Field investigations

It is important to estimate the number of organisms in a population to better understand the relationships in a community. This information is useful for monitoring the impact of conservation projects that aim to conserve endangered species or habitats. It is almost always impossible to count all of the organisms in a population. Scientists look at a small section of a population to draw conclusions about the rest of the population. This process is called sampling and the area or part of population looked at is called a sample.