Ecosystem Gallery

Gidgee forest (Acacia cambagei)

Gidgee forest (Acacia cambagei). Gidgee replaces Brigalow (Acacia harpophylla) as rainfall falls below 550 mm per year and lies in a belt west of the Brigalow belt, forming part of the extensive acacia-dominated forest woodland shrublands of inland Australia. Like Brigalow, it has been cleared over large areas for pastoral and agricultural development, particularly in the east of its range, but has suffered less than Brigalow since it occupies semi-arid lands further inland which is only suitable for rangeland grazing. Near Bourke, northwestern New South Wales, Australia

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Barkers Cave

Barkers Cave, lava tube formed about 190 000 years ago from one of the earth's longest flows of lava from a single volcano: an estimated 1000 cubic metres a second flowing over 90 km to the north and 160 km to the north-west, Undara Volcanic National Park, Queensland, Australia

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Lava tube

Lava tube in a Park containing the remains of one of the earth's longest flows of lava from a single volcano: an estimated 1000 cubic metres a second flowing over 90 km to the north and 160 km to the north-west, some 190 000 years ago. Undara Volcanic National Park, rear Mount Surprise, northeastern Queensland, Australia

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