Quadrat Practicals

Question 1

Describe how quadrats should be used to estimate the number of dandelion plans in
a field:

Place a _____________ number of quadrats _____________ around the field.

_________ the dandelions in each quadrat.

Use the __________________________, area of the _________ and area of the ________ to estimate population.

Answer 1

sufficient
randomly

Count

mean number of dandelions
quadrat
field
estimate population

Question 2

Comparing population sizes in 2 habitats:

_________________ a quadrat in the area.

Count the number of _____________________ within the quadrat.

Repeat the process _______________.
__________________ and repeat the process.

Compare your results by calculating a _______________________.

Answer 2

Randomly place
different plant species
several times
Visit the other area
mean for each location

Question 3

If there is a ________ across the habitat, such as distance up a beach,
or altitude on a hillside ______________________ can be used to avoid ________________.

Answer 3

trend
systematic sampling
biased results

Question 4

In some practicals, a quadrat is placed at regular distances along a transect.

What is a transect?

Answer 4

An imaginary line where sampling takes place.

Question 5

What does the width of a bar on a kite diagram represent?

Answer 5

How many individuals were observed at that point.