#

Your World Heritage...

Nursery frogs

There is a group of frogs in northern Queensland which do not have a free-swimming tadpole. These frogs are very small and are known as Microhylids, which means tiny tree frogs. They occur elsewhere in the world but within Australia they are confined to the Wet Tropics.

Microhylid adults are usually under 2cm in length and they frequently call while hiding under tree bark, rocks or leaf litter. They take some patience to find because they can squeeze into the tiniest hidey holes. They also share a ventriloquist quality with many other frogs which makes finding them a real test of willpower.

This group of frogs is commonly called nursery frogs because they lay a small clutch of eggs in very moist soil under rocks, logs and leaf litter. The eggs are coated with a special anti-fungal agent to help the eggs survive in a wet environment. The tadpole actually develops inside the egg and when it has completed metamorphosis, it simply hatches from the egg!

There are two genera of nursery frogs in North Queensland and the majority of their species are endemic to the Wet Tropics rainforest. The first group is the genus Cophixalus and some of these are only found on one mountaintop and no other. A couple of these can be found down to 80 metres altitude, including the most common Australian microhylid, the ornate nursery frog. The call of the ornate nursery frog (Cophixalus ornatus) is a nasal 'beeeep' which sounds wonderful reverberating through the rainforest at night.

The other group is the genus Sphenophryne with only three representatives in the Wet Tropics, but those three are more widely distributed through the region's forests. The Sphenophryne species are about as small as the Cophixalus but they tend to have a more rounded, almost rotund body.

One of them - the white-browed chirping nursery frog (Sprenophryne pluvialis) has a call that sounds just like the ring of a mobile phone!

 

 

News and Events

Click to expand

News and Events

Click to collapse
New cassowary rehabilitation centre announced for far north Queensland

New cassowary rehabilitation centre announced for far north Queensland

A privately operated cassowary rehabilitation facility has received approval from the Department of Environment Protection (EHP) to open on the A... READ MORE

Advisory committees to inform Wet Tropics board

Advisory committees to inform Wet Tropics board

Leading experts and industry leaders will play a critical role in protecting one of tropical north Queensland’s most valuable natural resources.... READ MORE

Promoting initiatives that showcase all the Wet Tropics has to offer

Promoting initiatives that showcase all the Wet Tropics has to offer

New partnerships are helping develop sustainable tourism opportunities in the Wet Tropics region.... READ MORE