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Location Spain, Cantabria,Castilla y León
Central coordinates 3o 57.00' West  43o 0.00' North
IBA criteria A4i, B1i, B2, C3
Area 11,600 ha
Altitude 900 - 920m
Year of IBA assessment 2000

SEO/BirdLife



Site description A wide, generally shallow reservoir with surrounding wet grassland and bogs. Human activities include livestock-farming and arable agriculture.

Key Biodiversity This is a very important site for resident and passage waterbirds. Species of global conservation concern that do not meet IBA criteria: Tetrax tetrax (38-63 non-breeding individuals).

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Gadwall Mareca strepera resident  1995  100-120 breeding pairs  good  B2  Least Concern 
Red-crested Pochard Netta rufina non-breeding  1994  3,000-5,000 individuals  good  A4i, B1i, C3  Least Concern 

IBA Monitoring

2007 very high unfavourable negligible
Population
Medium - based upon reliable but incomplete / partially representative data

Agricultural expansion and intensification livestock farming and ranching (includes forest grazing) - agro-industry grazing, ranching or farmin happening now majority/most of area/population (50-90%) slow but significant deterioration high
Human intrusions and disturbance recreational activities happening now some of area/population (10-49%) no or imperceptible deterioration low
Natural system modifications dams & water management/use - abstraction of surface water (agricultural use) happening now whole area/population (>90%) moderate to rapid deterioration very high
Residential and commercial development housing and urban areas likely in long term (beyond 4 years) some of area/population (10-49%) slow but significant deterioration medium
Residential and commercial development tourism and recreation areas happening now some of area/population (10-49%) slow but significant deterioration medium
Transportation and service corridors roads and railroads happening now some of area/population (10-49%) slow but significant deterioration medium
Transportation and service corridors utility & service lines happening now some of area/population (10-49%) slow but significant deterioration medium

Wetlands (inland) Raised bogs  0 0 moderate (70-90%) moderate (70-90%) unfavourable
Wetlands (inland) Standing freshwater  0 0 moderate (70-90%) moderate (70-90%) unfavourable

Mareca strepera Gadwall 110 50 breeding pairs 46 unfavourable

Some of site covered (10-49%)  No management planning has taken place  Not assessed  negligible 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
EMBALSE DEL EBRO - ES0000191 Birds Directive 5,964 protected area contained by site 5,964  
Embalse del Ebro - ES0000252 Birds Directive 6,711 protected area contained by site 6,711  
EMBALSE DEL EBRO - ES4120090 Habitats Directive 7,306 protected area overlaps with site 4,744  
Rio y Embalse del Ebro - ES1300013 Habitats Directive 7,685 protected area overlaps with site 3,239  

Habitats

IUCN habitat Habitat detail Extent (% of site)
Shrubland Heathland  10%
Grassland Humid grasslands  10%
Wetlands (inland) Raised bogs; Standing freshwater  80%

Land use

Land-use Extent (% of site)
fisheries/aquaculture 70%
tourism/recreation 15%
urban/industrial/transport 10%
agriculture 25%
water management 80%

Protection status National None International None

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: River Ebro dam. Downloaded from http://www.birdlife.org on 25/12/2014

To provide new information to update this factsheet or to correct any errors, please email BirdLife