Effects of simulated jet aircraft noise on heart rate and behavior of desert ungulates

Mara E. Weisenberger, Paul R. Krausman, Mark C. Wallace, Donald W. De Young, O. Eugene Maughan

Research output: Contribution to journalArticlepeer-review

72 Scopus citations

Abstract

Many landscapes underlying military designated air spaces have been established as national parks, wildlife refuges, or wilderness areas. The juxtaposition of public, wilderness, and military uses has led to questions of compatibility between aircraft and wildlife. We evaluated the effects of simulated low-altitude jet aircraft noise on the behavior and heart rate of captive desert mule deer (Odocoileus hemionus crooki) (n = 6) and mountain sheep (Ovis canadensis mexicana) (n = 5). We measured heart rate and behavior related to the number of simulated overflights per day (range = 1- 7) and noise levels (range = 92-112 decibels [dB]) that animals were exposed to. We compared heart rates and behavior of mountain sheep and desert mule deer before, during, and after simulated overflights (n = 112 overflights/season) during 3 seasons. The heart rates of ungulates increased related to dB levels during simulated overflights (P ≤ 005), but they returned to pre-disturbance levels in 60-180 seconds. Animal behavior also changed during overflights but returned to pre-disturbance conditions in <252 seconds (P ≤ 0.005). All animal responses decreased with increased exposure suggesting that they habituated to simulated sound levels of low- altitude aircraft.

Original languageEnglish
Pages (from-to)52-61
Number of pages10
JournalJournal of Wildlife Management
Volume60
Issue number1
DOIs
StatePublished - Jan 1996

Keywords

  • Odocoileus hemionus
  • Ovis canadensis
  • aircraft
  • behavior
  • bighorn
  • desert mule deer
  • heart rate
  • mountain sheep
  • noise

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