Hearing by Bats

2012-12-06

New research areas will be covered on a timely basis in the series as they begin to mature. Each volume in the series consists of five to eight substantial chapters on a particular topic.

Author: Richard R. Fay

Publisher: Springer Science & Business Media

ISBN: 9781461225560

Category: Science

Page: 515

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The Springer Handbook oj Auditory Research presents a series of com prehensive and synthetic reviews of the fundamental topics in modern auditory research. It is aimed at all individuals with interests in hearing research including advanced graduate students, postdoctoral researchers, and clinical investigators. The volumes will introduce new investigators to important aspects of hearing science and will help established investigators to better understand the fundamental theories and data in fields of hearing that they may not normally follow closely. Each volume is intended to present a particular topic comprehensively, and each chapter will serve as a synthetic overview and guide to the literature. As such, the chapters present neither exhaustive data reviews nor original research that has not yet appeared in peer-reviewed journals. The series focuses on topics that have developed a solid data and conceptual foundation rather than on those for which a literature is only beginning to develop. New research areas will be covered on a timely basis in the series as they begin to mature. Each volume in the series consists of five to eight substantial chapters on a particular topic. In some cases, the topics will be ones of traditional interest for which there is a solid body of data and theory, such as auditory neuroanatomy (Vol. 1) and neurophysiology (Vol. 2). Other volumes in the series will deal with topics which have begun to mature more recently, such as development, plasticity, and computational models of neural processing.
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Bat Bioacoustics

2016-06-02

Adaptations for biosonar make one of the most fascinating stories in neuroethology. The auditory systems, biosonar signals, and their central role in the biology of bats are front and center in this story.

Author: M. Brock Fenton

Publisher: Springer

ISBN: 9781493935277

Category: Medical

Page: 304

View: 605

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Arguably biosonar is one of the ‘eye-opening’ discoveries about animal behavior and the auditory systems of echolocators are front and center in this story. Echolocation by bats has proven to be a virtual gold mine for colleagues studying neurobiology, while providing many rich examples of its impact on other areas of bats’ lives. In this volume we briefly review the history of the topic (reminding readers of the 1995 Hearing by Bats). We use a chapter on new findings in the phylogeny of bats to put the information that follows in an evolutionary context. This includes an examination of the possible roles of Prestin and FoxP2 genes and various anatomical features affecting bat vocalizations. We introduce recent work on the role of noseleafs, ears, and other facial components on the focusing of sound and collection of echoes. ​
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Echolocation in Bats and Dolphins

2004

While much research has been conducted over the past thirty years on echolocation in bats and dolphins, this volume is the first to compare what is known about echolocation in each group, to point out what information is missing, and to ...

Author: Jeanette A. Thomas

Publisher: University of Chicago Press

ISBN: 0226795993

Category: Nature

Page: 636

View: 235

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Although bats and dolphins live in very different environments, are vastly different in size, and hunt different kinds of prey, both groups have evolved similar sonar systems, known as echolocation, to locate food and navigate the skies and seas. While much research has been conducted over the past thirty years on echolocation in bats and dolphins, this volume is the first to compare what is known about echolocation in each group, to point out what information is missing, and to identify future areas of research. Echolocation in Bats and Dolphins consists of six sections: mechanisms of echolocation signal production; the anatomy and physiology of signal reception and interpretation; performance and cognition; ecological and evolutionary aspects of echolocation mammals; theoretical and methodological topics; and possible echolocation capabilities in other mammals, including shrews, seals, and baleen whales. Animal behaviorists, ecologists, physiologists, and both scientists and engineers who work in the field of bioacoustics will benefit from this book.
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Biosonar

2014-07-19

This book provides a unique insight that will help improve our understanding of biosonar in both animal groups. Bats and odondoctes have evolved the ability to use echolocation to find objects in their environments.

Author: Annemarie Surlykke

Publisher: Springer

ISBN: 9781461491460

Category: Science

Page: 304

View: 114

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Two groups of animals, bats and odontocetes (toothed whales), have independently developed the ability to orient and detect prey by biosonar (echolocation). This active mechanism of orientation allows these animals to operate under low light conditions. Biosonar is a conceptual overview of what is known about biosonar in bats and odontocetes. Chapters are written by bat and odontocetes experts, resulting in collaborations that not only examine data on both animals, but also compare and contrast mechanisms. This book provides a unique insight that will help improve our understanding of biosonar in both animal groups.
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Predator Prey Interactions Co evolution between Bats and Their Prey

2017-02-08

This book provides a comprehensive review of the evolution of traits associated with predation and predator defense for bats and all of their prey, both invertebrates (e.g. insects) and vertebrates (e.g. frogs), in the context of co ...

Author: David Steve Jacobs

Publisher: Springer

ISBN: 9783319324920

Category: Science

Page: 135

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This book provides a comprehensive review of the evolution of traits associated with predation and predator defense for bats and all of their prey, both invertebrates (e.g. insects) and vertebrates (e.g. frogs), in the context of co-evolution. It reviews current knowledge of how echolocation and passive hearing are used by bats to hunt prey in complete darkness. Also it highlights how prey have evolved counter measures to bat echolocation to avoid detection and capture. This includes the whole range of prey responses from being active at times when bats are inactive to the use of acoustic signals of their own to interfere with the echolocation system of bats.
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Flight Behaviour Call Design and Directional Hearing in the Echolocating Nectar feeding Bat Glossophaga Soricina Pallas 1766

2011

The general interest behind the work presented in this thesis is to link the behaviour of bats to their adaptive signal design in order to clarify how bats integrate complex echoes in a foraging context.

Author: Violaine Drapeau (A. C.)

Publisher:

ISBN: OCLC:824173763

Category:

Page:

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Abstract As echolocators, bats are an ideal model to study sensory ecology because they actively adjust their signal to sensory constraints in their environment. The general interest behind the work presented in this thesis is to link the behaviour of bats to their adaptive signal design in order to clarify how bats integrate complex echoes in a foraging context. I also wish to bring new perspectives on how to study bat behaviour in a controlled laboratory environment, by presenting a novel apparatus developed to study directional hearing in bats. The model species is the nectar-feeding bat Glossophaga soricina because of its easy maintenance in laboratory setting. In chapter three, I tested the flight and echolocation behaviour of the nectar-feeding bats by stereo videogrammetry as they approached a rewarded feeder in various cluttered conditions. The bats adjusted their trajectory and speed to the clutter and target proximity. Their calls (multi-harmonic broadband FM) were shorter and separated with shorter interval as they approached their target. They also adjusted their call frequency bandwidth in clutter. I argue that bats exploited different aspects of their calls according to context (e.g. overlap avoidance, increase in resolution). In chapter four, I investigated the source levels of the bats by stereo videogrammetry when they approached a target in different clutter conditions. The bats lowered their source level as they approached the target and were found to be louder than previously though. I propose that they compensate source level to maintain constant received echo intensity. They also adjust their calls to louder source levels when flying through narrower corridors. This may benefit their perception of the target by increasing the conspicuousness of the echo in narrower corridors. In chapter five, I present novel behavioural data testing the minimum audible angles of the bats in a 2AFC (2 alternative forced choice) lateralisation task of phantom echoes during echolocation. The three bats tested had MAA (Minimum audible angle) of 7.8°, 10.8° and 23°. I hypothesise that some bats used an alternative strategy to the trained task. Increasing the motivation level of the bats could reveal more consistent performances. I also tested the bat performances when three different frequency bandwidth of the phantom echo were played back, in order to evaluate the spectral cues for directional information. The bats did not perform differently in the three treatments. I argue that the spectral cues are not essential for a lateralisation task but would be crucial in a vertical localisation task.
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Hearing by Whales and Dolphins

2012-12-06

Here, experts in different areas of the field provide an overview of the bioacoustics of whales and dolphins as well as a thorough introduction to the subject for investigators of hearing in other animals.

Author: Whitlow W.L. Au

Publisher: Springer Science & Business Media

ISBN: 9781461211501

Category: Science

Page: 485

View: 187

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Here, experts in different areas of the field provide an overview of the bioacoustics of whales and dolphins as well as a thorough introduction to the subject for investigators of hearing in other animals. Topics covered include the structure and function of cetacean auditory systems, the unique sound production system of odontocetes, acoustic communication, psychoacoustics, echolocation and models of sound propagation.
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Bats

2018-05-14

This comprehensive book about the lives of bats is about a group of peculiar, mythical and fascinating animals.

Author: Johan Eklöf

Publisher: Springer

ISBN: 9783319665382

Category: Science

Page: 168

View: 158

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This comprehensive book about the lives of bats is about a group of peculiar, mythical and fascinating animals. They are mammals, just like us, but still so different. The book covers bats from Latin American Maya temples to Swedish potato cellars; from the plains of Kenya to the Taiwanese mountains. We perceive their shadows flitting by in the summer nights, hear their mating calls in the darkness of autumn and see their silhouettes in the dim street light. The bats live in our houses and forage in our gardens and parks. But who are they and how do they lead their lives? The text and exquisite photos give an unsurpassed insight into the world of sounds and smells that bats encounter each night. We are told about how their senses, way beyond our human perception abilities, shape their lives. We get to know more about their habits, their long evolution and their cohabitation with humans, and how important they are to the environment. You will never again feel lonely in the darkness of the night.
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