ZA089
Robben Island


IBA Criteria

Year of most recent IBA criteria assessment: 1998

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
African Penguin Spheniscus demersus EN resident - 4,000-5,000 breeding pairs A1, A4ii
African Penguin Spheniscus demersus EN non-breeding - 8,000-14,000 individuals A1, A4ii
Crowned Cormorant Microcarbo coronatus LC resident - 40-108 breeding pairs A1, A4i
Crowned Cormorant Microcarbo coronatus LC non-breeding - 300 individuals A1, A4i
Cape Cormorant Phalacrocorax capensis EN resident - 1,000-3,000 breeding pairs A1, A4i
Cape Cormorant Phalacrocorax capensis EN non-breeding - 5,000-10,000 individuals A1, A4i
Bank Cormorant Phalacrocorax neglectus EN resident - 57-106 breeding pairs A1, A4i
Bank Cormorant Phalacrocorax neglectus EN non-breeding - 180-250 individuals A1, A4i
African Oystercatcher Haematopus moquini LC resident - 20-35 breeding pairs A1, A4i
African Oystercatcher Haematopus moquini LC non-breeding - 40-90 individuals A1, A4i
Hartlaub's Gull Larus hartlaubii LC breeding - 1,000-4,309 breeding pairs A4i
Hartlaub's Gull Larus hartlaubii LC non-breeding - 5,000-10,000 individuals A4i
Greater Crested Tern Thalasseus bergii LC breeding - 2,300 breeding pairs A4i
Greater Crested Tern Thalasseus bergii LC non-breeding - 500-3,000 individuals A4i
A4iii Species group - seabirds n/a resident - 20,000-49,999 individuals A4iii

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)
2013 high very unfavourable low
Was the whole site covered? Yes State assessed by Habitat
Accuracy of information -

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Biological resource use fishing & harvesting aquatic resources - unintentional effects: large scale happening now majority/most of area/population (50-90%) moderate to rapid deterioration high
Biological resource use logging & wood harvesting - unintentional effects: subsistence/small scale likely in short term (within 4 years) some of area/population (10-49%) slow but significant deterioration medium
Climate change and severe weather storms and floods likely in short term (within 4 years) some of area/population (10-49%) slow but significant deterioration medium
Invasive and other problematic species and genes introduced genetic material happening now some of area/population (10-49%) slow but significant deterioration medium
Natural system modifications fire & fire suppression - increase in fire frequency/intensity likely in short term (within 4 years) majority/most of area/population (50-90%) moderate to rapid deterioration high
Natural system modifications other ecosystem modifications likely in short term (within 4 years) some of area/population (10-49%) slow but significant deterioration medium
Pollution industrial & military effluents - oil spills happening now majority/most of area/population (50-90%) slow but significant deterioration high
Residential and commercial development housing and urban areas happening now some of area/population (10-49%) slow but significant deterioration medium
Residential and commercial development tourism and recreation areas happening now some of area/population (10-49%) slow but significant deterioration medium
Transportation and service corridors flight paths happening now majority/most of area/population (50-90%) no or imperceptible deterioration low
Transportation and service corridors roads and railroads happening now some of area/population (10-49%) slow but significant deterioration medium

Condition of habitat (state)
Habitat Habitat Detail Reference Area (ha) Actual Area (ha) % of habitat remaining % of carrying capacity (overall) Result
Shrubland Shrubland - Cape (fynbos) 0 0 very poor (< 40%) very poor (< 40%) very unfavourable

Condition of key/trigger populations (state)
Scientific Common TargetPop ActualPop Units Remaining Result
Spheniscus demersus African Penguin 5000 1669 breeding pairs 34 very unfavourable
Microcarbo coronatus Crowned Cormorant 108 74 breeding pairs 69 unfavourable
Phalacrocorax neglectus Bank Cormorant 106 93 breeding pairs 88 near favourable
Haematopus moquini African Oystercatcher 35 250 breeding pairs 100 favourable

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Little/none of site covered (<10%) A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species Some limited conservation initiatives are in place low
For more information about IBA monitoring please click here

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Shrubland Shrubland - Cape (fynbos) -
Marine Coastal/Supratidal -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
nature conservation and research -
other -
tourism/recreation -
unknown -
For further information about the land use classification please click here.


Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Robben Island. Downloaded from http://www.birdlife.org on 15/08/2022.