Effects of acoustic deterrents on foraging bats

Research Note NRS-129
By: , and 

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Abstract

Significant bat mortality events associated with wind energy expansion, particularly in the Appalachians, have highlighted the need for development of possible mitigation practices to reduce or prevent strike mortality. Other than increasing turbine cut-in speed, acoustic deterrents probably hold the greatest promise for reducing bat mortality. However, acoustic deterrent effectiveness and practicality has not been experimentally examined and is limited to site-specific case studies. Accordingly, we used a crossover experimental design with prior control period to show that bat activity was reduced 17.1 percent by the deployment of ultrasonic deterrents placed around gauged watershed weir ponds on the Fernow Experimental Forest in West Virginia. We caution that while our results should not be extrapolated to the scope of a typical wind energy production facility, the results warrant further research on the use of acoustic deterrents to reduce bat fatalities.

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Additional publication details

Publication type Report
Publication Subtype Federal Government Series
Title Effects of acoustic deterrents on foraging bats
Series title Research Note
Series number NRS-129
DOI 10.2737/NRS-RN-129
Year Published 2012
Language English
Publisher U.S. Department of Agriculture, Forest Service
Contributing office(s) Coop Res Unit Leetown
Description 5 p.
Country United States
State West Virginia
Other Geospatial Fernow Experimental Forest