Problem
A biology student estimates a population of snails in a local field using randomly selected eight 1.0 m2 quadrats in a 10 m x 10 m site. The numbers of slugs in each quadrat were 3, 9, 4, 2, 3, 7, 5 and 1.
1. Estimate the population density of slugs in this study site.
2. Estimate the total population of slugs in this study site.
3. What assumptions do you make when using the quadrat sampling technique? State at least two assumptions and explain why they are important.