Dr. Lauren Schroeder
Evolution and Ecology
B.S. St. Cloud State
M.S. University of South Dakota
Ph.D. University of South Dakota
Plants have evolved multifarious mechanisms for reducing damage from herbivorous insects. Many of these defenses involve nutrition, toxins, and digestive inhibitors. One of my research interest is identifying and determining the effectiveness of nutritional defense mechanisms of plants against insect herbivores. Most of my research has been with determining energy and nutrient budgets as affected by leaf properties for tree leaf feeding lepidoptera larvae.
A second area of research interest is population dynamics of hydra. Hydra populations undergo extreme, but regular cycles of abundance. Although there are a number of factors influencing abundance, predation, parasitism, migration, food supply it appears that food limitation is the primary factor that affects changes in hydra abundance. However, food limitation is affected by non-intuitive factors of temperature affects on prey size, and on hydra food utilization efficiencies.
Sabol, B., T.M.Kerr, L.A. Schroeder. 1996. Captopril stability in aqueous solutions. U.S. Pharmacist. May 1996.
Schroeder, L. 1986. Changes in tree leaf quality and growth performance of lepidopteran larvae. Ecology. 67:1628-1636.
Malmer, M. and L. Schroeder. 1993. Amino acid analysis by high performance liquid chromatography with methanesulfonic acid hydrolysis and 9-fluorenylmethylchloroformate derivitazation. J. Chromatography, 514:227-239.
Schroeder, L. and J. Lawson. 1992. Temperature effects on the growth and dry matter budgets of Malacosoma americanum. J. Insect. Physiol. 38:743-749.
Schroeder, L. and W. Callaghan. 1982. Effects of temperature on the energy budgets of hydra. Oecologia. 53:238-244.