9/14/2011 Echo Intensity in Echolocation in Bats (Pipistrellus - PDF document

9/14/2011 Echo Intensity in Echolocation in Bats (Pipistrellus abramus) during Flight Measured by Telemetry Microphone • Journal of Acoustical Society of America o Impact factor 1.587 Frequency and Amplitude Compensation in the Echolocation of Bats On- board Telemetry of Emitted Sounds from Free-Flying Bats: Compensation for Velocity and Distance Stabilizes Echo Frequency and Amplitude Lydia Hoffstaetter and Taylor Baird September 14th, 2011 • Journal of Comparative Physiology A BioNB 4240 o Impact Factor 2.0 Authors Echolocation Calls • Shizuko Hiryu Frequency Modulated Pulses Constant Frequency Pulses • Yu Shiori • Tatsuro Hosokawa • Hiroshi Riquimaroux • Yoshiaki Watanabe • Tomotaka Hagino Doshisha University, Kyotanabe, Japan Images from Simmons and Young, 2010 Typical Echolocation Pulse Species of Bats used in Studies Japanese Horseshoe Bat (2008) Japanese House Bat (2006) ( Rhinolophus ferrumquinum • Pipistrellus abramus ( Pipistrellus abramus) nippon) http://yokohamayomama.blogspot.com/2011/0 5/friday-field-notes-keep-your-eyes-open.html http://www.bio.bris.ac.uk/research/bats/China%20bats /rhinolophusferrumequinum.htm http://www-3.unipv.it/webcib/rhino1.au Hiryu et. al 2006 http://en.wikipedia.org/wiki/Animal_echolocation 1

9/14/2011 Doppler Shift Typical Echolocation Patterns • Rhinolophus ferrumequinum nippon http://science.howstuffworks.com/radar2.htm Hiryu, et, al 2008 Experiment Setup Experiment Setup • Telemike System o Telemetry microphone 8 M 2 M 3 M Hiryu et. al 2006 Echo Delay Echo Delay Hiryu et. al 2008 Hiryu et. al 2006 2

9/14/2011 Echo DelayE Interpulse Intervals Hiryu, et. al 2008 Hiryu et. al 2006 Amplitude Compensation Amplitude Compensation Hiryu, et. al. 2008 Hiryu, et. al. 2006 Amplitude Compensation Amplitude Compensation Amplitude Compensation Hiryu et. al 2006 Hiryu et, al. 2006 3

9/14/2011 Frequency Compensation Frequency Compensation Hiryu et. al 2008 Frequency Compensation Combined Amplitude and Frequency Hiryu et. al 2008 The U-turn Works Cited • Archive Greater horseshoe bat ( Rhinolophus ferrumequinum ). Wildscreen 2003-2011. http://www.arkive.org/greater- horseshoe-bat/rhinolophus-ferrumequinum/ • Accessed September 13th, 2011 • Background picture from: Publications Internatonal, Ltd. http://animals.howstuffworks.com/mammals/13-incredible-bat-facts.htm • Hiryu, S. Hagino, T. Riquimaroux, H. Wantanabe, Y. Echo-intensity compensation in echolocating bats (Pipistrellus abramus) during flight measured by a telemetry microphone. Journal of the Acoustical Society of America. 1747-1757 • Hiryu, S. Shiori, Y. Hosokawa, T. Riquimaroux, H. Wantanabe, Y. On Board Telemetry of Emitted Sounds from free-flying bats: Compensation for velocity and distance stabalize echo frequency. Journal of Comparative Physiology A 2008. 194: 841-851 • Information for authors found at Doshisa University, ReaD http://read.jst.go.jp/public/cs_ksh_008EventAction.do?action4=event&lang_act4=E&judge_act4=2&knkysh_name_code=60000105 21, and Research Gate http://www.researchgate.net/researcher/39310937_Shizuko_Hiryu • Riquimaroux, H. Personal Information. Doshisha University 2005. http://kenkyudb.doshisha.ac.jp/rd/search/researcher/195002/index-e.html • Simmons, Nancy Rhinolophus ferrumequinum, Greater Horseshoe Bat. Digital Morphology. http://www.digimorph.org/specimens/Rhinolophus_ferrumequinum/whole/ Accessed Sept. 13th, 2011. Hiryu et. al 2008 • Simmons, P. and Young, D. Nerve Cells and Animal Behaviour. 3rd Edition. Cambridge University Press. The Edinburgh University Building, Cambridge. 2010. 4