Population information

Order name Charadriiformes
Family name Laridae
Scientific name Larus hartlaubii Common name Hartlaub's Gull
Population name Coastal South-west Africa
Breeding range Coastal SW Africa C Namibia - SW Cape Province Non-breeding range
Red List Category Least Concern
Ramsar regions Africa
Notes Sometimes considered conspecific with L. novaehollandiae.

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 30,000 30,000 [R196]
WPE 4 0 0 30,000 30,000 [R196]
WPE 1 0 0 25,000 25,000 [R701] [R700]
WPE 2 0 0 25,000 25,000 [R701] [R700]
WPE 5 2001 2001 30,000 30,000 Expert opinion [R196]
CSR 4 2001 2001 30,000 30,000 Expert opinion [R196]
CSR 5 2001 2001 30,000 30,000 Expert opinion [R196]
CSR 6 2002 2002 25,000 35,000 Expert opinion [S8632] [R190] [R196]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 3 1990 2000 INC [R196]
WPE 4 1990 2000 INC [R196]
WPE 1 0 0 Unknown
WPE 2 0 0 Unknown
WPE 5 1997 2007 INC Reasonable [T5106] [R888]
CSR 4 1991 2001 INC Reasonable
CSR 5 1997 2007 INC Reasonable [T1489] [R888]
CSR 6 2003 2012 STA/FLU Poor [R1381]

Population 1% level

Publication Yearset 1 percent Note
WPE 3 2002 300
WPE 4 2006 300
WPE 1 1994 250
WPE 2 1997 250
WPE 5 2012 300
CSR 4 0 -1
CSR 5 0 -1

References

  • 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
  • R701 - Williams, A.J. 1993. Distribution, status and conservation of gulls in sub-saharan Africa and the Red Sea. (Abstracts). In: Wilson, R.T. (ed.). Birds and the African Environment: Proceedings of the Eighth Pan-African Ornithological Congress. Annales Musée
  • R700 - Williams, A.J. and Crawford, R.J.M. 1993.Distribution, Status and Conservation of Pelecaniform birds in Sub-Saharan Africa and the Red Sea (Abstracts). In: Wilson, R.T. (ed.) Birds and the African Environment: Proceedings of the eigth Pan-African Ornithological Congress. Annales Musee Royale de l'Afrique Centrale (Zoologie) Vol 268.
  • R888 - Wetlands International, 2012. Results of trend analysis undertaken for CSR5 2012, presented in Annex 4. http://www.unep-aewa.org/meetings/en/mop/mop5_docs/pdf/mop5_14_csr5.pdf
  • R190 - Dodman, T. 2002. Waterbird Population Estimates in Africa. Unpublished report to Wetlands International.
  • R1381 - Nagy, S., Flink, S., Langendoen, T. (2014) Waterbird trends 1988-2012: Results of trend analyses of data from the International Waterbird Census in the African-Eurasian Flyway. Wetlands International, Ede.
  • R1548 - Wetlands International (2017) Flyway trend analyses based on data from the African-Eurasian Waterbird Census from the period of 1967-2015. Ede, The Netherlands: Wetlands International. Temporary URL: https://www.dropbox.com/sh/r76f4eyuhzu65co/AADzzQkhySsUDsmwFJUcHs91a?dl=0

Notes

  • T5106 - Wetlands International 2012. Trend 1992-2007: +3.9% p.a. ? Increase.
  • T1489 - 898. Trend 1992-2007: +3.9% p.a. – Increase.
  • S8632 - The former estimate of 30,000 is given as a range, which is more appropriate as breeding data on which the 30,000 was based came from a range of different years / decades.
  • T7047 - Possibly declining in the short-term, but this seems to be part of a long-term fluctuation. Overall, still a strong increase in the long-term despite of the recent decline.



Copyright Wetlands International 2012

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