GCSE B9 RHS ecological sampling core practical

What is the name of the square frame used to assess percentage cover of plants?

• Set square

• Quadrate

• Squared frame

• Quadrat

What is the name of the survey used to assess changing biotic data across ecosystem profiles?

• Line transect

• Quadrat survey

• Belt transect

• Linear sampling

What name is given to the diagram created after doing a transect survey?

• Pyramid of numbers

• Bar graph

• Kite diagram

• Pyramid of biomass

If using a quadrat to do a population estimation what two things do you need to know?

• The volume of the quadrat and the number of times the quadrat is used

• The surface area of the quadrat and the number of times a particular species occurs within the quadrat

• The volume of the quadrat and surface area of the total survey area

• The surface area of the quadrat and the total survey area

What type of species can a quadrat not be used for?

• Snails

• Limpets

• Barnacles

• Crabs

• Fish

Would you use a quadrat in a transect survey?

• Possibly

• Yes, always

• Never

If there are no species recorded at transect point 2 or 1, but 3 records at transect point 3 and beyond, why should a line be joined between transect points 2 and 3 on a kite diagram?

• Because as you move away from point 3 to 2 there is a decreasing probability of finding the species there

• Because we have not done a continuous survey of the area

• To show there are no records between the two transect points

• There is no chance of the species being found just either side of point 2

What two important bits of information does a kite diagram give us about each species?

• Abundance time that the species are there

• Distribution and predator prey relationships

• Its trophic level within the food chain

• Their abundance and distribution