Population information

Order name Charadriiformes
Family name Laridae
Scientific name Gelochelidon nilotica Common name Common Gull-billed Tern
Population name nilotica, West & Central Asia/South-west Asia
Breeding range Caspian region, C Asia Non-breeding range SW Asia particularly Persian Gulf
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 1987 1991 10,000 25,000 No quality assessment [R519]
WPE 2 1987 1991 10,000 25,000 No quality assessment [R519]
WPE 3 1987 1991 10,000 25,000 No quality assessment [R519]
WPE 4 1987 1991 10,000 25,000 No quality assessment [R519]
WPE 5 1987 1991 10,000 25,000 Best guess [R519]
AEWA CSR 4 1987 1991 10,000 25,000 Best guess [R519]
AEWA CSR 5 1987 1991 10,000 25,000 Best guess [R519]
AEWA CSR 6 1987 1991 10,000 25,000 Best guess [S8429] [R519] [R1422] [R1478] [R1330] [R63] [R1479]
AEWA CSR 7 1987 1991 10,000 25,000 Best guess [S8429] [R519] [R1422] [R1478] [R1330] [R63] [R1479]
AEWA CSR 8 1986 2019 13,000 32,000 Best guess [S9500] [R1625] [R1628] [R1330] [R1619]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 1977 1991 DEC No quality assessment [R519]
WPE 2 1977 1991 DEC No quality assessment [R519]
WPE 3 0 0 Unknown No quality assessment
WPE 4 0 0 Unknown No quality assessment
WPE 5 0 0 Unknown No quality assessment
AEWA CSR 4 0 0 Unknown No quality assessment
AEWA CSR 5 0 0 Unknown No quality assessment
AEWA CSR 6 0 0 Unknown No idea
AEWA CSR 7 2006 2015 UNC Poor [R1548]
AEWA CSR 8 2006 2015 UNC Poor [R1548]

Population 1% level

Publication Yearset 1 percent Note
WPE 1 -1 -1 Not Set
WPE 2 -1 -1 Not Set
WPE 3 2002 250
WPE 4 2002 250
WPE 5 2002 250
AEWA CSR 4 -1 -1 Not Set
AEWA CSR 5 -1 -1 Not Set
AEWA CSR 6 -1 -1 Not Set
AEWA CSR 7 2002 250
AEWA CSR 8 2002 250

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.
  • R1478 - De Fouw in litt., 2014
  • R1330 - Jennings, M.C. 2010. Atlas of Breeding Birds of Arabia. Fauna of Arabia Vol. 25. Senckenberg Gesellschaft für Naturforschung and King Abdulaziz City for Science and Technology, Frankfurt, Germany and Riyadh, Saudi Arabia
  • R63 - BirdLife International (2004)b. Birds in Europe, population estimates, trends and conservation status. Cambridge, UK: BirdLife International. (BirdLife Conservation Series No. 12).
  • R1479 - Gavrilov & Gavrilov, 2005
  • 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. URL: http://iwc.wetlands.org/index.php/aewatrends
  • R1625 - BirdLife International (in prep) European Red List of Birds. Deliverable to the European Commission (DG Environment) in 2021 under Service Contract ENV.D.3/SER/2018/0018.
  • R1628 - Kalyakin, M., Morkovin, A. Voltzit, O., Sklyarenko, S., Urazaliyev, R., Kashkarov, R., Ten, A, Rustamov, E (2020): Breeding population estimates for selected waterbirds in West Siberia and Central Asia. Unpublished reports. Wetlands International & BirdLife International, Wageningen & Cambridge (UK).
  • R1619 - Nagy, S. & Langendoen, T. (2020) Flyway trend analyses based on data from the African-Eurasian Waterbird Census from the period of 1967-2018. Online publication. Wetlands International, Wageningen, The Netherlands. URL: http://iwc.test.wetlands.org/index.php/aewatrends8

Notes

  • S8429 - Estimate is based on Perennou et al. (1994) and there is insufficient information to improve on the estimate. On average, 1,600 individuals were counted on mid-winter counts in IR between 2004 and 2007. Average count total in SA was 664 individuals between 1992 and 1995, but only 143 along the Gulf and 218 along the 7% of the Red Sea coast was counted in Jan. 2014 (Nagy et al., in prep.). 558 at Bar al Hikman in Dec. 2013 (De Fouw in litt, 2014). Little information is available about breeding numbers. The entire population for European RU is 2,000-5,000 pairs, but that partly breeds along the Black Sea (BirdLife International, 2004). It is a common breeder in KZ (Gavrilov & Gavrilov, 2005). No more than 1,000 pairs in Arabia (Jennings 2010).
  • S9500 - The size of the breeding population is estimated at 4,465-10,780 pairs, or 13,000-32,000 individuals after rounding in AM, AZ BirdLife International (in prep), TM, KZ, West Siberia (Kalyakin et al., 2020) and KW (Jennings, 2010) based on data from the period of 1986-2019. The highest annual IWC count total between 2014–2018 was 1,959 individuals in 2014 including SA (Nagy & Langendoen, 2020) but count coverage is low in the region. Another 558 at Barr al Hikman, OM, in 2012/13 (de Fouw et al., 2017).



Copyright Wetlands International 2012

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