NC008
Îlots du lagon sud


IBA Justification

The site was identified as internationally important for bird conservation in 2012 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
Tahiti Petrel Pseudobulweria rostrata NT breeding (1996) 100 pairs A1, A4ii
Black Noddy Anous minutus LC breeding (1996) 50,000–100,000 pairs A4i
Fairy Tern Sternula nereis VU breeding (2004) 11 nests A1
Roseate Tern Sterna dougallii LC resident (2007) 1,500 pairs A4i
A4iii Species group - seabirds n/a breeding (2007–2012) 208,000 pairs A4iii

IBA Conservation

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2012. The most recent assessment (2012) is shown below.

IBA conservation assessment
Year of assessment State Pressure Response
2012 very poor medium low
Whole site assessed? State assessed by Accuracy of information
yes population medium

State (condition of the trigger species' populations)
Species Actual vs Reference (units) % remaining Result
Tahiti Petrel Pseudobulweria rostrata 30 / 100 (pairs) 30 very poor
Black Noddy Anous minutus 33,900 / 75,000 (pairs) 46 poor
Fairy Tern Sternula nereis 11 / 10 (nests) 100 good
Roseate Tern Sterna dougallii 5,365 / 1,500 (pairs) 100 good
A4iii Species group - seabirds 208,000 / 208,000 (pairs) 100 not assessed

Pressure (threats to the trigger species and/or their habitats)
Threat Timing Scope Severity Result
Climate change and severe weather likely in long term (>4 years) whole of popul­ation/area (>90%) slow decline (1–10% over 3 gener­ations) medium
Human intrusions and disturbance happe­ning now some of popul­ation/area (10–49%) no or slight decline (<1% over 3 gener­ations) low
Biological resource use happe­ning now some of popul­ation/area (10–49%) no or slight decline (<1% over 3 gener­ations) low
Pollution happe­ning now few indivi­duals/small area (<10%) no or slight decline (<1% over 3 gener­ations) low
Invasive and other problematic species and genes likely in short term (<4 years) most of popul­ation/area (50–90%) 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
Some of area covered (10–49%) A management plan exists, but it is out of date or not compre­hensive Substantive conservation measures are being implemented, but these are not compre­hensive and are limited by resources and capacity low

IBA Protection

Year Protected Area Designation (management category) % coverage of IBA
2008 Lagoons of New Caledonia: Reef Diversity and Associated Ecosystems World Heritage Site (natural or mixed) (UA) 80


Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Îlots du lagon sud (New Caledonia (to France)). Downloaded from https://datazone.birdlife.org/site/factsheet/îlots-du-lagon-sud-iba-new-caledonia-(to-france) on 23/12/2024.