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Location Chile, Región de Valparaíso
Central coordinates 80o 45.37' West  33o 46.03' South
IBA criteria A1, A2, A3, A4ii, A4iii
Area 5,465 ha
Year of IBA assessment 2010

Comité Nacional Pro Defensa de la Flora y Fauna (Affiliate)

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Juan Fernandez Petrel Pterodroma externa breeding  1987  1,000,000-2,499,999 breeding pairs  unknown  A1, A4ii  Vulnerable 
Stejneger's Petrel Pterodroma longirostris breeding  1987  100,000-499,999 breeding pairs  unknown  A1, A4ii  Vulnerable 
Masafuera Rayadito Aphrastura masafuerae resident  2006-2007  248 individuals  unknown  A1, A2, A3  Critically Endangered 
A4iii Species group - seabirds breeding  1987  1,000,000-2,499,999 breeding pairs  unknown  A4iii   

IBA Monitoring

2014 very high favourable high
Medium - based upon reliable but incomplete / partially representative data

Invasive & other problematic species, genes & diseases invasive non-native/alien species/diseases - named species happening now whole area/population (>90%) moderate to rapid deterioration very high

Forest   4700 4700 100 good (> 90%) favourable

Whole area of site (>90%) covered by appropriate conservation designation  A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species  Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity  high 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Archipiélago de Juan Fernández National Park 9,571 protected area contains site 5,465  


IUCN habitat Habitat detail Extent (% of site)
Forest   -

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Isla Alejandro Selkirk (Parque Nacional Archipiélago de Juan Fernández, Isla Alejandro Selkirk IBA). Downloaded from on 26/10/2016

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