Data Zone
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 |
|---|---|---|---|---|
| Chestnut-quilled Rock-pigeon Petrophassa rufipennis | LC | resident (1987–2008) | common | A2, A3 |
| Bush Thick-knee Burhinus grallarius | LC | resident (1998–2008) | frequent | A1 |
| Northern Rosella Platycercus venustus | LC | resident (1987–2008) | frequent | A3 |
| Varied Lorikeet Psitteuteles versicolor | LC | resident (1987–2008) | frequent | A3 |
| Rainbow Pitta Pitta iris | LC | resident (1987–2008) | common | A2, A3 |
| White-throated Grasswren Amytornis woodwardi | EN | resident (1987–1988) | 5,000–50,000 birds | A1, A2, A3 |
| Banded Honeyeater Cissomela pectoralis | LC | resident (1987–2008) | common | A3 |
| Silver-crowned Friarbird Philemon argenticeps | LC | resident (1987–2008) | abundant | A3 |
| Bar-breasted Honeyeater Ramsayornis fasciatus | LC | resident (1998–2008) | uncommon | A3 |
| White-lined Honeyeater Microptilotis albilineatus | LC | resident (1998–2008) | common | A2, A3 |
| White-gaped Honeyeater Stomiopera unicolor | LC | resident (1987–2008) | abundant | A3 |
| Yellow-tinted Honeyeater Ptilotula flavescens | LC | resident (1998–2008) | uncommon | A3 |
| Sandstone Shrike-thrush Colluricincla woodwardi | LC | resident (1987–2008) | frequent | A3 |
| Masked Finch Poephila personata | LC | resident (1998–2008) | uncommon | A3 |
| Long-tailed Finch Poephila acuticauda | LC | resident (1998–2008) | uncommon | 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 (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 | good | |
| Pressure (threats to the trigger species and/or their habitats) | ||||
|---|---|---|---|---|
| Threat | Timing | Scope | Severity | Result |
| Natural system modifications | happening now | most of population/area (50–90%) | moderate decline (10–30% over 3 generations) | high |
| Invasive and other problematic species and genes | happening now | most of population/area (50–90%) | slow decline (1–10% over 3 generations) | high |
| Response (conservation actions taken for the trigger species and/or their habitats) | |||
|---|---|---|---|
| Designation | Planning | Action | Result |
| Not assessed | Not assessed | Not assessed | not assessed |
| Year | Protected Area | Designation (management category) | % coverage of IBA |
|---|---|---|---|
| 1979 | Kakadu | National Park (Commonwealth) (II) | 27 |
| 1981 | Kakadu National Park | World Heritage Site (natural or mixed) (UA) | 27 |
| 1991 | Kakadu | National Park (II) | 27 |
| 1998 | Nitmiluk | National Park (V) | 3 |
| 2009 | Warddeken | Indigenous Protected Area (VI) | 48 |
| Habitat | % of IBA | Habitat detail |
|---|---|---|
| Rocky areas (eg. inland cliffs, mountain peaks) | major (>10) | Scree & boulders |
| Forest | minor (<10) | Rainforest & vine thickets |
| Grassland | minor (<10) | Hummock grasslands |
| Savanna | minor (<10) | Tropical eucalypt woodlands & grasslands |
| Shrubland | minor (<10) | Heath |
| Land use | % of IBA |
|---|---|
| nature conservation and research | major (>10) |
| other | major (>10) |
| hunting | minor (<10) |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Arnhem Plateau (Australia). Downloaded from
https://datazone.birdlife.org/site/factsheet/arnhem-plateau-iba-australia on 23/12/2024.