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Location Anguilla (to UK)
Central coordinates 63o 6.34' West  18o 10.52' North
IBA criteria B4i
Area 24 ha
Altitude
Year of IBA assessment 2013





Site description 

Rendezvous Bay Pond is a brackish pond located on the south western coastline of Anguilla. It consists of one main basin. The land to the north and east of the pond gradually increases in elevation with the distance. The land to the south and west is relatively flat. The pond is marl substrate on its northern side and sand substrate on its southern side. 

The western shore, within an area equalling to about half an acre, was infilled. It is separated from the pond only by a paved road which runs along western end of the pond. There is an unpaved, sandy road south of the pond along with access pathways/roads to the east and north. The Anguilla Great House Hotel and Old Caribe Restaurant are located behind the road on the western side of the pond. The abandoned Old Rendezvous Bay Hotel lined the southern road. The northern side of the pond has two villas and two residential homes. The eastern side of the pond is relatively undeveloped but its fields are used for animal grazing.

Vegetation is very sparse around the edges of the pond especially on its southern side and western end. The vegetation on the eastern end of the pond is heavily grazed by cows as well as by sheep and goats. The vegetation which is most dense on the eastern end of the pond is mainly scrub plants while buttonwood mangroves line the western end of the pond. The south side of the pond is mainly grasses as well as a few other salt tolerant plants, including the morning glory and cow bean vines.

The western end of the pond has been subject to some infilling and pollution, most recently for the provision of a parking lot for guests to the hotel and beach. This has resulted in a parking lot filled with pools of water during heavy rains. The material used to infill the pond was construction waste and pieces pieces of used steel, old fencing which is rusting and concrete has potential to affect the quality of water within the pond as well as harm those birds which particularly like this area for feeding.

Hydrological value:

This pond consists of a single shallow, brackish basin. The pond receives freshwater from rainfall and run off. Springs are also a source of freshwater for this pond. The pond has water within its basin year round. Its salt content can be attributed to the nearby bay with salt water seeping into the pond through the thin strip of sandy beach separating the pond and sea. Salinity levels, however, have not been monitored within the pond. 

There is a on rock wall which splits the pond roughly in half. The walls served to limit water movement into the salt producing part of the pond until the end of commercial salt harvesting in Anguilla in the 1970’s.

Currently, monitoring of salinity, phosphates, nitrates, phosphates, pH, turbidity, dissolved oxygen and other gasses does not occur.

Key Biodiversity 

Overview of bird interests:

Bird numbers on this pond remained steadily at slightly above the 20 birds between 2007- 2011 with the exception of 2009 where the number observed doubled.

During this period, an average of 21 species was observed. Of these species, the most abundant species were White-cheeked pintail, Black-necked stilt, and Killdeer.

The pond is most active during the spring and summer, coinciding with the spring and fall bird migration periods.

Overview of botanical interests:

Additional studies required.

Overview of other biodiversity interests:

The invasive Green Iguana has been seen in the vegetation surrounding the pond. The Lesser Antilleans Iguanas on the island have been mating with the Green Iguanas which result in sterile offspring. The Anguilla National Trust has completed a project in 2000 to investigate the distribution and population of the Lesser Antillean Iguana (iguana delicatisima), their threats, ecology and diet. Lesser Antillean Iguanas are listed as endangered within the IUCN’s Redlist of Threatened Species.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Brown Pelican Pelecanus occidentalis non-breeding  2012  max 29 individuals  good  B4i  Least Concern 
Common Tern Sterna hirundo non-breeding  2007  max 5 individuals  good  B4i  Least Concern 
Least Tern Sternula antillarum breeding  2009  max 53 individuals  good  B4i  Least Concern 

IBA Monitoring

2013 high near favourable negligible
Population
Good - based on reliable and complete / representative data

Agricultural expansion and intensification annual & perennial non-timber crops - small-holder farming past (and unlikely to return) and no longer limiting small area/few individuals (<10%) no or imperceptible deterioration low
Agricultural expansion and intensification livestock farming and ranching (includes forest grazing) - small-holder grazing, ranching or farming happening now small area/few individuals (<10%) slow but significant deterioration low
Energy production and mining mining and quarrying past (and unlikely to return) and no longer limiting some of area/population (10-49%) no or imperceptible deterioration low
Geological events earthquakes/tsunamis happening now whole area/population (>90%) slow but significant deterioration high
Geological events volcanic eruptions likely in long term (beyond 4 years) whole area/population (>90%) slow but significant deterioration medium
Human intrusions and disturbance recreational activities happening now some of area/population (10-49%) no or imperceptible deterioration low
Human intrusions and disturbance war, civil unrest and military exercises past (and unlikely to return) and no longer limiting small area/few individuals (<10%) no or imperceptible deterioration low
Invasive and other problematic species and genes invasive non-native/alien species/diseases - named species happening now small area/few individuals (<10%) slow but significant deterioration low
Invasive and other problematic species and genes invasive non-native/alien species/diseases - named species happening now some of area/population (10-49%) slow but significant deterioration medium
Natural system modifications dams & water management/use - small dams happening now small area/few individuals (<10%) no or imperceptible deterioration low
Natural system modifications fire & fire suppression - increase in fire frequency/intensity happening now some of area/population (10-49%) slow but significant deterioration medium
Natural system modifications other ecosystem modifications happening now some of area/population (10-49%) moderate to rapid deterioration high
Pollution air-borne pollutants - smog happening now whole area/population (>90%) slow but significant deterioration high
Pollution domestic & urban waste water - run-off happening now small area/few individuals (<10%) slow but significant deterioration low
Pollution domestic & urban waste water - sewage happening now some of area/population (10-49%) slow but significant deterioration medium
Pollution excess energy - light pollution happening now some of area/population (10-49%) slow but significant deterioration medium
Pollution excess energy - noise pollution happening now majority/most of area/population (50-90%) slow but significant deterioration high
Pollution garbage & solid waste happening now some of area/population (10-49%) moderate to rapid deterioration high
Residential and commercial development housing and urban areas happening now small area/few individuals (<10%) moderate to rapid deterioration low
Residential and commercial development tourism and recreation areas past (and unlikely to return) and no longer limiting some of area/population (10-49%) moderate to rapid deterioration low
Transportation and service corridors roads and railroads happening now some of area/population (10-49%) slow but significant deterioration medium
Transportation and service corridors utility & service lines happening now small area/few individuals (<10%) no or imperceptible deterioration low

Sternula antillarum Least Tern 45 35 individuals 78 near favourable

Little/none of site covered (<10%)  No management planning has taken place  Very little or no conservation action taking place  negligible 

Habitats

IUCN habitat Habitat detail Extent (% of site)
Wetlands (inland) Freshwater lakes & pools  major
Coastline Sand dunes & beaches  major
Shrubland Arid lowland scrub  major
Forest Mangrove  minor

Land ownership Private/State

Land use

Land-use Extent (% of site)
tourism/recreation minor
Notes: birding
nature conservation and research major
Notes: Bird Monitoring
other major
Notes: Cultural Heritage Site

Protection status None

Access/Land-Owner requests None

Acknowledgements Author: Clarissa Lloyd, Anguilla National Trust.

Edited by: Farah Mukhida, Anguilla National Trust.

References 

Anguilla National Trust. ANT wetland bird count data (2007 – 2011). Unpublished.

Daniels, Edsel B. 2011. Anguilla Wetlands Mapping Project Report: A component of the UK DFID/OTEP funded “Building a Foundation for Anguilla’s Wetland Future” Project. Unpublished Report.

Holliday, S.H.; Hodge, K.V.D.; Hughes, D.E. 2007. A guide to the birds of Anguilla. Bedfordshire, England; Royal Society for the Protection of Birds.

Lloyd C. and Mukhida, F. 2012. The state of Anguilla’s wetland birds 2007-2011. The Valley, Anguilla: Anguilla National Trust.

Raffaele, H.; Wiley, J.;Garrido, O.; Keith, A. ; Raffaele, J. (2003) Birds of the West Indies. New Jersey, USA: Princeton University Press.

Subin, E, Dudley, J, Crock, J, Bryan, JAS, Thomas, R, Christian, I, Vanterpool, V & Warner, B (1998) A Field Guide to Anguilla’s Wetlands. Anguilla National Trust, The Valley, Anguilla

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Rendezvous Bay Pond. Downloaded from http://www.birdlife.org on 21/12/2014

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