Population information

Nom ordre Charadriiformes
Nom famille Laridae
Nom scientifique Thalasseus sandvicensis Nom courant Sandwich Tern
Nom population sandvicensis, Western Europe/West Africa
Aire de reproduction Coasts of W & N Europe Aire de non-reproduction Mostly W & NW African coasts S to South Africa
Catégorie de la Liste Rouge Least Concern
Regions Ramsar Africa 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 159,000 171,000 No quality assessment [R69]
WPE 1 1994 1994 150,000 150,000 No quality assessment [R70]
WPE 2 1994 1994 150,000 150,000 No quality assessment [R70]
WPE 4 1990 2000 166,000 171,000 No quality assessment [S2512] [R63]
WPE 5 1990 2000 166,000 171,000 Expert opinion [R63]
AEWA CSR 4 1990 2000 166,000 171,000 Expert opinion [R63]
AEWA CSR 5 1990 2000 166,000 171,000 Expert opinion [R63]
AEWA CSR 6 2000 2012 160,000 186,000 Expert opinion [S8435]
AEWA CSR 7 2000 2012 160,000 186,000 Expert opinion [S8983] [R1549]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 3 1970 1990 INC No quality assessment [R69]
WPE 1 1983 1993 INC No quality assessment [R70]
WPE 2 1983 1993 INC No quality assessment [R70]
WPE 4 1990 2000 STA No quality assessment [R63]
WPE 5 1990 2000 STA Poor [R63]
AEWA CSR 4 1990 2000 STA Poor [R63]
AEWA CSR 5 1990 2000 STA Poor [R63]
AEWA CSR 6 2000 2012 INC Reasonable [T6432]
AEWA CSR 7 2000 2012 INC Reasonable [T7066] [R1549]

Population 1% level

Publication Yearset 1 percent Note
WPE 3 2002 1700
WPE 1 1994 1500
WPE 2 1997 1500
WPE 4 2006 1700
WPE 5 2012 1700
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 1700

References

  • R69 - BirdLife International/European Bird Census Council. 2000. European bird populations: estimates and trends. Cambridge, UK. BirdLife International Conservation Series No. 10.
  • R70 - BirdLife International/European Birds Census Council, European Birds Database. Accessed March 1994.
  • R63 - BirdLife International (2004)b. Birds in Europe, population estimates, trends and conservation status. Cambridge, UK: BirdLife International. (BirdLife Conservation Series No. 12).
  • 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.
  • R1620 - van Roomen, M., Nagy, S., Citegetse, G., & Schekkerman, H. (2018). East Atlantic Flyway Assessment 2017: the status of coastal waterbird populations and their sites. Wadden Sea Flyway Initiative p/a CWSS, Wetlands International, BirdLife International, Wilhelmshaven, Wageningen and Cambridge. Retrieved from: https://www.waddensea-worldheritage.org/resources/east-atlantic-flyway-assessment-2017

Notes

  • S2512 - 64: summed estimates for relevant countries 55,260 - 57,645 pairs (165,780 - 171,105 individuals).
  • S8435 - European Topic Centre on Biological Diversity (in prep.) estimates the W European population to number 53,311-61,981 pairs.
  • T6432 - Increasing in DK, FR, UK, IE and ES, declining in Be and ES, stable or fluctuating in SE, EE, PL and NL, unknown in IT. Overall growth rate is 1.0025-1.0157 in the short term, 1.0096-1.0138 during 1980-2012 (European Topic Centre on Biological Diversity, in prep.).
  • S8983 - 53,311-61,981 pairs.
  • T7066 - Also long-term increase.
  • S9515 - The size of the breeding population is estimated at 57,584-65,296 pairs, or 170,000-200,000 individuals after rounding in BE, DE, DK, EE, ES, FR, IE, IT, NL, PL, SE, GB based on data from the period of 2006-2018 (BirdLife International, in prep.). The highest annual IWC count total between 2014–2018 was 28,851 individuals (Nagy & Langendoen, 2020).
  • T7661 - Based on BirdLife International (in prep.), it is estimated that the breeding population has changed by -16-24% in BE, DE, DK, EE, FR, IE, IT, NL, PL, SE, GB between 2009 and 2018. No quantitative trend information is available from ES. It has increased by 39-70% in DE, EE, ES, FR, IE, IT, NL, PL, SE, GB between 1980 and 2018. No quantitative trend information is available from BE, DK. Based on IWC data, van Roomen et al. (2018) reported moderate increase for 1984-2017 (1.05) and uncertain trend for 2009-2017 (1.02).



Copyright Wetlands International 2012

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