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Location Virgin Islands (to UK)
Central coordinates 64o 16.95' West  18o 42.07' North
IBA criteria A2, A4i, B4i, B4ii
Area 4,000 ha
Altitude 0 - 5m
Year of IBA assessment 2014





Site description Anegada is a flat limestone island and has a different landscape from the other islands within the British Virgin Islands. The soils are shallow and alkaline, predominantly composed of calcium carbonate and detritus. Rainfall is approximately 800mm or less throughout the island and as a result, the vegetation is mainly xerophytic, coastal scrub and dry woodland. Mangroves, primarily Red Mangrove, fringe much of the south and east coast and interior wetlands. The western sandy plain consists of edaphic and xeric vegetation. It has the most diverse range of flora including the yellow prickle, Guaiacum sp, and loblollies, Pisonia sp. The entire north coast is sandy beach with calcareous sediments. They are fringed by littoral hedges such as Bay Cedar, and Sea Grape. The IBA covers the networks of salt ponds in the eastern and western ends of the island including the mangrove network that provide important habitats for migratory and resident birds. The Flamingo Pond, a salt pond of over 445 hectares on the Western end of the island was declared as the Anegada Nature Reserve in 1977 and a RAMSAR site in 1999. The extensive ponds on the eastern end of the island with large stands of pristine mangrove are presently unprotected.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Brown Pelican Pelecanus occidentalis resident  2007  27 individuals  poor  B4i  Least Concern 
Masked Booby Sula dactylatra non-breeding  2007  18 individuals  poor  B4ii  Least Concern 
Laughing Gull Larus atricilla breeding  2007  150 individuals  poor  B4i  Least Concern 
Royal Tern Thalasseus maximus resident  2007  21 individuals  poor  B4i  Least Concern 
Sandwich Tern Thalasseus sandvicensis resident  2007  275 individuals  poor  B4i  Least Concern 
Roseate Tern Sterna dougallii breeding  2007  157 individuals  poor  A4i  Least Concern 
Least Tern Sternula antillarum breeding  2005  60 breeding pairs  poor  B4i  Least Concern 
Anthracothorax dominicus resident  2007  unknown  A2  Not Recognised 
Green-throated Carib Eulampis holosericeus resident  2005  unknown  A2  Least Concern 
Antillean Crested Hummingbird Orthorhyncus cristatus resident  2005  unknown  A2  Least Concern 
Caribbean Elaenia Elaenia martinica resident  2007  unknown  A2  Least Concern 
Puerto Rican Flycatcher Myiarchus antillarum resident  2005  unknown  A2  Least Concern 
Pearly-eyed Thrasher Margarops fuscatus resident  2007  unknown  A2  Least Concern 

Habitats

IUCN habitat Habitat detail Extent (% of site)
Sea Sand dunes and beaches - coastal; Shallow marine waters  major
Forest Mangrove  major
Shrubland Scrub  major

Land use

Land-use Extent (% of site)
nature conservation and research -
not utilised -
tourism/recreation minor

Other biodiversity While the extensive mangrove and arid coastal habitats are typically West Indian, the island does support endemic wildlife. Plants such as the Anegada Acacia, Acacia anegadensis (CR), and Cyanchum anegadense, are known only on this island, although additional plant species, rare and endangered in other locales, are found here.Anegada is home to the critically endangered Rock Iguana, Cyclura pinguis which is currently being rehabilitated through the conservation efforts of the Trust and its international partners.

Further web sources of information 

Site profile from Important Bird Areas in the Caribbean: key sites for conservation (BirdLife International 2008)

Contribute  Please click here to help BirdLife conserve the world's birds - your data for this IBA and others are vital for helping protect the environment.

Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Anegada: Western salt ponds and coastal areas. Downloaded from http://www.birdlife.org on 31/10/2014

To provide new information to update this factsheet or to correct any errors, please email BirdLife