Population information

Nom ordre Charadriiformes
Nom famille Laridae
Nom scientifique Thalasseus sandvicensis Nom courant Sandwich Tern
Nom population sandvicensis, Black Sea & Mediterranean (bre)
Aire de reproduction Black Sea coast Aire de non-reproduction Mediterranean & Black Sea coasts
Catégorie de la Liste Rouge Least Concern
Regions Ramsar Africa Asia Europe
Notes

Réseau de conservation

Réseau de conservation Notes
AEWA
EUBD
Note:

Taille de population

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 3 1970 1990 44,000 73,000 No quality assessment [R69]
WPE 4 1990 2000 61,000 197,000 No quality assessment [S2517] [R63]
WPE 1 0 0 130,000 130,000 No quality assessment [R414]
WPE 2 0 0 130,000 130,000 No quality assessment [R414]
WPE 5 1990 2000 61,000 197,000 Expert opinion [R63]
AEWA CSR 4 1990 2000 61,000 197,000 Expert opinion [R63]
AEWA CSR 5 1990 2000 61,000 197,000 Expert opinion [R63]
AEWA CSR 6 1998 2013 62,000 221,000 Expert opinion [S8436]
AEWA CSR 7 1998 2013 62,000 221,000 Best guess [S8984] [R1549]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 3 1970 1990 DEC No quality assessment [R283]
WPE 4 1990 2000 FLU No quality assessment [R63]
WPE 1 0 0 Unknown No quality assessment
WPE 2 0 0 Unknown No quality assessment
WPE 5 1990 2000 FLU Poor [R63]
AEWA CSR 4 1990 2000 FLU Poor [R63]
AEWA CSR 5 1990 2000 FLU Poor [R63]
AEWA CSR 6 2000 2012 STA/FLU Reasonable [T6433] [R1511]
AEWA CSR 7 2000 2012 STA/FLU Reasonable [T7067] [R1549]

Population 1% level

Publication Yearset 1 percent Note
WPE 3 2002 590
WPE 4 2006 1300
WPE 1 1994 1300
WPE 2 1997 1300
WPE 5 2012 1100
AEWA CSR 4 -1 -1 Not Set
AEWA CSR 5 -1 -1 Not Set
AEWA CSR 6 -1 -1 Not Set
AEWA CSR 7 2018 1100

References

  • R69 - BirdLife International/European Bird Census Council. 2000. European bird populations: estimates and trends. Cambridge, UK. BirdLife International Conservation Series No. 10.
  • R283 - Hagemeijer, W.J.M. and Blair, M.J. (eds). (1997). The EBCC Atlas of European Breeding Birds: Their Distribution and Abundance. T. and A.D. Poyser, London.
  • R63 - BirdLife International (2004)b. Birds in Europe, population estimates, trends and conservation status. Cambridge, UK: BirdLife International. (BirdLife Conservation Series No. 12).
  • R414 - Lloyd, C., Tasker, M.L. and Partridge, K. 1991. The status of seabirds in Britain and Ireland. T. and A.D. Poyser, London, U.K. 355 pp.
  • R1511 - l, BTO
  • R1549 - BirdLife International 2015. European Red List of Birds. Luxembourg: Office for Official Publications of the European Communities. http://datazone.birdlife.org/info/euroredlist
  • 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.
  • 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

  • S2517 - 64: summed estimates for relevant countries 20,270 - 65,670 pairs (60,810 - 197,010 individuals).
  • S8436 - 20,620-73,760 pairs in UA, RO, BG, GR, TR and RU (European Topic Centre on Biological Diversity, in prep., BirdLife International et al., in prep.), which roughly agrees with the previous estimate.
  • T6433 - Fluctuating in RU and UA, the two largest population.
  • S8984 - 20,620-73,760 pairs in UA, RO, BG, GR, TR and RU.
  • T7067 - Fluctuating in RU and UA, the two largest population.
  • S9516 - The size of the breeding population is estimated at 16,670-82,224 pairs, or 50,000-250,000 individuals after rounding in BG, GR, RO, RU, TR, UA based on data from the period of 2008-2019 (BirdLife International, in prep.). Estimates have substantially increased for UA compared to BirdLife International (2015). The highest annual IWC count total between 2014–2018 was 5,329 individuals (Nagy & Langendoen, 2020).
  • T7662 - No quantitative trend estimate is available for 2009-2018. Populations are fluctuating in UA, RO and BG and thought to be stable in GR and unknown in RO and TR. Between 1980 and 2019, the population is thought to have increased by 200% in UA and trends were qualitatively assessed the same as for the short-term in other countries. Based on IWC data from 14 countries in the Black Sea and the Mediterranean, Nagy & Langendoen (2020) reported a stable trend for 1993-2018 (1.0004) and uncertain trend with a slight positive tendency for 2009-2018 (1.0153). No trend could be calculated for the Red Sea.



Copyright Wetlands International 2012

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