The Effect of Different Foods on Mealworms ..
We performed an experiment to determine if there is a difference in the respiration rates per gram of animal of two different species of invertebrates. We tested the respiration rates of meal worms () and ground crickets (). Meal worms are not worms, but actually the larvae life stage of a beetle. They develop from eggs typically laid in a humid, dark environment, where they feed and eventually mature into beetles (Congo et al. 2002). Ground crickets live in a variety of environments and are most active at night (Lyon 1991). Upon initial observation, our crickets were more active than our meal worms, which led us to predict that if the respiration rate per gram of crickets is greater than that of meal worms, then the average CO2 output for the crickets will be greater than the mealworms because the crickets have a higher metabolic rate.
means the more the glucose is being oxidized in each mealworm
Our results indicated that the average rate of respiration per gram of cricket (mean= 67.74 ppm/min/g) was significantly greater than that of meal worms (mean= 24.35 ppm/min/g, P = 0.017). The mean rate of respiration in an empty flask was found to be significantly different in a t-test than the mean of our data collected in the presence of insects (P = 0.012), indicating that random variations in air quality and CO2 probe function did not have a noteworthy effect on our results.
To test this hypothesis, we ran nine different five-minute trials measuring the rate of respiration (ppm/min) of the organisms within a sealed flask. The first six trials alternated between samples of five pre-weighed crickets and samples of five pre-weighed meal worms. Each group of insects was chosen randomly and used only once. The final three trials recorded CO2 changes within an empty flask.