Food Web



The biotic factors were monitored as they also impact on the survival of frogs and they are interrelated with the abiotic factors, determining the health of a wetland. The food web below shows the possible feeding relationships of frogs and tadpoles in our wetlands. The food web was developed after monthly sampling of macro invertebrates in our water. 

An Example Of A Food Web In Our Wetlands 


A suitable diet is necessary for both the tadpole and adult stages. A complex food web of a healthy wetland is necessary for the frog’s survival. Our research supports that such diverse types of macro invertebrates are established in the wetlands. The sensitivity index of the macro invertebrate is also a good indicator of the quality of water. Our wetlands have developed a healthy complex food web of aquatic and terrestrial macro invertebrates suitable for frogs and tadpoles. There has also been an increase in water bird life and turtles that feed on both frogs and tadpoles. These predators are important to keep a balance of organisms in the wetland ecosystem.

Sedges are also important in the wetland. They not only filter nutrients from the water, but they also provide ideal locations for the tree frog Litoria moorei and Geocrinia leai to attach its eggs. As the eggs develop they swim away in the surrounding water.

Macro invertebrate sampling in frog hollow