Environmental Engineering Reference
In-Depth Information
therefore maximizing dwell time within the beam of the radar. However, although bat
activity was significantly reduced during experimental trials substantial numbers of
bats continued to forage within the beam. It is possible that only a particular combina-
tion of wavelength, pulse repetition rate, power output and target size or orientation
may provoke a reaction and further work is necessary to elucidate this relationship
further.
KEYWORDS
•
Aerial hunting
•
Electromagnetic radiation
•
Electromagnetic signal
•
Radar antenna
AUTHORS' CONTRIBUTIONS
Conceived and designed the experiments: Paul A. Racey. Performed the experiments:
Barry Nicholls. Analyzed the data: Barry Nicholls. Wrote the chapter: Barry Nicholls.
ACKNOWLEDGMENTS
We would like to thank J. French, J. D. Pye, and C. D. MacLeod for their comments on
an earlier draft of this manuscript, and Jennifer Skinner for assisting in the fieldwork.
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