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Mark L. Wildhaber, Ph.D.

Adjunct Assistant Professor
Fisheries and Wildlife

Research Ecologist
U.S. Geological Survey
Columbia Environmental Science Center


  • Ph.D., 1989, North Carolina State University
  • M.S., 1985, Texas A&M University
  • B.S., 1981, Southeast Missouri State University


  • Quantitative and Behavioral Ecology, Endangered Fishes, Reproductive Ecology, Habitat Choice Behavior, Individual-Base, Spatially-Explicit Modelling of Habitat Choice Behavior, Bioenergetics and Population Forecasting Modeling, Population Monitoring and Experiment Designs, and Bayesian and Non-Bayesian Approaches to Analyzing Fisheries Data.

Research Summary

  • Wildhaber's research focuses on three principal areas: 1) reproductive ecology of threatened and endangered riverine fish species; 2) determination of how natural and anthropogenic environmental factors affect habitat choice, reproductive behavior, and population dynamics of fish and aquatic invertebrate communities; and 3) development of forecasting models for fish populations and aquatic communities and ecosystems.

Selected Publications

  • Witte, C., M. Wildhaber, and D. Noltie. 200-.
    Substrate preference of breeding Topeka shiners (Notropis topeka) in the absence of sunfish (Lepomis sp.). Ecology of Freshwater Fishes (in press).
  • Wildhaber, M.L. 200-. Foraging behavior. In: Encyclopedia of Applied Animal Behavior (in press).Wildhaber, M.L. 200-.
    Optimality. In: Encyclopedia of Applied Animal Behavior (in press).
  • Holan, S., G. Davis, M.L. Wildhaber, A J. DeLonay, D.M. Papoulias. 2009.
    Hierarchical Bayesian Markov switching models with application to predicting spawning success of shovelnose sturgeon. Journal of the Royal Statistical Society: Series C (Applied Statistics) 58:1-18.
  • Wildhaber, M.L. 2008.
    Neosho Madtom: A Small Fish with Complex Problems. U.S. Fish and Wildlife Service Endangered Species Bulletin, Volume 33 (3).
  • Arab,A., M.L. Wildhaber, C.K. Wikle, C.N. Stoner. 2008.
    Modelling catch per unit area (CPUA) using a Bayesian zero-inflated model with application to channel catfish and shovelnose sturgeon in the Missouri River. North American Journal of Fisheries Management 28:1044-1058.
  • Wildhaber, M.L., A.J. DeLonay, D.M. Papoulias, D.L. Galat, R.B. Jacobson, D.G. Simpkins, P.J. Braaten, C.E. Korschegen, and M.J. Mac. 2007.
    A conceptual life-history model for pallid and shovelnose sturgeon. U.S. Geological Survey Circular 1315 p.18.
  • Bryan, J.L., Wildhaber, M.L., Papoulias, D.M., DeLonay, A.J., Tillitt, D.E., and Annis, M.L., 2007.
    Estimation of gonad volume, fecundity, and reproductive stage of shovelnose sturgeon using sonography and endoscopy with application to the endangered pallid sturgeon. Journal of Applied Ichthyology 23, 411-419.
  • DeLonay, A.J., Papoulias, D.M., Wildhaber, M.L.,  Annis, M L., Bryan, J.L., Griffith, S.A., Holan, S.H.,  and Tillitt, D.E., 2007.
    Use of behavioral and physiological indicators to evaluate Scaphirhynchus sturgeon spawning success. Journal of Applied Ichthyology 23, 428-435.
  • Wildhaber, M.L., Papoulias, D.M., DeLonay, A.J.,  Tillitt, D.E., Bryan, J.L., and Annis M.L., 2007.
    Physical and hormonal examination of Missouri River shovelnose sturgeon reproductive stage: a reference guide. Journal of Applied Ichthyology 23, 382-401.
  • Bajer, P.G., and M.L. Wildhaber. 2007.
    Population viability analysis of Lower Missouri River shovelnose sturgeon with initial application to the pallid sturgeon. Journal of Applied Ichthyology 23:457-464.
  • Wildhaber, M.L. 2007.
    Model-Facilitated Recovery of Endangered Fish Populations: Joint Application of Behavioral, Individual-Based, Population, Community and Physicochemical, Spatially-Explicit Models. In: Anne Frondorf, editor, Proceedings of the First All-USGS Modeling Conference. USGS Scientific Investigations Report 2006-5308.
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