Population information

Order name Charadriiformes
Family name Scolopacidae
Scientific name Calidris maritima Common name Purple Sandpiper
Population name NE Canada & N Greenland (breeding)
Breeding range NE Canada, (Greenland) Non-breeding range E North America S to Maryland, USA
Red List Category Least Concern
Ramsar regions North America
Notes

Conservation Framework

Conservation framework Notes
AEWA
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 2 0 0 10,000 10,000 [R471]
WPE 4 0 0 15,000 15,000 [S1195] [R473]
WPE 1 0 0 -1 -1
WPE 3 0 0 15,000 15,000 [R472]
WPE 5 1990 2003 20,000 30,000 Expert opinion [R860]
CSR 4 1990 2003 20,000 30,000 Expert opinion [R860]
CSR 5 1990 2003 20,000 30,000 Expert opinion [R860]
CSR 6 2004 2009 11,000 11,000 Expert opinion [S8345] [R1326] [R1463] [R63]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 2 1986 1996 INC [R483]
WPE 4 1994 2004 STA? [R473]
WPE 1 0 0 Unknown
WPE 3 0 0 INC
WPE 5 1997 2007 DEC? No idea [T4220] [R888]
CSR 4 1990 2003 DEC Poor
CSR 5 1997 2007 DEC? Poor [T901] [R888]
CSR 6 1999 2010 DEC? Reasonable [T6345] [R1007]

Population 1% level

Publication Yearset 1 percent Note
WPE 2 1997 100
WPE 4 2006 150
WPE 1 0 -1
WPE 3 2002 150
WPE 5 2012 240
CSR 4 0 -1
CSR 5 0 -1
CSR 6 0 -1

References

  • R471 - Morrison, R.I.G., Bourget, A., Butler, R., Dickson, H.L., Gratto-Trevor, C., Hicklin, P., Hyslop, C. and Ross, R.K. 1994. A preliminary assessment of the status of shorebird populations in Canada. Can. Wildl. Serv. Progress Notes No. 28. March 1994. 19pp.
  • R483 - National Biological Service. (no date). The Audubon Christmas Bird Count.
  • R473 - Morrison, R.I.G., McCaffery, B.J., Skagen, S., Andres, B., Page, G., Jones, S., and Gill, R.E. 2005. Population estimates of North American shorebirds, 2005. Draft MS.
  • R472 - Morrison, R.I.G., Gill, Jr., R.E., Harrington, B.A. Skagen, S., Page, G.W., Gratto-Trevor, C.L. and Haig, S.M. (2001) Estimates of shorebird populations in North America. Occasional Paper No. 104, Canadian Wildlife Service, Ottawa, Ontario. 64pp.
  • R860 - Delany, S., Scott, D., Dodman, T. and Stroud, D. 2009. An Atlas of Wader Populations in Africa and Western Eurasia. Wetlands International, Wageningen, The Netherlands.
  • 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
  • R1326 - Musgrove, A. J., Austin, G. E., Hearn, R. D., Holt, C. A., Stroud, D. A., & Wotton, S. R. (2011). Overwinter population estimates of British waterbirds. British Birds, 104(7), 364.
  • R1463 - Crowe & Holt, 2013
  • R63 - BirdLife International (2004)b. Birds in Europe, population estimates, trends and conservation status. Cambridge, UK: BirdLife International. (BirdLife Conservation Series No. 12).
  • R1007 - Andres, B.A., Smith, P.A., Gratto-Trevor, C.L. & Morrison, R.I.G. 2012. Population estimates of North American shorebirds. In prep. [Temporary reference; final title to be confirmed.]
  • 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

  • S1195 - Estimate of 15,000 includes all belcheri and unknown (but probably small) proportion of maritima from NE Canada.
  • T4220 - Wetlands International 2012. Trend 1983-2007: -1.3% p.a. ? Decline.
  • T901 - 898. Trend 1983-2007: -1.3% p.a. – Decline.
  • S8345 - Revised estimates for the UK 75% of 13,000 individuals (Musgrove, 2011) and 470 individuals for IE (Crowe & Holt, 2013) and 500-1,200 on FO (BirdLife International, 2004) suggest a total of 11,000-11,500 individuals.
  • T6345 - Trend is calculated for both populations in the UK. However, Andres et al. (2012) also suggests decrease for the population based on CBC counts.
  • T7147 - Steep decline since 1991. Andres et al. (2012) also suggests decrease for the population based on CBC counts.



Copyright Wetlands International 2012

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