Results 81 to 90 of about 1,322 (144)

Ultrasonic predator-prey interactions in water– convergent evolution with insects and bats in air?

open access: yesFrontiers in Physiology, 2013
Toothed whales and bats have independently evolved biosonar systems to navigate and locate and catch prey. Such active sensing allows them to operate in darkness, but with the potential cost of warning prey by the emission of intense ultrasonic signals ...
Maria eWilson   +3 more
doaj   +1 more source

Numerical Study of the Effect of Furrows on Biosonar Beamforming in Aselliscus Stoliczkanus Bat

open access: yesArchives of Acoustics, 2017
The Aselliscus Stoliczkanus bat, studied here, has intricately shaped structures surrounding the nostrils. These structures are hypothesised to have influence on animals’ acoustic radiation patterns.
Weikai HE   +4 more
doaj   +1 more source

Intensity and directionality of bat echolocation signals

open access: yesFrontiers 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   +1 more source

Acoustics in water: synergies with marine biology

open access: yesEPJ Web of Conferences, 2017
This paper presents some of the bioacoustics related analysis that was performed on the ANTARES data, focussing on the year 2014. The data was processed for sperm whale, dolphin and shipping presence and grouped by hour of the day.
van der Schaar Mike   +7 more
doaj   +1 more source

Acoustic Behavior of Franciscana Dolphins (Pontoporia blainvillei) Around a Fishing Net During a Bycatch Event

open access: yes
Marine Mammal Science, Volume 42, Issue 1, January 2026.
Luiz Gustavo Ramos Arrial   +3 more
wiley   +1 more source

Determining biosonar images using sparse representations

open access: yes, 2009
: Echolocating bats are thought to be able to create an image of their environment by emitting pulses and analyzing the reflected echoes. In this paper, the theory of sparse representations and its more recent further development into compressed sensing ...
Fontaine, Bertrand   +3 more
core   +1 more source

Delayed response and biosonar perception explain movement coordination in trawling bats.

open access: yesPLoS 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   +1 more source

Sound Reception in the Yangtze Finless Porpoise and Its Extension to a Biomimetic Receptor. [PDF]

open access: yesBiomimetics (Basel), 2023
Song Z   +8 more
europepmc   +1 more source

TIME-RESOLVED SPECTRUM KERNEL FOR BIOSONAR TARGET CLASSIFICATION

open access: yes, 2008
We consider the problem of biosonar landmark classification as an example of random and non-stationary signal classification in which finding robust and structure independent features for classification is not trivial.
M. Beigi
core  

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