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  • Rights: The University of Waikato
    Published 17 September 2009 Referencing Hub media
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    In this video, Dr Candida Savage, from the University of Otago, talks about how New Zealand’s pristine1 habitats2 are like ‘natural laboratories’. This is because they offer good opportunities to study naturally functioning systems and to learn more about what different habitats may have been like before human impact.

    Transcript

    DR CANDIDA SAVAGE
    One of the interesting things about working in New Zealand is that we have got some systems that are very pristine systems to work in, so they are natural laboratories for us to understand how an estuary3 works under a natural setting. So many systems around the world are already altered by human land use changes and by practices that have been going on for decades, or centuries really. And so New Zealand offers us a nice opportunity to understand naturally functioning systems, and so it gives us valuable information that we can use on an international level to try and see what those systems were like before they were changed by human activities. The interesting aspect of New Zealand’s marine environment is that it is quite diverse, so you’ve got a whole range of different types of habitat4 that you can study within a close area. So we have got these beautiful areas around Otago and Southland, these estuaries5 – both pristine and the more impacted areas that we can work on – we’ve got the fiords6, and you’ve got the offshore coastal areas and the continental shelf7, so there’s a whole range of different types of environments that one can study.

    1. pristine: Unpolluted and unspoiled; in its original condition.
    2. habitat: The natural environment in which an organism lives.
    3. estuary: A partially enclosed body of water where freshwater mixes with saltwater from the sea.
    4. habitat: The natural environment in which an organism lives.
    5. estuary: A partially enclosed body of water where freshwater mixes with saltwater from the sea.
    6. fiords: Narrow inlet of sea, normally surrounded by steep landscapes. Typically created by glacial action.
    7. continental shelf: The part of a continent that is submerged in relatively shallow sea.
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      pristine

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    2. Unpolluted and unspoiled; in its original condition.

      fiords

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    4. Narrow inlet of sea, normally surrounded by steep landscapes. Typically created by glacial action.

      habitat

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    6. The natural environment in which an organism lives.

      continental shelf

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    8. The part of a continent that is submerged in relatively shallow sea.

      estuary

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    10. A partially enclosed body of water where freshwater mixes with saltwater from the sea.