Population information

Order name Charadriiformes
Family name Laridae
Scientific name Onychoprion anaethetus Common name Bridled Tern
Population name melanopterus, W Africa
Breeding range Gulf of Guinea Islands, Coastal Mauritania - Senegal Non-breeding range Tropical E Atllantic
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 3 2001 2001 1,500 1,500 [R190]
WPE 4 2001 2001 1,500 1,500 [R190]
WPE 1 0 0 4,500 4,500 [R670]
WPE 2 0 0 4,500 4,500 [R165]
WPE 5 2001 2001 1,500 1,500 Best guess [R190]
CSR 4 2001 2001 1,500 1,500 Best guess [R190]
CSR 5 2001 2001 1,500 1,500 Best guess [R190]
CSR 6 2001 2001 1,500 1,500 Expert opinion [R190] [R1514]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 3 1991 2001 DEC [R190]
WPE 4 1991 2001 DEC [R190]
WPE 1 0 0 Unknown
WPE 2 0 0 Unknown
WPE 5 1991 2001 DEC Poor [R190]
CSR 4 1991 2001 DEC Poor [R190]
CSR 5 1991 2001 DEC Poor [R190]
CSR 6 1997 2004 STA? Poor [T6748] [R1514]

Population 1% level

Publication Yearset 1 percent Note
WPE 3 2002 15
WPE 4 2006 15
WPE 1 1994 45
WPE 2 1997 45
WPE 5 2012 15
CSR 4 0 -1
CSR 5 0 -1

References

  • R190 - Dodman, T. 2002. Waterbird Population Estimates in Africa. Unpublished report to Wetlands International.
  • R670 - Urban, E.K., Fry, C.H. and Keith, S. 1986. The Birds of Africa. Volume II. Academic Press, London and Orlando.
  • R165 - Croxall, J.P., Evans, P.G.H. and Schreiber, R.W. (eds.). 1984. Status and Conservation of the World's Seabirds. ICBP Technical Publication No. 2. Cambridge, UK.
  • R1514 - Veen, J., Dallmeijer, H., Diagana, C. 2007. Monitoring colonial nesting birds along the West African Seaboard. Wetlands International Africa, Dakar, Senegal. Pp 37.

Notes

  • T6748 - Banc d’Arguin: >210 in 1997, >180 in 1998 & >182 in 2004. Significant past declines at Banc d’Arguin, however.



Copyright Wetlands International 2012

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