Population information

Order name Charadriiformes
Family name Laridae
Scientific name Onychoprion aleuticus Common name Aleutian Tern
Population name N Pacific (bre)
Breeding range Sakhalin, Sea of Okhotsk, Kamchatka, Aleutians, SW Alaska Non-breeding range Poorly known; S China Sea, Philippines to Malay Peninsula
Red List Category Vulnerable
Ramsar regions Asia North America
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 25,000 100,000 No quality assessment [R165]
WPE 2 0 0 25,000 100,000 No quality assessment [R165]
WPE 3 0 0 30,000 35,000 No quality assessment [R387]
WPE 4 0 0 30,000 35,000 No quality assessment [R387]
WPE 5 2005 2005 17,000 20,000 No quality assessment [R1003]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 1965 1980 STA No quality assessment [R165]
WPE 2 1965 1980 STA No quality assessment [R165]
WPE 3 1965 1980 STA No quality assessment [R165]
WPE 4 1965 1980 STA No quality assessment [R165]
WPE 5 0 0 DEC? No idea [R1003]

Population 1% level

Publication Yearset 1 percent Note
WPE 1 -1 -1 Not Set
WPE 2 -1 -1 Not Set
WPE 3 2002 330
WPE 4 2002 330
WPE 5 2012 180

References

  • R165 - Croxall, J.P., Evans, P.G.H. and Schreiber, R.W. (eds.). 1984. Status and Conservation of the World's Seabirds. ICBP Technical Publication No. 2. Cambridge, UK.
  • R387 - Kushlan, James, A., Melanie J. Steinkamp, Katharine Parsons, Jack Capp, Martin Acosta Cruz, Malcolm Coulter, Ian Davidson, Loney Dickson, Naomi Edelson, Richard Elliot, R. Michael Erwin, Scott Hatch, Stephen Kress, Robert Milko, Steve Miller, Kyra Mills, Richard Paul, Roberto Phillips, Jorge E. Saliva, Bill Sydeman, John Trapp, Jennifer Wheeler, and Kent Wohl. 2002. North American Waterbird Conservation Plan, Version 1. Waterbird Conservation for the Americas, Washington, DC, USA.
  • R1003 - Alaska Seabird Information Series. 2006a. Aleutian Tern Onychoprion aleutica. U.S. Fish and Wildlife Serivce - Alaska.
  • R1824 - BirdLife International (2021) Species factsheet: Onychoprion aleuticus. Downloaded from http://www.birdlife.org on 31/03/2021; Renner, H.M., Romano, M.D., Renner, M., Pyare, S., Goldstein, M.I. & Arthukin, Y. 2015. Assessing the breeding distribution and population trends of the Aleutian Tern Onychoprion aleuticus. Marine Ornithology 43: 179–187
  • R1947 - Renner, H.M., Romano, M.D., Renner, M., Pyare, S., Goldstein, M.I. & Arthukin, Y. 2015. Assessing the breeding distribution and population trends of the Aleutian Tern Onychoprion aleuticus. Marine Ornithology 43: 179–187

Notes

  • S9626 - A minimum worldwide breeding population of Aleutian Terns as 31,131 birds across 202 colonies, with 18% (5 529 birds in 110 colonies) in Alaska and 82% (25,602 birds in 92 colonies) in RU (Renner et al.2015). Based on the minimum total recorded by Renner et al. (2015), the global population estimate has therefore been revised to 31,000 mature individuals by BirdLife (2020 Datazone).
  • T7851 - No population trend assessment for the species across its range. Trends at known colonies within discrete geographic regions of Alaska (Aleutian Islands, Bering Sea, Chukchi Sea, Gulf of Alaska and Kodiak Island) were consistently negative; only represent <20% of the global population. Trend analysis indicated that colony counts in Alaska declined on average 8.1% per year (95% credible interval 10.7%–5.5%) between 1960 and 2013. RU hosts about 80% of the population, where in some regions, numbers appear to have increased substantially in recent decades, especially on Sakhalin Island and the southern coast of the Koryak Highland (Renner at al 2015).



Copyright Wetlands International 2012

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