Data Zone
The site was identified as internationally important for bird conservation in 2011 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.
Populations meeting IBA criteria ('trigger species') at the site:| Species | Red List | Season (year/s of estimate) | Size | IBA criteria |
|---|---|---|---|---|
| Eurasian Wigeon Mareca penelope | LC | winter (2008) | max 5,256 birds | B1i, B3, C3 |
| Eurasian Spoonbill Platalea leucorodia | LC | passage (2008) | 7–400 birds | A4i, B1i, C2 |
| Eurasian Curlew Numenius arquata | NT | winter (2008) | 155–924 birds | A1, C1 |
| Black-tailed Godwit Limosa limosa | NT | winter (2008) | max 682 birds | A1, B1i, C1, C3 |
Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2011. The most recent assessment (2007) is shown below.
| IBA conservation assessment | |||
|---|---|---|---|
| Year of assessment | State | Pressure | Response |
| 2007 | good | very high | medium |
| Whole site assessed? | State assessed by | Accuracy of information | |
| yes | population | good | |
| State (condition of the trigger species' populations) | |||||
|---|---|---|---|---|---|
| Species | Actual vs Reference (units) | % remaining | Result | ||
| Eurasian Wigeon Mareca penelope | 5,333 / 5,828 (birds) | 92 | good | ||
| Eurasian Spoonbill Platalea leucorodia | 57 / 52 (birds) | 100 | good | ||
| Eurasian Curlew Numenius arquata | 416 / 426 (birds) | 98 | good | ||
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Invasive and other problematic species and genes | happening now | whole of population/area (>90%) | rapid decline (>30% over 3 generations) | very high |
| Pollution | happening now | whole of population/area (>90%) | moderate decline (10–30% over 3 generations) | very high |
| Transportation and service corridors | happening now | most of population/area (50–90%) | moderate decline (10–30% over 3 generations) | high |
| Residential and commercial development | happening now | some of population/area (10–49%) | moderate decline (10–30% over 3 generations) | high |
| Biological resource use | happening now | few individuals/small area (<10%) | slow decline (1–10% over 3 generations) | low |
| Human intrusions and disturbance | likely in short term (<4 years) | some of population/area (10–49%) | no or slight decline (<1% over 3 generations) | low |
| Agricultural expansion and intensification | past (and unlikely to return) and no longer limiting | most of population/area (50–90%) | moderate decline (10–30% over 3 generations) | low |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Designation | Planning | Action | Result |
| Whole area (>90%) covered by appropriate conservation designation | A management plan exists, but it is out of date or not comprehensive | Substantive conservation measures are being implemented, but these are not comprehensive and are limited by resources and capacity | medium |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 1992 | Marismas de Santoña y Noja | Natural Reserve (-) | 54 |
| 2006 | Marismas de Santoña, Victoria y Joyel | Parque Natural (V) | 88 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Artificial/Terrestrial | 50 | Highly improved re-seeded landscapes; Other urban and industrial areas |
| Marine Coastal/Supratidal | - | |
| Marine Intertidal | - | |
| Marine Neritic | - |
| Land use | % of IBA |
|---|---|
| agriculture | 60 |
| forestry | 40 |
| fisheries/aquaculture | 10 |
| urban/industrial/transport | - |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Santoña marshes (Spain). Downloaded from
https://datazone.birdlife.org/site/factsheet/santoña-marshes-iba-spain on 23/12/2024.