Required Practical Activity 9 - Measure the population size of a common species in a habitat. Use sampling techniques to investigate the effect of a factor on the distribution of this species

Question 1

What is used to work out the distribution and abundance of species in an ecosystem?

Answer 1

-To work out the distribution and abundance of species in an ecosystem, tools called transects and quadrats are used
-Can then process this information, by calculating the mean, mode and median and then drawing a graph

Question 2

Method for random sampling:

Answer 2

1) Calculate the area of the field - what is 10%?
2) Area of each square
3) Choose the coordinates for your quadrat using a random number generator
4) Count the daisies in each quadrat
5) Mean number of daises per quadrat
6) Estimate of the number daisies in each field
7) Count actual number of daisies in the field

Question 3

What is a Quadrat?

Answer 3

Set area used to measure number of (a) species in it