25) Unit 2 - Sampling of Wild Organisms Flashcards Preview

CFE - Advanced Higher Biology > 25) Unit 2 - Sampling of Wild Organisms > Flashcards

Flashcards in 25) Unit 2 - Sampling of Wild Organisms Deck (10)
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1
Q

what considerations should be made when carrying out sampling/ How should sampling be carried out

A
  • carried out in a way that minimises impact on wild species and habitats.
  • consideration should be given to rare and vulnerable habitats that are protected by legislation
2
Q

List the methods of sampling and which types of organisms they would be used to sample

A
  • Transect Studies using quadrats for sessile and slow moving species
  • Point count for birds
  • Capture techniques for mobile species
  • camera traps for elusive species
  • scat sampling for elusive species
3
Q

describe how a transect study is carried out

A
  • A long line is placed where different samples can be taken

* quadrats are placed along transect allowing abundance to be recorded

4
Q

what type of conditions is the transect line usually placed on

A

terrain or abiotic factors are changeable

5
Q

describe what point count is

A

recording the number of birds seen and heard from a stationary point

6
Q

describe what scat sampling is, and what sort of info is gained from this type of sampling

A
  • indirect method where animals droppings are analysed

* provides info about abundance and diet

7
Q

Name the types of sampling

A
  • Random
  • Stratified
  • Systematic
8
Q

Describe random sampling

A

individuals selected randomly from a larger population

9
Q

describe stratified sampling

A

one larger population divided into smaller sub populations.

Then individuals are randomly selected from each sub population

10
Q

described systematic sampling

A

taken at regular intervals e.g. every 2 meters along transect

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