|Location||Virgin Islands (to USA), St. John|
|Central coordinates||64o 44.74' West 18o 19.91' North|
|IBA criteria||A2, B4i|
|Year of IBA assessment||2007|
Site description St. John is the smallest of the U.S. Virgin Islands with 28 square miles, 53% (7,000 acres) of which is the Virgin Islands National Park. Most of the landscape is second growth with relatively few introduced plant and bird species. Diverse habitats include rocky and sandy coastlines, semi-arid thorn-cactus communities, a comprehensive assortment of tropical dry forest formations from coastal hedge to shrublands and canopied upland forests, moist forests, mangrove wetlands, freshwater and saltwater ponds, small agricultural/pasture lands, and small towns. The island receives an average of 44 inches of rainfall annually, but is highly seasonal, with the heaviest precipitation occurring from August to November, augmented by a late-spring wet period. The winter-spring dry season normally lasts 3 months or more.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Brown Pelican Pelecanus occidentalis||resident||2006||300 breeding pairs||poor||B4i||Least Concern|
|Bridled Quail-dove Geotrygon mystacea||resident||2007||-||-||A2||Least Concern|
|Green-throated Carib Eulampis holosericeus||resident||2007||present [units unknown]||-||A2||Least Concern|
|Antillean Crested Hummingbird Orthorhyncus cristatus||resident||2007||-||-||A2||Least Concern|
|Caribbean Elaenia Elaenia martinica||resident||2006||-||-||A2||Least Concern|
|Puerto Rican Flycatcher Myiarchus antillarum||resident||2007||-||-||A2||Least Concern|
|Pearly-eyed Thrasher Margarops fuscatus||resident||2007||present [units unknown]||-||A2||Least Concern|
|Lesser Antillean Bullfinch Loxigilla noctis||resident||2007||-||-||A2||Least Concern|
|Protected area||Designation||Area (ha)||Relationship with IBA||Overlap with IBA (ha)|
|Saint John||Marine Reserve and Wildlife Sanctuary||0||protected area contained by site||0|
|IUCN habitat||Habitat detail||Extent (% of site)|
|Land-use||Extent (% of site)|
|nature conservation and research||-|
Other biodiversity Green Turtles (Chelonia mydas) and Hawksbill Turtles (Eretmochelys imbricata) have been seen on St. John beaches and may nest. The Virgin Islands tree boa (Epicrates monensis granti) is listed as endangered by the VI Dept. of Fish & Wildlife. A number of endangered plant species have been identified on St. John including Eugenia earhartii (Earhart's eugenia), Solanum conocarpum (Marron baccora), Agave eggersiana (Eggers' agave), Erythrina eggersii (Eggers' cockspur), Machaonia woodburyana (Woodbury's machaonia), Calyptranthes thomasiana (St. Thomas lidflower), Zanthoxylum thomasianum (St. Thomas Prickly ash).
Protection status The Virgin Islands National Park, including nearshore coral reefs, is legally protected and managed by the U.S. National Park Service (NPS). The Nature Conservancy (TNC) has about 9 hectares in its Coral Bay Preserve and Island Resources Foundation (IRF) has the Nancy Spire Nature Preserve consisting of approximately 17 hectares. All mangroves in the U.S. Virgin Islands are legally protected.
References Boulon, R.H. and D. M. Griffin (1999); McLaughlin, M.(Eds)(1976);Platenberg et al. (2005); Raffaele et al. (2003);Raffaele, H. (1989).
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Recommended citation BirdLife International (2013) Important Bird Areas factsheet: St John. Downloaded from http://www.birdlife.org on 20/12/2013
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