...-Irwin , C. E. and Simmons , J. A. ( 2018 ). Spike train similarity space (SSIMS) method detects effects of obstacle proximity and experience on temporal patterning of bat biosonar . Front. Behav. Neurosci. 12 , 13 . 10.3389/fnbeh.2018.00013 Amichai , E. , Blumrosen , G...

...: Measurement of the vocal compensation of Daubenton's bats to masking noise reveals that bats defend echo-to-noise ratios by increasing call amplitude but not by spectrally adjusting calls. Chiroptera Biosonar Jamming avoidance response Lombard response Acoustic interference Natur og Univers...

... targets, suggesting a clutter rejection zone much shorter than their auditory integration time, and that such clutter rejection is greatly aided by spatial filtering with their directional biosonar beam. * Author for correspondence ( chloe.e.malinka@bio.au.dk ) Competing interests The authors...

...-finding Biosonar Spatial perception Landmark-guided navigation, a strategy by which animals find their way through the environment, has been studied in a wide range of species ( Chamizo et al., 2012 ; Cheng, 1986 ; Collett et al., 1986 ; Foo et al., 2007 ; Jensen et al., 2005 ; Milgram et...

...James A. Simmons; Shizuko Hiryu; Uday Shriram ABSTRACT In complex biosonar scenes, the delay of echoes represents the spatial distribution of objects in depth. To avoid overlap of echo streams from successive broadcasts, individual echolocation sounds should only be emitted after all echoes...

... a subsequent click is produced, presumably facilitating range estimation from the delay between clicks and returning echoes. However, this click–echo–click paradigm for the dolphin biosonar is mostly based on experiments with stationary animals echolocating fixed targets at ranges below ∼120 m. Therefore, we...

... or financial interests. 11 10 2017 6 12 2017 Biosonar Acoustic signals Chiroptera Animal bioacoustics Organisms throughout the animal kingdom rely on acoustic signals for a wide range of survival behaviours, including communication, territorial defence, predator evasion...

...Kelsey N. Hom; Meike Linnenschmidt; James A. Simmons; Andrea Megela Simmons ABSTRACT Echolocating bats emit trains of intense ultrasonic biosonar pulses and listen to weaker echoes returning from objects in their environment. Identification and categorization of echoes are crucial for orientation...

...P. Arranz; S. L. DeRuiter; A. K. Stimpert; S. Neves; A. S. Friedlaender; J. A. Goldbogen; F. Visser; J. Calambokidis; B. L. Southall; P. L. Tyack ABSTRACT Early studies that categorized odontocete pulsed sounds had few means of discriminating signals used for biosonar-based foraging from those used...

... scene by echolocation in bats . Front. Behav. Neurosci.   4 , 33 . 10.3389/fnbeh.2010.00033 Nachtigall , P. E. and Schuller , G. ( 2014 ). Hearing during echolocation in whales and bats . In Biosonar , Vol. 51 (ed. A.   Surlykke , P. E.   Nachtigall , R. R.   Fay...

... of a vibroacoustic finite element model using bottlenose dolphin simulations: the dolphin biosonar beam is focused in stages . Bioacoustics   23 , 161 - 194 . 10.1080/09524622.2013.843061 DeRuiter , S. L. , Bahr , A. , Blanchet , M.-A. , Hansen , S. F. , Kristensen , J. H. , Madsen , P...

...Frants H. Jensen; Magnus Wahlberg; Kristian Beedholm; Mark Johnson; Natacha Aguilar de Soto; Peter T. Madsen ABSTRACT Echolocating animals exercise an extensive control over the spectral and temporal properties of their biosonar signals to facilitate perception of their actively generated auditory...

...James A. Simmons Big brown bats emit biosonar sounds and perceive their surroundings from the delays of echoes received by the ears. Broadcasts are frequency modulated (FM) and contain two prominent harmonics sweeping from 50 to 25 kHz (FM1) and from 100 to 50 kHz (FM2). Individual frequencies...

.... COMPETING INTERESTS No competing interests declared. 23 5 2013 30 7 2013 © 2013. Published by The Company of Biologists Ltd 2013 biosonar high-frequency hearing marine mammals auditory evoked potential Extensive studies have described hearing loss from congenital...

..., 2007 ; Siemers and Schnitzler, 2000 ) because it is crucial for understanding the range of biosonar, the reaction and adaptation to different types of habitat, as well as the relative detection distances when interacting with eared and non-eared prey ( Goerlitz et al., 2010 ; Miller and Surlykke...

... AEPs were dependent on the target distances. The echo-related AEP response amplitudes increased at further target distances, demonstrating an overcompensation of echo attenuation with target distance in the echo-perception system of the dolphin biosonar. Measurement and analysis of outgoing click...

...Mary E. Bates; James A. Simmons SUMMARY Echolocating big brown bats emit ultrasonic frequency-modulated (FM) biosonar sounds containing two prominent downward-sweeping harmonics (FM1 and FM2) and perceive target distance from echo delay. In naturally occurring echoes, FM1 and FM2 are delayed...

... and buzzing during prey capture. * Author for correspondence( stacy_deruiter@yahoo.com ) 30 6 2009 2009 echolocation porpoise foraging buzz biosonar Phocoena Echolocating animals can gather information about their environment by emitting sound pulses, then processing...

...F. H. Jensen; L. Bejder; M. Wahlberg; P. T. Madsen SUMMARY Toothed whales use echolocation to locate and track prey. Most knowledge of toothed whale echolocation stems from studies on trained animals, and little is known about how toothed whales regulate and use their biosonar systems in the wild...

...; random effect (task):variance=3.0×10 –11 ;residual=6.1×10 –2 ; Table 1 ]. * Author for correspondence (e-mail: ursula.verfuss@meeresmuseum.de ) 11 12 2008 2009 harbour porpoise Phocoena phocoena biosonar echolocation foraging behaviour signal pattern Biosonar...