|Most recent IBA monitoring assessment|
|Year of assessment||Threat score (pressure)||Condition score (state)||Action score (response)|
|2008||high||not assessed||not assessed|
|For more information about IBA monitoring please click here|
Lake Nuga Nuga IBA (3000ha) is located in the Arcadia Valley, 100km NNE of Injune and covers the full extent of the lake. It is within the Dawson-Fitzroy catchment (contra the Directory of Important Wetlands) with a sub-humid climate and summer-dominant rainfall. Vegetation consists of extensive submerged aquatics, notably waterlilies Nymphaea, with fringing brigalow Acacia harpophylla, belah Casuarina cristata and dry vine forest on northern margins, exotic pastures surrounding remainder. Lake Nuga Nuga is a semi-permanent water body (only two historical records of drying) but water levels fluctuate greatly. The lake is of recent origin, <150 years old, and was formed by a sequence of natural flooding and depositional events. This recent origin explains the presence of large numbers of dead, drowned trees in the lake (more typically seen in artificial impoundments).The lake shores are grazed by cattle from adjoining properties. The adjacent Nuga Nuga National Park abuts the north-western margins of the lake. Currently no water is extracted from the lake.
Also thousands of Black Swan, Hardhead, Little Pied Cormorant, Little Black Cormorant and Eurasian Coot, hundreds of Great Cormorants, and up to 4000 Pink-eared Duck, 500 Whiskered Tern, 200 Great-crested Grebe and 100 Brolga. The bird community reflects the fluctuations in water level with most waterbirds being piscivores/insect-crustacean feeders/macrophyte-eaters that forage in open water. No/little extensive shallow open water or reeds/sedges, so few waders, herons, spoonbills etc. Adjacent Acacia forests and vine forest support some species at or approaching inland distributional limits in south central Queensland: Emerald Dove, Oriental Cuckoo, Shining Bronze-Cuckoo, Lewin's Honeyeater, Spangled Drongo and Cicadabird.
Non-bird biodiversity: The vulnerable (Qld) snake Denisonia maculata has been recorded on lake margins.
BirdLife International (2020) Important Bird Areas factsheet: Lake Nuga Nuga. Downloaded from http://www.birdlife.org on 16/07/2020.