Glenn D. DelGiudiceGlenn D. DelGiudice

Adjunct Associate Professor, Department of Fisheries, Wildlife and Conservation Biology
Deer Project Leader, Forest Wildlife Research Group, Minnesota Department of Natural Resources
Mailing address: MN DNR, 1201 E. Highway 2, Grand Rapids, MN 55744
Phone: 218-327-4131 or 651-296-0702
Fax: 218-999-7944
Email: glenn.delgiudice@dnr.state.mn.us
Ph. D. University of Minnesota

Fields of Interest

Nutritional and physiological ecology of large mammals, with a focus on extrinsic and intrinsic factors affecting population performance.

Research

My research has concentrated on examining nutrition as a mechanistic thread between environmental variation (e.g., winter severity, habitat composition) and population variation of large ungulates, as well as of wolves. In an effort to expand the biologist's and manager's understanding of habitat requirements and enhance conservation efforts, I have employed experimental and natural comparison designs, often in long-term studies, to examine the effects of seasonal weather conditions, habitat alteration, nutritional restriction and recovery on physiological indices, body condition, food habits, movements, habitat use, age-specific survival and reproduction. Specifically, my collaborative research has involved white-tailed deer and wolves in northern Minnesota; elk and bison in Yellowstone National Park, before and after the historic fires of 1988; moose on Isle Royale and in northern Minnesota; and elk and mule deer in Arizona.

Selected Publications

  • DelGiudice, G. D., K. R. McCaffery, D. E. Beyer, Jr., and M. E. Nelson.  2009. 
    Prey of wolves in the Great Lakes region. Pages 155-173 in A. P. Wydeven,
    T. R. Van Deelen, and E. J. Heske,  editors.  Recovery of gray wolves in the Great Lakes Region of the United States:  an endangered species success story.  Springer.  New York, New York.
  • Fieberg, J., and G. D. DelGiudice.  2009. What time is it?  Importance of time origin and scale in of extended proportional hazards models.  Ecology 90:1687-1697.
  • Carstensen, M., G. D. DelGiudice, B. A. Sampson, and D. W. Kuehn.  2009.  Survival, birth characteristics, and cause-specific mortality of white-tailed deer neonates.  Journal of Wildlife Management 73:175-183.
  • DelGiudice, G. D., M. S. Lenarz, and M. Carstensen Powell.  2007.  Age-specific fertility and fecundity in northern free-ranging white-tailed deer:  evidence for reproductive senescence?  Journal of Mammalogy 88:427-435.
  • DelGiuduce, G. D., J. Fieberg, M. R. Riggs, M. Carstensen Powell, and W. Pan.  2006.  A long-term age-specific survival analysis of female white-tailed deer. Journal of Wildlife Management 70:1556-1568.
  • DelGiudice, G. D., B. A. Sampson, D. W. Kuehn, M. Carstensen Powell, and J. Fieberg. 2005.   Understanding margins of safe capture, chemical immobilization, and handling of free-ranging white-tailed deer. Wildlife Society Bulletin 33:677-687.