The bank vole (Myodes glareolus) is a small mammal found in various European habitats.
Bank voles eat plants (mosses, grasses, and tree seeds).
Weasels, kestrels, and adders are predators that eat bank voles.
Use this information to draw a food web.
Give the term used to describe animals that eat only other animals.
Scientists want to find out which habitat type bank voles prefer.
They use quadrats to sample six habitats, each dominated by different plant types.
They calculate the percentage of quadrats in each habitat where bank vole activity signs (such as latrines or clipped grass runways) are found.
The graph shows the results.
Name the type of habitat that the bank voles prefer most.
Suggest three reasons why bank voles may prefer to feed or nest in some habitats rather than other habitats.
The scientists search 650 quadrats in one specific habitat and find that 260 quadrats contain bank vole activity signs.
Calculate the percentage of quadrats containing bank vole activity signs in this habitat. Show your working.
Name the type of habitat where the scientists collected these results.
The scientists use a large number of quadrats to ensure that their data is reliable. Describe one way they can ensure that the data collected using quadrats is valid.
