A frame quadrat can be used to sample populations living in a habitat.If individual plants can be seen clearly, the number of individuals in a m2 is counted. This gives the density per square metre.If individual members of a species are difficult to count like grass or moss the number of small squares in the quadrat which contain the species is counted. This is then converted to a percentage and this is called the frequency of cover.
Alternatively, percentage cover can be used. This is a faster method, especially when a species is abundant or difficult to count.A number of different samples are taken and the mean is calculated. Multiply the mean per square metre by the total area.
Alternatively, percentage cover can be used. This is a faster method, especially when a species is abundant or difficult to count.A number of different samples are taken and the mean is calculated. Multiply the mean per square metre by the total area.