Giant Barred Frog

As its name suggests, the giant barred frog (Mixophyes iterates) is a large amphibian – up to 115 millimetres in length – and distinguished by the barring on its limbs. The giant barred frog is an endangered animal in NSW.

Giant barred frog habitat

The giant barred frog lives on the coast and ranges from south-eastern Queensland to the Hawkesbury River in NSW. The giant barred frog has disappeared from south of the Hawkesbury and there are no recent records from the Blue Mountains. The area around Coffs Harbour and Dorrigo, in north-eastern NSW, is now considered its stronghold.

The giant barred frog lives amid the deep, damp leaf litter in rainforests, moist eucalypt forests and nearby dry eucalypt forests below 1000 metres in altitude. It breeds around shallow, flowing rocky streams and feeds on large insects and spiders.

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Threats to the giant barred frog

Changes to water quality – mainly through sedimentation or pollution – pose the greatest threat to the giant barred frog. Alterations to water flow, the removal of leaf litter and surrounding vegetation, timber harvesting, introduced fish, weed spraying and the chytrid fungal disease also impact dramatically on frog numbers.

Solutions – What can be done?

Land owners can help this frog by maintaining vegetation and deep leaf litter around its streamside habitats, minimising changes to water quality and flow, reducing chemical use, minimising stock access to streams, and excluding logging in and around frog breeding habitat. Cleaning footwear, equipment and tyres before and after visiting frog sites is also recommended to help prevent the spread of the chytrid fungal disease.

The Nature Conservation Trust’s conservation work on private lands is helping to protect habitat for the giant barred frog.