Comparing diets of adult and larval bluegill to look for evidence of competition for zooplankton prey or evidence for adult consumption of larval predators. Examining how larval feeding behaviors may be influenced by the presence of adult bluegill or other fish. J.E. Rettig, G.G. Mittelbach, J.L. Valiulis, and S.R. Schaack. Rettig, J.E. 1998. Rettig, J.E., R.C. Fuller, A.L. Corbett, and T. Getty.
Fluctuating asymmetry indicates levels of competition in an even-aged poplar clone.
A.M. Turner, D.J. Hall, J.E. Rettig, and C.W. Osenberg. Habitat selection and diet coposition in Arizona river otters, Lutra canadensis. Microhabitat selection by northern cricket frogs, Acris crepitans, along a west-central Missouri creek. Dilts, J., G. Smith, J. Rettig, A. Strautman, P. Gabrielson, and D. Heruth. Creating a student-driven learning environment.