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Your search returned 62 results

Listed under:  Science  >  Life  >  Ecosystems  >  Food webs
Video

Carbon country update

  • TLF-IDM016345

This five and a half minute video segment from Catalyst discusses the potential to manage controlled burning in Arnhem that reduces frequency of wildfires to provide other benefits. The potential to turn this into economic benefits from carbon trading is explored and the science investigations that will first be essential.

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Video

Coal Gas

  • TLF-IDM016742

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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Video

Turtles

  • TLF-IDM016391

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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Interactive

Using a Quadrat

  • TLF-IDM016167

Students use this resource consisting of eight slides with diagrams, written explanation and voice-over to understand how to use a quadrat to estimate a plant population size. There is a two-question quiz and a summary slide.

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Video

Cracked soils

  • TLF-IDM016422

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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Audio

Chemicals on the Great Barrier Reef

  • TLF-IDM016174

This program deals with a range of human impacts on the Great Barrier Reef. Herbicides from land runoff have been traced to algae and sea grasses in river mouths and coastal zones along the Great Barrier Reef. Effects include retardation of photosynthesis and growth of corals. Other pressures on the reef include high water ...

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Video

Too cold for cane toads

  • TLF-IDM016198

A new study reported in this video segment has looked at how temperatures impact cane toad movement and has aided in the development of a model that indicates that their geographical spread is limited. An excellent example of the use of mathematical modelling in scientific research and how scientists have tried to address ...

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Video

Ladybirds

  • TLF-IDM016211

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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Video

Sea Urchins

  • TLF-IDM016244

This 7 minute video segment from Catalyst describes an excellent example of how biologists have worked to investigate and solve a problem of an invading species of sea urchin that was devastating a marine ecosystem. The scientific approach to develop a biological control needed to rely on technologies such as radio tracking ...

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Video

Argo floats

  • TLF-IDM016590

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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Video

Rabbit immunity

  • TLF-IDM016591

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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Text

Above the snowline

  • TLF-IDM016595

This ABC In Depth feature article gives a range of examples of adaptations and responses of Australian alpine ecosystems, plants and animals to cold conditions.

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Interactive

Population Size

  • TLF-IDM016596

Students use this resource consisting of ten slides with diagrams, written explanation and voice-over to understand competition amongst organisms for resources that are limited and other factors that may affect population size. There is a two-question quiz and a summary slide.

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Interactive

Macrobiotica – science @ the lakes

  • TLF-IDM016628

In this resource students work as scientists while exploring their local environment in the real world of scientific endeavour. Games and animations are used to model the real experience of investigating a freshwater lake. This version of the Macrobiotica resource has been modified for Internet use by removing Teaching ...

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Video

Dr Ove Goegh-Guldberg

  • TLF-IDM016629

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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Text

Kooaaa! It's a kookaburra

  • TLF-IDM016300

This ABC In Depth feature article describes how kookaburra chicks fight for survival in the family nest in springtime.

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Video

Seahorses

  • TLF-IDM016644

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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Online

Water: Our most precious resource

  • TLF-IDM020051

This study guide explores how Australian cattle and sheep farmers manage sustainable and efficient water use, including maintenance of healthy soils, moisture preservation, erosion and viable grazing systems. A range of articles and student activities explore the water cycle and ways in which farmers are using water saving ...

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Video

Rob Harcourt

  • TLF-IDM016728

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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Interactive

Cassowary ecology quiz

  • TLF-IDL119

Explore facts about the life of cassowaries: physical characteristics; diet; habitat; life cycles; and locations. Interact with graphs to see how much people can help cassowaries. Work through ecology notes and resources. Answer questions as you go; express your answers as fractions. This learning object is one in a series ...

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