

  • S8423 - Recent highest regional count total in SW Asia was 38,462 individuals in 2008. The sum of site-level 5-year-means in SW Asia was 83,697 individuals for the period of 2008-2012, but this does not include SA (Wetlands International, 2014). Nagy et al. (in prep.) counted 2,080 individuals at 8 sites west to Dammam along the Saudi coast and 7,386 individuals along c. 7% of the Saudi Red Sea coast. De Fouw (in litt.) reported 11,533 from the Bar al Hikman, OM, in Dec. 2013. These suggest that the estimate of Perennou et al. (1994) is likely to be low, but there is insufficient information to revise it yet.
  • T6422 - Analysis of IWC count data based on 318 plots indicates a fluctuating population in the short-term (2003-2012: 0.965±0.0214, but real counts were less than 30% of the totals adjusted for missing counts in 14 out of 25 years.
  • S8975 - The IWC count totals were around 24,000-56,000 individuals between 2011-2015 (Wetlands International 2017).



Copyright Wetlands International 2012

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