Rhinoceros Beetle Investigation of Coconut in Guam Acoustic Sensors

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Presentation transcript:

Rhinoceros Beetle Investigation of Coconut in Guam Acoustic Sensors to Detect Coconut Rhinoceros Beetle in Guam Richard Mankin Aubrey Moore Robert Bourgeois Roland Quitugua

Grubs in a Rearing Box Relative Amplitude 3 Frequency (kHz) 2 1 Take09, larvae in rearing box in laboratory Frequency (kHz) 2 1 Time (s)

Expanded View of Grub Signals Detected in Rearing Box Relative Amplitude 3 Expanded view of take09 showing several clicks (recorded from grubs in laboratory) Frequency (kHz) 2 1 Time (s)

Periods of Stridulation by Grubs are noted at 1 (red) and 5 (blue) 2 3 Frequency (Hz) Relative Amplitude Take11. Sections marked 1 and 5 are periods of larval stridulation Time (minutes : seconds)

Expanded View of a Grub Stridulation Event 1 2 3 Frequency (Hz) Relative Amplitude Expanded view of grub stridulation in take11 (recorded in laboratory) Time (minutes : seconds)

Further Expansion of a Grub Stridulation Event 1 2 3 Frequency (Hz) Relative Amplitude Further expanded view of stridulation in take11 (recorded in laboratory) Time (minutes : seconds)

Signals Recorded from Grubs in Decaying Log near Oka Point Relative Amplitude 3 Section of sounds from take12 with three grubs recorded in field Frequency (Hz) 2 1 Stridulations Time (s)

10-s Period of Adult Beetle Sounds Recorded in Small Coconut Palm Background noise 1 2 3 Frequency (Hz) Relative Amplitude Time (s)

Adult Beetle Stridulation in Laboratory 1 2 3 Frequency (Hz) Relative Amplitude Time (s) Stridulations

Expanded View of Adult Stridulations 1 2 3 Frequency (Hz) Relative Amplitude Time (s)

Expanded View of Single Stridulation by an Adult CRB 1 2 3 Frequency (Hz) Relative Amplitude Take97 30-60s Time (s)

15-s Period of Adult CRB Activity in Small Coconut Palm 2 3 Frequency (Hz) Relative Amplitude Time (s)

30-s Period of Distinctive Adult CRB activity in Coconut Palm 1 2 3 Frequency (Hz) Relative Amplitude take86adultactivitywithscrapes Time (s)