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Einasleigh Uplands

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Title: Einasleigh Uplands  
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Einasleigh Uplands


The Einasleigh Uplands are an interim Australian bioregion of savanna and woodland located on a large plateau in inland Queensland, Australia.

Location and description

The uplands are an area of eroded volcanic rock on and to the west of the Atherton Tableland in the northern section of Australia's Great Dividing Range running inland as far as the town of Croydon in the southwest. The plateau is covered in grassland dotted with eucalyptus trees and cut through with ridges, gorges and lava tubes. The area has rich fertile soil. Natural features include the Great Basalt Wall of dried volcanic lava and the lava tubes of Undara Volcanic National Park.[1]

The climate is cooler than the coast with summer nights being as cool as 90 C compared with 200 on the coast. The summer high temperatures are around 350. There is a wet season between December and March.

Rivers that have their source in the uplands include the Flinders River which runs northwest to the Gulf of Carpentaria along with the Palmer, Mitchell and Gilbert-Einasleigh while the Burdekin and Herbert Rivers run south-east from the tablelands to the Coral Sea coast.

Urban areas include Herberton and Croydon.

Ecology

Einasleigh Uplands is the name given to this area in the Interim Biogeographic Regionalisation for Australia survey of different ecosystems in the country, while in the World Wildlife Fund's bioregion mapping they are described as Einasleigh Upland Savanna. These descriptions are based on study of the climate, plant life and terrain compared with neighbouring areas. This area is inland from the moist Queensland coast but is not as dry as the Brigalow Belt and the Mitchell Grass savannas south, while the Cape York Peninsula to the north is lower-lying and wetter. The region contains a number of specialised habitats that add to the variety of wildlife found here. These include lava flows and caves such as those of Chillagoe.

Flora

This stony upland habitat is dominated by ironbark eucalyptus woodland but there are wetlands and patches of rainforest too. Lava flows are home to stands of thicker forest.

Fauna

These woodlands are home to many animals including a number of marsupials such as the Antilopine Kangaroo, the large Eastern Grey Kangaroo and the near-endemic Godman's Rock-wallaby and Mareeba Rock-wallaby. There are a number of endemic mammals, reptiles and insects in the region especially in the more thickly forested areas where a large number of endemic reptiles occur. The caves and lava flows harbour specific wildlife of their own as do the wetter east-facing slopes of the uplands. Rivers such as the Burdekin have important populations of waterbirds as do the unique (to Australia) wetlands of Innot Hot springs.

Threats and preservation

The area has long been used for cattle ranching but apart from the heavily farmed Atherton Tableland is thinly populated so the landscape is well preserved although it has been changed by overgrazing, clearance for agriculture and the introduction of weeds. Some areas of the acacia gidgee (Acacia cambagei) in the southeast of the uplands have suffered in particular. There are a number of protected areas containing a good variety of the different types of habitat found in the region, including Undara and the Great Basalt Wall as well as part of Bulleringa National Park and the caves of Chillagoe.

References

Coordinates: 18°28′47″S 144°07′54″E / 18.47972°S 144.13167°E / -18.47972; 144.13167

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