Lowendal Islands

IBA Criteria

Year of most recent IBA criteria assessment: 2009

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Bridled Tern Onychoprion anaethetus LC breeding 1995 3,000-5,000 breeding pairs A4i
Greater Crested Tern Thalasseus bergii LC breeding 1997-2008 4,000-9,097 breeding pairs 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

IBA Monitoring

Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2008 medium not assessed not assessed
Was the whole site covered? Yes State assessed by unset
Accuracy of information good

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Energy production and mining oil and gas drilling likely in long term (beyond 4 years) majority/most of area/population (50-90%) moderate to rapid deterioration medium
Invasive and other problematic species and genes problematic native species/diseases - named species happening now some of area/population (10-49%) no or imperceptible deterioration low

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Not assessed Not assessed Not assessed not assessed
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)
Lowendal Islands Nature Reserve 179 protected area contains site 160


IUCN Habitat Habitat detail Extent (% of site)
Coastline Sea cliffs, rocky shores & rocky islets -
Shrubland -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
nature conservation and research -
energy production and mining -
For further information about the land use classification please click here.

Land ownership
Varanus Island managed by DEC as part of Lowendal Islands Nature Reserve (class C) but 30 ha leased to Apache Energy for oil and gas production.

Recommended citation
BirdLife International (2019) Important Bird Areas factsheet: Lowendal Islands. Downloaded from http://www.birdlife.org on 19/09/2019.