Population information

Order name Charadriiformes
Family name Laridae
Scientific name Thalasseus bergii Common name Greater Crested Tern
Population name velox, Persian Gulf & Indian Ocean (bre)
Breeding range Persian Gulf E to Maldives, Sri Lanka, Myanmar Non-breeding range Indian Ocean Kenya to Myanmar
Red List Category Least Concern
Ramsar regions Africa Asia
Notes In WPE2 this population belonged to one single population (NE Africa/SW & S Asia).

Conservation Framework

Conservation framework Notes
CAF Action Plan
AEWA Added by SN on 11/11/2017 - see AEWA Table 1
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 3 0 0 -1 -1
WPE 4 0 0 100,000 1,000,000 [S2504] [R192]
WPE 5 0 0 100,000 1,000,000 Best guess [S7334] [R192]
CSR 6 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
WPE 4 0 0 Unknown
WPE 5 0 0 Unknown No idea
CSR 6 0 0 Unknown

Population 1% level

Publication Yearset 1 percent Note
WPE 3 0 -1
WPE 4 2006 10000
WPE 5 2012 10000
CSR 6 0 -1

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