Presentation 2007-08-24
Scanning technique by echolocating bats : Flight behavior and pulse direction simultaneously observed by the laboratory recording
Michihiro FUKUDA, Shizuko HIRYU, Hiroshi RIQUIMAROUX, Yoshiaki WATANABE,
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Abstract(in English) Bats and dolphins possess highly-developed biosonar system. In this study, we examined directional patterns of echolocation pulses of Japanese FM bats (Pipistrellu abramus) during flight in the laboratory, recorded with microphone array system. We discussed the relationship between the pulse direction and flight path of the bat. The result shows that change in the emitted direction of pulses preceded the transition of flight direction of the bat in the case of U-turn. In addition, we found that the bat decided the emitted direction of pulses at the distance between 1 and 2 m from the landing net according to the following flight behavior (landing or U-turn). These finding provide important information about scanning technique by echolocating bats.
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Keyword(in English) Biosonar / Pipistrellus abramus / scanning technique / horizontal directivity
Paper # US2007-34
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Committee US
Conference Date 2007/8/17(1days)
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Registration To Ultrasonics (US)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Scanning technique by echolocating bats : Flight behavior and pulse direction simultaneously observed by the laboratory recording
Sub Title (in English)
Keyword(1) Biosonar
Keyword(2) Pipistrellus abramus
Keyword(3) scanning technique
Keyword(4) horizontal directivity
1st Author's Name Michihiro FUKUDA
1st Author's Affiliation Faculty of Engineering, Doshisha University()
2nd Author's Name Shizuko HIRYU
2nd Author's Affiliation Faculty of Engineering, Doshisha University
3rd Author's Name Hiroshi RIQUIMAROUX
3rd Author's Affiliation Faculty of Engineering, Doshisha University : Bio-navigation Research Center, Doshisha University
4th Author's Name Yoshiaki WATANABE
4th Author's Affiliation Faculty of Engineering, Doshisha University : Bio-navigation Research Center, Doshisha University
Date 2007-08-24
Paper # US2007-34
Volume (vol) vol.107
Number (no) 200
Page pp.pp.-
#Pages 6
Date of Issue