Biodiversity in the BDT Region

Regional significance of biodiversity

The Burdekin Dry Tropics is an incredibly biodiverse region with biodiversity assets of national and international significance. Although dominated by tropical savanna woodlands and grasslands, its natural ecosystems span the full suite of tropical biodiversity and include mountainous rainforests, large river systems and coral reefs.

The region forms a biogeographic feature known as the 'dry corridor' which adjoins wet tropical bioregions to the north and south and extends the range of fauna and flora more typical of the drier interior to the coast. The region also contains significant wetlands with a large number listed in the Directory of Important Wetlands in Australia .

The coastal areas are of exceptionally high conservation value. They include the Great Barrier Reef World Heritage Area, Ramsar Wetland sites, two Dugong Protection areas, seagrass beds in Cleveland and Bowling Green Bays.

Biodiversity values include recognised centres of species richness and endemism for birds (>300 species), mammals (>70 species), reptiles, amphibians, eucalypts and acacias. The many significant biodiversity assets of the region also include parts of two World Heritage Areas (the Great Barrier Reef and the Wet Tropics), and other coastal and terrestrial protected areas including national parks and conservation parks, Australian and Queensland marine parks, Fish Habitat Areas and Dugong Protection Areas.

Bioregions

The region is comprised of three main bioregions: the Einasleigh Uplands, the Desert Uplands and, the Brigalow Belt North. The Brigalow Belt, Desert Uplands and the Einasleigh Uplands bioregions are considered National Biodiversity Hotspots.

Portions of the Wet Tropics, Central Queensland Coast, Southern Brigalow Belt and Gulf Plains Bioregions also fall within the region. See Map 8.2.

A large number of non-reef and reef marine bioregions also occur in the adjoining marine environment. See Map 8.5. 

Regional ecosystems

Within the terrestrial bioregions there is a high diversity of vegetation types that in combination with particular landform settings form regional ecosystems. 

Open woodlands and grasslands dominated by eucalypts and acacias predominate. Other vegetation types include closed riparian forests, rainforests, open forest, vine thickets, sedgelands and open wetlands, mangrove and freshwater swamp forests, coastal dune communities and seagrass meadows. See Map 8.3.