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Listed under:  Science  >  Life  >  Ecosystems  >  Food webs
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Party locusts

This 8 minute video segment from Catalyst is an excellent example of animal behaviour of locusts as a successful adaptation and how understanding the behaviour can potentially help reduce the damage they cause.

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Management of the northern savanna

Around the world, tropical savannas are in serious trouble. This clip from 2007 explores the use of Aboriginal technology for sustainable management of the environment in Australia's huge northern tropical savanna. Hear from two environmental scientists why traditional fire-management practices may reduce the incidence ...

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Ladybirds

This program encourages people to observe and identify ladybirds in their own backyard. There is the potential to discover a new species or identify an introduced and harmful member of this group of insects.

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Dingo secrets

This 9 minute video segment from Catalyst shows a biologist is finding out about how a family of multi-coloured dingoes is challenging our very idea of these animals. Technology has been invaluable in learning how young dingoes are taught adult behaviour and survival behaviours of the pack.

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Borneo Live Reef Fish Trade

This nearly 13 minute video segment from Catalyst explains how Fisheries scientists warn that if fishing around the world continues at its current pace, more and more species will vanish. The coral triangle is one particular area where biodiversity is at risk, and the top predator appears to be humans.

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Turtles

This 7 minute video segment from Catalyst describes the risk factors that impact on turtle survival. Protecting the future of turtle populations on the Queensland coast has been the life's work of Col Limpus for the past 40 years. His efforts have included research and reducing predation from foxes and entrapment in trawler nets.

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Cloud seeding

This nine and a half minute video segment from Catalyst describes how researchers from Monash University have hard evidence that cloud seeding can produce good amounts of extra rainfall. Data collected over a long period of time has give hope to scientists and environmentalists who are trying to reduce the impacts of droughts ...

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Water recycling

This 11 minute video segment from Catalyst provides an excellent explanation of the processes involved in recycling sewage for an urban water supply. It also provides a range of opinions and concerns in an excellent debate on the topic.

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Dr Ove Goegh-Guldberg

This 5 minute video segment from Catalyst highlights the vulnerability of some of our ecosystems and the way abiotic factors can have a dramatic effect. It also exemplifies the difficult process of having new scientific ideas accepted.

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Artificial shark birth

A five and a half minute video segment from Catalyst that explains why Grey Nurse Sharks are in danger, especially on Australia's east coast where only a few hundred individuals are thought to exist. However, in a world first, researchers at the NSW Department of Primary Industries have built an artificial uterus, which ...

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Cracked soils

This brief video segment from Catalyst demonstrates how scientists have developed probes to measure the water content of soils and therefore monitor the effectiveness of irrigation and the efficiency of water usage.

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Weedy Seadragons

This five and a half minute video segment from Catalyst demonstrates how tagging is being used to study populations of sea dragons. The Weedy Seadragon is one of the most visually striking creatures in the sea but we still have a lot to learn about them.

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Coal Gas

This 12 minute video segment from Catalyst outlines how for decades, scientists have worked to develop technologies that can unlock the energy from coal while reducing the risks of digging it up and burning it. Now entirely new industries are booming as they tap into coal seams either too gassy or too deep to be mined by ...

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Argo floats

This minute video segment from Catalyst decade ago describes the Australian initiative, Argo, that has become a major international collaborative project to look at the world's oceans and help understand processes at depth - monitoring the pulse of the global heat balance and giving us vital information on the ocean's role ...

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Seahorses

This six and a half minute video segment from Catalyst shows one of the most beautiful and bizarre creatures under the sea, the seahorse. Their highly unusual reproduction has not been sufficient to overcome the impacts of habitat destruction and human predation.

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What have we got here? With Dr Dave series 1

This series of 10 short videos examines terrestrial and aquatic species in the Murray-Darling Basin. It features five endangered species: the bush stone-curlew, the Murray-Darling carpet python, squirrel gliders, the River Murray turtle and the native pygmy perch. Other topics covered in the series are; native animals as ...

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Rabbit immunity

This 6 minute video segment from Catalyst covers a range of biological concepts associated with the history, impacts and methods of control of the introduced rabbit in Australia.

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Rob Harcourt

This 6 minute video segment from Catalyst highlights a number of diverse investigations that are part of the work of a marine biologist. It uses an incredible collection of photographs to inform and inspire people about conservation.

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Dengue Mozzie

This nine and a half minute video segment from Catalyst is an excellent example of current Australian science, the use of biological controls on a pest and modern techniques and approaches to fighting the spread of human disease.

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Catalyst: Megafauna fossils

Travel back in time in outback Australia and investigate the giant lumbering beasts of the past - the megafauna. Visit a fossil site in Cuddie Springs, New South Wales, where megafauna bones have been discovered. Explore the connection between Aboriginal peoples and megafauna, and theories for the extinction of Australia's ...