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Location Chile, Región del Bío - Bío
Central coordinates 73o 3.72' West  36o 44.70' South
IBA criteria A1, A4i, A4iii
Area 1,500 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
Franklin's Gull Larus pipixcan non-breeding  2010  18,000 individuals  good  A4i  Least Concern 
Elegant Tern Thalasseus elegans non-breeding  2009-2010  1,800-2,000 individuals  good  A1, A4i  Near Threatened 
A4iii Species group - waterbirds non-breeding  2010  20,000-49,999 individuals  unknown  A4iii   

IBA Monitoring

2014 high unfavourable low
Medium - based upon reliable but incomplete / partially representative data

Residential and commercial development commercial and industrial development happening now some of area/population (10-49%) very rapid to severe deterioration high
Residential and commercial development housing and urban areas happening now some of area/population (10-49%) moderate to rapid deterioration high
Transportation and service corridors roads and railroads past (and unlikely to return) and no longer limiting small area/few individuals (<10%) moderate to rapid deterioration low

Wetlands (inland)   3000 2500 84 moderate (70-90%) unfavourable

Little/none of site covered (<10%)  No management plan exists but the management planning process has begun  Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity  low 


IUCN habitat Habitat detail Extent (% of site)
Wetlands (inland)   -

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Humedal-Marisma Rocuant Andalién. Downloaded from on 21/10/2016

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