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Listed under:  Science  >  Life  >  Ecosystems  >  Bioindicators
Moving Image

Cockles' role in food webs

This is a colour video clip of marine scientist Stephen Wing, from the University of Otago in New Zealand, discussing the role cockles ('Austrovenus stutchburyi') play in marine food webs in New Zealand. (Classification - Phylum: Mollusca; Class: Bivalvia; Order: Veneroida; Family Veneridae.)

Moving Image

Declining forests of Giant Kelp

Imagine diving between giant kelp that reach more than 30 metres from the bottom of the ocean to the surface. The east coast of Tasmania is one of the few places in the world where these underwater forests exist. But how much longer will they survive? Watch this clip to find out why these magnificent ecosystems are disappearing ...

Moving Image

Manta rays indicate health of coral reefs

Coral reefs are the second most endangered species on the planet. Meet a group of researchers who are tracking individual manta rays to help them assess the health of Australia's reef ecosystem. Find out how the manta ray can be used as a bioindicator for the health of the reef. See how scientists identify individual manta ...

Teacher resource

Frogs - unit of work

This unit of work focuses on the important role frogs play in their terrestrial ecosystems and why they are considered ‘environmental indicators’. Students will investigate factors threatening frog populations and develop an action plan to increase the diversity of frog species in their local area.

Teacher resource

Frogs as environmental indicators - unit of work

Students examine the important role frogs play in their terrestrial ecosystems and why they are considered ‘environmental indicators’.


Heron eating a frog

This colour image is a photograph of a heron ('Ardea sp') with a frog in its bill. The heron has a thin sharp yellow bill, a white head and long S-shaped neck, with prominent black patches, blending to grey feathers on its body. The frog has a white underbelly and dark upper surface.


Climate change scientists with plants

This is a colour photograph of CSIRO scientists Dr Peter Brown (left) and Dr Michael Dunlop in the field with plants they consider may become ecologically important under climate change. The scientists are looking down at an area that may include fungi, legumes and weeds.

Teacher resource

The mountain-pygmy possum: On the edge

In this series of tasks, students identify habitats for the endangered mountain pygmy-possum, and use Geographic Information System (GIS) and geographical techniques to identify preferred survey sites and to estimate population numbers. The resource focuses on the biophysical environment of suitable alpine habitats; students ...