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Rhinoceros Beetle Investigation of Coconut in Guam Acoustic Sensors

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Presentation on theme: "Rhinoceros Beetle Investigation of Coconut in Guam Acoustic Sensors"— Presentation transcript:

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

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8 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)

9 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)

10 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)

11 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)

12 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)

13 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)

14 10-s Period of Adult Beetle Sounds Recorded in Small Coconut Palm
Background noise 1 2 3 Frequency (Hz) Relative Amplitude Time (s)

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

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

17 Expanded View of Single Stridulation by an Adult CRB
1 2 3 Frequency (Hz) Relative Amplitude Take s Time (s)

18 15-s Period of Adult CRB Activity in Small Coconut Palm
2 3 Frequency (Hz) Relative Amplitude Time (s)

19 30-s Period of Distinctive Adult CRB activity in Coconut Palm
1 2 3 Frequency (Hz) Relative Amplitude take86adultactivitywithscrapes Time (s)

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