ES035
Urdaibai - Matxitxako


IBA Justification

The site was identified as internationally important for bird conservation 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 List Season (year/s of estimate) Size IBA criteria
European Storm-petrel Hydrobates pelagicus LC resident (2007) 500–1,796 pairs C6
Eurasian Spoonbill Platalea leucorodia LC passage (2009) min 500 birds A4i, B1i, C2
European Shag Gulosus aristotelis LC resident (2007) 112 pairs B3
Eurasian Curlew Numenius arquata NT winter (2010) 79–278 birds A1, C1
Peregrine Falcon Falco peregrinus LC resident (2008) min 17 pairs C6

IBA Conservation

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.

IBA conservation assessment
Year of assessment State Pressure Response
2008 very poor very high medium
Whole site assessed? State assessed by Accuracy of information
yes habitat medium

State (condition of the trigger species' habitats)
Habitat Quantity (% remaining) Quality (% carrying capacity) Result
Marine Neritic moderate (70–90%) poor (40–69%) very poor

Pressure (threats to the trigger species and/or their habitats)
Threat Timing Scope Severity Result
Human intrusions and disturbance happe­ning now whole of popul­ation/area (>90%) rapid decline (>30% over 3 gener­ations) very high
Biological resource use happe­ning now whole of popul­ation/area (>90%) moderate decline (10–30% over 3 gener­ations) very high
Pollution happe­ning now whole of popul­ation/area (>90%) moderate decline (10–30% over 3 gener­ations) very high
Invasive and other problematic species and genes happe­ning now most of popul­ation/area (50–90%) rapid decline (>30% over 3 gener­ations) very high
Residential and commercial development happe­ning now most of popul­ation/area (50–90%) moderate decline (10–30% over 3 gener­ations) high
Transportation and service corridors happe­ning now some of popul­ation/area (10–49%) moderate decline (10–30% over 3 gener­ations) high
Natural system modifications happe­ning now some of popul­ation/area (10–49%) moderate decline (10–30% over 3 gener­ations) high
Agricultural expansion and intensification likely in long term (>4 years) some of popul­ation/area (10–49%) no or slight decline (<1% over 3 gener­ations) low

Response (conservation actions taken for the trigger species and/or their habitats)
Designation Planning Action Result
Whole area (>90%) covered by appropriate conservation designation A management plan exists, but it is out of date or not compre­hensive Some limited conservation initiatives are in place medium

IBA Protection

Year Protected Area Designation (management category) % coverage of IBA
1984 Urdaibai UNESCO-MAB Biosphere Reserve (UA) 100
1989 Urdaibai Reserva de la Biosfera (VI) 12
1998 Gaztelugatxe Biotopo Protegido (III) 1
2014 Espacio marino de la Ria de Mundaka-Cabo de Ogoño Marine Protected Area (OSPAR) (UA) 71

Habitats

Habitat % of IBA Habitat detail
Marine Neritic 100

Land use

Land use % of IBA
nature conservation and research 90
fisheries/aquaculture 25
agriculture 10


Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Urdaibai - Matxitxako (Spain). Downloaded from https://datazone.birdlife.org/site/factsheet/urdaibai--matxitxako-iba-spain on 24/12/2024.