NC004
Île Matthew


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
Brown Booby Sula leucogaster LC breeding (2004) 851 pairs A4ii
Blue Noddy Anous ceruleus LC breeding (2004) 260 pairs A4i
A4iii Species group - waterbirds n/a breeding (2004) 9,661 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 not assessed medium very 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
Brown Booby Sula leucogaster 851 / 851 (pairs) 100 not assessed
Procelsterna cerulea 260 / 260 (pairs) 100 not assessed
A4iii Species group - waterbirds 9,661 / 9,661 (pairs) 100 not assessed

Pressure (threats to the trigger species and/or their habitats)
Threat Timing Scope Severity Result
Geological events likely in short term (<4 years) some of popul­ation/area (10–49%) moderate decline (10–30% over 3 gener­ations) medium
Invasive and other problematic species and genes happe­ning now whole of popul­ation/area (>90%) no or slight decline (<1% over 3 gener­ations) low
Climate change and severe weather likely in long term (>4 years) whole of popul­ation/area (>90%) no or slight decline (<1% over 3 gener­ations) low
Human intrusions and disturbance likely in long term (>4 years) whole of popul­ation/area (>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
Little/none of area covered (<10%) No management planning has taken place Very little or no conservation action taking place very low

IBA Protection

Year Protected Area Designation (management category) % coverage of IBA
2014 Natural Park of the Coral Sea Parc Naturel (VI) 100


Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Île Matthew (New Caledonia (to France)). Downloaded from https://datazone.birdlife.org/site/factsheet/île-matthew-iba-new-caledonia-(to-france) on 23/12/2024.