ES373
Rasca lava fields-Guaza mountain-Las Mesas plain


IBA Criteria

Year of most recent IBA criteria assessment: 2011

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Barbary Partridge Alectoris barbara LC resident 2009 15-30 breeding pairs B2, C2
Cory's Shearwater Calonectris borealis LC breeding 2007 max 300 breeding pairs B2

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


IBA Monitoring

Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2008 high favourable low
Was the whole site covered? Yes State assessed by Population
Accuracy of information good

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Agricultural expansion and intensification livestock farming and ranching (includes forest grazing) - small-holder grazing, ranching or farming happening now some of area/population (10-49%) slow but significant deterioration medium
Agricultural expansion and intensification marine and freshwater aquaculture - subsistence/artisinal aquaculture happening now small area/few individuals (<10%) slow but significant deterioration low
Biological resource use fishing & harvesting aquatic resources - unintentional effects: subsistence/small scale happening now some of area/population (10-49%) moderate to rapid deterioration high
Climate change and severe weather drought likely in short term (within 4 years) whole area/population (>90%) slow but significant deterioration high
Climate change and severe weather habitat shifting and alteration likely in long term (beyond 4 years) some of area/population (10-49%) slow but significant deterioration medium
Energy production and mining mining and quarrying happening now small area/few individuals (<10%) slow but significant deterioration low
Human intrusions and disturbance recreational activities happening now small area/few individuals (<10%) slow but significant deterioration low
Invasive and other problematic species and genes invasive non-native/alien species/diseases - named species 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
Pollution excess energy - light pollution happening now some of area/population (10-49%) moderate to rapid deterioration high
Pollution garbage & solid waste happening now small area/few individuals (<10%) slow but significant deterioration low
Residential and commercial development housing and urban areas happening now some of area/population (10-49%) moderate to rapid deterioration high
Residential and commercial development tourism and recreation areas happening now some of area/population (10-49%) moderate to rapid deterioration high
Transportation and service corridors roads and railroads happening now some of area/population (10-49%) moderate to rapid deterioration high

Condition of key/trigger populations (state)
Scientific Common TargetPop ActualPop Units Remaining Result
Alectoris barbara Barbary Partridge 6 6 breeding pairs 100 favourable
Apus unicolor Plain Swift 50 50 breeding pairs 100 favourable
Calonectris diomedea 60 60 breeding pairs 100 favourable
Burhinus oedicnemus 10 10 breeding pairs 100 favourable
Falco tinnunculus Common Kestrel 10 10 breeding pairs 100 favourable
Lanius excubitor 13 13 breeding pairs 100 favourable
Sylvia conspicillata Spectacled Warbler 30 30 breeding pairs 100 favourable
Anthus berthelotii Berthelot's Pipit 50 50 breeding pairs 100 favourable
Bucanetes githagineus Trumpeter Finch 30 30 breeding pairs 100 favourable

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Most of site (50-90%) covered (including the most critical parts for important bird species) A management plan exists but it is out of date or not comprehensive Some limited conservation initiatives are in place low
For more information about IBA monitoring please click here

IBA Protection

Protection status:

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Rasca y Guaza Special Protection Area (Birds Directive) 1,030 protected area contained by site 993
Montaña de Guaza Monumento Natural 718 protected area contained by site 0
Montaña de Guaza Natural Monument 726 protected area contained by site 726
Malpaís de La Rasca Reserva Natural Especial 313 protected area contained by site 0
Malpaís de la Rasca Special Nature Reserve 315 protected area contained by site 315
Malpaís de la Rasca Site of Community Importance (Habitats Directive) 313 protected area contained by site 305
Franja marina Teno-Rasca Site of Community Importance (Habitats Directive) 69,490 protected area is adjacent to site 0

Local conservation groups

The local conservation groups below are working to support conservation at this IBA.

Name Year formed
Ayuntamiento de Arona 0
Centro de Recuperación de Fauna Silvestre (Cabildo) 0
Oficina Voluntariado Ambiental (Cabildo) 0
For more information on BirdLife's work with Local conservation groups please click here.

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Shrubland -
Grassland Steppes and dry calcareous grassland -
Desert Semidesert -
Rocky areas (eg. inland cliffs, mountain peaks) Inland cliffs -
Coastline Shingle & stony beaches, Sea cliffs and rocky shores -
Artificial/Terrestrial Arable land -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
agriculture -
tourism/recreation -
For further information about the land use classification please click here.


Recommended citation
BirdLife International (2021) Important Bird Areas factsheet: Rasca lava fields-Guaza mountain-Las Mesas plain. Downloaded from http://www.birdlife.org on 11/04/2021.