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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') at the site:

Species	Red List1	Season	Year(s)	Size	IBA criteria
European Storm-petrel Hydrobates pelagicus	LC	resident	2008	320-743 breeding pairs	B1ii, B3, C2, C6
Balearic Shearwater Puffinus mauretanicus	CR	breeding	2007	115 breeding pairs	A1, A4ii, B1ii, B2, C1, C2
Black-winged Stilt Himantopus himantopus	LC	breeding	2003	7-165 breeding pairs	C6
Kentish Plover Charadrius alexandrinus	LC	resident	2008	max 163 breeding pairs	B2
Audouin's Gull Larus audouinii	VU	breeding	2007	360 breeding pairs	A1, A4i, B1i, B2, C1, C2, C6
Balearic Warbler Curruca balearica	LC	resident	2008	51-100 breeding pairs	C2

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

Year	Protected Area	Designation	% overlap with IBA
1993	Salinas de Ibiza y Formentera	Ramsar Site, Wetland of International Importance	56
1995	Ses Salines de Ibiza, Formentera e Islas des Freus	Natural Reserve	51
1997	Ses Salines d'Eivissa i Formentera	Site of Community Importance (Habitats Directive)	96
1999	Ibiza, Biodiversity and Culture	World Heritage Site (natural or mixed)	89
2001	Ses Salines d Eivissa i Formentera	Parque Natural	94
2001	Ses Salines d Eivissa i Formentera	Reserva Natural	29
2006	Ses Salines d'Eivissa i Formentera	Special Protection Area (Birds Directive)	83

Habitat1	Habitat detail	% of IBA
Forest	Native coniferous woodland	35
Artificial/Terrestrial	Arable land, Other urban and industrial areas	30
Marine Neritic		30
Shrubland	Sclerophyllous scrub, garrigue and maquis	5
Marine Coastal/Supratidal		-
Marine Intertidal		-

1. IUCN Habitat classification.

Land use	% of IBA
hunting	50
urban/industrial/transport	40
tourism/recreation	15
agriculture	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Salt-pans of Ibiza and Formentera and Freus isles (Spain). Downloaded from https://datazone.birdlife.org/site/factsheet/salt-pans-of-ibiza-and-formentera-and-freus-isles-iba-spain on 23/11/2024.