Population information

Order name Charadriiformes
Family name Laridae
Scientific name Sternula balaenarum Common name Damara Tern
Population name Namibia & South Africa/Atlantic coast to Ghana
Breeding range Namibia to Cape Province South Africa Non-breeding range SW South Africa to Nigeria, W to Liberia
Red List Category Vulnerable
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 0 0 14,000 14,000 [R593]
WPE 4 0 0 14,000 14,000 [R593]
WPE 1 0 0 13,000 13,000 [R591]
WPE 2 0 0 14,450 14,450 [R591]
WPE 5 1997 2001 14,000 14,000 Expert opinion [R196] [R593]
CSR 4 1997 2001 14,000 14,000 Expert opinion [R196] [R593]
CSR 5 1997 2001 14,000 14,000 Expert opinion [R196] [R593]
CSR 6 2012 2014 3,000 7,250 Expert opinion [S8694] [R1391]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 3 1991 2001 STA [R190]
WPE 4 1991 2001 STA [R190]
WPE 1 0 0 Unknown
WPE 2 0 0 Unknown
WPE 5 1991 2001 STA Poor [R190]
CSR 4 1991 2001 STA Poor [R190]
CSR 5 1991 2001 STA Poor [R190]
CSR 6 2003 2014 DEC? Reasonable [T6697] [R1391] [R1359] [R1490]

Population 1% level

Publication Yearset 1 percent Note
WPE 3 2002 140
WPE 4 2006 140
WPE 1 1994 130
WPE 2 1997 145
WPE 5 2012 140
CSR 4 0 -1
CSR 5 0 -1

References

  • R593 - Simmons, R.E., Cordes, I. and Braby, R. 1998. Latitudinal trends, population size and habitat preferences of the Damara Tern Sterna balaenarum on Namibia's desert coast. Ibis 140: 439-445.
  • R190 - Dodman, T. 2002. Waterbird Population Estimates in Africa. Unpublished report to Wetlands International.
  • R591 - Simmons, R. (in press). Distribution and density trends of Damara Terns along Namibia?s desert coast. In. Underhill, L.G., Cooper, J. and Simmons, R.E. (eds.). (in press). Southern Birds. Univ. of Cape Town.
  • R196 - du Toit, M., Boere, G.C., Cooper, J., Kemper, J., Lenten, B., Simmons, R.S., Whittington, P.A. and Byers, O. (eds). 2002. Conservation assessment and management plan for southern African coastal seabirds. Workshop Report, Cape Town, South Africa, 4-8 Feb
  • R1391 - Wanless, R. et al. (in prep.) Action Plan for the Benguela Current seabirds. AEWA Secretariat, Bonn.
  • 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.
  • R1490 - Angel, A., Wanless, R. & Hagen, C. 2014. Fact sheets for AEWA-listed seabird species in the Benguela region. Prepared for the African-Eurasian Waterbird Agreement by BirdLife South Africa. Manuscript.

Notes

  • S8694 - 50 pairs in ZA, 930-2,350 pairs in NA, 10 pairs in Angola (Wanless et al, in prep.).
  • T6697 - Number of colonies decreased due to recreational pressures and construction at its breeding grounds (Wanless et al., in prep.). Based on mid-winter counts, stable/fluctuating trend both in the long- and in the short-term (1992-2014 and 2003-2014, respectively) according to van Roomen et al. (2014). The species is possibly in significant long-term decline (Angel et al., 2014).



Copyright Wetlands International 2012

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