Adelaide and Mary River Floodplains


IBA Criteria

Year of most recent IBA criteria assessment: 2009

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Magpie Goose Anseranas semipalmata LC resident - 800,000 individuals A4i
Wandering Whistling-duck Dendrocygna arcuata LC resident - 188,000 individuals A4i
Pied Heron Egretta picata LC unknown 1990-2000 2,000 individuals A4i
Bush Thick-knee Burhinus grallarius LC resident 1998-2008 uncommon A1
Red-necked Avocet Recurvirostra novaehollandiae LC unknown - 3,000 individuals A4i
Little Curlew Numenius minutus LC non-breeding 1990-2000 12,000 individuals A4i
Far Eastern Curlew Numenius madagascariensis EN non-breeding 1990-2000 1,050 individuals A4i
Sharp-tailed Sandpiper Calidris acuminata VU non-breeding 1990-2000 2,500 individuals A4i
Varied Lorikeet Psitteuteles versicolor LC unknown 1998-2008 uncommon A3
Rainbow Pitta Pitta iris LC resident 1998-2008 frequent A2, A3
Banded Honeyeater Cissomela pectoralis LC unknown 1998-2008 rare A3
Silver-crowned Friarbird Philemon argenticeps LC resident 1998-2008 uncommon A3
Bar-breasted Honeyeater Ramsayornis fasciatus LC resident 1998-2008 uncommon A3
White-gaped Honeyeater Stomiopera unicolor LC resident 1998-2008 common A3
Yellow-tinted Honeyeater Ptilotula flavescens LC resident 1998-2008 rare A3
Buff-sided Robin Poecilodryas cerviniventris LC resident 1998-2008 rare A3
Australian Yellow White-eye Zosterops luteus LC resident 1998-2008 rare A3
Masked Finch Poephila personata LC resident 1998-2008 uncommon A3
Long-tailed Finch Poephila acuticauda LC resident 1998-2008 uncommon A3

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here


IBA Monitoring

Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2008 high not assessed not assessed
Was the whole site covered? Yes State assessed by unset
Accuracy of information medium

Threats to the site (pressure)
Threat Level 1 Threat Level 2 Timing Scope Severity Result
Climate change and severe weather storms and floods likely in long term (beyond 4 years) some of area/population (10-49%) slow but significant deterioration medium
Invasive and other problematic species and genes invasive non-native/alien species/diseases - named species happening now some of area/population (10-49%) moderate to rapid deterioration high
Natural system modifications fire & fire suppression - increase in fire frequency/intensity happening now small area/few individuals (<10%) slow but significant deterioration low

Conservation actions taken at site (response)
Conservation Designation Management Planning Conservation Action Result
Not assessed Not assessed Not assessed not assessed
For more information about IBA monitoring please click here

IBA Protection

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Melacca Swamp Conservation Area 2,288 protected area overlaps with site 2,315
Mary River National Park 121,525 protected area overlaps with site 0
Mary River National Park 121,525 protected area contained by site 0
Lambells Lagoon Conservation Reserve Other Conservation Area 423 protected area overlaps with site 1,421
Harrison Dam Conservation Area Other Conservation Area 3,267 protected area overlaps with site 3,284
Fogg Dam Conservation Reserve 1,853 protected area overlaps with site 687
Djukbinj National Park 55,442 protected area overlaps with site 30,863
Black Jungle / Lambells Lagoon Conservation Reserve Other Conservation Area 4,952 protected area overlaps with site 0
Black Jungle / Lambells Lagoon Conservation Reserve Other Conservation Area 4,952 protected area overlaps with site 0
Adelaide River Foreshore Conservation Area Other Conservation Area 253 protected area contained by site 240

Habitats

IUCN Habitat Habitat detail Extent (% of site)
Forest Melaleuca forests & woodlands -
Wetlands (inland) Riverine floodplains -
Coastline Intertidal mud, sand & salt flats, Mangrove wetlands -
For further information about the habitat classification please click here.

Land use

Land-use Extent (% of site)
other -
nature conservation and research -
rangeland/pastureland -
For further information about the land use classification please click here.

Land ownership
Woolner, Koolpinyah and Kerlin Stations, Annaburroo, Marrakai, Opium Creek, Melaleuca and Swim Creek pastoral leases. Protected Areas jointly managed by the NT government and the Limilngan-Wulna people. Traditional Ownership.


Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Adelaide and Mary River Floodplains. Downloaded from http://www.birdlife.org on 30/09/2022.