Acknowledgements
We would like to thank R. Puckett for help with field sites and comments on an earlier draft of this manuscript, B. Reid and W. Welch for providing access to Coulter Field, J. Underwood, M. Arceneaux and C. Webb for their help sampling, P. Lenhart, L. Garcia, W. Sconiers, E. Bockoven, P. Aranda, B. Elkins, J. Hewlett, and C. Lin for helping to maintain the fire ant colonies and overall support for the project, and J. Light, G. Sword, P. Nonacs, and two anonymous reviewers for helpful comments on an earlier draft of this manuscript. This material is based upon work supported by the Texas A&M AgriLife Research Invasive Ant Research and Management Grant, the Texas Ecolab Program, a fellowship from Texas A&M University, and the National Science Foundation Graduate Research Fellowship under Grant No. DGE 1252521. It was also supported by the Sid Kyle Endowment in the Department of Ecosystem Science and Management at Texas A&M University and the Urban Entomology Endowment at Texas A&M University. Any opinion, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.