|Central coordinates||55o 40.00' East 4o 13.00' South|
|IBA criteria||A1, A2, A4i, A4ii, A4iii|
|Altitude||0 - 135m|
|Year of IBA assessment||2001|
Site description Aride (68.3 ha) is the most northerly of the granitic islands, lying 9 km north of Praslin and 45 km north-east of Mahé. The site also includes 105 ha of coastal marine habitat. A ridge of Precambrian granite, rising to 135 m, dominates a small plateau of 9 ha. There is a single beach 800 m long on the southern side of the island while the rest of the coastline is composed of cliffs and rocky shore. The island is densely covered with mixed native woodland dominated by Pisonia grandis, Ficus lutea and F. reflexa. Granite outcrops and open glades are abundant on the hill, where there are also smaller areas of Euphorbia pyrifolia scrub. A young, managed woodland, replanted with indigenous species (Callophyllum inophyllum, Terminalia catappa, Morinda citrifolia, etc.), and a small wetland, are present on the plateau. Human activities are limited to nature conservation, research and ecotourism (day visits and confined to main paths only). Most of the former coconut plantation has been progressively eliminated and the only remaining agricultural activity is restricted to a small garden for resident staff. Coral reefs surround the island.
|Species||Season||Period||Population estimate||Quality of estimate||IBA Criteria||IUCN Category|
|Wedge-tailed Shearwater Puffinus pacificus||breeding||-||8,700-28,400 breeding pairs||-||A4ii||Least Concern|
|Audubon's Shearwater Puffinus lherminieri||breeding||-||43,000-72,000 breeding pairs||-||A4ii||Least Concern|
|White-tailed Tropicbird Phaethon lepturus||breeding||-||276-972 breeding pairs||-||A4ii||Least Concern|
|Roseate Tern Sterna dougallii||breeding||-||1,100-1,300 breeding pairs||-||A4i||Least Concern|
|Sooty Tern Sterna fuscata||breeding||-||261,000-366,000 breeding pairs||-||A4i||Least Concern|
|Brown Noddy Anous stolidus||breeding||-||4,400-11,600 breeding pairs||-||A4i||Least Concern|
|Lesser Noddy Anous tenuirostris||breeding||-||136,000-197,000 breeding pairs||-||A4i||Least Concern|
|Common White Tern Gygis alba||breeding||-||3,900-5,900 breeding pairs||-||A4i||Least Concern|
|Seychelles Warbler Acrocephalus sechellensis||resident||1999||present [units unknown]||-||A1, A2||Vulnerable|
|A4iii Species group - seabirds||breeding||-||-||unknown||A4iii|
|A4iii Species group - waterbirds||breeding||-||-||unknown||A4iii|
|Protected area||Designation||Area (ha)||Relationship with IBA||Overlap with IBA (ha)|
|Aride Island||Special Reserve||70||protected area contained by site||70|
|Land-use||Extent (% of site)|
|nature conservation and research||-|
|Notes: Collection of seabird eggs.|
Other biodiversity There are eight resident reptile species, of which seven are endemic (including Mabuya wrightii and M. seychellensis at extremely high densities). Among the large invertebrate fauna, the whip scorpion Phrynicus scaber is present in good numbers. The turtles Eretmochelys imbricata (CR) and, occasionally, Chelonia mydas (EN) nest on the beach. Of the 100 vascular plants recorded on the island, Rothmannia annae is now restricted to Aride, as may be the Peponium sp. (taxonomy uncertain).
References Betts (1997, 1998), Bowler and Hunter (1999), Bullock (1989), Carty and Carty (1996), Carty and Herzig (1995), Castle and Mileto (1991a, b), Cuthbert and Denny (1995), Komdeur et al. (1997), Lidstone-Scott (1993), Lucking and Ayrton (1996), Millett et al. (1999), Ramos (1998), Warman (1979), Warman and Todd (1984).
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Recommended citation BirdLife International (2013) Important Bird Areas factsheet: Aride island. Downloaded from http://www.birdlife.org on 05/12/2013
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