Population information

Order name Charadriiformes
Family name Scolopacidae
Scientific name Calidris canutus Common name Red Knot
Population name canutus, Northern Siberia/West & Southern Africa
Breeding range Taymyr Peninsula (Central Siberia) Non-breeding range W Africa, Morocco to Gulf of Guinea, SW & S Africa
Red List Category Near Threatened
Ramsar regions Africa Asia Europe
Notes

Conservation Framework

Conservation framework Notes
AEWA
CAF Action Plan
EUBD
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 1 0 0 516,000 516,000 [R170]
WPE 2 0 0 516,000 516,000 [R170]
WPE 3 1990 2000 340,000 340,000 [R611]
WPE 4 0 0 400,000 400,000 [S1092] [R282]
WPE 5 2000 2006 400,000 400,000 Expert opinion [R189] [R282] [R645]
CSR 4 2000 2006 400,000 400,000 Expert opinion [R189] [R282] [R645]
CSR 5 2000 2006 400,000 400,000 Expert opinion [R189] [R282] [R645]
CSR 6 2010 2014 250,000 250,000 Census based [S8589] [R1359]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 1982 1992 STA [R170]
WPE 2 1982 1992 STA [R170]
WPE 3 1984 1997 DEC [R611]
WPE 4 0 0 Unknown [T841] [R190] [R645] [R169]
WPE 5 2006 2006 DEC? No idea [R908]
CSR 4 2006 2006 DEC? Poor [R908]
CSR 5 2006 2006 DEC? Poor [R908]
CSR 6 2003 2014 DEC Reasonable [T6582] [R1359]

Population 1% level

Publication Yearset 1 percent Note
WPE 1 1994 5000
WPE 2 1997 5000
WPE 3 2002 3400
WPE 4 2006 3400
WPE 5 2012 4000
CSR 4 0 -1
CSR 5 0 -1
CSR 6 0 -1

References

  • R170 - Davidson, N.C. and Piersma, T. (eds.). 1992. The migration of Knots. Wader Study Group Bulletin 68. Special Issue.
  • R611 - Stroud, D.A., Davidson, N.C., West, R., Scott, D.A., Haanstra, L., Thorup, O., Ganter, B. and Delany, S. (compilers) on behalf of the International Wader Study Group 2002. Status of migratory wader populations in Africa and Western Eurasia in the 1990s.
  • R282 - Hagemeijer, E.J.M., Smit, C.J., de Boer, P., van Dijk, A.J., Ravenscroft, N., van Roomen, M.W.J., and Wright, M. 2004. Wader and waterbird census at the Banc d'Arguin, Mauritania, January 2000. WIWO report 81. WIWO, Beek-Ubbergen.
  • R190 - Dodman, T. 2002. Waterbird Population Estimates in Africa. Unpublished report to Wetlands International.
  • R645 - Trolliet, B., and Fouquet, M. 2004. Wintering waders in coastal Guinea. Wader Study Group Bulletin. 103 : 56-62.
  • R169 - Davidson, N.C. and Stroud, D.A. in prep. East Atlantic Flyway wader population sizes and trends in West Africa 1979-2001: a graphical assessment. To be submitted to Wader Study Group Bulletin.
  • R189 - Dodman, T. and Sa, J. 2005. Waterbird Monitoring in the Bijagos Archipelago, Guinea Bissau. Wetlands International, Dakar, Senegal.
  • R908 - Pol, M. van de, Atkinson, P., Blew, J., Crowe, O., Delany, S., Duriez, O., Ens, B., H?lterlein, B., H?tker, H., Laursen, K., Oosterbeek, K., Petersen, A., Thorup, O., Tj?rve, K., Triplet, P., and Y?sou, P. In press, 2007. A global assessment of the conservation status of the nominate subspecies of Eurasian Oystercatcher (Haematopus ostralegus ostralegus).
  • 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.
  • R1552 - van Roomen M., Nagy S., Foppen R., Dodman T., Citegetse G. & Ndiaye A. 2015. Status of coastal waterbird populations in the East Atlantic Flyway. With special attention to flyway populations making use of the Wadden Sea. Programme Rich Wadden Sea, Leeuwarden, The Netherlands, Sovon, Nijmegen, The Netherlands, Wetlands International, Wageningen, The Netherlands, BirdLife International, Cambridge, United Kingdom &, Common Wadden Sea Secretariat, Wilhelmshaven, Germany. URL: http://www.waddensea-secretariat.org/sites/default/files/downloads/status_coastal_birds_eaf_2014_1.pdf
  • 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

  • S1092 - 676 recommend retaining earlier 1% level. 339: 500-1,000 wintering in Italy, Greece and Turkey probably from this population.
  • T841 - 192, 653 & 171: suggest increases in counts in West Africa in early 2000s; nearly 400,000 counted in 2001, the first time that Bijagos Archipelago and Banc d'Argiun counted in the same season (285, 191). Increases may reflect better information, not true increases in numbers. They have not been observed in European staging areas, where the population trend is still apparently decreasing (534).
  • S8589 - 249,614 individuals at the wintering grounds. Rounded to 250,000 birds.
  • T6582 - Based on mid-winter counts, large decrease both in the long- and in the short-term (1979-2014 and 2003-2014, respectively) according to van Roomen et al. (2014).
  • S9035 - 249,614 individuals at the wintering grounds. Rounded to 250,000 birds.



Copyright Wetlands International 2012

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