PT033
Ria Formosa (Faro lagoon)


IBA Criteria

Year of most recent IBA criteria assessment: 2002

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Eurasian Wigeon Mareca penelope LC winter 2001 4,700-7,850 individuals A4i, B1i, C3
Greater Flamingo Phoenicopterus roseus LC winter 2000 100-350 individuals A4i, B1i, C2, C6
Purple Swamphen Porphyrio porphyrio LC resident 2002 21-24 breeding pairs C6
White Stork Ciconia ciconia LC resident 2002 50 breeding pairs C6
Eurasian Spoonbill Platalea leucorodia LC winter 1996 150-350 individuals A4i, B1i, B2, C2, C6
Eurasian Spoonbill Platalea leucorodia LC breeding 1996 5-11 breeding pairs C6
Common Little Bittern Ixobrychus minutus LC breeding 1996 frequent C6
Pied Avocet Recurvirostra avosetta LC winter 1996 650-750 individuals A4i, B1i, B2, C2, C6
Pied Avocet Recurvirostra avosetta LC resident 2002 218-247 breeding pairs C6
Black-winged Stilt Himantopus himantopus LC resident 1996 350-400 breeding pairs C6
Black-winged Stilt Himantopus himantopus LC winter 1996 350-400 individuals C6
Grey Plover Pluvialis squatarola LC winter 1996 1,700-3,000 individuals A4i, B1i, C3
Common Ringed Plover Charadrius hiaticula LC winter 1996 2,000-4,500 individuals A4i, B1i, C3
Kentish Plover Charadrius alexandrinus LC winter 1996 2,000-4,000 individuals A4i, B1i, C3
Kentish Plover Charadrius alexandrinus LC resident 1996 800-1,200 breeding pairs A4i, B1i, B2, C3
Bar-tailed Godwit Limosa lapponica NT winter 1996 1,900-4,200 individuals A4i, B1i, B2, C3
Ruddy Turnstone Arenaria interpres LC winter 1996 500-1,000 individuals A4i, B1i, C3
Ruddy Turnstone Arenaria interpres LC passage 1996 700-1,200 individuals A4i, B1i, C3
Dunlin Calidris alpina LC winter 1996 12,000-22,500 individuals A4i, B1i, B2, C3
Collared Pratincole Glareola pratincola LC breeding 1996 25-45 breeding pairs B2, C6
Little Tern Sternula albifrons LC breeding 1996 200-300 breeding pairs C6
A4iii Species group - waterbirds n/a winter 1996 20,000 individuals A4iii, C4

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here


IBA Monitoring

Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2005 low not assessed not assessed
Was the whole site covered? No State assessed by unset
Accuracy of information good

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Transportation and service corridors utility & service lines happening now small area/few individuals (<10%) very rapid to severe deterioration low

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Not assessed Not assessed Not assessed not assessed
For more information about IBA monitoring please click here

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Ria Formosa / Castro Marim Site of Community Importance (Habitats Directive) 17,519 protected area overlaps with site 13,427
Ria Formosa Special Protection Area (Birds Directive) 23,269 protected area overlaps with site 23,296
Ria Formosa Ramsar Site, Wetland of International Importance 16,000 protected area overlaps with site 16,000
Ria Formosa Parque Natural 17,901 protected area overlaps with site 17,664

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Forest Native coniferous woodland -
Shrubland Sclerophyllous scrub, garrigue and maquis -
Wetlands (inland) Standing freshwater, Standing brackish and salt water, Rivers and streams, Water fringe vegetation -
Artificial/Terrestrial Arable land, Perennial crops, orchards and groves, Forestry plantations, Other urban and industrial areas -
Introduced vegetation -
Coastline Tidal rivers & enclosed tidal waters, Sand dunes & beaches, Salt marshes, Mud flats & sand flats, Lagoons -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
agriculture -
fisheries/aquaculture -
forestry -
military -
nature conservation and research -
tourism/recreation -
urban/industrial/transport -
For further information about the land use classification please click here.


Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Ria Formosa (Faro lagoon). Downloaded from http://www.birdlife.org on 26/09/2022.