Population information

Order name Charadriiformes
Family name Laridae
Scientific name Larus schistisagus Common name Slaty-backed Gull
Population name NE Asia
Breeding range Coast NE Siberia Cape Navarin - Kamchatka - N Japan - Vladivostok Non-breeding range NE Asia Pacific S to Taiwan
Red List Category Least Concern
Ramsar regions Asia
Notes

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 25,000 1,000,000 No quality assessment [R714]
WPE 2 0 0 25,000 1,000,000 No quality assessment [R714]
WPE 3 0 0 25,000 1,000,000 No quality assessment [R714]
WPE 4 0 0 25,000 1,000,000 No quality assessment [R714]
WPE 5 0 0 25,000 1,000,000 Best guess [R714]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 0 0 Unknown No quality assessment
WPE 2 0 0 Unknown No quality assessment
WPE 3 0 0 Unknown No quality assessment
WPE 4 0 0 Unknown No quality assessment
WPE 5 0 0 Unknown No idea

Population 1% level

Publication Yearset 1 percent Note
WPE 1 -1 -1 Not Set
WPE 2 -1 -1 Not Set
WPE 3 -1 -1 Not Set
WPE 4 -1 -1 Not Set
WPE 5 2012 10000

References

  • R714 - Yanagisawa, N., Fujimaki, Y. and Higuchi, H. (pers. comm.). 1993. Japanese data on waterbird population sizes, summarised for IWRB.
  • R555 - Rose, P.M. and Scott, D.A. 1994. Waterfowl Population Estimates. IWRB Publication 29. Slimbridge, UK.
  • R1958 - Ministry of the Environment Japan. 2021. Monitoring site 1000 & Small Island Seabird Surveys 2004-2018 Summary Report. Ministry of the Environment, Natural Environment Bureau, Biodiversity Center, Japan.
  • R1962 - Senzaki M, Terui A, Tomita N, Sato F, Fukuda Y, KataokaY & Watanuki Y (2020) Long-term declines in common breeding seabirds in Japan. Bird Conservation International 30: 434-446.

Notes

  • S9738 - No information available for a new assessment; previous estimate from 1994 (Rose and Scott, 1994). KR mean of 4,368 (2,168-6,289 in 2016-2020), based on Winter Waterbird Census of Korea by NIBR.
  • T7866 - No information available for a new assessment; previous estimate from 1994 (Rose and Scott, 1994). However, In JP (Ministry of the Environment Japan. 2021) numbers decreased by 65% from 1980 to 2015 as per analysis of the Japanese Seabird Colony Database and Senzaki et al. (2020); while trend in KR for 2011-2020 is STA, based on Winter Waterbird Census of Korea by NIBR. Trend elsewhere across range in RU and CN unknown.



Copyright Wetlands International 2012

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