Biology · Ecology

A student used the mark-recapture method to assess the population size of grasshoppers in a field. The procedure followed and the observations made are as follows: - Day 1: 40 grasshoppers were captured, marked, and released. - Day 2: 60 grasshoppers were captured, of which 4 were marked. The unmarked ones were marked, and all 60 were released. - Day 3: 50 grasshoppers were captured, of which 7 were marked. The unmarked ones were marked, and all 50 were released. - Day 4: 25 grasshoppers were captured, of which 6 were marked. Using the Lincoln-Petersen index for each recapture event, calculate the estimated population size based on the mean of the three recapture observations.