Adele Island


IBA Justification

The site was identified as important 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 List1 Season Year(s) Size IBA criteria
Lesser Frigatebird Fregata ariel LC resident 1982 2,000-5,700 breeding pairs A4ii
Brown Booby Sula leucogaster LC resident 1972-1993 1,500-8,500 breeding pairs A4ii
Red-necked Stint Calidris ruficollis NT non-breeding 2004 4,107 individuals A4i
Grey-tailed Tattler Tringa brevipes LC non-breeding 2004 5,489 individuals A4i

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2009) may differ.


IBA Conservation

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2009. The most recent assessment (2008) is shown below.

IBA conservation assessment
Year of assessment State Pressure Response
2008 not assessed medium not assessed
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
Invasive and other problematic species and genes happening now some of area/population (10-49%) slow but significant deterioration medium

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas Management plan Other action Result
Not assessed Not assessed Not assessed not assessed

Habitats

Habitat1 Habitat detail % of IBA
Marine Coastal/Supratidal 100
1. IUCN Habitat classification.

Land use

Land use % of IBA
nature conservation and research 100

Land ownership
Western Australia State Government with management the responsibility of Dept of Environment & Conservation.


Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Adele Island (Australia). Downloaded from https://datazone.birdlife.org/site/factsheet/adele-island-iba-australia on 23/11/2024.