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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
Swift Parrot Lathamus discolor	CR	non-breeding (2009)	900 birds	A1, A3

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2009. The most recent assessment (2021) is shown below.

State (condition of the trigger species' habitats)
Habitat	Quantity (% remaining)	Quality (% carrying capacity)	Result
Forest	poor (40–69%)	poor (40–69%)	very poor

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Biological resource use	happe­ning now	most of popul­ation/area (50–90%)	rapid decline (>30% over 3 gener­ations)	very high
Natural system modifications	happe­ning now	most of popul­ation/area (50–90%)	rapid decline (>30% over 3 gener­ations)	very high
Invasive and other problematic species and genes	happe­ning now	most of popul­ation/area (50–90%)	slow decline (1–10% over 3 gener­ations)	high
Climate change and severe weather	likely in short term (<4 years)	most of popul­ation/area (50–90%)	slow decline (1–10% over 3 gener­ations)	medium
Human intrusions and disturbance	happe­ning now	most of popul­ation/area (50–90%)	no or slight decline (<1% over 3 gener­ations)	low
Residential and commercial development	happe­ning now	few indivi­duals/small area (<10%)	moderate decline (10–30% over 3 gener­ations)	low
Energy production and mining	happe­ning now	few indivi­duals/small area (<10%)	no or slight decline (<1% over 3 gener­ations)	low
Pollution	happe­ning now	few indivi­duals/small area (<10%)	no or slight decline (<1% over 3 gener­ations)	low
Transportation and service corridors	likely in short term (<4 years)	few indivi­duals/small area (<10%)	slow decline (1–10% over 3 gener­ations)	low
Agricultural expansion and intensification	likely in long 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
Some of area covered (10–49%)	A compre­hensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species	Some limited conservation initiatives are in place	low

Year	Protected Area	Designation (management category)	% coverage of IBA
1964	Illawong	Nature Reserve (IV)	<1
1983	Bermaguee	Nature Reserve (Ia)	<1
1988	Nethercote Falls	Flora Reserve (Ia)	<1
1999	Biamanga	National Park (II)	2
2001	Gulaga	National Park (II)	2
2001	Clyde River	National Park (II)	1
2001	Cullendulla Creek	Nature Reserve (II)	<1
2001	Barnunj	State Conservation Area (VI)	<1
2003	Yurammie	State Conservation Area (II)	<1
2004	Ben Boyd	National Park (II)	1
2005	Murramarang	National Park (II)	6
2006	Batemans	Marine Park (II)	2
2006	Batemans	Marine Park (II)	1
2006	Batemans	Marine Park (II)	1
2006	Batemans	Marine Park (II)	<1
2006	Batemans	Marine Park (II)	<1
2008	Bournda	Nature Reserve (Ia)	3
2008	Mimosa Rocks	National Park (II)	3
2008	Bournda	National Park (II)	1
2011	Meroo	National Park (II)	2
2015	Eurobodalla	National Park (II)	1
2016	Mumbulla	Flora Reserve (Ia)	2
2016	Murrah	Flora Reserve (Ia)	2
2016	Tanja	Flora Reserve (Ia)	<1
2016	Bermagui	Flora Reserve (Ia)	<1

Habitat	% of IBA	Habitat detail
Artificial/Terrestrial	major (>10)	Improved grassland & pasture; Other urban & industrial areas
Forest	major (>10)	Eucalypt open forests; Eucalypt tall open forests

Land use	% of IBA
nature conservation and research	major (>10)
forestry	major (>10)
rangeland/pastureland	major (>10)
agriculture	minor (<10)
urban/industrial/transport	minor (<10)

State government (state forest, protected areas and leasehold properties); private.

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Ulladulla to Merimbula (Australia). Downloaded from https://datazone.birdlife.org/site/factsheet/ulladulla-to-merimbula-iba-australia on 22/12/2024.