Population information

Order name Charadriiformes
Family name Scolopacidae
Scientific name Numenius tenuirostris Common name Slender-billed Curlew
Population name Central Siberia/Mediterranean & SW Asia
Breeding range SW Siberia? Non-breeding range NE, C & SW Mediterranean Basin, Morocco, Persian Gulf?
Red List Category Critically Endangered
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 0 100 400 [R276]
WPE 2 0 0 100 400 [R276]
WPE 3 1999 1999 0 50 [R68]
WPE 4 2005 2005 0 50 [R64]
WPE 5 2005 2005 1 1 Expert opinion [R64]
CSR 4 2005 2005 1 1 Expert opinion [R64]
CSR 5 2005 2005 1 1 Expert opinion [R64]
CSR 6 2014 2014 0 50 Best guess [S8692] [R1476]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 1981 1991 DEC [R276]
WPE 2 1981 1991 DEC [R276]
WPE 3 1990 2000 DEC [R68]
WPE 4 1995 2005 DEC [R64]
WPE 5 1990 2000 DEC Poor [R64]
CSR 4 1990 2000 DEC Poor [R64]
CSR 5 1990 2000 DEC Poor [R64]
CSR 6 2000 2014 DEC/EXT Poor [T6684] [R1475]

Population 1% level

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

References

  • R276 - Gretton, A. 1991. The Ecology and Conservation of the Slender-billed Curlew (Numenius tenuirostris). Monograph No. 6. International Council for Bird Preservation, Cambridge, UK. 159 pp.
  • R68 - BirdLife International. (2000). Threatened Birds of the World. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife international
  • R64 - BirdLife International. 2005. Threatened birds of the world 2005. Species factsheets available at?www.birdlife.org
  • R1476 - BirdLife International (2014) Species factsheet: Numenius tenuirostris. Downloaded from http://www.birdlife.org on 09/10/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 09/10/2014.
  • R1475 - Crockford, N., in litt. 2014

Notes

  • S8692 - The population is assumed to be tiny (fewer than 50 individuals and mature individuals) based on small number of recent records, most of which are of just 1-3 individuals (BirdLife International, 2014). The maximum value only corresponds to the upper threshold for Critically Endangered species under the IUCN Red List criteria.
  • T6684 - The last undisputed record with sufficient evidence for incontrovertible identification was on February 1995 in Morocco, despite subsequent intensive searches of the non-breeding range (Crockford in litt., 2014).



Copyright Wetlands International 2012

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