REQ.PRAC measure population size of common species

Question 1

method

Answer 1

1) place a quadrat on ground at random
2) count number of individual plants of one species in quadrat
3) repeat process and work out mean
4) work out mean no.of plants in 1m^2
5) measure area of whole habitat and multiply no. of plants in 1m^2 by whole area

Question 2

considerations

Answer 2

• make sure it’s random

- more samples taken, more accurate

Question 3

hazards

Answer 3

• throw quadrat low to ground, not air

- wash hands after ecology work in a habitat

Question 4

to see how plants are spread or distributed in a habitat:

Answer 4

1) stretch a long tape, called a transect line, across area
2) place quadrat down at regular intervals along line
3) count plants in the quadrat each time