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deer–vehicle collision, human–wildlife confl ict, Odocoileus virginianus, regression modeling, South Dakota, white-tailed deer
White-tailed deer (Odocoileus virginianus) mortalities (n = 4,433) caused by collisions with automobiles during 2003 were modeled in 35 counties in eastern South Dakota. Seventeen independent variables and 5 independent variable interactions were evaluated to explain deer mortalities. A negative binomial regression model (Ln Y = 1.25 – 0.12 [percentage tree coverage] + 0.0002 [county area] + 5.39 [county hunter success rate] + 0.0023 [vehicle proxy 96–104 km/hr roads], model deviance = 33.43, χ2 = 27.53, df = 27) was chosen using a combination of a priori model selection and AICc. Management options include use of the model to predict road mortalities and to increase the number of hunting licenses, which could result in fewer DVCs.
John H. Berryman Institute, Utah State University
Copyright © 2008 Jack H. Berryman Institute at Utah State University. Posted with permission.
Grovenburg, Troy W.; Jenks, Jonathan A.; Klaver, Robert W.; Monteith, Kevin L.; Galster, Dwight H.; Schauer, Ron J.; Morlock, Wilbert M.; and Delger, Joshua A., "Factors Affecting Road Mortality of Whitetailed Deer in Eastern South Dakota" (2008). Natural Resource Management Faculty Publications. 176.