Cape Portland


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
Cape Barren Goose Cereopsis novaehollandiae LC non-breeding (-) 450–1,000 birds A4i
Chestnut Teal Anas castanea LC non-breeding (-) 1,000–2,000 birds A4i
Tasmanian Native-hen Tribonyx mortierii LC resident (1998–2008) common A2, A3
Hooded Plover Thinornis cucullatus VU resident (1994) 29–94 birds A1
Green Rosella Platycercus caledonicus LC resident (1998–2008) uncommon A2, A3
Yellow Wattlebird Anthochaera paradoxa LC resident (1998–2008) abundant A2, A3
Striated Fieldwren Calamanthus fuliginosus LC resident (1998–2008) abundant A3
Tasmanian Scrubwren Sericornis humilis LC resident (1998–2008) abundant A2, A3
Black Currawong Strepera fuliginosa LC resident (1998–2008) common A2, A3
Flame Robin Petroica phoenicea LC non-breeding (1998–2008) common A1, A3

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 (2020) is shown below.

IBA conservation assessment
Year of assessment State Pressure Response
2020 good very high very low
Whole site assessed? State assessed by Accuracy of information
no habitat medium

State (condition of the trigger species' habitats)
Habitat Quantity (% remaining) Quality (% carrying capacity) Result
Marine Coastal/Supratidal good (>90%) good (>90%) good

Pressure (threats to the trigger species and/or their habitats)
Threat Timing Scope Severity Result
Climate change and severe weather happe­ning now whole of popul­ation/area (>90%) moderate decline (10–30% over 3 gener­ations) very high
Agricultural expansion and intensification happe­ning now most of popul­ation/area (50–90%) slow decline (1–10% over 3 gener­ations) high
Energy production and mining happe­ning now some of popul­ation/area (10–49%) 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%) Unknown Very little or no conservation action taking place very low

IBA Protection

Year Protected Area Designation (management category) % coverage of IBA
1976 Cape Portland Private Sanctuary (VI) 13
1999 Musselroe Bay Conservation Area (VI) 9
1999 Mount William National Park (II) 8
2002 Eddystone Point Lighthouse Historic Site (V) <1
2012 Cape Portland Conservation Area (V) 3
2012 Lighthouse Point Conservation Area (V) <1

Habitats

Habitat % of IBA Habitat detail
Artificial/Terrestrial major (>10) Improved grassland & pasture
Marine Coastal/Supratidal major (>10)
Grassland minor (<10) Tussock grasslands
Introduced vegetation minor (<10)
Marine Intertidal minor (<10)

Land use

Land use % of IBA
rangeland/pastureland major (>10)
nature conservation and research major (>10)
energy production and mining minor (<10)

Land ownership
Private land on most of inland Cape Portland, some classified as 'private reserve', remaining area is in protected areas.


Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Cape Portland (Australia). Downloaded from https://datazone.birdlife.org/site/factsheet/cape-portland-iba-australia on 18/12/2024.