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Societal issues relating to biodiversity Kath Crawford & Paul Beaumont

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Societal issues relating to biodiversity Kath Crawford & Paul Beaumont. To: Promote discussion about measurement of biodiversity Introduce methods of data analysis Explore how such activities support A Curriculum for Excellence. Aims. Measuring biodiversity. 1. 2. 3. 4. 5. 6. 7. 8.

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Presentation Transcript
slide1
Societal issues relating to biodiversity

Kath Crawford

&

Paul Beaumont

slide2
To:

Promote discussion about measurement of biodiversity

Introduce methods of data analysis

Explore how such activities support A Curriculum for Excellence

Aims
measuring biodiversity
Measuring biodiversity

1

2

3

4

5

6

7

8

9

10

Taken from: http://internt.nhm.ac.uk/eb/homepage.shtml

slide4
A local authority has a limited budget for conservation projects. You are asked to select one area which should be protected. So:

In groups of 6 examine the data and discuss which area(s) show the greatest biodiversity

Draw up a list of the factors which you might take into account when making your decisions

Aims
slide10
How do we quantify rarity?

Define a quantity ‘Range-size rarity’, RSR,

RSR = 1/x where x is the number of areas in which a species is found to be present

cladogram14

Cladogram

Song thrush  Common shrew = 4 nodes

summary conclusions
Summary/conclusions
  • Measurement of biodiversity is not trivial!
  • Before decisions about which area(s) to conserve are made, a number of factors need to be considered. These include species richness, range-size rarity and taxic richness
  • Species richness and taxic richness are useful indicators but their usefulness depends upon the quality of data collection
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