16 papers · ranked by Valyu relevance
Wu-Jung Lee, John R. Buck, Peter L. Tyack
Echolocation is a closed-loop active sensing modality in which animals not only choose how they move to acquire information, but also actively modulate incoming sensory (echo) information by shaping the acoustic signals they emit to probe the environment. While many models describe how echolocating animals react to…
Avery Selberg, Nathan Clark, Anton Nekrutenko, Maria Chikina + 1 more
Convergent evolution offers a natural test for adaptive predictability, yet pinpointing its molecular basis remains difficult. Current methods often grapple with distinguishing adaptive convergence from background noise, either by demanding overly stringent identical substitutions or relying on low-resolution…
Santani Teng, Giovanni Fusco, Aarshil Patel
Blindness imposes constraints on the acquisition of environmental sensory information. To mitigate those constraints, some blind people employ active echolocation, a technique in which self-generated tongue “clicks” produce informative reflections from surrounding surfaces. Practitioners typically produce multiple…
Andrew J. Kolarik, Samuel Evans, Eleanor McCarthy, Brian C. J. Moore
Estimates of sound source distance are well described by a compressive function relating judged to actual distance; distance is systematically underestimated at larger distances. The current experiment investigated whether such compression is a general tendency of auditory distance judgments, by measuring the judged…
Simon F. Bauerle, Leonie S. Reetz, Annette Denzinger
Acoustic communication plays a central role in animal social behavior and exhibits remarkable complexity in various taxa. In bats, the emission of echolocation calls is tightly coupled to wingbeat and respiratory rhythms. However, little is known about how complex social vocalizations are coordinated with the mechanics…
Ravi Umadi
Water-surface foraging is a rare strategy among echolocating bats, requiring precise coordination between sonar emission, echo timing, and flight geometry. Here, I develop a geometric–responsivity framework to explain how bats foraging over water regulate call timing under these constraints. The model links beam…
Sefawe, Maatla, Ganti, Sravya + 8 more
Effective monitoring of mobile animal populations is crucial for ecological research, wildlife management, and agricultural applications. Monitoring of bats specifically can help understand the spread of disease as well as shine light on bat migration patterns, population dynamics, and the impacts of environmental…
Minjie Zhang, Hui Wang, Zhongzheng Liu, Mingyue Bao + 5 more
Title: Simple Summary Bats are the only mammals capable of true powered flight, a remarkable ability supported by their highly specialized wing structures and complex physiological regulation. Herein, flyability is defined as a comprehensive biological trait supporting bat-powered flight. This review synthesizes…
Wouter Jansen, Jan Steckel
—The deployment of in-air acoustic sensors for industrial monitoring and autonomous robotics has grown significantly, often drawing inspiration from biological echolocation. However, developing and validating these systems in existing simulation frameworks remains challenging due to the computational cost of simulating…
Mingxin Zhang, Weihao Qi, Bo Han, Fujie Han + 4 more
Title: Simple Summary Most bats use echolocation to navigate and hunt. Research on energy consumption and regulatory strategies during vocalization helps reveal how animals manage energy to achieve an optimal balance among different behavioral investments. This balance improves animals’ survival and reproductive…
Emma E. Guest, Sara P. Weaver, Amanda Marie Hale, Brogan Page Morton + 3 more
An unintended consequence of wind energy generation is bat fatalities caused by wind turbine blade strikes. One potential approach to reduce collision risk is to use ultrasound to create an uncomfortable or disorienting airspace around wind turbine blades. Ultrasonic deterrents (UDs) have produced mixed results in…
M. Jerome Beetz, Manfred Kössl, Julio C. Hechavarría
Echolocating bats emit acoustic pulses that get reflected off objects. The spatial information carried by the echoes enables bats to avoid obstacles in darkness. Usually, every pulse is followed by a cascade of echoes arising from multiple objects. By using echolocation sequences where single pulses are followed by…
Jessica Carvalho, Greg O’Corry-Crowe, Laurent M. Chérubin, Eric Ward
Acoustic signaling is fundamental to dolphin ecology, with echolocation primarily supporting foraging, navigation, and predator avoidance, and whistles facilitating social communication. Here we investigate potential acoustic habitat differentiation in oceanic dolphins (delphinids) along the Florida Atlantic coast by…
Aritra K. Mukhopadhyay, Ran Niu, L. B. Fu, Feng Ke + 4 more
Motile microorganisms, like bacteria and algae, unify abilities like self-propulsion, autonomous navigation, and decision-making on the micron scale. While recent breakthroughs have led to the creation of synthetic microswimmers and nanoagents that can also self-propel, they still lack the functionality and…
Emyo Fujioka, Masashi Shiraishi, Tamao Hirao, Yui Onishi + 2 more
Group foraging can enhance prey detection, but depending on resource availability, it may also generate conflicts among conspecifics. To understand how animals balance these benefits and costs, foraging performance must be evaluated together with inter-individual interactions. However, under fully natural conditions…
Simon Hackl, Simon Hubmer, Ronny Ramlau
Ultrasound imaging is a widely used, non-invasive diagnostic tool in modern medicine. A crucial assumption is a constant sound speed in the observed medium. For large scale sound speed variations, this assumption leads to blurred and distorted images. In this paper, we present a Geometrical Acoustics based Focusing…