ES077
Ayllón mountain range


IBA Criteria

Year of most recent IBA criteria assessment: 2011

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Golden Eagle Aquila chrysaetos LC resident 2008 min 22 breeding pairs B2, C2, C6
Bonelli's Eagle Aquila fasciata LC resident 2010 3 breeding pairs C2, C6
Peregrine Falcon Falco peregrinus LC resident 2010 min 18 breeding pairs C6

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 very high unfavourable negligible
Was the whole site covered? Yes State assessed by Habitat
Accuracy of information medium

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Biological resource use hunting & collecting terrestrial animals - intentional use (species being assessed is the target) happening now whole area/population (>90%) moderate to rapid deterioration very high
Energy production and mining mining and quarrying happening now small area/few individuals (<10%) very rapid to severe deterioration low
Energy production and mining renewable energy happening now some of area/population (10-49%) moderate to rapid deterioration high
Natural system modifications dams & water management/use - abstraction of surface water (agricultural use) likely in short term (within 4 years) some of area/population (10-49%) moderate to rapid deterioration medium
Transportation and service corridors roads and railroads likely in long term (beyond 4 years) some of area/population (10-49%) moderate to rapid deterioration medium
Transportation and service corridors utility & service lines likely in long term (beyond 4 years) some of area/population (10-49%) moderate to rapid deterioration medium

Condition of habitat (state)
Habitat Habitat Detail Reference Area (ha) Actual Area (ha) % of habitat remaining % of carrying capacity (overall) Result
Forest Broadleaved deciduous woodland 0 0 moderate (70-90%) moderate (70-90%) unfavourable
Shrubland Scrub 0 0 good (> 90%) good (> 90%) near favourable

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Little/none of site covered (<10%) No management planning has taken place Very little or no conservation action taking place negligible
For more information about IBA monitoring please click here

IBA Protection

Protection status:

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
ZEPA Sierra de Ayllón Special Protection Area (Birds Directive) 94,686 protected area contained by site 0
Sonsaz National Game Reserve 68,106 protected area contained by site 68,106
Sierra Norte de Guadalajara Parque Natural 117,898 protected area contained by site 0
Sierra del Rincón UNESCO-MAB Biosphere Reserve 15,231 protected area overlaps with site 0
Sierra de Pela Site of Community Importance (Habitats Directive) 11,972 protected area overlaps with site 1,054
Sierra de Ayllón Site of Community Importance (Habitats Directive) 91,357 protected area contained by site 91,357
Sierra De Ayllón Site of Community Importance (Habitats Directive) 14,349 protected area overlaps with site 7,349
Riofrío de Riaza Nature Area of National Interest 87 protected area contained by site 87
Río Pelagallinas Reserva Fluvial 362 protected area contained by site 0
Riberas del Henares Site of Community Importance (Habitats Directive) 1,250 protected area is adjacent to site 0
Hayedo de Tejera Negra Nature Park 1,641 protected area contained by site 1,641
Hayedo de Montejo de la Sierra Nature Area of National Interest 250 protected area contained by site 250
Hayedo de Montejo de la Sierra Sitio Natural de Interés Nacional 250 protected area contained by site 0
Cuencas de los ríos Jarama y Henares Site of Community Importance (Habitats Directive) 36,063 protected area is adjacent to site 0
Cuenca del río Lozoya y Sierra Norte Site of Community Importance (Habitats Directive) 50,231 protected area overlaps with site 16,576
Cerros volcánicos de Cañamares Site of Community Importance (Habitats Directive) 707 protected area is adjacent to site 0

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Forest Broadleaved deciduous woodland -
Shrubland Scrub -
Grassland Dry siliceous grassland, Humid grasslands -
Rocky areas (eg. inland cliffs, mountain peaks) Inland cliffs -
Artificial/Terrestrial Arable land, Forestry plantations -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
agriculture -
forestry -
hunting -
For further information about the land use classification please click here.


Recommended citation
BirdLife International (2020) Important Bird Areas factsheet: Ayllón mountain range. Downloaded from http://www.birdlife.org on 07/08/2020.