Population information

Nom ordre Charadriiformes
Nom famille Laridae
Nom scientifique Thalasseus maximus Nom courant Royal Tern
Nom population albidorsalis, West Africa (bre)
Aire de reproduction Coast of W Africa Mauritania to Guinea Aire de non-reproduction Coast of W Africa Morocco to Namibia
Catégorie de la Liste Rouge Least Concern
Regions Ramsar Africa
Notes

Réseau de conservation

Réseau de conservation Notes
AEWA
Note:

Taille de population

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 1 0 0 50,000 50,000 No quality assessment [R670]
WPE 2 0 0 50,000 50,000 No quality assessment [R670]
WPE 3 0 0 135,000 165,000 No quality assessment [R678]
WPE 4 0 0 225,000 225,000 No quality assessment [S2470] [R679]
WPE 5 2004 2004 225,000 225,000 Expert opinion [R679]
AEWA CSR 4 2004 2004 225,000 225,000 Expert opinion [R679]
AEWA CSR 5 2004 2004 225,000 225,000 Expert opinion [R679]
AEWA CSR 6 2003 2005 255,000 315,000 Expert opinion [S8708] [R1514] [R1371] [R1359] [R1519]
AEWA CSR 7 2003 2005 255,000 315,000 Expert opinion [S8708] [R1514] [R1371] [R1359] [R1519]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 1972 1982 STA No quality assessment [R670]
WPE 2 1972 1982 STA No quality assessment [R670]
WPE 3 1991 2001 STA/INC No quality assessment [R190]
WPE 4 1991 2001 STA/INC No quality assessment [R190]
WPE 5 1991 2001 STA/INC No idea [R190]
AEWA CSR 4 1991 2001 STA/INC No idea [R190]
AEWA CSR 5 1991 2001 STA/INC No idea [R190]
AEWA CSR 6 2003 2011 STA/FLU Good [T6747] [R1514] [R1515] [R1371] [R1519]
AEWA CSR 7 2003 2011 STA/FLU Good [T6747] [R1514] [R1515] [R1371] [R1519]

Population 1% level

Publication Yearset 1 percent Note
WPE 1 1994 500
WPE 2 1997 500
WPE 3 2002 1500
WPE 4 2006 2250
WPE 5 2012 2300
AEWA CSR 4 -1 -1 Not Set
AEWA CSR 5 -1 -1 Not Set
AEWA CSR 7 2018 2800

References

  • R670 - Urban, E.K., Fry, C.H. and Keith, S. 1986. The Birds of Africa. Volume II. Academic Press, London and Orlando.
  • R678 - Veen, J., Peeters, J. Leopold, M., van Damme, C. and Veen, P. in press 2002. Effected van visserij op natuurwarden langs de kust van West Afrika: visetende vogels als graadmeters voor de kwaliteit van het mariene milieu. Alterra rapport, Wageningen, The Netherlands
  • R190 - Dodman, T. 2002. Waterbird Population Estimates in Africa. Unpublished report to Wetlands International.
  • R679 - Veen, Jan, In litt. 2005.
  • R1514 - Veen, J., Dallmeijer, H., Diagana, C. 2007. Monitoring colonial nesting birds along the West African Seaboard. Wetlands International Africa, Dakar, Senegal. Pp 37.
  • R1371 - Dodman, T. 2014. Status, Estimates and Trends of Waterbird Populations in Africa: AEWA-listed African populations. Wetlands International. (CSR6 African populations) URL: https://www.wetlands.org/publications/1304/
  • R1359 - van Roomen, M., van Winden, E. & Langendoen, T. 2014. The assessment of trends and population sizes of a selection of waterbird species and populations from the coastal East Atlantic Flyway for Conservation Status Report 6 of The African Eurasian Waterbird Agreement. Wadden Sea Flyway Initiative, Wetlands International & Birdlife International.
  • R1519 - Veen, J. in litt., 2014
  • R1515 - Veen, J., Mullié, W.C., Sylla, C.M., Robinson, P. & Diop, M.S. 2011. Suivi de la reproduction 2011 des colonies d’oiseaux marins de l’Ile aux Oiseaux, Parc National du Delta du Saloum. VEDA Consultancy, Wenum Wiesel / DPNS, Parc National du Delta du Saloum / Wetlands International, Dakar.
  • R1775 - Folmer, E., Veen, T., Veen, J. 2019. A census of colonial breeding seabirds along the West African seaboard in 2019. BirdLife International Coastal Seabirds Project, Dakar.
  • 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

  • S2470 - 75,000 pairs (150,000 individuals) in 2004 (687).
  • S8708 - 85,000-105,000 pairs.
  • T6747 - A decrease in the numbers of Royal Terns in 2011 on Ile aux Oiseaux, Senegal can partly or completely be explained by an increase on other islands.
  • S9576 - 76,218 pairs.
  • T7664 - Based on IWC data, van Roomen et al. (2018) reported uncertain trend for 1992-2017 (1.01) and steep decline for 2009-2017 (0.78).



Copyright Wetlands International 2012

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