This work was supported by National Science Foundation grants DUE 0736927 and DUE 0737050, the LSU College of Science, and the LSU Department of Biological Sciences. We thank Dr. Michelle Withers, Leigh Anne Howell, and Sandra Ditusa for their valuable assistance with this project. We particularly thank Drs. Christine Pfund and Jo Handelsman for providing us with the data from Pfund et al. (2009) to compare with our results.