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The site was identified as important in 2011 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species'):

Species	Current IUCN Red List Category	Season	Year(s)	Population estimate at site	IBA criteria met
Cinereous Vulture Aegypius monachus	NT	resident	2004	min 114 breeding pairs	A1, A4ii, B1iii, B2, C1, C2, C6
Spanish Imperial Eagle Aquila adalberti	VU	resident	2004	min 2 breeding pairs	A1, B2, C1, C2

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2011).

State (condition of the trigger species' populations)
Scientific name	Common name	Reference population	Actual population	Units	% of population remaining	Result
Aegypius monachus	Cinereous Vulture	90	90	breeding pairs	100	favourable

State (condition of the trigger species' habitats)
Habitat	Habitat detail	Reference area (ha)	Actual area (ha)	Habitat quantity (% remaining)	Habitat quality (carrying capacity)	Result
Forest		0	0	good (> 90%)	good (> 90%)	favourable

Pressure (threats to the trigger species and/or their habitats)
Threat level 1	Threat level 2	Timing	Scope	Severity	Result
Human intrusions and disturbance	recreational activities	happening now	majority/most of area/population (50-90%)	moderate to rapid deterioration	high
Invasive and other problematic species and genes	problematic native species/diseases - named species	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Natural system modifications	fire & fire suppression - increase in fire frequency/intensity	likely in short term (within 4 years)	whole area/population (>90%)	very rapid to severe deterioration	very high
Pollution	excess energy - noise pollution	happening now	some of area/population (10-49%)	moderate to rapid deterioration	high
Pollution	garbage & solid waste	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Residential and commercial development	tourism and recreation areas	likely in long term (beyond 4 years)	some of area/population (10-49%)	moderate to rapid deterioration	medium

Response (conservation actions taken for the trigger species and/or their habitats)
Protected-area designation	Management planning	Other conservation action	Result
Whole area of site (>90%) covered by appropriate conservation designation	A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species	The conservation measures needed for the site are being comprehensively and effectively implemented	high

For more information about IBA conservation status, please click here

Protected area (PA)	PA designation	PA area (ha)	Relationship of PA with IBA	Overlap of PA with IBA (ha)
Valle del Tiétar - ZEPA	Special Protection Area (Birds Directive)	64,341	protected area is adjacent to site	0
Valle Del Tiétar	Site of Community Importance (Habitats Directive)	63,308	protected area is adjacent to site	0
Valle de Iruelas	Reserva Natural	8,244	protected area overlaps with site	8,440
Valle de Iruelas	Special Protection Area (Birds Directive)	8,604	protected area overlaps with site	8,440
Valle De Iruelas	Site of Community Importance (Habitats Directive)	8,604	protected area overlaps with site	0
Riberas Del Río Alberche y Afluentes	Site of Community Importance (Habitats Directive)	710	protected area is adjacent to site	0
Encinares del río Alberche y río Cofio	Special Protection Area (Birds Directive)	82,999	protected area is adjacent to site	0
Cuencas de los ríos Alberche y Cofio	Site of Community Importance (Habitats Directive)	82,857	protected area is adjacent to site	0
Cerro de Guisando - ZEPA	Special Protection Area (Birds Directive)	3,680	protected area overlaps with site	0
Cerro De Guisando	Site of Community Importance (Habitats Directive)	3,458	protected area overlaps with site	0

Habitat (IUCN level 1)	Habitat detail	Extent (% of site)
Forest	Broadleaved deciduous woodland, Native coniferous woodland, Mixed woodland, Alluvial and very wet forest, Broadleaved evergreen woodland	-
Shrubland	Scrub	-
Grassland	Alpine, subalpine and boreal grassland	-
Rocky areas (eg. inland cliffs, mountain peaks)	Scree & boulders	-
Artificial/Terrestrial	Forestry plantations	-

For more information about the IUCN Habitat classification, please click here.

Land-use	Extent (% of site)
agriculture	-
forestry	-
hunting	-
tourism/recreation	-

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Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Iruelas valley. Downloaded from http://datazone.birdlife.org/site/factsheet/iruelas-valley-iba-spain on 05/10/2023.