Results 31 to 40 of about 1,345 (186)
Functional Analyses of Peripheral Auditory System Adaptations for Echolocation in Air vs. Water
Frontiers in Ecology and Evolution, 2021 The similarity of acoustic tasks performed by odontocete (toothed whale) and microchiropteran (insectivorous bat) biosonar suggests they may have common ultrasonic signal reception and processing mechanisms.
Darlene R. Ketten +7 more
doaj +1 more source
Oilbirds produce echolocation signals beyond their best hearing range and adjust signal design to natural light conditions [PDF]
Royal Society Open Science, 2017 Oilbirds are active at night, foraging for fruits using keen olfaction and extremely light-sensitive eyes, and echolocate as they leave and return to their cavernous roosts. We recorded the echolocation behaviour of wild oilbirds using a multi-microphone
Signe Brinkløv +2 more
doaj +1 more source
eLife, 2021 How fast the brain and muscles can respond to information about prey location constrains visual and echolocating predators in similar ways.
Alexander J Werth, Joseph E Corbett
doaj +1 more source
Neural Processing of Naturalistic Echolocation Signals in Bats
Frontiers in Neural Circuits, 2022 Echolocation behavior, a navigation strategy based on acoustic signals, allows scientists to explore neural processing of behaviorally relevant stimuli.
M. Jerome Beetz, Julio C. Hechavarría
doaj +1 more source
Biosonar behaviour of free-ranging porpoises [PDF]
Proceedings of the Royal Society B: Biological Sciences, 2005 Detecting objects in their paths is a fundamental perceptional function of moving organisms. Potential risks and rewards, such as prey, predators, conspecifics or non-biological obstacles, must be detected so that an animal can modify its behaviour accordingly.
Tomonari, Akamatsu +3 more
openaire +2 more sources
Biosonar performance of foraging beaked whales (Mesoplodon densirostris) [PDF]
, 2005 Toothed whales (Cetacea, odontoceti) emit sound pulses to probe their surroundings by active echolocation. Noninvasive, acoustic Dtags were placed on deep-diving Blainville's beaked whales (Mesoplodon densirostris) to record their ultrasonic clicks and ...
Madsen, P T +4 more
core +1 more source
Biosonar emission characteristics and beam control of odontocetes
, 2020 Odontocetes have evolved for millions of years to own a unique echolocation system. The exceptional performance of odontocetes echolocation system can provide reference to artificial sonar systems, acoustic metamaterials and sound control designs ...
Chong Wei (23290120) +4 more
core +2 more sources
The long-range echo scene of the sperm whale biosonar. [PDF]
Biol Lett, 2020 Sperm whales use their gigantic nose to produce the most powerful sounds in the animal kingdom, presumably to echolocate deep-sea prey at long ranges and possibly to debilitate prey.
Tønnesen P +3 more
europepmc +2 more sources
Frontiers in Behavioral Neuroscience, 2018 Bats emit biosonar pulses in complex temporal patterns that change to accommodate dynamic surroundings. Efforts to quantify these patterns have included analyses of inter-pulse intervals, sonar sound groups, and changes in individual signal parameters ...
Alyssa W. Accomando +3 more
doaj +1 more source
A corrected wideband ambiguity function for robust biosonar strategy analysis
The wideband ambiguity function (WAF) is a foundational tool for analyzing sonar signals, as it jointly characterizes time delay and Doppler-induced time stretching. However, when applied to nonstationary biological signals, this function is sensitive to
Nicolas Deloustal +2 more
core +5 more sources