Investigatory project of bio
on population density of plants
Answers
Answer:
Aim
To study the plant population density by the quadrant method.
Materials Required
Nail.
Thread
Hammer
Procedure
Select a site for the study and hammer the nails on the site without harming the vegetation.
Fix four nails in the form of a square.
Each end of the nail is tied with the help of a thread making a 1m*1m quadrant.
Nine more similar quadrants are made at the site of the study.
The number of individuals of the species A present in the first quadrant is counted and the data is recorded in the table.
The number of individuals of species A in other quadrants is also counted and the data is recorded in the table.
Similarly, count the number of individuals of species B and C present in all the quadrants and record the data in the table.
The density of the plant population is then calculated by the following equation:
Density=Totalnumberofindividualsofthespeciesinallsamplingunits(S)Totalnumberofsamplingunitsstudied(Q)
D = S/Q
Explanation:
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