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Tiger Moth Jams Bat Sonar
Review of a scientific article by:
Amy Worth, Dimitri Lamisere, Idil
Osman, Bianca St. Louis
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Background and Rational
• Bats use echolocation • Moths ultrasonic clicks
have previously been shown to alert bats and to startle • Scientists hypothesize the moths jam bat sonar
however, evidence is lacking for this so called jamming
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Hypotheses
Moth clicks function to: • Alert of warn
o "warning of unprofitability" • Startle
• Sonar interference or jamming
o diminishing a bats ability to determine the moths distance
o clicks may sound like an object that does not exist o Clicks may confuse bats
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Method
Used four batso 3 juvenile, 1 adult
16 tethered mothso with controls being moths with clicking disabled and
moths of other species that do not click Placed in a flight room equipped with high speed infrared cameras and an ultrasonic microphone
Bats were given one minute or 5 attempts for each moth Experiment lasted nine nights
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Conclusion
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Suggestions and further question
Use more bats and moths They could have tested more than 9 nights
Are there other species of bats that have the same reaction towards moths that can click ultrasonically?