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Author: Lukas Jenni
Publisher: Bloomsbury Publishing
ISBN: 1472977238
Category : Nature
Languages : en
Pages : 473
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Book Description
The first comprehensive review of all aspects of the biology of moult, drawing information from across the literature and in all birds, from penguins to passerines. Feathers are amazing structures unique to birds and, for a variety of reasons, they need to be renewed periodically as a whole in a process called moult. During this process, all of the functions of plumage are impaired and most aspects of a bird's life are affected. Every moult determines a bird's appearance anew, and restores plumage efficacy for flight and insulation. Moult profoundly affects physiology and the organization of the annual cycle, and it constrains reproduction and migration. Given these major impacts, which are equal to the other annual challenges of reproduction and migration, it is surprising that research on moult has largely been so neglected a subject. Lukas Jenni and Raffael Winkler have brought together the widely scattered results of studies on the processes and consequences of moult in birds. This book opens with an overview of the functions of plumage, and of feather maintenance and feather wear, and then introduces the two functions of moult: replacement of worn feathers and adjustment of plumage characteristics and appearance. The body of the book then examines feather-growth and the physiology, energetics and control of moult, and how various other physiological processes interact with moult and may compensate for its costs. Significantly, the authors explain how variations in moult and feather quality affect a bird's overall plumage quality, and they highlight the resulting consequences in terms of physical performance, appearance and signalling. Finally, there is a review of all the various solutions that birds have developed to fit moult into the annual cycle. This long-awaited book covers for the first time all aspects of the biology of moult and fills an important gap in the literature, completing our understanding of how the most important annual events in a bird's life fit together into a coherent whole. It draws on a wide range of information – from penguins to small passerines, from raptors to wildfowl – to highlight the variety of the subject and to pinpoint the many gaps in our knowledge along with avenues for fruitful further research.
Author: Lukas Jenni
Publisher: Bloomsbury Publishing
ISBN: 1472977238
Category : Nature
Languages : en
Pages : 473
Get Book
Book Description
The first comprehensive review of all aspects of the biology of moult, drawing information from across the literature and in all birds, from penguins to passerines. Feathers are amazing structures unique to birds and, for a variety of reasons, they need to be renewed periodically as a whole in a process called moult. During this process, all of the functions of plumage are impaired and most aspects of a bird's life are affected. Every moult determines a bird's appearance anew, and restores plumage efficacy for flight and insulation. Moult profoundly affects physiology and the organization of the annual cycle, and it constrains reproduction and migration. Given these major impacts, which are equal to the other annual challenges of reproduction and migration, it is surprising that research on moult has largely been so neglected a subject. Lukas Jenni and Raffael Winkler have brought together the widely scattered results of studies on the processes and consequences of moult in birds. This book opens with an overview of the functions of plumage, and of feather maintenance and feather wear, and then introduces the two functions of moult: replacement of worn feathers and adjustment of plumage characteristics and appearance. The body of the book then examines feather-growth and the physiology, energetics and control of moult, and how various other physiological processes interact with moult and may compensate for its costs. Significantly, the authors explain how variations in moult and feather quality affect a bird's overall plumage quality, and they highlight the resulting consequences in terms of physical performance, appearance and signalling. Finally, there is a review of all the various solutions that birds have developed to fit moult into the annual cycle. This long-awaited book covers for the first time all aspects of the biology of moult and fills an important gap in the literature, completing our understanding of how the most important annual events in a bird's life fit together into a coherent whole. It draws on a wide range of information – from penguins to small passerines, from raptors to wildfowl – to highlight the variety of the subject and to pinpoint the many gaps in our knowledge along with avenues for fruitful further research.
Author: Lukas Jenni
Publisher: Bloomsbury Publishing
ISBN: 1472977203
Category : Nature
Languages : en
Pages : 320
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Book Description
Feathers are amazing structures unique to birds and, for a variety of reasons, they need to be renewed periodically as a whole in a process called moult. During this process, all of the functions of plumage are impaired and most aspects of a bird's life are affected. Every moult determines a bird's appearance anew, and restores plumage efficacy for flight and insulation. Moult profoundly affects physiology and the organization of the annual cycle, and it constrains reproduction and migration. Given these major impacts, which are equal to the other annual challenges of reproduction and migration, it is surprising that research on moult has largely been so neglected a subject. Lukas Jenni and Raffael Winkler have brought together the widely scattered results of studies on the processes and consequences of moult in birds. This book opens with an overview of the functions of plumage, and of feather maintenance and feather wear, and then introduces the two functions of moult: replacement of worn feathers and adjustment of plumage characteristics and appearance. The body of the book then examines feather-growth and the physiology, energetics and control of moult, and how various other physiological processes interact with moult and may compensate for its costs. Significantly, the authors explain how variations in moult and feather quality affect a bird's overall plumage quality, and they highlight the resulting consequences in terms of physical performance, appearance and signalling. Finally, there is a review of all the various solutions that birds have developed to fit moult into the annual cycle. This long-awaited book covers for the first time all aspects of the biology of moult and fills an important gap in the literature, completing our understanding of how the most important annual events in a bird's life fit together into a coherent whole. It draws on a wide range of information – from penguins to small passerines, from raptors to wildfowl – to highlight the variety of the subject and to pinpoint the many gaps in our knowledge along with avenues for fruitful further research.
Author: H. B. Ginn
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 128
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Book Description
Presents a summary of the plumage of birds, its structure, arrangement and functions and reviews the various types of moult patterns which are found and the ways of recording them. This title also presents species-by-species account of points including the number of flight feathers, the sequence, and season and rate of moult.
Author: Lukas Jenni
Publisher: A&C Black
ISBN: 1408155540
Category : Science
Languages : en
Pages : 236
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Book Description
The moult strategies of birds are not only of importance in their impact on a species' ecology and energetics, but as a valuable tool for anyone studying the migration and population dynamics of bird species. A proper understanding of how feathers are replaced, and the precise differences in appearance of the various feather generations, can allow ringers, scientists and the keen birdwatcher to age first-year and adult birds and to detect the moult strategy of the bird in question. Lukas Jenni and Raffael Winkler have combined these themes and produced a book which will be valuable both to the professional ornithologist and the bird ringer. The first part gives an up to date summary of the moult strategies and moult sequences of European passerines and discusses the ecological consequences of moult. Throughout the book, the authors draw on the enormous amount of data on moult collected by them over 15 years of study which, combined with data from the literature, allow them to present a new synthesis of the subject. The second part of the book is of particular value to ringers. Following a general introduction to ageing, detailed moult profiles are given for 58 species of European passerines representing all the major moult strategies, backed up with useful summary statistics, schematic diagrams of the extent of moult and indications of the variation within each species. For the first time, the extent of partial and suspended moults is presented in detail. The crowning feature of this book is the 480 plus full colour photographs of extended wings which show the entire range of moult patterns and of plumage ageing criteria. An appendix gives supplementary information on ageing birds by the degree of pneumatization of the skull.
Author: Steve N. G. Howell
Publisher: Houghton Mifflin Harcourt
ISBN: 0547152353
Category : Nature
Languages : en
Pages : 280
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Book Description
Citing the lesser-known role of molt in identifying and understanding birds, a detailed reference comprehensively illuminates four key strategies about the molt cycle to provide insights into North American bird history, habitat and migratory patterns.
Author: Erik I. Johnson
Publisher: CRC Press
ISBN: 1351646079
Category : Nature
Languages : en
Pages : 737
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Book Description
Molt is an important avian life history event in which feathers are shed and replaced. The timing, duration, seasonality, extent and pattern of molt follows certain strategies and this book reviews and describes these strategies for nearly 190 species based on information gathered from a 30-year study of Central Amazonian birds. Most species accounts are illustrated with several color photos focusing on wing and tail feather molt, molt limits, and how to use these patterns to accurately age birds. Published in collaboration with and on behalf of the American Ornithological Society, this volume in the highly-regarded Studies in Avian Biology series is a rich source of life history information for ornithologists working on tropical birds.
Author: Gerard Gorman
Publisher: Pelagic Publishing Ltd
ISBN: 1784272892
Category : Science
Languages : en
Pages : 323
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Book Description
This book considers the natural history and cultural symbolism of a most unusual woodpecker – a species that neither excavates nest holes in trees, nor bores into wood to find insect prey. The Wryneck is best renowned for performing a twisting, writhing head and neck display when threatened, but this ground-breaking work reveals many more secrets of its behaviour and evolution. Detailed information is presented on the species' origins, taxonomy, anatomy, appearance, moult, calls, distribution, conservation status, habitats, movements, breeding, diet and relationships, along with a chapter on its closest relative, the Red-throated Wryneck. The text is richly illustrated throughout with high quality photographs as well as sound spectrograms. The author augments his many hours watching Wrynecks with comprehensive literature research, creating what is surely the definitive volume on the species. This all-encompassing and engaging account has been written for a wide audience, whether professional ornithologist, citizen scientist, amateur birder, woodpecker aficionado or simply someone who wishes to learn more about this curious and remarkable bird.
Author: Ian Newton
Publisher: Elsevier
ISBN: 012823752X
Category : Science
Languages : en
Pages : 725
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Book Description
The Migration Ecology of Birds, Second Edition covers all aspects of this absorbing subject, including migratory processes, problems of navigation and vagrancy, timing and physiological control of migration, large-scale movement patterns, the effects of recent climate change, the problems that migrants face, and the factors that limit their populations. This book provides a thorough and in-depth review of the state of the science, with the text supplemented by abundant tables, maps and diagrams. Written by a world-renowned avian ecology and migration researcher, this book reveals the extraordinary adaptability of birds to the variable and changing conditions across the globe. This book represents the most updated and detailed review of bird migration, its evolution, ecology and bird physiology. Written in a clear and readable style, it will appeal not only to migration researchers in the field and ornithologists, but to anyone with an interest in this fascinating subject. Features updated and trending ecological aspects, including various types of bird movements, dispersal and nomadism, and how they relate to food supplies and other external conditions Contains numerous tables, maps, diagrams, a glossary, and a bibliography of more than 3,000 up-to-date references Written by an active researcher with a distinguished career in avian ecology, including migration research
Author: Lewis Stevens
Publisher: Cambridge University Press
ISBN: 9780521612111
Category : Science
Languages : en
Pages : 288
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Book Description
The biology of birds is diverse and frequently differs significantly from that of other vertebrates. Many birds migrate or fly at high altitudes, while egg-laying and feather production places high demands on nutrient uptake and storage. This book is the only comprehensive and up-to-date survey of avian biochemistry and molecular biology available. It emphasises the similarities and differences between birds and other vertebrates, concentrating on new developments. The first section deals with protein, lipid and carbohydrate metabolism, its hormonal control and the adaptations that occur in birds. The second covers the avian genome, gene expression, and avian immunology. Growth and embryological development are also discussed. Avian Biochemistry and Molecular Biology will be of interest to all those working on birds, especially postgraduate students and researchers.
Author: Raymond J. O'Conner
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 336
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Book Description
The first book to approach the morphological, physiological and behavioral development of birds from an ecological and evolutionary perspective. Following the natural development from embyro to mature bird, it covers traditional topics such as breeding biology, egg and clutch size, and breeding success, but integrates these subjects with recent information on energetics, thermoregulation, and mortality rates. This approach allows new insights into previously unrelated phenomena such as mate recognition, navigational ability, song, sibling aggression and fratricide.
