Richness and insect density over time in treeholes with and without predation. a. Species richness over the three year study period in treeholes with and without T. rutilus. b. Total insect (not including T. rutilus) density over the three year study period in treeholes with and without T. rutilus. Means are based on variable sample sizes, depending on how many of the 29 treeholes had T. rutilus and how many did not. If only early instar (instars I and II) T. rutilus were found, the predator was not counted as being present for the purposes of calculating these means. Closed circles are means without T. rutilus present, and open circles are means with T. rutilus present. Error bars represent 1 SE.
Paradise et al. BMC Ecology 2008 8:22 doi:10.1186/1472-6785-8-22