• Summary
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• Data table and detailed info
• Map
• Reference and further resources

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') at the site:

Species	Red List1	Season	Year(s)	Size	IBA criteria
Common Crane Grus grus	LC	winter	2007	min 11,176 individuals	A4i, B1i, C2
Black Stork Ciconia nigra	LC	non-breeding	1996	41-100 individuals	B1i, C2, C6
Black Stork Ciconia nigra	LC	breeding	2009	7 breeding pairs	B1i, C2, C6
Great Cormorant Phalacrocorax carbo	LC	resident	2003	110-222 breeding pairs	B1i, C3
Cinereous Vulture Aegypius monachus	NT	resident	2003	1-10 breeding pairs	A1, C1, C2
Spanish Imperial Eagle Aquila adalberti	VU	resident	2009	4-5 breeding pairs	A1, B2, C1, C2, C6
Red Kite Milvus milvus	LC	resident	2003	13-130 breeding pairs	A1, B2, C1, C2
European Roller Coracias garrulus	LC	breeding	2003	11-110 breeding pairs	A1, B2, C1, C2
Dartford Warbler Curruca undata	NT	resident	2003	121-1,210 breeding pairs	A1, C1

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2011) may differ.

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2011. The most recent assessment (2008) is shown below.

State (condition of the trigger species' populations)
Species	Reference	Actual	Units	% remaining	Result
Common Crane Grus grus	5,244	10,000	individuals	100	favourable

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Natural system modifications	happening now	whole area/population (>90%)	very rapid to severe deterioration	very high
Climate change and severe weather	happening now	whole area/population (>90%)	very rapid to severe deterioration	very high
Human intrusions and disturbance	happening now	majority/most of area/population (50-90%)	moderate to rapid deterioration	high
Pollution	happening now	some of area/population (10-49%)	moderate to rapid deterioration	high
Agricultural expansion and intensification	happening now	small area/few individuals (<10%)	slow but significant deterioration	low
Transportation and service corridors	happening now	small area/few individuals (<10%)	slow but significant deterioration	low

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Little/none of site covered (<10%)	No management planning has taken place	Some limited conservation initiatives are in place	negligible

Year	Protected Area	Designation	% overlap with IBA
1990	Valle del Tiétar y embalses de Rosarito y Navalcán	Special Protection Area (Birds Directive)	54
1997	Sierra de San Vicente y valles del Tiétar y Alberche	Site of Community Importance (Habitats Directive)	65
2002	Sotos del Río Guadyerbas y Arenales del Baldío de Velada	Reserva Fluvial	2

Habitat1	Habitat detail	% of IBA
Forest	Broadleaved evergreen woodland	70
Wetlands (inland)	Standing freshwater	26
Artificial/Terrestrial	Arable land, Perennial crops, orchards and groves	-
Grassland		-
Shrubland	Sclerophyllous scrub, garrigue and maquis	-

1. IUCN Habitat classification.

Land use	% of IBA
agriculture	75
hunting	26
water management	26

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Rosarito and Navalcán reservoirs-La Iglesuela (Tietar valley) (Spain). Downloaded from https://datazone.birdlife.org/site/factsheet/rosarito-and-navalcán-reservoirs-la-iglesuela-(tietar-valley)-iba-spain on 22/11/2024.