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Fauna Habitats

It will take many decades before rehabilitated areas naturally develop hollow logs and dead wood that provide ground habitat for animals living in Alcoa’s rehabilitation. Alcoa has recognised this and  so puts logs and rocks back into our rehabilitation to create habitat for fauna.
In the forest, animals such as goannas, snakes, chuditch, bandicoots and mardos use large hollow logs, rocks, and ground burrows for shelter, nesting, breeding and feeding. Many animals dig their burrows under logs and rocks to prevent cave-ins of the soil. Other animals, such as skinks, spiders and ants, live under or inside rotten or cracked wood, or live under rocks.
Fire is a natural part of the northern Jarrah Forest ecology.  Alcoa has conducted research to understand the effects of fire on these constructed fauna habitats. This research found that the habitats generally survive even the most intensive hot summer wildfires.  Although there is an overall reduction in the size of the habitats, very few were completely burnt, with stumps and rocks remaining intact.  The cooler prescribed burns that occur in rehabilitated sites should have only a minor impact on the ecological value of the habitats.

fauna habitat new

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AA fauna habitat in a newly rehabilitated area.

fauna habitat old

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With time an older fauna habitat has blended well into the rehabilitated vegetation.

Fauna habitat after fire

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Survival of a tree stump in a habitat pile following a hot summer wildfire.