Manowar and Rocky Islands (Australia) IBA | Details

Manowar and Rocky Islands

Current view: Data table and detailed info

IBA Justification

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
Lesser Frigatebird Fregata ariel	LC	breeding (1991)	7,700 pairs	A4ii
Brown Booby Sula leucogaster	LC	breeding (1991)	9,000–12,000 pairs	A4ii

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	high	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	most of population/area (50–90%)	slow decline (1–10% over 3 generations)	high
Human intrusions and disturbance	happening now	whole of population/area (>90%)	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

IBA Protection

Year	Protected Area	Designation (management category)	% coverage of IBA
2013	Thuwathu/Bujimulla	Indigenous Protected Area (V)	47

Habitats

Habitat	% of IBA	Habitat detail
Marine Neritic	80
Marine Coastal/Supratidal	20

Land use

Land use	% of IBA
fisheries/aquaculture	80
other	20

Land ownership

Traditional owners are Lardil people: Rocky Island known as Kalamburriya, Manowar Island known as Delmerriya or Wudma. http://www.environment.gov.au/indigenous/publications/pubs/thuwathu-bujimulla-plan.pdf. Native title exists over the islands.

Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Manowar and Rocky Islands (Australia). Downloaded from https://datazone.birdlife.org/site/factsheet/manowar-and-rocky-islands-iba-australia on 23/12/2024.