Population information

Order name Charadriiformes
Family name Scolopacidae
Scientific name Calidris canutus Common name Red Knot
Population name rogersi
Breeding range Chukotskiy Peninsula, far NE Russia Non-breeding range New Guinea, Australia, New Zealand.
Red List Category Near Threatened
Ramsar regions Asia Oceania
Notes WPE4 estimate included piersmai.

Conservation Framework

Conservation framework Notes
EAAF Partnership
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 1 0 0 255,000 255,000 [R170]
WPE 2 0 0 255,000 255,000 [R170]
WPE 3 0 0 220,000 220,000 [R35]
WPE 4 0 0 220,000 220,000 [S1105] [R36]
WPE 5 2009 2009 48,500 60,000 Census based [S6712] [R1155]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 0 0 Unknown
WPE 2 0 0 Unknown
WPE 3 0 0 Unknown
WPE 4 0 0 Unknown
WPE 5 1990 2009 DEC Good [R1155] [R1076]

Population 1% level

Publication Yearset 1 percent Note
WPE 1 1994 2000
WPE 2 1997 2000
WPE 3 2002 2200
WPE 4 2006 2200
WPE 5 2012 540

References

  • R170 - Davidson, N.C. and Piersma, T. (eds.). 1992. The migration of Knots. Wader Study Group Bulletin 68. Special Issue.
  • R35 - Bamford, M.J., Watkins, D.G., Bancroft, W. Tischler, G and Wahl, J. (2008). Migratory Shorebirds of the East Asian-Australasian Flyway; Population Estimates and Important Sites. Wetlands International - Oceania.
  • R36 - Bamford, M.J., Watkins, D.G., Bancroft, W. Tischler, G and Wahl, J. (in prep, 2006). Migratory Shorebirds of the East Asian-Australasian Flyway; Population Estimates and Important Sites. Wetlands International - Oceania.
  • R1155 - Rogers, D.I., Yang, H.Y., Hassell, C.J., Boyle, A.N., Rogers, K.G., Chen, B., Zhang, Z.W. and Piersma, T. 2010. Red Knots (Calidris canutus piersmai and C. c. rogersi) depend on a small, threatened staging area in Bohai Bay, China. Emu 110, 307?315.
  • R1076 - Garnett, S.T., Szabo, J.K. and Dutson, G. 2010. The Action Plan for Australian Birds 2010. CSIRO Publishing, Melbourne.

Notes

  • S1105 - 33, 32: The 2,000 wintering in India and few birds wintering in Sri Lanka apparently belong to this form.
  • S6712 - Substantial rate and period of decline, well documented across flyway. WPE5 estimate is much lower than for WPE4 and arises from a published review that accounts for partial loss (in NE Asia) of one of the population's most important staging areas. Ongoing comprehensive analysis by University of Queensland is anticipated to shortly provide a further reassessment.
  • S8792 - Substantial rate and period of decline, well documented across flyway. WPE5 estimate is much lower than for WPE4 and arises from a published review that accounts for partial loss (in NE Asia) of one of the population's most important staging areas. Ongoing comprehensive analysis by University of Queensland is anticipated to shortly provide a further reassessment.



Copyright Wetlands International 2012

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