Results 91 to 100 of about 2,249 (202)

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

Sperm whale predator-prey interactions involve chasing and buzzing, but no acoustic stunning [PDF]

open access: yes, 2016
Field work in Norway was funded by the Carlsberg Foundation and the National Danish Research Council to PTM. The NMFS study was funded by the U.S. Mineral Management Service.
Aguilar de Soto, Natacha   +4 more
core   +3 more sources

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

The physical mechanism of beam formation in dolphin’s biosonar [PDF]

open access: yes, 2016
作为群居的海洋哺乳动物,齿鲸类拥有着与众不同且功能强大的生物声呐系统。其生物声呐系统经过自然界的长期演化和优胜劣汰,性能已高度优化。海豚的回声定位声波能够在百米内探测到厘米级大小的物体,并对毫米级厚度的金属目标做出辨别,此外还能在探测移动目标的时候对其波束特性进行调整,其性能远远优于目前世界上任何的人工声呐。其生物声呐系统卓越的性能引起了世界上声学研究者强烈的兴趣,不但使得齿鲸类生物声呐研究成为近年来生物声学界以及国际海洋声学界的焦点,还成为新型海洋技术开发值得关注的高新科技领域 ...
魏翀
core  

Bat sonar and the role of frequency diversity [PDF]

open access: yes, 2006
only.
Foote, Kenneth G., Simmons, James A.
core   +1 more source

Torus bifurcations of large-scale swarms having range dependent communication delay

open access: yes, 2020
Dynamical emergent patterns of swarms are now fairly well established in nature, and include flocking and rotational states. Recently, there has been great interest in engineering and physics to create artificial self-propelled agents that communicate ...
Edwards, Victoria   +6 more
core   +1 more source

Heaviside's dolphins (Cephalorhynchus heavisidii) relax acoustic crypsis to increase communication range [PDF]

open access: yes, 2018
Author Posting. © The Author(s), 2018. This is the author's version of the work. It is posted here under a nonexclusive, irrevocable, paid-up, worldwide license granted to WHOI. It is made available for personal use, not for redistribution.
Elwen, Simon H.   +3 more
core   +2 more sources

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

An Improved Preprocessing For Biosonar Target Classification

open access: yes, 2004
{"references": ["R. F. Lyon, ''A computational model of filtering, detection, and compression in cochlea,'' in Proc. IEEE Intl. Conf. On Acoust.Speech,Signal Processing, pp. 1282-1285, Paris, France, May, 1982.", "R.D. Patterson, and J. Holdsworth, ''A functional model of neural activity patterns and auditory images,'' William A. Ainsworth (ed.), vol.3,
Temel, T., Hallam, John
openaire   +2 more sources

Auditory opportunity and visual constraint enabled the evolution of echolocation in bats [PDF]

open access: yes, 2018
Substantial evidence now supports the hypothesis that the common ancestor of bats was nocturnal and capable of both powered flight and laryngeal echolocation.
Thiagavel, Jeneni   +5 more
core   +3 more sources

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