Use of camera traps to measure predation risk in a puma-mule deer system

  • Hernandez L
  • Laundre J
  • Gurung M
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Previous work indicated that automated camera traps may be useful in estimating predation risk among different microhabitats for mule deer ( Odocoileus hemionus ). We tested the prediction that the number of photographs taken by automated camera traps was inversely related to the amount of food left by deer in feeding boxes or giving up densities (GUDs). We positioned camera traps adjacent to standard mule deer feeding boxes placed in open and edge microhabitats of 3 forest types: Douglas-fir ( Pseudotsuga menziesii ), juniper ( Juniperus osteosperma ), and mountain mahongany ( Cercocarpus ledifolius ). We compared number of photographs taken with daily GUDs for the boxes for the 2 microhabitats. We found that GUD data of our study coincided with the previous work of lower GUDs in open versus edge microhabitats for Douglas-fir (288.61 Ò 7.1 g vs. 389.6 Ò 19.4 g; P

Author-supplied keywords

  • 3US
  • Odocoileus hemionus
  • Pseudotsuga menziesii
  • Puma concolor
  • analysis
  • camera trap
  • cougar
  • deer
  • density
  • feeding
  • food
  • forest
  • method
  • mule deer
  • photograph
  • predation
  • predation risk
  • puma
  • risk
  • trap

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  • L Hernandez

  • J W Laundre

  • M Gurung

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