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Minimal Impact

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Minimal Impact. Throughout time humans have altered the environment to ... in rubbish dumps has led to an increase in scavenging birds such as silver gulls. ... – PowerPoint PPT presentation

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Title: Minimal Impact


1
Minimal Impact
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  • Throughout time humans have altered the
    environment to meet their needs, often without
    thought for the consequences. This has led to
    impacts on nature that will continue to escalate
    in the 21st century.

3
  • Many human-initiated changes have had an adverse
    effect on aspects of the environment. In the
    relatively short amount of time since European
    settlement, the Australian landscape has
    undertaken significant change.

4
  • Since European settlement, large areas of land
    have been cleared for farming or harvested of
    timber for building and development, urban
    development and the introduction of feral animals
    and plants.

5
  • Recreation practices can have a significant
    impact on the environment. Even minor changes to
    an environment can cause an impact

6
  • For example, the availability of food in rubbish
    dumps has led to an increase in scavenging birds
    such as silver gulls. As a result species that
    compete with it have decreased in numbers or
    disappeared.

7
  • Another example is shark netting around popular
    beaches. This has been linked to a reduction in
    the number of large marine animals such as
    dolphins and turtles.

8
TASK
  • As a recreational user of _____________(pick an
    activity) list steps you took or could take to
    reduce the impact your visit had on the
    environment.
  • Some possible responses include
  • Taking your rubbish home
  • Keep out of sensitive alpine bog areas unless
    heavily snow covered
  • Dont feed native animals
  • Use the toilets provided
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