I would like to thank T. Taylor for his help and guidance during the development of this project, which was part of my master's thesis in the Department of Ecology and Evolutionary Biology at the University of Kansas, Lawrence, KS. Also, I thank. S. Klavins, T. Echelle, A. Echelle, and B. Jacobs, for helpful suggestions regarding the manuscript. Many thanks also to all my collegues in TNT's lab at KU: D. Kellog, M. Krings, J. Mellard, R. Serbert, and E. Taylor. I am also indebted to my best critic L. Echelle to whom I dedicate this paper.