Study of population density and frequency of different plant populations, by quadrat method
Practical Notebook Biology Standard XII Biology Answeres Practical Notebook Standard XII Class-12th science Click here download in PDF 8. Study of population density and frequency of different plant populations, by quadrat method. Aim: To study population density and frequency of plant population by quadrat method. Principle: All the different types of individual plants growing at a particular space or geographical area at a particular time, form (constitutes) the plant population of that area. It changes from time to time and may increase or decrease due to many different factors. The number of individuals of a species present per unit area at a given time is called population density. 6. Population density = 4. The population density (D) can be calculated as D = N / S. where N Number of individuals of a species and S- Units of space or area (no. of quadrats). MS The population density can be determined by marking quadrats of suitable size and recording the number
