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The site was identified as internationally important for bird conservation in 2009 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
Short-tailed Shearwater Ardenna tenuirostris	LC	resident (1978–1995)	1,430,551 nests	A4ii
Pacific Gull Larus pacificus	LC	resident (-)	456 pairs	A4i

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2009. The most recent assessment (2020) is shown below.

State (condition of the trigger species' habitats)
Habitat	Quantity (% remaining)	Quality (% carrying capacity)	Result
Shrubland	very poor (<40%)	very poor (<40%)	very poor

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Pollution	likely in short term (<4 years)	whole of popul­ation/area (>90%)	slow decline (1–10% over 3 gener­ations)	high
Human intrusions and disturbance	likely in short term (<4 years)	most of popul­ation/area (50–90%)	moderate decline (10–30% over 3 gener­ations)	high
Climate change and severe weather	likely in short term (<4 years)	most of popul­ation/area (50–90%)	moderate decline (10–30% over 3 gener­ations)	high
Invasive and other problematic species and genes	happe­ning now	few indivi­duals/small area (<10%)	no or slight decline (<1% over 3 gener­ations)	low
Biological resource use	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
Whole area (>90%) covered by appropriate conservation designation	A management plan exists, but it is out of date or not compre­hensive	Very little or no conservation action taking place	low

Year	Protected Area	Designation (management category)	% coverage of IBA
1991	Seal Islands W.R.	Nature Conservation Reserve (Ia)	2
1992	Wilsons Promontory Islands	Remote and Natural Area - Schedule 6, National Parks Act (II)	68
1992	Seal Islands R.N.A	Remote and Natural Area - not scheduled under NPA (Ia)	5
1995	Wilsons Promontory National Park	National Park (II)	69
1996	Anser Island	Reference Area (Ia)	12
1999	Rodondo Island	Nature Reserve (Ia)	12
1999	West Moncoeur Island	Nature Reserve (Ia)	2
2011	East Moncoeur Island	Conservation Area (V)	2

Habitat	% of IBA	Habitat detail
Marine Coastal/Supratidal	10
Grassland	major (>10)	Tussock grasslands
Shrubland	minor (<10)	Other shrublands

Land use	% of IBA
nature conservation and research	major (>10)
tourism/recreation	minor (<10)
not utilised	minor (<10)
urban/industrial/transport	minor (<10)

Victorian State Government, with management the responsibility of Parks Victoria; Parks and Wildlife Service Tasmania; Tasmanian Department of Primary Industries and Water.

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Wilsons Promontory Islands (Australia). Downloaded from https://datazone.birdlife.org/site/factsheet/wilsons-promontory-islands-iba-australia on 23/12/2024.