Population information

Nom ordre Charadriiformes
Nom famille Laridae
Nom scientifique Thalasseus bergii Nom courant Greater Crested Tern
Nom population velox, Persian Gulf & Indian Ocean (bre)
Aire de reproduction Persian Gulf E to Maldives, Sri Lanka, Myanmar Aire de non-reproduction Indian Ocean Kenya to Myanmar
Catégorie de la Liste Rouge Least Concern
Regions Ramsar Africa Asia
Notes In WPE2 this population belonged to one single population (NE Africa/SW & S Asia).

Réseau de conservation

Réseau de conservation Notes
CAF Action Plan
Note:

Taille de population

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 3 0 0 -1 -1 No quality assessment
WPE 4 0 0 100,000 1,000,000 No quality assessment [S2504] [R192]
WPE 5 0 0 100,000 1,000,000 Best guess [S7334] [R192]
AEWA CSR 6 1990 2012 60,000 100,000 Best guess [S8434]
AEWA CSR 7 1990 2012 60,000 100,000 Best guess [S8434]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 3 0 0 Unknown No quality assessment
WPE 4 0 0 Unknown No quality assessment
WPE 5 0 0 Unknown No idea
AEWA CSR 6 0 0 Unknown No quality assessment
AEWA CSR 7 0 0 Unknown No quality assessment

Population 1% level

Publication Yearset 1 percent Note
WPE 3 -1 -1 Not Set
WPE 4 2006 10000
WPE 5 2012 10000
AEWA CSR 6 -1 -1 Not Set
AEWA CSR 7 2018 0

References

  • R192 - Dodman, T., 2006. Status, estimates and trends of waterbird populations in Africa. Wetlands International, Dakar.

Notes

  • S2504 - 33,000 pairs (99,000 individuals) in the Middle East (180). Many additional breeding sites in Indian Ocean.
  • S7334 - 33,000 pairs (99,000 individuals) in the Middle East (180). Many additional breeding sites in Indian Ocean.
  • S8434 - Del Hoyo (1996) estimated the whole population at 33,000 pairs for the whole Middle East. However, Jennings (2010) estimated the total breeding population of Arabia at 13,000 pairs from which 2,000 pairs belong to the Red Sea & North-east African population. Tayafeh et al. (2013) reported 2,887-4,614 pairs from IR. Only one marine IBA (Burnt Island Vengurla Rocks, India) with 5,000 pairs identified in the Indian Ocean. These add up to 56,000-62,000 pairs and even by allowing for some smaller colonies that are either unknown or do not meet the IBA criteria, it is fairly unlikely that the population exceeds 100,000 individuals.



Copyright Wetlands International 2012

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