BR032
Baixada Maranhense


IBA Criteria

Year of most recent IBA criteria assessment: 2021

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Red Knot Calidris canutus NT non-breeding 2011 7,000 individuals B1a, B3a
Red Knot Calidris canutus NT non-breeding 2018-2020 620 individuals B1a, B3a
Semipalmated Sandpiper Calidris pusilla NT non-breeding 2011 35,000 individuals A4, B1a, B3a
A4iii Species group - waterbirds n/a non-breeding 2011-2018 42,620 individuals B3b

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)
2008 medium not assessed not assessed
Was the whole site covered? No State assessed by unset
Accuracy of information -

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Agricultural expansion and intensification livestock farming and ranching (includes forest grazing) - small-holder grazing, ranching or farming happening now some of area/population (10-49%) slow but significant deterioration medium
Biological resource use hunting & collecting terrestrial animals - intentional use (species being assessed is the target) happening now some of area/population (10-49%) slow but significant deterioration medium

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)
Upaon-Açu/Miritiba/Alto Preguiças State Environmental Protection Area 1,535,510 protected area overlaps with site 125,493
Rio Pindaré Terra Indígena 15,002 protected area overlaps with site 0
Reserva Extrativista Quilombo Do Frechal Reserva Extrativista 9,338 protected area contained by site 0
Reentrancias Maranhenses Ramsar Site, Wetland of International Importance 2,680,911 protected area is adjacent to site 0
Parque Estadual Do Bacanga Parque 2,623 protected area overlaps with site 0
Frexal Extractive Reserve 9,542 protected area contained by site 8,779
Baixada Maranhense Subárea Baixo Mearim State Environmental Protection Area 374,619 protected area contained by site 1,775,035
Baixada Maranhense Environmental Protection Area Ramsar Site, Wetland of International Importance 1,775,036 protected area contained by site 1,775,036
Área De Proteção Ambiental Das Reentrâncias Maranhenses Área de Proteção Ambiental 2,628,504 protected area overlaps with site 0
Área De Proteção Ambiental Da Região Do Maracanã Área de Proteção Ambiental 2,190 protected area is adjacent to site 0
Área De Proteção Ambiental Da Baixada Maranhense Área de Proteção Ambiental 1,728,487 protected area overlaps with site 0
Amazon Estuary and its Mangroves Ramsar Site, Wetland of International Importance 3,830,430 protected area overlaps with site 0

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Coastline Intertidal mud, sand & salt flats, Salt & brackish marshes -
Forest Gallery (or Riparian) forest -
Wetlands (inland) Freshwater lakes and pools, Freshwater marshes/swamps, Intertidal mud, sand or salt flats, Riverine floodplains, Salt/brackish marshes -
For further information about the habitat classification please click here.


Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Baixada Maranhense. Downloaded from http://www.birdlife.org on 11/08/2022.