Download or read book Function of Social Calls in Brown Long eared Bats Plecotus Auritus written by Stephanie E. Murphy and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Microchiropteran bats produce vocalisations for two purposes: echolocation and communication. Vocalisations used for communication are often referred to as social calls. In this thesis I examined the nature of Brown Long-eared bats Plecotus auritus social calls recorded at roost and foraging sites through a combination of recording and playback experiments. A total of 11,484 social calls were recorded at 20 maternity roosts sites and three types of vocalisations were dentified on the basis of shape, referred to as Type A, B, and C. Although Type A vocalisations shared the same basic pattern, it was a very large group within which there was a lot of variation in acoustic parameters. Principal component analysis and modelbased cluster analysis were used to look for patterns within this group, and this identified six clusters. Maternity colonies surveyed in this study varied in size from as few as nine up to 98 bats, and the number of social calls recorded at the roost sites was highly correlated with the numbers of bats present in the colony. The analysis of seasonal patterns of social call production revealed that the number of social calls recorded at maternity roost sites showed a linear increase from June to September, whereas, the number of bats emerging decreased sharply from August to September. Simulations of P. auritus social calls were used to investigate behavioural responses to calls away from roost sites using the Autobat. P. auritus were clearly much more responsive to simulations of their own species' social calls than to the other stimuli tested. This strongly suggests that the responses to the Autobat represent attempts to interact with the source of the stimulus. Recording with ultrasound and infra-red video was conducted to test the bats' responses to the different types of synthesised call and whether these responses varied seasonally. A female's approach response to the stimulus may represent an attempt to repel a perceived intruder from her foraging area. Alternatively, if calls were used to coordinate foraging by advertising the location of resources to other females that share the range, a response may represent an attempt to move towards such resources. Experiments showed that females were significantly more likely to respond to a stimulus produced within their core foraging area, than in the peripheral area, or outside their foraging area. On the other hand, while females regularly shared foraging ranges with other females, there was little evidence of co-ordination of movements between simultaneously radio-tracked dyads. It was concluded that responses to the stimuli probably represent attempts to repel perceived intruders from the foraging area. The thesis concludes with a discussion of some of the advantages and limitations of using play-back of synthesised social calls in the field to investigate vocal communication in bats. Ways in which studies of captive bats of known relatedness could be used to further elucidate the functions of social calls are discussed.
Download or read book Social Calls of the Bats of Britain and Ireland written by Neil Middleton and published by Pelagic Publishing Ltd. This book was released on 2014-09-01 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Sociality in Bats written by Jorge Ortega and published by Springer. This book was released on 2016-06-07 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides new insights into the social behavior of bats - one of the most fascinating topics currently being pursued by researchers. After an introduction reviewing the history of research in bat behavioral ecology, it covers three major themes: bat sociality per se (Part I), bat communication (Part II), and ecological aspects (Part III). Part I offers a concise overview of the social organization and systems of bats, introducing readers to the complexity and dynamics of group structures. Part II is devoted to the innovative field of social communication, focusing on bat songs, dialects and calls. Part III discusses the influence of the environment on bat behavior, particularly with regard to roosting and foraging. This book addresses the needs of researchers working in behavioral sciences, evolution and ecology.
Download or read book Social Functions of Bat Vocalizations written by Mirjam Knörnschild and published by Frontiers Media SA. This book was released on 2023-08-11 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bats are highly gregarious mammals that have been extensively studied for their ability to echolocate (i.e., gain information from the echoes of ultrasonic calls) to navigate and find food. Perhaps less well studied are social vocalizations, which bats use to communicate with conspecifics. Some bat species have been shown to possess rich vocal repertoires, supporting intricate social interactions. While the roost is likely where the majority of a bat's social interactions occur, on account of higher densities, there are also behavioral contexts that occur predominantly, if not solely in flight, that are associated with social calls. Bats exhibit an extensive range in social group size, social group organization, and mating systems, making them interesting for comparative, phylogenetically controlled analyses. Group size is often correlated with vocal complexity, as more complex vocalizations can encode more information about individual identity. Vocal learning has been observed in some species of bats. The full vocal repertoires of relatively few bat species have been studied thus far, as they are nocturnal, volant animals that produce predominately ultrasonic vocalizations. With more data available, bats would be a very useful taxon for studying the evolution of social communication, as they exhibit not only a high diversity of social group size and complexity but also sophisticated vocalizations. Social vocalizations can be structurally diverse and are highly important for bat sociality. Calls often vary notably between species. Research in this field has barely scratched the surface, and there is still much to learn about social communication in bats.
Download or read book Long eared Bats written by Susan M. Swift and published by A&C Black. This book was released on 2010-01-31 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: Long-Eared Bats examines the biology, ecology and behaviour of two European bat species - Plecotus auritus and Plecotus austriacus. This book investigates their behaviour and considers the full range of conservation issues relating to the species. Topics covered include: identifying the species, foraging, reproductive biology, social organization, and the effects of man-made alterations to the environment and proposed conservation methods.
Download or read book Bat Calls of Britain and Europe written by Jon Russ and published by Pelagic Publishing Ltd. This book was released on 2021-08-23 with total page 651 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Social Organisation and Population Structure in the Brown Long eared Bat Plecotus Auritus written by Tamsin M. Burland and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chiroptera written by Danilo Russo and published by Springer Nature. This book was released on 2023-11-30 with total page 961 pages. Available in PDF, EPUB and Kindle. Book excerpt: PreliminaryThis volume provides comprehensive overviews of each European bat species’ biology including palaeontology, physiology, genetics, reproduction and development, ecology, habitat, diet, mortality and age determination. Their economic significance and management, as well as future challenges for research and conservation are also addressed. Each chapter includes a distribution map, a photograph of the animal and key literature. This authoritative volume of the Handbook of the Mammals of Europe is a timely and detailed compilation of all European bats and will appeal to academics, students and professionals in mammal research.
Download or read book Bats of Britain and Europe written by Christian Dietz and published by Bloomsbury Publishing. This book was released on 2016-02-25 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Ontogeny Functional Ecology and Evolution of Bats written by Rick A. Adams and published by Cambridge University Press. This book was released on 2000-06-15 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores the importance of understanding developmental processes in analyses of bat ecology and evolution.
Download or read book The Handbook of Acoustic Bat Detection written by Volker Runkel and published by Pelagic Publishing Ltd. This book was released on 2021-08-26 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: An accessible and comprehensive guide to all things acoustic bat detection. This highly illustrated handbook provides an in-depth 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. No other method of detecting bats is so popular and widespread in the context of environmental assessment and voluntary work as acoustic detection, and its increased use has driven the development of a large number of sophisticated devices and analytical methods. Acoustic detection has become a standard approach for establishing the presence of bats, carrying out species identification and monitoring levels of activity. The resolution, accuracy and scale with which these tasks can be done has risen dramatically with the availability of automated real-time recording. But anyone interested in acoustic recording will quickly recognise that there are still quite a few open questions about the limits and possibilities of acoustic detection. Clear definitions of how to handle the data are usually missing, for example, and there are no clearly described activity indices. In response to the lack of thorough information on the underlying science of acoustic detection, the authors present this handbook.
Download or read book Bats in the Anthropocene Conservation of Bats in a Changing World written by Christian C. Voigt and published by Springer. This book was released on 2015-12-07 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on central themes related to the conservation of bats. It details their response to land-use change and management practices, intensified urbanization and roost disturbance and loss. Increasing interactions between humans and bats as a result of hunting, disease relationships, occupation of human dwellings, and conflict over fruit crops are explored in depth. Finally, contributors highlight the roles that taxonomy, conservation networks and conservation psychology have to play in conserving this imperilled but vital taxon. With over 1300 species, bats are the second largest order of mammals, yet as the Anthropocene dawns, bat populations around the world are in decline. Greater understanding of the anthropogenic drivers of this decline and exploration of possible mitigation measures are urgently needed if we are to retain global bat diversity in the coming decades. This book brings together teams of international experts to provide a global review of current understanding and recommend directions for future research and mitigation.
Download or read book Functional and Evolutionary Ecology of Bats written by Akbar Zubaid and published by Oxford University Press. This book was released on 2006-01-05 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: Every three years a major international conference on bats draws the leading workers in the field to a carefully orchestrated presentation of the research and advances and current state of understanding of bat biology. Bats are the second most populous group of mammalia species, after rodents, and they are probably the most intensively studied group of mammals. Virtually all mammologists and a large proportion of organismic biologists are interested in bats. The earlier two edited books deriving from previous bat research conferences, as well as this one, have been rigorously edited by Tom Kunz and others, with all chapters subjected to peer review. The resulting volumes, published first by Academic Press and most recently by Smithsonian, have sold widely as the definitive synthetic treatments of current scientific understanding of bats.
Download or read book Social Organization and Population Structure in the Brown Long eared Bat Plecotus Auritus written by Tamsin M. Burland and published by . This book was released on 1998 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bats of Britain and Europe written by Christian Dietz and published by Bloomsbury Publishing. This book was released on 2016-02-25 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Intra and Interspecific Responses to Rafinesque s Big eared Bat Corynorhinus Rafinesquii Social Calls written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Bats respond to the calls of conspecifics as well as to calls of other species; however, few studies have attempted to quantify these responses or understand the functions of these calls. We tested the response of Rafinesque's big-eared bats (Corynorhinus rafinesquii) to social calls as a possible method to increase capture success and to understand the function of social calls. We also tested if calls of bats within the range of the previously designated subspecies differed, if the responses of Rafinesque's big-eared bats varied with geographic origin of the calls, and if other species responded to the calls of C. rafinesquii. We recorded calls of Rafinesque's big-eared bats at two colony roost sites in South Carolina, USA. Calls were recorded while bats were in the roosts and as they exited. Playback sequences for each site were created by copying typical pulses into the playback file. Two mist nets were placed approximately 50-500 m from known roost sites; the net with the playback equipment served as the Experimental net and the one without the equipment served as the Control net. Call structures differed significantly between the Mountain and Coastal Plains populations with calls from the Mountains being of higher frequency and longer duration. Ten of 11 Rafinesque's big-eared bats were caught in the Control nets and, 13 of 19 bats of other species were captured at Experimental nets even though overall bat activity did not differ significantly between Control and Experimental nets. Our results suggest that Rafinesque's big-eared bats are not attracted to conspecifics' calls and that these calls may act as an intraspecific spacing mechanism during foraging.
Download or read book Intra and Interspecific Responses to Rafinesque u2019 s Big eared Bat Corynorhinus Rafinesquii Social Calls written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Bats respond to the calls of conspecifics as well as to calls of other species; however, few studies have attempted to quantify these responses or understand the functions of these calls. We tested the response of Rafinesque’s big-eared bats (Corynorhinus rafinesquii) to social calls as a possible method to increase capture success and to understand the function of social calls. We also tested if calls of bats within the range of the previously designated subspecies differed, if the responses of Rafinesque’s big-eared bats varied with geographic origin of the calls, and if other species responded to the calls of C. rafinesquii. We recorded calls of Rafinesque’s big-eared bats at two colony roost sites in South Carolina, USA. Calls were recorded while bats were in the roosts and as they exited. Playback sequences for each site were created by copying typical pulses into the playback file. Two mist nets were placed approximately 50–500 m from known roost sites; the net with the playback equipment served as the Experimental net and the one without the equipment served as the Control net. Call structures differed significantly between the Mountain and Coastal Plains populations with calls from the Mountains being of higher frequency and longer duration. Ten of 11 Rafinesque’s big-eared bats were caught in the Control nets and, 13 of 19 bats of other species were captured at Experimental nets even though overall bat activity did not differ significantly between Control and Experimental nets. Our results suggest that Rafinesque’s big-eared bats are not attracted to conspecifics’ calls and that these calls may act as an intraspecific spacing mechanism during foraging.
