Social Calls of the Bats of Britain and Ireland

Author: Neil Middleton
Publisher: Pelagic Publishing Ltd
ISBN: 1784270008
Category : Science
Languages : en
Pages : 212

Book Description
Bats are fascinating mammals about which we still have much to learn. As well as using ultrasonic echolocation calls for orientation and while foraging, they also have a complex array of vocalisations for communication. These are known as social calls and are an essential component of their colonial lifestyle. This book brings together the current state of knowledge of social calls relating to the bat species occurring within Britain and Ireland, with some additional examples from species represented elsewhere in Europe. It includes access to a downloadable library of calls to be used in conjunction with the book. Downloadable call library Social calls are complex and intriguing to listen to; they are after all produced with listeners in mind (other bats). To enjoy and fully appreciate social calls the reader must also have the opportunity to become a listener: each of the presented sonograms in the book is cross-referenced to downloadable ‘time expanded’ .wav sound files which are contained within a much wider library of calls for you to explore. Included in Social Calls of the Bats of Britain and Ireland The authors start with an overview of the species of bats in Britain and Ireland (Chapter 1), and then introduce us to communication within the social world of bats (Chapter 2). Referencing the latest research, the authors explore how these calls can be classified according to their structure, and in many cases the context in which the calls are thought to be emitted (Chapter 3). Chapter 4 addresses aspects of survey methodology to be considered by those studying social calls. This leads on to the analysis of calls (Chapter 5), detailing the specific methods used and parameters commonly measured by researchers. The final, and main chapter (Chapter 6) introduces the 23 species covered in the book giving each a detailed profile including: habitat preferences, typical roosting locations, roost emergence times, mating strategies and maternity behaviour. Each species profile includes what is known about the social calls for that species and this text is supported by colour sonograms (created using Pettersson BatSound V4.1) of most of the calls discussed. Each sonogram is linked to a .wav sound file (Time Expansion x10) within the downloadable library. The sound files allow the reader to hear, as well as see, the calls produced using any bat sound analysis software that supports the .wav format. The authors conclude with a bibliography and an extensive list of references directly cross-referenced throughout the book.

Is That a Bat?

Author: Neil Middleton
Publisher: Pelagic Publishing Ltd
ISBN: 1784271985
Category : Science
Languages : en
Pages : 336

Book Description
Bat detector surveys are carried out by ecological consultants, researchers, conservationists and hobbyists. Understanding and categorising non-bat sounds in surveys offers the potential of knock-on benefits for informing development projects (e.g. other important records discovered within a site), as well as the possibility of associated conservation benefits. In recent years the number of people carrying out these surveys and recording calls with bat detectors has grown considerably. These surveys often generate vast amounts of audio recordings, resulting in the heavy workload associated with completing the sound analysis and reporting process. Those carrying out analysis can be distracted, intrigued or delayed owing to the occurrence of recordings that are unfamiliar and not identifiable to them. These recordings can relate to ‘difficult to ID’ bat species, but also, often, sounds not related to bats. This can be especially true when noise triggers such as insects, small mammals or birds look like bat-related noise. Therefore, only knowing what bats sound like is not enough. It is extremely useful to know what other sources of noise look and sound like within the same soundscape. This resource will help bat workers, in whatever environment they are in, to be more confident in recognising, categorising and dismissing other sounds. The book includes a substantial downloadable sound library (.wav format) that readers can listen to by ear or process through sound analysis software. Is That a Bat? also caters for sounds that are also heard by ear alone, in the field, during the hours of darkness. These scenarios often have bat surveyors intrigued or confused as to what they are listening to. Occasionally, knowing what these sounds are could be important, or at the very least, of interest. The first chapter caters for the subject overall, including suggestions from the author as to why the subject matter is of value. It also discusses bat-related calls (including social calls) with a view to offering comparisons against the other sources of sound discussed in separate chapters. Continuing through the book, there are chapters covering the following: small mammals; amphibians; insects; birds; electrical/mechanical noise; and other noise/nuisances. Within each chapter there are sub-sections about bat detector recorded sound, sound by ear, as well as advice on techniques and methods to reduce or increase the likelihood of recording other sounds. The book concludes with associated appendices, including a ‘Problem Solving Key’ to help those encountering an unfamiliar sound to narrow it down to the likely source. With technology advancing at pace, the technical ability of the analyst is of huge importance. With a wider perspective and more knowledge, those responsible for interpreting field encounters can be more confident when making decisions about sources of sound. Apart from that, ‘knowing stuff’ makes the job far more interesting and gives the bat worker a greater appreciation of the natural world within which they are working.

Bat Calls of Britain and Europe

Author: Jon Russ
Publisher: Pelagic Publishing Ltd
ISBN: 1784272264
Category : Science
Languages : en
Pages : 651

Book Description
A comprehensive guide to the calls of the 44 species of bat currently known to occur in Europe. Following on from the popular British Bat Calls by Jon Russ, this new book draws on the expertise of more than forty specialist authors to substantially update all sections, further expanding the volume to include sound analysis and species identification of all European bats. Aimed at volunteers and professional alike, topics include the basics of sound, echolocation in bats, an introduction to acoustic communication, equipment used and call analysis. For each species, detailed information is given on distribution, emergence, flight and foraging behaviour, habitat, echolocation calls – including parameters of common measurements – and social calls. Calls are described for both heterodyne and time expansion/full spectrum systems. A simple but complete echolocation guide to all species is provided for beginners, allowing them to analyse call sequences and arrive at the most likely species or group. The book also includes access to a downloadable library of over 450 calls presented as sonograms in the species sections.

Bats of Britain and Europe

Author: Christian Dietz
Publisher: Bloomsbury Publishing
ISBN: 1472935772
Category : Nature
Languages : en
Pages : 568

Book Description
The definitive guide to the bats of Britain and Europe. This concise and definitive guide presents all 45 bat species that regularly occur in Europe (of which 17 are known to breed in the British Isles). The extensive introduction details the remarkable biology of bats and explores the latest findings in bat evolution, behaviour and echolocation. This is followed by in-depth species accounts covering life history, conservation status and identification of families and genera, including echolocation characteristics, and complemented by accurate distribution maps, with the book illustrated throughout with almost 700 superb colour photographs. Suitable for beginners, students, professionals or conservationists alike, Bats of Britain and Europe is the authoritative field guide for bat watchers – an essential reference for every bat enthusiast.

Bat Roosts in Rock

Author: Bat Rock Habitat Key
Publisher: Pelagic Publishing Ltd
ISBN: 1784272620
Category : Science
Languages : en
Pages : 400

Book Description
This guide provides descriptions of when the bat species resident in Britain and Ireland use natural and human-made rock habitats, how they use them, and the environments each species occupies therein. For the first time it brings together findings from historical scientific investigations, useful photographic accounts and open-access biological records, along with a rich seam of new data – all in a practical and user-friendly structure. The book encompasses: ~ Descriptions of the features that a climber, caver or professional ecologist might encounter on and in rock habitats where bats roost. ~ Recording criteria for both the physical and environmental attributes of different features and situations. ~ Identification of suitability thresholds against which the recorded information can be compared to assess the likelihood that a specific feature might be exploited by a particular bat species. ~ Suggestions for how to avoid mistakes and difficulties when performing a survey. The intention is that using this book will help generate standardised biological records which can feed into the fully accessible online database at www.batrockhabitatkey.co.uk. These data will be analysed to search for patterns that can increase the confidence in the suitability thresholds and help build roost features that deliver the environment each species really needs. As well as offering many new insights, this book allows the reader to participate in cutting-edge research.

The Handbook of Acoustic Bat Detection

Author: Volker Runkel
Publisher:
ISBN: 9781784272203
Category : Nature
Languages : en
Pages : 0

Book Description
A fundamental understanding of acoustic detection principles, study planning, data handling, properties of bat calls, manual identification of species, automatic species recognition, analysis of results, quality assurance and the background physics of sound.

The Secret Lives of Bats

Author: Merlin D. Tuttle
Publisher: Houghton Mifflin Harcourt
ISBN: 0544382277
Category : Nature
Languages : en
Pages : 309

Book Description
"Tuttle's account forever changes the way we see these poorly understood yet fascinating cratures." -- page 4 of cover.

Sound Identification of Terrestrial Mammals of Britain & Ireland

Author: Neil Middleton
Publisher: Pelagic Publishing Ltd
ISBN: 1784273821
Category : Science
Languages : en
Pages : 443

Book Description
This ground-breaking volume covers 42 species of terrestrial mammal – from the red deer to the pygmy shrew, from the pine marten to the hedgehog. The subject is introduced for the first time as a single overarching field of study, including guidance on survey methods, analysis of sound recordings and appropriate software. The book covers species in Britain, Ireland, the Isle of Man and the Channel Islands. Containing over 300 figures in total, each species is considered in detail, with specific spectrogram examples. Furthermore, the book allows the reader access to a downloadable sound library containing more than 250 recordings. The authors have extensive experience and expertise in bioacoustics, including in the sound identification of mammals. They are also heavily involved in creating tools that use machine-learning algorithms to recognise mammal species from their calls. A real ear-opener, this will be the essential handbook for many years to come, serving ecological consultants, academics, conservationists, hobbyists and serious mammal recorders alike.

Bat Basics

Author: Karen Krebbs
Publisher: Adventure Publications
ISBN: 1591938449
Category : Nature
Languages : en
Pages : 224

Book Description
Explore the Everyday Lives of Bats! Bats have been misunderstood for generations, yet they are essential to a healthy ecosystem. From insect control to pollination services, we need bats more than most people know. Bat Basics separates fact from fiction in a fascinating, fun guide to the world’s only flying mammals. Author Karen Krebbs has been studying bats for more than 30 years. She lectures, teaches, and even trains government workers on the subject—and now she’s sharing her expertise with you. Learn the Bat Basics, such as how they use echolocation, why they hibernate, and what they eat. Discover bat myths that you probably thought were true. Find out how to bat-proof a house. Then turn to the field guide section, and identify a variety of common and important-to-know species. Projects, activities, and tips for helping the bat population round out this comprehensive guide. Get Bat Basics, and read all about why bats should be celebrated—not feared.

Bat Roosts in Trees

Author: Bat Tree Habitat Key
Publisher: Pelagic Publishing Ltd
ISBN: 1784271640
Category : Nature
Languages : en
Pages : 273

Book Description
This is a guide to finding tree-roosts. It is the result of the collaborative efforts of professional surveyors and amateur naturalists across Europe as part of the Bat Tree Habitat Key project, and represents a combination of firsts: It is the first time legislation and planning policy have been reviewed and put to practical use to define an analysis framework with clearly identifiable thresholds for action. Yet, despite its efficacy in a professional context, it is also the first time a guide has been produced that is equally effective in achieving its objective for amateurs. It is the first time such a method has been evidence-supported throughout, with summary reviews of each aspect of the roosting ecology of the individual 14 tree-roosting species, with illustrative photographs and data to which the reader has open access. It is the first time a repeatable analysis framework has been defined against which the surveyor may compare their results at every stage, from the desk-study, through ground-truthing, survey and analysis, thereby ensuring nothing is overlooked and that every result can be objectively compared. The survey and analysis framework itself is ground-breaking in that it may readily be adapted for any taxa; from moths, through amphibians, reptiles, birds and all other mammals. Used diligently, these methods will reward disproportionately and imbue the reader with renewed confidence as they quickly progress from beginner to competency. Thus, this book is for everyone who has ever wanted to find a tree-roost, or to safeguard against inadvertently damaging one.