Discuss the relative importance of physical and human factors in accounting for changes to vegetation over time within ecosystems in the British Isles (40 marks)

40 mark essay question 

The key terms in this essay are:

Discuss the relative importance of physical and human factors in accounting for changes to vegetation over time within ecosystems in the British Isles.

Must include:

  • knowledge
  • understanding
  • critical understanding
  • synopticity
  • case studies
  • quality of argument and links
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Robyn Moore




Discuss the relative importance of physical and human factors in accounting for changes to vegetation over
time within ecosystems in the British Isles (40 marks)

The British Isles, located in the northern hemisphere is home to a mild climate and varied soils, giving rise
to a diverse pattern…

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Robyn Moore




axial tilt and changes in atmospheric composition (namely greenhouse effect.) All of these processes would
be classified as natural processes - even the greenhouse effect is part of the natural process of heat
balance in the atmosphere. Despite the fact that it has been acknowledged that climatic changes…

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Robyn Moore




how important human management has always been. On the other hand, physical factors are also of great
importance, particularly precipitation in heather moorland ecosystems. Average recordings for this
particular area show that there are roughly 100 wet days per year, along with moist westerly winds. The
wet climate…

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Robyn Moore




successions may take place within urban areas, depending on the type of habitat initially colonised. One
example of succession within an urban area is the lithosere-type succession that occurs on an abandoned
or neglected area. It follows the same basic course as normal succession, with pioneer species being…

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Robyn Moore




determine the type of vegetation that exists, as well as the overall structure of an ecosystem and the way
in which things work within it. The natural process of succession shows the fundamental importance of
physical factors, and yet all of the other examples, particularly plagioclimaxes and urban…

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Lucy

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