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Order
Family
Species
Population
Discontinued Size - year Size Size estimate quality Size references Trend - year Trend Trend quality Trend references 1% threshold 1% yearset Notes
Gaviiformes
Gaviidae
Gavia stellata (Red-throated Loon)
North-west Europe (win) 1990 - 2000 150,000 - 450,000 Expert opinion [R63] 1990 - 2000 STA Poor [R63] 2600 2012
Caspian, Black Sea & East Mediterranean (win) 1990 - 2000 1 - 10,000 Best guess [R63] 1990 - 2000 STA No idea [R66] 100 2012 [S7046]
E Asia (non-bre) 0 - 0 10,000 - 100,000 Best guess [R714] 0 - 0 Unknown No idea 1000 2012
North America 0 - 0 40,000 - 40,000 No quality assessment [R40] 1977 - 1993 DEC No quality assessment [R40] 400 2012 [S7048] [T5878]

References

  • R63 - BirdLife International (2004)b. Birds in Europe, population estimates, trends and conservation status. Cambridge, UK: BirdLife International. (BirdLife Conservation Series No. 12).
  • R66 - BirdLife International Website 2002
  • R714 - Yanagisawa, N., Fujimaki, Y. and Higuchi, H. (pers. comm.). 1993. Japanese data on waterbird population sizes, summarised for IWRB.
  • R40 - Barr, J.F., C. Eberl, and J.W. McIntyre 2000. Red-throated Loon (Gavia stellata). In The Birds of North America, No. 513 (A. Poole and F. Gill, eds.). The Birds of North America, Inc., Philadelphia, PA.

Notes

  • S7046 - BirdLife International 2004b. Total of 420-1,250 counted in E Med and E Black Sea; numbers wintering in N Black and Caspian Seas unknown but assumed to be below 9,000
  • S7048 - Erroneously high estimate given in WPE3. Groves et al. 1996: Alaskan breeding population 7,396-12,290 in early 1990s, a decline of nearly 50% since the 1970s.
  • T5878 - 280: Alaskan breeding population 7,396-12,290 in early 1990s, a decline of nearly 50% since the 1970s.



Copyright Wetlands International 2012

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