Population information

Order name Charadriiformes
Family name Laridae
Scientific name Thalasseus maximus Common name Royal Tern
Population name albidorsalis, West Africa (bre)
Breeding range Coast of W Africa Mauritania to Guinea Non-breeding range Coast of W Africa Morocco to Namibia
Red List Category Least Concern
Ramsar regions Africa
Notes

Conservation Framework

Conservation framework Notes
AEWA
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 1 0 0 50,000 50,000 [R670]
WPE 2 0 0 50,000 50,000 [R670]
WPE 3 0 0 135,000 165,000 [R678]
WPE 4 0 0 225,000 225,000 [S2470] [R679]
WPE 5 2004 2004 225,000 225,000 Expert opinion [R679]
CSR 4 2004 2004 225,000 225,000 Expert opinion [R679]
CSR 5 2004 2004 225,000 225,000 Expert opinion [R679]
CSR 6 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 [R670]
WPE 2 1972 1982 STA [R670]
WPE 3 1991 2001 STA/INC [R190]
WPE 4 1991 2001 STA/INC [R190]
WPE 5 1991 2001 STA/INC No idea [R190]
CSR 4 1991 2001 STA/INC No idea [R190]
CSR 5 1991 2001 STA/INC No idea [R190]
CSR 6 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
CSR 4 0 -1
CSR 5 0 -1

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 Unpublished report to Wetlands International.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.

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.



Copyright Wetlands International 2012

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