NZ018
Mahuki Island


IBA Justification

The site was identified as internationally important for bird conservation in 2014 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
Australasian Gannet Morus serrator LC breeding (1946–1980) 1,625–2,681 pairs A4ii

IBA Conservation

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2014. The most recent assessment (2014) is shown below.

IBA conservation assessment
Year of assessment State Pressure Response
2014 not assessed medium not assessed
Whole site assessed? State assessed by Accuracy of information
no unset -

Pressure (threats to the trigger species and/or their habitats)
Threat Timing Scope Severity Result
Invasive and other problematic species and genes happe­ning now some of popul­ation/area (10–49%) slow decline (1–10% over 3 gener­ations) medium
Human intrusions and disturbance likely in short term (<4 years) few indivi­duals/small area (<10%) 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
Not assessed Not assessed Not assessed not assessed

Habitats

Habitat % of IBA Habitat detail
Forest major (>10)
Introduced vegetation major (>10)
Marine Coastal/Supratidal major (>10)
Marine Intertidal major (>10)
Shrubland major (>10)


Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Mahuki Island (New Zealand). Downloaded from https://datazone.birdlife.org/site/factsheet/mahuki-island-iba-new-zealand on 24/12/2024.