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AUSTRALIAN
Desert Shrublands & Grasslands
(Mulga & Spinifex)

The vast arid lands of Australia...

Damon Ramsey in desertthe author made to feel small in the expansive salt flats

The 'deserts' of Australia are not just the rolling sand dunes people have in their mind when they think of that word. It includes the grasslands, shrublands and woodlands of the arid regions, where the erratic rainfall is less than the evaporation rates of that water, resulting in a deficit of moisture. As the world's driest continent, Australia obviously has a large portion of it's country defined as arid 'desert' ecosystems.  

desert lake full of waterDesert lake full of water, South Australia

Unlike many other arid areas in the world, in Australia the rainfall is not always received in annual cycles, but often follows longer term non-annual events. There is a boom-and-bust pattern that occurs over many years, and can be unpredictable, with little rain for many years, and then a huge amount at once with subsequent flooding.  

red sand of desertthat red sand gets everywhere. Just ask Anakin.

Much of the arid land of Australia is dominated by bunches of prickly grass called 'Spinifex'. Over long periods of time, weathering and oxidisation has resulted in distinctive bright orange-red soils...

For the page of the plants of Australian desert shrublands and grasslands

sturt's desert peaSturt's Desert Pea, (Coober Pedy, SA)

Class Reptilia

Order Squamata: Lizards & Snakes

There is one group that is very diverse in these arid habitats of Australia - lizards! In fact, there are claims that some of the dry habitats in Australia, such as the Spinifex grasslands, have the highest diversity of lizards in the world. However, this does not mean you will see lots of them; in the winter they may be scarce, and in the summer, they run fast and take shelter inside and under the prickly grasses.

Family Agamidae: Dragons

Many of the dragons of the region seem to have annual cycles, only living for one year.

Ctenophorus caudicinctus, 'Western Ring-tail Dragon'.(Millstream National Park, Western Australia)

Ctenophorus caudicinctus, 'Western Ring-tail Dragon'. Found in arid shrublands and sub-tropical woodlands of central west of Australia, mostly around Pilbara region.

For the page of the birds of Australian desert shrublands and grasslands

For the page on the mammals of Australian deserts

euro(Alice Springs Olive Pink Botanical Gardens)

Updates
My first trip after the virus is as Expedition leader in Tasmania with Coral Expeditions, followed by my role as biologist guest lecturer on the Great Barrier Reef. If you can't go travelling until everything settles down, then until then, here I am doing online guided walks for Noble Caledonia and online lectures for Silversea.