Population information

Order name Gruiformes
Family name Rallidae
Scientific name Rallus obsoletus Common name Ridgway's Rail
Population name levipes
Breeding range Coastal S California to N Baja California Non-breeding range
Red List Category Near Threatened
Ramsar regions North America
Notes

Conservation Framework

Conservation framework Notes
No conservation frameworks
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 3 1993 1993 970 1,170 [R207]
WPE 4 1993 1993 970 1,170 [R207]
WPE 1 0 0 -1 -1
WPE 2 0 0 -1 -1
WPE 3 1993 1993 970 1,170 [R207]
WPE 4 1993 1993 970 1,170 [R207]
WPE 1 0 0 -1 -1
WPE 2 0 0 -1 -1
WPE 3 1993 1993 970 1,170 [R207]
WPE 4 1993 1993 970 1,170 [R207]
WPE 1 0 0 -1 -1
WPE 2 0 0 -1 -1
WPE 3 1993 1993 970 1,170 [R207]
WPE 4 1993 1993 970 1,170 [R207]
WPE 1 0 0 -1 -1
WPE 2 0 0 -1 -1
WPE 3 1993 1993 970 1,170 [R207]
WPE 4 1993 1993 970 1,170 [R207]
WPE 1 0 0 -1 -1
WPE 2 0 0 -1 -1
WPE 5 2007 2007 1,320 1,330 Expert opinion [S6096] [R1178]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 3 1980 1990 DEC [R178]
WPE 4 1980 1990 DEC [R178]
WPE 1 0 0 Unknown
WPE 2 0 0 Unknown
WPE 3 1980 1990 DEC [R178]
WPE 4 1980 1990 DEC [R178]
WPE 1 0 0 Unknown
WPE 2 0 0 Unknown
WPE 3 1980 1990 DEC [R178]
WPE 4 1980 1990 DEC [R178]
WPE 1 0 0 Unknown
WPE 2 0 0 Unknown
WPE 3 1980 1990 DEC [R178]
WPE 4 1980 1990 DEC [R178]
WPE 1 0 0 Unknown
WPE 2 0 0 Unknown
WPE 3 1980 1990 DEC [R178]
WPE 4 1980 1990 DEC [R178]
WPE 1 0 0 Unknown
WPE 2 0 0 Unknown
WPE 5 1980 2007 INC [T4542] [R1178]

Population 1% level

Publication Yearset 1 percent Note
WPE 3 2002 10
WPE 4 2006 10
WPE 1 0 -1
WPE 2 0 -1
WPE 3 2002 10
WPE 4 2006 10
WPE 1 0 -1
WPE 2 0 -1
WPE 3 2002 10
WPE 4 2006 10
WPE 1 0 -1
WPE 2 0 -1
WPE 3 2002 10
WPE 4 2006 10
WPE 1 0 -1
WPE 2 0 -1
WPE 3 2002 10
WPE 4 2006 10
WPE 1 0 -1
WPE 2 0 -1
WPE 5 2012 15

References

  • R207 - Eddleman, W.R. and Conway, C.J. 1994. Clapper Rail. Pages 167-179 In: Migratory shorebird and upland game bird management in North America. (Tacha, T.C. and Braun, C.E (eds.)
  • R178 - del Hoyo, J., Elliot, A. and Sargatal, J. (eds). 1996. Handbook of the Birds of the World. Volume 3: Hoatzin to Auks. Lynx Edicions, Barcelona.
  • R1178 - U.S. Fish and Wildlife Service. 2009b. 5-year Review for Light-footed Clapper Rail. U.S. Fish and Wildlife Service, Carlsbad Fish and Wildlife Office Carlsbad, California

Notes

  • S6096 - 443 Pairs in California. Mexico population size unknown.
  • T4542 - Californian population.



Copyright Wetlands International 2012

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