LIFE SCIENCE

Detailed explanation-1: -Quadrat sampling is a classic tool for the study of ecology, especially biodiversity. In general, a series of squares (quadrats) of a set size are placed in a habitat of interest and the species within those quadrats are identified and recorded.

Detailed explanation-2: -In transect surveys, students stretch a string across a piece of ground, stake each end, and count the living things that are either underneath the string or within arm’s length of it. In quadrat surveys, students map out a square piece of ground and survey the living things lying within the square.

Detailed explanation-3: -2. What size and shape should the quadrat be? In theory any shape of frame can be used but for many measurements you need to know the area of the quadrat so a square quadrat is the most popular. The size of the quadrat is usually related to the size of the plants being studied.