Elucidating the behavioral phenotype of Drosophila melanogaster larvae: correlations between larval foraging strategies and pupation height.

Larvae which demonstrated long trails covering a large area while feeding (rover foragers) pupated significantly higher than those covering a relatively small area and exhibiting short paths (sitter foragers). Pupation height and density of larvae per vial were positively correlated. Under the condition o f equal larval density per vial, rovers were found to pupate significantly higher than sitter larval foragers. The effect of three light regimes (constant light, constant darkness, and 12 h light followed by 12 h dark) indicated a more complex relationship between pupation height and larval foraging behavior.