Dr. Elizabeth A. Marschall

Aquatic Ecology Laboratory
232 Research Center
1314 Kinnear Road
Columbus, Ohio 43212-1156
phone: (614) 292-1613
FAX: (614) 292-0181

marschall.2 "at" osu.edu.

Dr. Elizabeth Marschall

Home page
Research on reproductive allocation
Research on animal movements and their implications
Graduate Students
Courses
Download full C.V.

The goal of our research is to identify processes that can explain patterns in nature. In general, we achieve this through the use of simple mathematical and simulation models. Our approach has been to ask similar questions in a variety of ecological systems rather than to ask a variety of questions in one intensively studied system. In recent years, this approach has blended nicely with a graduate program that emphasizes a strong empirical foundation to the development and use of models to solve a variety of problems in ecology. It is the combination of empirical and modeling approaches that I believe is most effective: we use empirical experiments to set some bounds on the infinite possibilities of models and we use models to more precisely and completely explore patterns of cause and effect that are not feasible to manipulate empirically.

Education

The Ohio State University, B.S. in Natural Resources, cum laude, 1979.

The Ohio State University, M.S. in Zoology, 1984.

North Carolina State University, Ph.D. in Zoology (Biomathematics minor), 1991.

Professional Experience

1985 - 1991. Graduate Fellow, Research Assistant, and Teaching Assistant in Zoology at North Carolina State University.

1992. Postdoctoral Researcher, COMPMECH, Electric Power Research Institute. Coordinator of the Salmonid Key Species Project.

1992 - 1999. Department of Evolution, Ecology, and Organismal Biology (formerly Zoology), The Ohio State University, Assistant Professor.

1999 - present. Department of Evolution, Ecology, and Organismal Biology, The Ohio State University, Associate Professor.

Selected Publications

Miller, T.J., L.B. Crowder, J.A. Rice, and E.A. Marschall. 1988. Larval size and recruitment mechanisms in fishes: toward a conceptual framework. Canadian Journal Fisheries and Aquatic Sciences 45:1657-1670.

DeAngelis, D.L, K.A. Rose, L.B. Crowder, E.A. Marschall, and D. Lika. 1993. Fish cohort dynamics: application of complementary modeling approaches. The American Naturalist 142:604-622.

Marschall, E.A. and L.B. Crowder. 1995. Density-dependent survival as a function of size in juvenile salmonids in streams. Canadian Journal of Fisheries and Aquatic Sciences 52:136-140. Erratum: volume 52:2304.

Marschall, E.A. and L.B. Crowder. 1996. Assessing population responses to multiple anthropogenic effects: A case study with brook trout. Ecological Applications 6:152-167.

Garvey, J.E., E.A. Marschall, and R.A. Wright. 1998. From starcharts to stoneflies: detecting relationships in continuous bivariate data. Ecology 79:442-447.

Mion, J.B., R.A. Stein, and E.A. Marschall. 1998. River discharge drives survival of larval walleye. Ecological Applications 8:88-103.

Marschall, E.A., D.A. Roff, T.P. Quinn, J.A. Hutchings, N.B. Metcalfe, T.A. Bakke, R.L. Saunders, and L. Poff. 1998. A framework for understanding Atlantic salmon life history. Canadian Journal of Fisheries and Aquatic Sciences 55(Supplement 1):48-55.

Kershner, M. W., D. M. Schael, R. L. Knight, R. A Stein, and E. A. Marschall. 1999. Modeling sources of variation for growth and predatory demand of Lake Erie walleye, 1986-1995. Canadian Journal of Fisheries and Aquatic Sciences 56:527-438.

Mauck, R. A., E. A. Marschall, and P. G. Parker. 1999. Interaction of adult survival and uncertainty of paternity in parental care decisions. The American Naturalist 154:99-109.

Martinez, F.A. and E. A. Marschall. 1999. A dynamic model of group-size choice: optimal decisions lead to group-size variability. Behavioral Ecology 10:572-577.

Bunnell, D. B. and E. A. Marschall. 2003. Optimal energy allocation to ovaries after spawning. Evolutionary Ecology Research 5: 439­457.

Garvey, J. E. and E. A. Marschall. 2003. Understanding latitudinal trends in fish body size through models of optimal seasonal energy allocation. Canadian Journal of Fisheries and Aquatic Sciences 60: 938-948.

Yoder, J. A, E. A. Marschall, and D. A. Swanson. 2004. The cost of dispersal: predation as a function of movement and site familiarity in ruffed grouse. Behavioral Ecology15:469-476.

Steinhart, G. B., E. A. Marschall, and R. A. Stein. 2004. Round goby predation on smallmouth bass offspring in nests during experimental catch-and-release angling. Transactions of the American Fisheries Society 133: 121-131.

Steinhart, G. B, R. A. Stein, and E. A. Marschall. 2004. High growth rate of young-of-year smallmouth bass in Lake Erie: a benefit of round goby invasion? Journal of Great Lakes Research 30(3): 381-389.

Asoh, K., T. Yoshikawa, R. Kosaki, and E. A. Marschall. 2004. Damage to cauliflower coral by monofilament fishing lines in Hawaii. Conservation Biology 18: 1645-.

Steinhart, G. B., M.E. Sandrene, S. Weaver, R. A. Stein, and E. A. Marschall. 2005. Parental care for a nest-guarding fish increases in response to an exotic, hyper-abundant nest predator. Behavioral Ecology 16:427-434.

Steinhart, G.B., N.J. Leonard, R. A. Stein, and E. A. Marschall. In press. Effects of storms, anglers, and predators on smallmouth bass nest success. Canadian Journal of Fisheries and Aquatic Sciences.

Current Grants

Quantifying how parental attributes influence characteristics of early life history stages of Ohio stocks of Lake Erie walleye. Ohio Division of Wildlife, with R. A. Stein and K. Dabrowski, 2002-2006.

Chemical composition and ring formation of percid otoliths: Effects of elemental concentration and temperature. NOAA Interjurisdictional Fisheries Act, 2004-2005.

Assessing the potential for differential contributions of spawning stocks to Lake Erie yellow perch populations. Ohio Division of Wildlife 2004-2006.

Effect of temperature and elemental concentration on the chemical composition of juvenile percid otoliths. Lake Erie Protection Fund 2004-2006.