Nature conservation

Biodiversity Reform

Broken Hill Complex - conservation status analysis

This page shows the conservation status of the bioregion, based on protection of landscapes within formal conservation management mechanisms.

Landscape-scale conservation

The Broken Hill Complex Bioregion is composed of 36 landscapes (Mitchell in prep). Of these, 8 are endemic to the bioregion. The size of these landscapes ranges from the Sturt Dunes landscape, which occupies the smallest area of the bioregion (1.36 hectares or 0.000036 per cent), to the Barrier Downs landscape, the largest area, which occupies almost 23 per cent (861,133 ha) of the bioregion.

Landscapes are not comprehensively reserved within the bioregion. Less than a third of the landscapes of the Broken Hill Complex Bioregion are represented in national parks or nature reserves. An additional landscape is represented in the wildlife refuges in the bioregion.

National parks and nature reserves

Eleven of the 36 landscapes are represented in national parks and nature reserves. However only 2 of these have more than 20 per cent of their bioregional area included in reserves.

Wildlife refuges

Four landscapes (968.82 hectares or 0.20 per cent of the Barrier Alluvial Plains landscape, 6,562.17 hectares or 0.76 per cent of the Barrier Downs landscape, 92.18 hectares or 7.34 per cent of the Lower Darling Lakes and Swamps landscape and 7,892.81 hectares or 3.19 per cent of the Scopes Sandplains landscape) occur in the 2 wildlife refuges in the bioregion.

Of these, the Barrier Downs landscape is not represented in reserves, while the Scopes Sandplains landscape is relatively better represented in wildlife refuge than in the reserves (7.94 hectares or 0.03 per cent of its bioregional area is reserved compared to 7892.81 hectares or 3.19 per cent of its bioregional area in the wildlife refuge program).

Historic site

The Mootwingee-Wonnaminta Ranges landscape is represented in the Mutawinji historic site. This landscape is also represented in the reserve (national park and nature reserve) program.

Conservation and clearing

Only 300 hectares of the Broken Hill Complex Bioregion is identified as cleared of its native vegetation canopy. This clearing is concentrated within 2 of the 36 landscapes, the Lower Darling Channels and Floodplains (200 hectares or 7.80 per cent of its area cleared) and the Scopes Sandplains (100 hectares or 0.04 per cent of its area cleared). Of these, the Lower Darling Channels and Floodplains landscape is not represented in reserves or other conservation tenures.

Page last updated: 26 April 2016