Sampling Techniques 2

Question 1

State the method for capture-recapture.

Answer 1

• Capture organisms from a sample area
• Mark individual organisms, then release them back into the community
• Later, recapture organisms in the original sample area
• Record the number of marked and unmarked individuals
• Estimate population size using relevant equation

Question 2

What is the equation for estimation of population size in capture-recapture?

Answer 2

(first sample size * second sample size) / number of recaptured individuals