Population information

Order name Podicipediformes
Family name Podicipedidae
Scientific name Tachybaptus rufolavatus Common name Alaotra Grebe
Population name Madagascar
Breeding range N Central Madagascar Non-breeding range
Red List Category Extinct
Ramsar regions Africa
Notes T. rufolavatus is treated as a subspecies of T. ruficollis by Sibley and Monroe (1992) but is elevated to full species by Sibley & Monroe (1993) in their supplement. (WPE2). Sometimes treated as a subspecies of T.ruficollis. (WPE4)

Conservation Framework

Conservation framework Notes
No conservation frameworks
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 1 0 0 0 50 [R688]
WPE 2 1987 1991 1 10 [R497]
WPE 3 0 0 0 10 [R302]
WPE 4 0 0 0 10 [S3039] [R192]
WPE 5 0 0 1 10 [S7535]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 1 1980 1990 EXT [R688]
WPE 2 1982 1990 DEC [R497]
WPE 3 1990 2000 DEC/EXT [R302]
WPE 4 1990 2000 DEC/EXT [R302]
WPE 5 1990 2000 DEC/EXT [R302]

Population 1% level

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

References

  • R688 - Waters, R.J. and Cranswick, P.A. 1993. The Wetland Bird Survey 1992-93; Wildfowl and Wader Counts. BTO/WWT/RSPB/JNCC, Slimbridge, UK.
  • R497 - O'Donnel, C.F.J. and Fjelds?, J. 1995. Grebes: a global action plan for their conservation. IUCN.
  • R302 - Hawkins, F., Andriamasimanana, R. Sam The Seeing and Rabeony, Z. (2000). The sad story of Alaotra Grebe Tachybaptus rufolavatus. Bull ABC Vol 7 No 2: 115-117.
  • R192 - Dodman, T., 2006. Status, estimates and trends of waterbird populations in Africa. Wetlands International, Dakar.

Notes

  • S3039 - Any remaining population assumed to be tiny, with no definite records since 1985 despite a recent survey in 1999.
  • S7535 - Declared extinct in 2010 (BirdLife International 2012o)



Copyright Wetlands International 2012

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