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Pungalina

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Pungalina is a vast conservation reserve on the fringe the Gulf of Carpentaria in the Northern Territory of Australia. Featuring rugged Proterozoic sandstone escarpments, natural waterfalls and a network of steep-sided gorges and canyons, Pungalina is defined by the Calvert River - a river of national significance in Ausralia[1]. The area is home to hundreds of unique and rare Australian flora and fauna.

Geography

No Name Creek at Pungalina

Pungalina is a vast land mass covering 195,000 hectares (482,000 acres) in outback of north eastern Northern Territory, Australia. The area is on the edge of a rugged Proterozoic sandstone plateau, overlooking the floodplains that fringe the Gulf of Carpentaria. The area is carved by the Calvert River, which collects the annual monsoon rains into a network of gorges before dropping down off the plateau and heading north to the Gulf of Carpentaria.

The location of Pungalina in the Northern Territory of Australia

Ecosystem

Pungalina is blanketed in a wide variety of savanna woodlands, wetlands, riparian strips and vine thickets. The Calvert River is home to threatened species such as the Freshwater Sawfish, the Red Goshawk, the Australian Bustard and freshwater crocodiles. It is also believed that the River contains three species of reptiles, the Carpentarian Ctenotus, the Borroloola Delta and also the Gulf Snapping Turtle.

The Calvert River is listed by the Northern Territory government as a ‘Biodiversity Site of National Conservation Significance’[2].

The Calvert River is lined with tall Paperbarks, River Red Gums and an understorey of Pandanus and Freshwater Mangroves which provide habitat for some of northern Australia’s rarest birds, including the White-browed Robin and Purple-crowned Fairy-wren. The sandstone walls of the gorges are etched by gullies with thick fire sensitive vegetation.

The table below provides a summary of the ecological significance of Pungalina.

Size 195,000 ha
Bioregion Gulf Coastal Bioregion
Species present Pungalina supports an estimated:
500 plant species
20 frog species
75 reptile species
170 bird species
35 mammal species
Threatened species Pungalina supports at least 13 fauna species listed as threatened, including the Freshwater Sawfish and Australian Bustard
Ecosystems At least 14 vegetation types, based on Northern Terrioty vegetation mapping
5 communities are recognized as threatened

Ecological threats

In general, the region around the Gulf of Carpentaria has experienced a greater degree of pastoral intensification than other areas of the Northern Territory and the Kimberley. This includes heavier grazing pressure, a more dramatic change in fire patterns and weed encroachment. Pungalina is a stark exception to this general pattern, with a history of low stocking rates, few weeds, very small populations of feral animal species and no woody thickening.

It thus provides an important refuge area, as well as being in a prime position in the centre of the Gulf for facilitating the implementation of regional conservation programs.

Ecological priorities Establishment of infrastructure

control of weeds

fire management

biological surveys and monitoring

control of pigs

Protection efforts

The Wildlife Australia Fund, a United States based charitable trust and supported by Australian expatriates in the New York City is actively fundraising to support a contract to purchase Pungalina. The Wildlife Australia Fund sees the acquisition of Pungalina as vitally important for the conservation of a suite of unique Australian animals.

References