Marais de Brière (2383)
France, Europe
Site overview
KBA status: confirmed
Year of last assessment: 2000
National site name: Marais de Brière
Central coordinates: Latitude: 47.3667, Longitude: -2.1667
System: marine, terrestrial
Elevation (m): 0 to 10
Area of KBA (km2): 172.1473
Protected area coverage (%): 98.57
KBA classification: Regional
Legacy site: Yes
Site details
Site description: Marshes and wet meadows, reedbeds (Phragmites), ponds and arable fields.
Rationale for qualifying as KBA: This site qualifies as a Key Biodiversity Area of international significance that was identified using previously established criteria and thresholds for the identification of Important Bird and Biodiversity Areas (IBAs) and for which available data indicate that it does not meet global KBA criteria and thresholds set out in the Global Standard.
Additional biodiversity: This is an important site for breeding and wintering waterbirds. It is also the best site for Chlidonias niger in France. Species of global conservation concern that do not meet IBA criteria: Haliaeetus albicilla (passage); Aquila clanga (passage); Crex crex (passage); Gallinago media (passage); Acrocephalus paludicola (passage).
Habitats
Land use: agriculture | fisheries/aquaculture | hunting | tourism/recreation | urban/industrial/transport
| IUCN Habitat | Coverage % | Habitat detail |
|---|---|---|
| Marine Coastal/Supratidal | 67 | |
| Grassland | 33 |
Threats
Summary of threats to biodiversity at KBA: The Grande Brière is insufficiently flooded during summer (due to changes to the Loire estuary, see site 023) and the resulting high salinity is having a serious effect on the vegetation at the site. There is also considerable hunting pressure. Drainage and infilling of the surrounding areas are also reported threats.
| Threat level 1 | Threat level 2 | Threat level 3 | Timing |
|---|---|---|---|
| Biological resource use | Hunting & collecting terrestrial animals | Unintentional effects (species being assessed is not the target) | Ongoing |