Size constancy in bat biosonar? Perceptual interaction of object aperture and distance. [PDF]
PLoS ONE, 2013 Perception and encoding of object size is an important feature of sensory systems. In the visual system object size is encoded by the visual angle (visual aperture) on the retina, but the aperture depends on the distance of the object. As object distance
Melina Heinrich, Lutz Wiegrebe
doaj +9 more sources
Functional convergence in bat and toothed whale biosonars [PDF]
Physiology, 2013 Echolocating bats and toothed whales hunt and navigate by emission of sound pulses and analysis of returning echoes to form a self-generated auditory scene.
Madsen, P T, Surlykke, Annemarie
core +5 more sources
Delayed response and biosonar perception explain movement coordination in trawling bats. [PDF]
PLoS Computational Biology, 2015 Animal coordinated movement interactions are commonly explained by assuming unspecified social forces of attraction, repulsion and alignment with parameters drawn from observed movement data.
Luca Giuggioli +2 more
doaj +5 more sources
Development of the hyolaryngeal architecture in horseshoe bats: insights into the evolution of the pulse generation for laryngeal echolocation [PDF]
EvoDevoBackground The hyolaryngeal apparatus generates biosonar pulses in the laryngeally echolocating bats. The cartilage and muscles comprising the hyolarynx of laryngeally echolocating bats are morphologically modified compared to those of non-bat mammals ...
Taro Nojiri +8 more
doaj +2 more sources
Subsurface Behaviors of Hector's Dolphins Could Increase Their Risk of Bycatch
Conservation LettersHector's dolphins, endemic to New Zealand, suffer from bycatch in fishing gear. Fishing restrictions in inshore areas have reduced bycatch, although dolphins have been recorded outside these areas.
Ilias Foskolos +10 more
doaj +2 more sources
Impact of Biomimetic Pinna Shape Variation on Clutter Echoes: A Machine Learning Approach
Advanced Intelligent SystemsBats species navigating dense vegetation based on biosonar must obtain sensory information about their environments from “clutter echoes”, i.e., echoes that are superpositions from many unresolved reflecting facets (e.g., leaves) with unpredictable ...
Ibrahim Eshera +2 more
doaj +2 more sources
Fast vocal-motor tracking of escaping prey in echolocating bats [PDF]
BMC BiologyBackground Echolocating bats face an intense arms race with insect prey that can detect bat calls and initiate evasive maneuvers. Their high closing speeds and short biosonar ranges leave bats with only a few 100 ms between detection and capture ...
Ilias Foskolos +5 more
doaj +2 more sources
Intensity and directionality of bat echolocation signals [PDF]
Frontiers in Physiology, 2013 The paper reviews current knowledge of intensity and directionality of bat echolocation signals. Recent studies have revealed that echolocating bats can be much louder than previously believed. Bats previously dubbed whispering can emit calls with source
Lasse eJakobsen +2 more
doaj +3 more sources
The jamming avoidance response in echolocating bats [PDF]
Communicative & Integrative Biology, 2019 Bats face many sources of acoustic interference in their natural environments, including other bats and potential prey items that affect their ability to interpret the returning echoes of their biosonar signals.
Te K. Jones, William E. Conner
doaj +2 more sources
Laminar Distribution of Spectrotemporal Receptive Field Subtypes in the Primary Auditory Cortex of Echolocating Bats. [PDF]
Ann N Y Acad SciThis study examines how the bat auditory cortex evolved to process biosonar echoes during echolocation. Neurons in more superficial cortical layers exhibited more complex receptive fields matching the modulated acoustic patterns of echoes reflected from obstacles and prey, rather than just the bats' emitted pulses, suggesting that these cortical ...
Faunce JA +4 more
europepmc +2 more sources