Cabbage Tree and Boondelbah Islands (Australia)

Cabbage Tree and Boondelbah Islands

Current view: Data table and detailed info

IBA Justification

The site was identified as important in 2017 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 List¹	Season	Year(s)	Size	IBA criteria
White-winged Petrel Pterodroma leucoptera	VU	breeding	2009-2016	543-623 individuals	A1, A4
Wedge-tailed Shearwater Ardenna pacifica	LC	breeding	2009	55,434 breeding pairs	A4

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2017) may differ.

IBA Conservation

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2017. The most recent assessment (2020) is shown below.

IBA conservation assessment
Year of assessment	State	Pressure	Response
2020	not assessed	high	high
Whole site assessed?	State assessed by	Accuracy of information
yes	unset	medium

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Natural system modifications	likely in long term (beyond 4 years)	majority/most of area/population (50-90%)	very rapid to severe deterioration	high
Invasive and other problematic species and genes	happening now	majority/most of area/population (50-90%)	slow but significant deterioration	high

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Whole area of site (>90%) covered by appropriate conservation designation	A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species	Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity	high

IBA Protection

Year	Protected Area	Designation	% overlap with IBA
1954	John Gould	Nature Reserve	59
2005	Port Stephens - Great Lakes	Marine Park	42
2005	Port Stephens - Great Lakes	Marine Park	13
2010	Boondelbah	Nature Reserve	20

Habitats

Habitat¹	Habitat detail	% of IBA
Forest	Rainforest & vine thickets	50
Shrubland	Other shrublands	40
Marine Coastal/Supratidal		10

1. IUCN Habitat classification.

Land use

Land use	% of IBA
nature conservation and research	100

Land ownership

NSW State Government - Department of Environment and Conservation.

Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Cabbage Tree and Boondelbah Islands (Australia). Downloaded from https://datazone.birdlife.org/site/factsheet/cabbage-tree-and-boondelbah-islands-iba-australia on 24/11/2024.