Use of Winter Dens by Porcupines, Erethizon dorsatum, in Wisconsin

Authors

  • Michelle Somers Wisconsin Department of Natural Resources, Sandhill Wildlife Area, Box 156, Hwy X, Babcock, Wisconsin 54413
  • Richard P. Thiel Wisconsin Department of Natural Resources, Sandhill Wildlife Area, Box 156, Hwy X, Babcock, Wisconsin 54413

DOI:

https://doi.org/10.22621/cfn.v122i1.542

Keywords:

Porcupine, Erethizon dorsatum, winter, dens, denning behavior, den-site fidelity, Wisconsin

Abstract

Porcupine (Erethizon dorsatum) dens were monitored in Sandhill Wildlife Area in central Wisconsin between 1996-1997 and 2002-2003 to determine whether they displayed fidelity. Fidelity declined between years, with a higher proportion of Porcupines displaying fidelity to a specific den within a single winter than between winters. Yearlings displayed higher fidelity to den sites than adults. Fidelity was stronger among Porcupines occupying rock vs. tree dens. Familiarity with home spaces and onset of snowfall and snowfall depth also probably influence selection of dens.

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Issue

Vol. 122 No. 1 (2008)

Section

Articles

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