Acoustic Ecology of European Bats

Species Identification, Study of their Habitats and Foraging Behaviour

Michel Barataud

Acoustic Ecology of European Bats

Michel Barataud

Distributed for French National Museum of Natural History

Translated by Anya Cockle-Bétian. With Forewords by Hans-Ulrich Schnitzler and Ingemar Ahlén
352 pages | 233 color plates, 29 tables | 6 1/2 x 9 3/4 | © 2015  
Cloth $55.00 ISBN: 9782856537718 Published February 2016 For sale in North and South America only
As nocturnal flying mammals, bats have developed a unique and very efficient means of navigating in the dark: sonar, or echolocation. Although the acoustic signals they emit are inaudible to the human ear, they can be perceived, recorded, and analyzed with appropriate equipment and software. In this book, Michel Barataud synthesizes more than two decades of research on acoustic ecology and bat sonar physics and detection. Highlighting technological advances, Barataud shows how he has developed an ever more efficient identification method using an initial, purely auditory approach (a “bat detector”) complemented by computer-assisted analysis of the ultrasonic signals. By following Barataud’s method and the data provided, readers will be able to identify about 85% of European bat acoustic records, including all the most widespread species, as well as carry out non-invasive bat inventories and research. Including a DVD of more than 300 audio samples and scatter diagrams of sonar emissions to aid in species identification, and featuring a contribution by bat sonar pioneer Yves Tupinier, Acoustic Ecology of European Bats will be an invaluable resource for all scientists of Chiroptera.
Preface by Hans-Ulrich Schnitzler 
Preface by Ingemar Ahlén
List of species
List of abbreviations

Chapter 1: The biological sonar 
Basic concepts in acoustics
Emission and reception

Chapter 2: Ultrasound detectors
Technical features of ultrasound detectors
Ultrasound decoding systems
Which bat detector for which purpose?

Chapter 3: The sonar signals of bats: classification and interpretation 
Method of auditory analysis
Méthode d’analyse informatique 

Chapter 4: The acoustic identification of bats
Method and equipment
Auditory identification with the heterodyne system
Auditory and computer-assisted identification in time expansion
Identification of CF signals (horsehoe bats)
Identification of OCF-FMd signals
Identification of QCF, FM-QCF and Flat-ended FM signals
General identification key

Chapter 5: Applications
Locating bat roosts
Population monitoring 
Habitat studies

Chapter 6: Acoustic ecology
The concept of acoustic ecology
Example 1: the sonar of the barbastelle
Example 2: the sonar of the greater noctule
Promising fields for future research

Chapter 7: Frequently asked questions on acoustic detection and identification
The heterodyne system
Time expansion
Scatter diagrams
Bat activities studies

Chapter 8: Perspectives
Technical developments
Methodological developments
Extending the method worldwide
Dissemination of knowledge and skill

Scatter diagrams for the identification of the sonar signals of the three Plecotus species studies 
Review Quotes
Journal of Mammalogy
“Insights on biological sonar, basic concepts of acoustics, and parameter assessment of the use of ultrasound detectors are presented, enabling the reader to understand the fundamentals and acquire a working knowledge of the field. . . . This book is a worthwhile compilation that presents a useful guide and introduction to the eco-acoustics of European bats. It certainly delivers what the title suggests, ranging from the presentation of the most basic acoustic concepts to detailed description of acoustical applications and functions in the environment, with particular focus on interactions between bats and their habitat. This volume should be read by wildlife biologists and mammalogists desiring to study bats, as well as specialists whose research is centered on echolocation. Furthermore, we recommend that all academic institutions, especially those in Europe, have this valuable compilation in their libraries.”
Stuart Newson | British Trust for Ornithology Reviews
"Acoustic Ecology of European Bats contains a wealth of as yet unpublished information indispensable to amateur naturalists and professionals involved in the management of protected areas or in environmental impact studies. This is the most extensive reference on the acoustic identification of European bats."
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