Estimating Population Size Using Capture and Recapture: A Gypsy Moth Study Including Simulations

In this lab students will learn the principles of the capture/recapture method used to estimate a population. They will perform a simple population study using capture/mark/release/recapture data. Three different data collection methods can be used: field study with gypsy moth larvae (caterpillars), a hands-on simulation, or computer-generated sample data. Students will discover that population estimates are necessary for both monitoring the spread of the gypsy moth and implementing effective control measures in infested areas. The method used in this exercise is appropriate for population estimates of the destructive larval (caterpillar) stage. This activity has an accompanying teacher site with hints and more information. There are also links to several other sites with more information Educational levels: High school, Middle school