Journal of Experimental Biology (2013)
How an animal receives sound may influence its use of sound. While ‘jaw hearing’ is well supported for odontocetes, work examining how sound is received across the head has been…
Studying the biosonar of bats and porpoises using multi receiver arrays
Koblitz, Jens C.
Doctoral Thesis - Eberhard Karls Universität Tübingen (2014)
Echolocation, the main sensory modality of odontocetes and microbats, has mostly been studied using single receivers. Such a recording setup is sufficient to study signal parameters like pulse interval, inter…
The source parameters of echolocation clicks from captive and free-ranging Yangtze finless porpoises (Neophocaena asiaeorientalis asiaeorientalis)
Fang, Liang; Wang, Ding; Li, Yongtao; Cheng, Zhaolong; Pine, Matthew K.; Wang, Kexiong; Li, Songhai
PLOS ONE (2015)
The clicks of Yangtze finless porpoises (Neophocaena asiaeorientalis asiaeorientalis) from 7 individuals in the tank of Baiji aquarium, 2 individuals in a netted pen at Shishou Tian-e-zhou Reserve and 4…
The acoustic world of harbor porpoises
Wahlberg, Magnus; Linnenschmidt, Meike; Madsen, Peter; Wisniewska, Danuta; Miller, Lee
Amer. Scientist (2015)
Abstract currently unavailable
Range-dependent flexibility in the acoustic field of view of echolocating porpoises (Phocoena phocoena)
Wisniewska, Danuta M; Ratcliffe, John M; Beedholm, Kristian; Christensen, Christian B; Johnson, Mark; Koblitz, Jens C; Wahlberg, Magnus; Madsen, Peter T
eLife (2015)
Toothed whales use sonar to detect, locate, and track prey. They adjust emitted sound intensity, auditory sensitivity and click rate to target range, and terminate prey pursuits with high-repetition-rate, low-intensity…
Biosonar signal propagation in the harbor porpoise’s (Phocoena phocoena) head: The role of various structures in the formation of the vertical beam
Wei, Chong; Au, Whitlow W. L.; Ketten, Darlene R.; Song, Zhongchang; Zhang, Yu
The Journal of the Acoustical Society of America (2017)
Harbor porpoises (Phocoena phocoena) use narrow band echolocation signals for detecting and locating prey and for spatial orientation. In this study, acoustic impedance values of tissues in the porpoise's head…
Directional acoustic wave manipulation by a porpoise via multiphase forehead structure
Zhang, Yu; Song, Zhongchang; Wang, Xianyan; Cao, Wenwu; Au, Whitlow W. L.
Physical Review Applied (2017)
Porpoises are small-toothed whales, and they can produce directional acoustic waves to detect and track prey with high resolution and a wide field of view. Their sound-source sizes are rather…
Hearing thresholds of a male and a female harbor porpoise (Phocoena phocoena)
Kastelein, Ronald A.; Helder-Hoek, Lean; Van de Voorde, Shirley
The Journal of the Acoustical Society of America (2017)
To study intra-species variability in audiograms, the hearing sensitivity of a six-year-old female and a three-year-old male harbor porpoise was measured by using a standard psycho-acoustic technique under low ambient…
Click reception in the harbor porpoise (Phocoena phocoena): Effects of electrode and contact transducer location on the auditory brainstem response
Mulsow, Jason; Finneran, James J.; Houser, Dorian S.; Nordstrom, Chad A.; Barrett-Lennard, Lance G.; Burkard, Robert F.
The Journal of the Acoustical Society of America (2018)
Unlike terrestrial mammals that have unambiguous aerial sound transmission pathways via the outer ear and tympanum, sound reception pathways in most odontocetes are not well understood. Recent studies have used…
Context-dependent biosonar adjustments during active target approaches in echolocating harbour porpoises
Ladegaard, Michael; Madsen, Peter Teglberg
The Journal of Experimental Biology (2019)
Echolocating mammals generally target individual prey items by transitioning through the biosonar phases of search (slow-rate, high-amplitude outputs), approach (gradually increasing rate and decreasing output amplitude) and buzzing (high-rate, low-amplitude…