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Location Cape Verde
Central coordinates 24o 21.63' West  16o 37.92' North
IBA criteria A4i
Area 208,852 ha
Year of IBA assessment 2012

Site description This Marine IBA is identified using seaward extensions around breeding colonies. It originates from the Cape Verde Exclusive Economic Zone (EEZ) and falls within the Atlantic, Eastern Central FAO ocean region. The site covers an area of 2089 km2 and borders the coastline. The depth ranges from 0 to 3024 m, with a mean annual wind speed of 1.78 m/s, mean annual sea surface temperature falls between 23.9 and 24.4 °C and mean annual chlorophyll-a concentrations found to range between 0.24 and 0.41 mg/m3.

Key Biodiversity 2 species trigger IBA criteria at this Marine IBA. Seaward extensions around breeding colonies; Central mountain range of Ilha de São Nicolau, Ilhéu Raso include key near-colony areas for breeding populations of Red-billed Tropicbird (LC) 75-120 individuals and Fea's Petrel (NT) 90-90 individuals.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Pterodroma feae breeding  90 individuals  A4i  Not Recognised 
Red-billed Tropicbird Phaethon aethereus breeding  75-120 individuals  A4i  Least Concern 


IUCN habitat Habitat detail Extent (% of site)
Sea   100%

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Central mountain range of Ilha de São Nicolau - Marine. Downloaded from on 23/10/2016

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