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

Year of most recent IBA criteria assessment: 2008

Populations of IBA trigger species

Species	Current IUCN Red List Category	Season	Year(s) of estimate	Population estimate	IBA Criteria Triggered
Brown Booby Sula leucogaster	LC	breeding	1995	30,500 individuals	A4ii
Laughing Gull Larus atricilla	LC	breeding	1995	5,000 individuals	A4i
Heermann's Gull Larus heermanni	NT	winter	1995	present	A1, A4i
Bridled Tern Onychoprion anaethetus	LC	non-breeding	1995	300 individuals	A4i

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

Protection status:

Protected Area	Designation	Area (ha)	Relationship with IBA	Overlap with IBA (ha)
Islas Marietas	UNESCO-MAB Biosphere Reserve	1,383	protected area contained by site	0
Islas Marietas	Ramsar Site, Wetland of International Importance	1,357	protected area contained by site	1,357
Islas Marietas	Parque Nacional	1,383	protected area contained by site	0
Islas Marietas	Parque Nacional	1,383	protected area contained by site	0
Islands and Protected Areas of the Gulf of California	World Heritage Site (natural or mixed)	1,899,035	protected area overlaps with site	0

IUCN Habitat	Habitat detail	Extent (% of site)
Sea	Open sea	-
Forest	Tropical semi-deciduous	-

For further information about the habitat classification please click here.

Tenencia de la tierra: Federal.

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Recommended citation
BirdLife International (2020) Important Bird Areas factsheet: Islas Marietas. Downloaded from http://www.birdlife.org on 05/07/2020.