The site was identified as important in 2014 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.
Populations meeting IBA criteria ('trigger species'):Species | Current IUCN Red List Category | Season | Year(s) | Population estimate at site | IBA criteria met |
---|---|---|---|---|---|
Fairy Prion Pachyptila turtur | LC | breeding | 2009 | 35,500-100,997 breeding pairs | A4ii |
Pycroft's Petrel Pterodroma pycrofti | VU | breeding | 1940-2013 | 10-20 breeding pairs | A1 |
Buller's Shearwater Ardenna bulleri | VU | breeding | 1981 | 200,000-999,999 breeding pairs | A1, A4ii |
Australasian Gannet Morus serrator | LC | breeding | 1946-2013 | 2,890-4,170 breeding pairs | A4ii |
A4iii Species group - seabirds | n/a | - | - | 100,000-499,999 | A4iii |
The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2014).
Protected area (PA) | PA designation | PA area (ha) | Relationship of PA with IBA | Overlap of PA with IBA (ha) |
---|---|---|---|---|
Poor Knights Islands | Nature Reserve | 287 | protected area overlaps with site | 287 |
Poor Knights Islands | Marine Reserve | 1,922 | protected area is adjacent to site | 0 |
Habitat (IUCN level 1) | Habitat detail | Extent (% of site) |
---|---|---|
Marine Coastal/Supratidal | - | |
Shrubland | - | |
Forest | - | |
Marine Intertidal | - |
Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Poor Knights Islands. Downloaded from
http://datazone.birdlife.org/site/factsheet/poor-knights-islands-iba-new-zealand on 28/09/2023.