Investigation

of Acoustic Sensors to Detect

Richard MankinAubrey MooreRobert BourgeoisRoland Quitugua

Coconut Rhinoceros Beetle in Guam

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Grubs in a Rearing Box

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Expanded View of Grub Signals Detected in Rearing Box

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Periods of Stridulation by Grubs are noted at 1 (red) and 5 (blue)

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Expanded View of a Grub Stridulation Event

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Further Expansion of a Grub Stridulation Event

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Signals Recorded from Grubs in Decaying Log near Oka Point

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10-s Period of Adult Beetle Sounds Recorded in Small Coconut Palm

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Background noise

Adult Beetle Stridulation in Laboratory

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Expanded View of Adult Stridulations

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Expanded View of Single Stridulation by an Adult CRB

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15-s Period of Adult CRB Activity in Small Coconut Palm

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30-s Period of Distinctive Adult CRB activity in Coconut Palm

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