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As summer reaches its height and the wattles shed their seeds, Australia’s ants get really busy. Although some might consider them a nuisance, researchers are discovering that the bush couldn’t do without ants.



Lumholtz tree kangaroo

Bullants with weevil
Image: Bob Taylor

Australia, entomologists are proud to say, has the highest ant biodiversity in the world. In other countries where ants thrive, you might find 30 different species per hectare. In Australia, says ant expert Dr Alan Andersen, it’s more like 100 species.

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Meat ant

Honey-pot (or sugar-bag) ants

Red bull ant

Argentine ants

Jack jumper

Green tree ants

Desert bull ant

Giant foaming ant

Tree ant

Collecting ants
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“Only about 20-25 per cent of all ant species have been described,” he says of how little is known about this enormous group on insects

There are probably up to 300 new species being discovered every year!” For anyone wishing to pursue a career in biology, ants are truly unexplored territory. Imagine if 300 new marsupials were still being discovered every year!

Why does Australia have so many ants? One reason, suggests Alan Andersen, is our diverse soils