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Books > Science & Mathematics > Biology, life sciences > Zoology & animal sciences > Vertebrates > Birds (ornithology)

Evolutionary Ecology across Three Trophic Levels - Goldenrods, Gallmakers, and Natural Enemies (MPB-29) (Paperback, New):... Evolutionary Ecology across Three Trophic Levels - Goldenrods, Gallmakers, and Natural Enemies (MPB-29) (Paperback, New)
Warren G. Abrahamson, Arthur E. Weis
R3,104 Discovery Miles 31 040 Ships in 10 - 15 working days

In a work that will interest researchers in ecology, genetics, botany, entomology, and parasitology, Warren Abrahamson and Arthur Weis present the results of more than twenty-five years of studying plant-insect interactions. Their study centers on the ecology and evolution of interactions among a host plant, the parasitic insect that attacks it, and the suite of insects and birds that are the natural enemies of the parasite. Because this system provides a model that can be subjected to experimental manipulations, it has allowed the authors to address specific theories and concepts that have guided biological research for more than two decades and to engage general problems in evolutionary biology.

The specific subjects of research are the host plant goldenrod ("Solidago"), the parasitic insect "Eurosta solidaginis" ("Diptera: Tephritidae") that induces a gall on the plant stem, and a number of natural enemies of the gallfly. By presenting their detailed empirical studies of the "Solidago-Eurosta" natural enemy system, the authors demonstrate the complexities of specialized enemy-victim interactions and, thereby, the complex interactive relationships among species more broadly. By utilizing a diverse array of field, laboratory, behavioral, genetic, chemical, and statistical techniques, Abrahamson and Weis present the most thorough study to date of a single system of interacting species. Their interest in the evolutionary ecology of plant-insect interactions leads them to insights on the evolution of species interactions in general. This major work will interest anyone involved in studying the ways in which interdependent species interact.

Birds of Trinidad and Tobago (Paperback, 3rd Edition): Martyn Kenefick, Robin Restall, Floyd Hayes Birds of Trinidad and Tobago (Paperback, 3rd Edition)
Martyn Kenefick, Robin Restall, Floyd Hayes
R743 R688 Discovery Miles 6 880 Save R55 (7%) Ships in 12 - 17 working days

The tropical islands of Trinidad and Tobago enjoy a rich diversity of bird species, including visitors from the nearby mainland and others travelling the migratory flyway from North America. With beautiful colour illustrations and concise descriptions, this new and comprehensive field guide covers every species known to occur on the islands. - 115 colour plates illustrating all the relevant plumages of over 480 species - Concise descriptions of every species, highlighting plumage variation and distinctions from similar species - Up-to-date information on where to watch birds in Trinidad & Tobago - Includes an overview of the geography, climate and habitats of the islands

Birds of Southern Florida (Paperback): G Michael Flieg Birds of Southern Florida (Paperback)
G Michael Flieg
R134 Discovery Miles 1 340 Ships in 12 - 17 working days

There have been over 400 bird species observed in southern Florida, and this guide covers the 248 species most likely to be encountered by birdwatchers in the region. Nearly all of the families found in the area are included, along with some of the rarer, more interesting and spectacular species. Packed with full-colour photographs, each carefully selected to guide identification, and accompanying text that also covers habitat, lifestyle and distribution, this is an ideal pocket-sized guide for travellers.

Effects of Climate Change on Birds (Paperback, 2nd Revised edition): Peter O. Dunn, Anders Pape Moller Effects of Climate Change on Birds (Paperback, 2nd Revised edition)
Peter O. Dunn, Anders Pape Moller
R1,812 Discovery Miles 18 120 Ships in 12 - 17 working days

Climate change issues are attracting rapidly increasing interest from a wide range of biologists due to their unprecedented effects on global biodiversity, although there remains a lack of general knowledge as to the environmental consequences of such rapid change. Compared with any other class of animals, birds provide more long-term data and extensive time series, a more geographically and taxonomically diverse source of information, a richer source of data on a greater range of topics dealing with the effects of climate change, and a longer tradition of extensive research. The first edition of the book was widely cited and this new edition continues to provide an exhaustive and up-to-date synthesis of our rapidly expanding level of knowledge as it relates to birds, highlighting new methods and areas for future research.

Bird Coloration, Volume 1 - Mechanisms and Measurements (Hardcover): Geoffrey E. Hill, Kevin J. Mcgraw Bird Coloration, Volume 1 - Mechanisms and Measurements (Hardcover)
Geoffrey E. Hill, Kevin J. Mcgraw
R4,701 Discovery Miles 47 010 Ships in 12 - 17 working days

One cannot help being struck with wonder at the vivid pink of 10,000 flamingos rising from Lake Nakuru or the glowing red gorget of a ruby-throated hummingbird feeding outside the kitchen window. How birds produce the brilliant and striking coloration of their feathers and other body parts is the focus of this first volume of "Bird Coloration," It has been more than 40 years since the mechanisms of color production of birds have been reviewed and synthesized and in those 40 years new pigments have been discovered, new genetic mechanisms have been described, new theories have been developed, and hundreds of new experiments have been conducted.

Geoffrey Hill and Kevin McGraw have assembled the world's leading experts in perception, measurement, and control of bird coloration to contribute to this book. This sumptuously illustrated volume synthesizes more than 1,500 technical papers in this field. The focus is on the three primary mechanisms of color production--melanin pigmentation, carotenoid pigmentation, and structural coloration--but less common as well as newly described mechanisms of color production are also reviewed in detail. The visual perception of birds and the best ways to collect and analyze color data are, for the first time, presented as part of the review of mechanisms of coloration. This book will be essential reading for biologists studying animal coloration, but it will also be treasured by anyone curious about how birds produce and perceive their bold and brilliant color displays.

The Birds of New Jersey - Status and Distribution (Paperback): William J. Boyle The Birds of New Jersey - Status and Distribution (Paperback)
William J. Boyle; Edited by Kevin T Karlson
R657 R531 Discovery Miles 5 310 Save R126 (19%) Ships in 12 - 17 working days

New Jersey provides some of the most varied and exciting birding in North America, and more than 450 species have been recorded in the state. Yet there has been no comprehensive and readily available guide to the status and distribution of all these species--until now. The Birds of New Jersey is the most up-to-date and succinct guide for the birds of New Jersey and includes all species known to the state from historical times to the present. Featuring over 200 color photos of rarities and regular species, this book authoritatively provides individual entries that include a summary of status and seasonal distribution, and comments on changes over time. Detailed color-coded maps accompany species accounts, and for species recorded five or fewer times, dates and locations of each record are noted. The introduction examines the state's geography, the history of bird records, and background information to species accounts, and the extensive bibliography guides birders to original sources used in the book. This is the essential resource for birders, ornithologists, and nature enthusiasts interested in the birds of New Jersey and the greater surrounding region. * Most up-to-date status and distribution guide for New Jersey and surrounding region * All bird species known to the state * Species accounts describe the preferred habitat and abundance of species * Range maps in color detail seasonal distribution * For migratory birds, spring and fall migration times indicated * More than 200 color photographs of rare and common species

John James Audubon - The Nature of the American Woodsman (Hardcover): Gregory Nobles John James Audubon - The Nature of the American Woodsman (Hardcover)
Gregory Nobles
R1,038 R874 Discovery Miles 8 740 Save R164 (16%) Ships in 10 - 15 working days

John James Audubon's The Birds of America stands as an unparalleled achievement in American art, a huge book that puts nature dramatically on the page. With that work, Audubon became one of the most adulated artists of his time, and America's first celebrity scientist. In this fresh approach to Audubon's art and science, Gregory Nobles shows us that Audubon's greatest creation was himself. A self-made man incessantly striving to secure his place in American society, Audubon made himself into a skilled painter, a successful entrepreneur, and a prolific writer, whose words went well beyond birds and scientific description. He sought status with the "gentlemen of science" on both sides of the Atlantic, but he also embraced the ornithology of ordinary people. In pursuit of popular acclaim in art and science, Audubon crafted an expressive, audacious, and decidedly masculine identity as the "American Woodsman," a larger-than-life symbol of the new nation, a role he perfected in his quest for transatlantic fame. Audubon didn't just live his life; he performed it. In exploring that performance, Nobles pays special attention to Audubon's stories, some of which-the murky circumstances of his birth, a Kentucky hunting trip with Daniel Boone, an armed encounter with a runaway slave-Audubon embellished with evasions and outright lies. Nobles argues that we cannot take all of Audubon's stories literally, but we must take them seriously. By doing so, we come to terms with the central irony of Audubon's true nature: the man who took so much time and trouble to depict birds so accurately left us a bold but deceptive picture of himself.

Biology of the Peregrine & Gryfalcon in Greenland (Paperback): William A Burnham, William G Mattox Biology of the Peregrine & Gryfalcon in Greenland (Paperback)
William A Burnham, William G Mattox
R232 R211 Discovery Miles 2 110 Save R21 (9%) Ships in 12 - 17 working days

A ten year study began in 1972 in West Greenland to investigate the breeding biology of the peregrine falcon. Data on nesting gyrfalcons were also collected. Thirty-four peregrine nesting sites were examined in the 6050 km2 inland study area near Sondre Stromfjord. Limited research also centered in Disko Bugt and Frederikshab. Peregrines were found nesting predominantly on high, south-facing cliffs, which overlooked large areas. The mean minimum distance between peregrine eyries was 7.7 km for the inland area (1972 and 1973) and 55 km for the coast (1974). Approximately 60 percent of the inland nesting sites were occupied each year. A ten-year average production of 1.90 young per occupied site and 2.78 young per successful site was determined. Lapland longspurs, snow buntings, wheatears, and redpolls comprised 90 percent of the peregrines diet. Raven nests and prey availability may be the most significant factor affecting falcon density. Addled peregrine eggs, eggshell fragments, and peregrine prey species were collected. Whole eggs averaged 14.3 ppm wet weight (305 ppm lipid weight ) DDE, while eggshell measurements showed a 16 percent thinning compared with pre-1940 eggs from Greenland. Prey species carried low levels of DDE. The peregrine population appears to be at a near critical contamination level, and a small increase in DDE level could contribute to a population decline. No indication of a decline has been observed during the study, and the population appears stable. The project banded 185 peregrines, from which 8 recoveries occurred. The recoveries suggest peregrines migrate south to winter in South America.

Nests, Eggs, and Incubation - New ideas about avian reproduction (Paperback): D.Charles Deeming, S James Reynolds Nests, Eggs, and Incubation - New ideas about avian reproduction (Paperback)
D.Charles Deeming, S James Reynolds
R1,836 Discovery Miles 18 360 Ships in 12 - 17 working days

Nests, Eggs, and Incubation brings together a global team of leading authorities to provide a comprehensive overview of the fascinating and diverse field of avian reproduction. Starting with a new assessment of the evolution of avian reproductive biology in light of recent research, the book goes on to cover four broad areas: the nest, the egg, incubation, and the study of avian reproduction. New research on nest structures, egg traits, and life history is incorporated, whilst contemporary methodologies such as self-contained temperature probes and citizen science are also discussed. Applied chapters describe how biological knowledge can be applied to challenges such as urbanisation and climate change. The book concludes by suggesting priorities for future research. This book builds upon the foundations laid down by Charles Deeming's 2002 work Avian Incubation (available for readers of this book to access online for free), much of which remains relevant today. Read in conjunction with this previous volume, it provides an up-to-date and thorough review of egg biology, nest function, and incubation behaviour, which will be an essential resource for students of avian biology, as well as both professional and amateur ornithologists working in the field of avian reproduction.

Infectious Disease Ecology of Wild Birds (Hardcover): Jennifer C. Owen, Dana M. Hawley, Kathryn P. Huyvaert Infectious Disease Ecology of Wild Birds (Hardcover)
Jennifer C. Owen, Dana M. Hawley, Kathryn P. Huyvaert
R3,113 Discovery Miles 31 130 Ships in 12 - 17 working days

Birds are the most diverse group of land vertebrates and have evolved to exploit almost every terrestrial niche on earth. They also serve as a natural reservoir for an array of different pathogens that pose serious health risks to human and domestic animal populations, including West Nile virus, highly pathogenic avian influenza viruses, Newcastle Disease virus, and numerous enteric pathogens. Avian diseases are also critically important to the conservation of endemic bird species in many places around the world. This accessible textbook focuses on the dynamics of infectious diseases for wild avian hosts across every level of ecological hierarchy, from the way pathogens interact with the physiology and behavior of individual hosts, the evolutionary and ecological dynamics of the host-parasite interactions occurring within populations, up to the complex biotic and abiotic interactions occurring within biological communities and ecosystems. Parasite-bird interactions are also increasingly occurring in rapidly changing global environments - thus, their ecology is also changing - and this shapes the complex ways by which parasites influence the inter-connected health of birds, humans, and shared ecosystems. Given the key role of birds in ecological communities more broadly, and as the primary host to so many zoonotic pathogens, an understanding of the ecological and evolutionary principles underlying the maintenance, amplification, transmission, and dispersal of these infectious agents is crucial to understanding how to mitigate the negative global impacts of the ever-increasing number of emerging infectious diseases. Although the topics and principles discussed in this book relate to birds, they have a far wider relevance and can also be applied to non-avian, wildlife host-pathogen systems. The COVID-19 pandemic has shown that understanding of disease ecology in wild animal populations is paramount to global health. Infectious Disease Ecology of Wild Birds is suitable for both senior undergraduate and graduate students taking courses in avian disease ecology, ecoimmunology, ecology, and conservation. It will also appeal to the many professional parasitologists, ecoimmunologists, ornithologists, behavioural ecologists, conservation biologists, and wildlife biologists requiring a concise overview of the topic.

Hatchlings - A Coloring Book Anthology (Paperback): Cordelia Norris, Suzanne Matheson Hatchlings - A Coloring Book Anthology (Paperback)
Cordelia Norris, Suzanne Matheson; Edited by Joseph Cadotte
R242 R225 Discovery Miles 2 250 Save R17 (7%) Ships in 9 - 15 working days
Ireland Birds - A Folding Pocket Guide to Familiar Species (Pamphlet, 2nd ed.): James Kavanagh, Waterford Press Ireland Birds - A Folding Pocket Guide to Familiar Species (Pamphlet, 2nd ed.)
James Kavanagh, Waterford Press; Illustrated by Raymond Leung
R147 Discovery Miles 1 470 Ships in 12 - 17 working days

Ireland's diverse habitats - ranging from forests and farmlands to peat bogs and coastlines - is home to about 450 species of resident and migratory birds. This beautifully illustrated guide highlights over 140 familiar and unique species and includes a map featuring prominent bird-viewing areas. Laminated for durability, this lightweight, pocket-sized folding guide is an excellent source of portable information for anyone interested in birds, and is ideal for field use by residents and visitors alike. Made in the USA.www.waterfordpress.com

RSPB Guide to Birdsong (Paperback): Adrian Thomas RSPB Guide to Birdsong (Paperback)
Adrian Thomas 1
R490 R444 Discovery Miles 4 440 Save R46 (9%) Ships in 12 - 17 working days

An RSPB audio and book guide to the birdsong of Britain's best known bird species. Birdsong is the natural soundtrack to our lives and can evoke a powerful sense of time, place and season. Often profoundly beautiful, it is also the most effective way to discover many birds, and birds' songs and calls reveal much about their lives and behaviour. But identifying which bird is making which sound can seem challenging. With this groundbreaking and easy-to-use RSPB guide, Adrian Thomas helps you learn and identify bird sounds step by step and at your own pace. Whether you are an experienced birdwatcher or just enjoy hearing the birds in your garden, this new guide will open your ears like never before to the amazing songs and calls around you. - Together the book and CD combine to create an RSPB-endorsed sound guide to more than 100 songs and calls of 65 garden, woodland and farmland birds - A reference section describes in detail the sounds of a further 185 birds of Britain and north-west Europe - Beautiful colour photographs, annotated sonograms and 'test yourself' sections are also included - The 68-minute narrated recording can also be downloaded to listen to on the go

Nests, Eggs, and Incubation - New ideas about avian reproduction (Hardcover): D.Charles Deeming, S James Reynolds Nests, Eggs, and Incubation - New ideas about avian reproduction (Hardcover)
D.Charles Deeming, S James Reynolds
R3,946 Discovery Miles 39 460 Ships in 12 - 17 working days

Nests, Eggs, and Incubation brings together a global team of leading authorities to provide a comprehensive overview of the fascinating and diverse field of avian reproduction. Starting with a new assessment of the evolution of avian reproductive biology in light of recent research, the book goes on to cover four broad areas: the nest, the egg, incubation, and the study of avian reproduction. New research on nest structures, egg traits, and life history is incorporated, whilst contemporary methodologies such as self-contained temperature probes and citizen science are also discussed. Applied chapters describe how biological knowledge can be applied to challenges such as urbanisation and climate change. The book concludes by suggesting priorities for future research. This book builds upon the foundations laid down by Charles Deeming's 2002 work Avian Incubation (available for readers of this book to access online for free), much of which remains relevant today. Read in conjunction with this previous volume, it provides an up-to-date and thorough review of egg biology, nest function, and incubation behaviour, which will be an essential resource for students of avian biology, as well as both professional and amateur ornithologists working in the field of avian reproduction.

Arctic Wings - Birds of the Arctic National Wildlife Refuge (Mixed media product): Stephen Brown Arctic Wings - Birds of the Arctic National Wildlife Refuge (Mixed media product)
Stephen Brown
R661 R616 Discovery Miles 6 160 Save R45 (7%) Ships in 12 - 17 working days

This is a celebration in word and image of the birds who return each year to the Arctic National Wildlife Refuge to nest - and how they link every point on the globe. 200 colour photos from award-wining nature photographers, Subhankar Banerjee, Steven Kazlowski and Arthur Morris are included. Essays by noted writers, biologists and conservationists, including David Allen Sibley, Debble Miller and former US president Jimmy Carter are provided. It offers life histories of individual bird species from every major group, including shorebirds, songbirds and raptors plus dramatic stories of migration and strategies for survival. It also includes an audio CD of Arctic bird songs.

Shorebird Ecology, Conservation, and Management (Hardcover): Mark A. Colwell Shorebird Ecology, Conservation, and Management (Hardcover)
Mark A. Colwell
R2,038 R1,708 Discovery Miles 17 080 Save R330 (16%) Ships in 12 - 17 working days

Shorebirds are model organisms for illustrating the principles of ecology and excellent subjects for research. Their mating systems are as diverse as any avian group, their migrations push the limits of endurance, and their foraging is easily studied in the open habitats of estuaries and freshwater wetlands. This comprehensive text explores the ecology, conservation, and management of these fascinating birds. Beginning chapters examine phylogenetic relationships between shorebirds and other birds, and cover shorebird morphology, anatomy, and physiology. A section on breeding biology looks in detail at their reproductive biology. Because shorebirds spend much of their time away from breeding areas, a substantial section on non-breeding biology covers migration, foraging ecology, and social behavior. The text also covers shorebird demography, population size, and management issues related to habitat, predators, and human disturbances. Throughout, it emphasizes applying scientific knowledge to the conservation of shorebird populations, many of which are unfortunately in decline.

Storm Petrel and the Owl of Athena (Hardcover): Louis Joseph Halle Storm Petrel and the Owl of Athena (Hardcover)
Louis Joseph Halle
R3,504 Discovery Miles 35 040 Ships in 10 - 15 working days

The first part of this book describes a wide variety of seabirds from the author's personal observation and knowledge of their ways; the second offers reflective essays on the general theme of birds in their relation to man. Originally published in 1970. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.

Birds of Montana Field Guide (Paperback, 2nd Revised edition): Stan Tekiela Birds of Montana Field Guide (Paperback, 2nd Revised edition)
Stan Tekiela
R340 Discovery Miles 3 400 Ships in 12 - 17 working days

Get the New Edition of Montana's Best-Selling Bird Guide Learn to identify birds in Montana, and make bird-watching even more enjoyable. With Stan Tekiela's famous field guide, bird identification is simple and informative. There's no need to look through dozens of photos of birds that don't live in your area. This book features 142 species of Montana birds organized by color for ease of use. Do you see a yellow bird and don't know what it is? Go to the yellow section to find out. Book Features: 142 species: Only Montana birds Simple color guide: See a yellow bird? Go to the yellow section Compare feature: Decide between look-alikes Stan's Notes: Naturalist tidbits and facts Professional photos: Crisp, stunning full-page images This new edition includes more species, updated photographs and range maps, revised information, and even more of Stan's expert insights. So grab Birds of Montana Field Guide for your next birding adventure-to help ensure that you positively identify the birds that you see.

Ten Thousand Birds - Ornithology since Darwin (Hardcover): Tim Birkhead, Jo Wimpenny, Bob Montgomerie Ten Thousand Birds - Ornithology since Darwin (Hardcover)
Tim Birkhead, Jo Wimpenny, Bob Montgomerie 1
R1,218 R1,143 Discovery Miles 11 430 Save R75 (6%) Ships in 12 - 17 working days

"Ten Thousand Birds" provides a thoroughly engaging and authoritative history of modern ornithology, tracing how the study of birds has been shaped by a succession of visionary and often-controversial personalities, and by the unique social and scientific contexts in which these extraordinary individuals worked. This beautifully illustrated book opens in the middle of the nineteenth century when ornithology was a museum-based discipline focused almost exclusively on the anatomy, taxonomy, and classification of dead birds. It describes how in the early 1900s pioneering individuals such as Erwin Stresemann, Ernst Mayr, and Julian Huxley recognized the importance of studying live birds in the field, and how this shift thrust ornithology into the mainstream of the biological sciences. The book tells the stories of eccentrics like Colonel Richard Meinertzhagen, a pathological liar who stole specimens from museums and quite likely murdered his wife, and describes the breathtaking insights and discoveries of ambitious and influential figures such as David Lack, Niko Tinbergen, Robert MacArthur, and others who through their studies of birds transformed entire fields of biology.

"Ten Thousand Birds" brings this history vividly to life through the work and achievements of those who advanced the field. Drawing on a wealth of archival material and in-depth interviews, this fascinating book reveals how research on birds has contributed more to our understanding of animal biology than the study of just about any other group of organisms.

A Passion for Birds - American Ornithology after Audubon (Paperback, Revised): Mark V. Barrow Jr A Passion for Birds - American Ornithology after Audubon (Paperback, Revised)
Mark V. Barrow Jr
R1,277 R1,033 Discovery Miles 10 330 Save R244 (19%) Ships in 12 - 17 working days

In the decades following the Civil War--as industrialization, urbanization, and economic expansion increasingly reshaped the landscape--many Americans began seeking adventure and aesthetic gratification through avian pursuits. By the turn of the century, hundreds of thousands of middle-and upper-class devotees were rushing to join Audubon societies, purchase field guides, and keep records of the species they encountered in the wild. Mark Barrow vividly reconstructs this story not only through the experiences of birdwatchers, collectors, conservationists, and taxidermists, but also through those of a relatively new breed of bird enthusiast: the technically oriented ornithologist. In exploring how ornithologists struggled to forge a discipline and profession amidst an explosion of popular interest in natural history, "A Passion for Birds" provides the first book-length history of American ornithology from the death of John James Audubon to the Second World War.

Barrow shows how efforts to form a scientific community distinct from popular birders met with only partial success. The founding of the American Ornithologists' Union in 1883 and the subsequent expansion of formal educational and employment opportunities in ornithology marked important milestones in this campaign. Yet by the middle of the twentieth century, when ornithology had finally achieved the status of a modern profession, its practitioners remained dependent on the services of birdwatchers and other amateur enthusiasts. Environmental issues also loom large in Barrow's account as he traces areas of both cooperation and conflict between ornithologists and wildlife conservationists.

Recounting a colorful story based on the interactions among a wide variety of bird-lovers, this book will interest historians of science, environmental historians, ornithologists, birdwatchers, and anyone curious about the historical roots of today's birding boom.

Eagle Days (Paperback): Stuart Rae Eagle Days (Paperback)
Stuart Rae
R593 Discovery Miles 5 930 Ships in 12 - 17 working days
Interspecific Competition in Birds (Paperback): Andre A. Dhondt Interspecific Competition in Birds (Paperback)
Andre A. Dhondt
R2,111 Discovery Miles 21 110 Ships in 12 - 17 working days

In nature there exist three main types of biotic interactions between individuals of different species: competition, predation, and mutualism. All three exert powerful selection pressures, and all three shape communities. However, the question of how important interspecific competition in nature really is remains controversial and unresolved. This book provides a critical and exhaustive review of the topic. Although the examples are limited mostly to birds (interspecific competition and community structure have been exhaustively studied in this animal group, and a lot of experimental data are available), the conclusions reached have a far broader relevance to population ecologists in general. The book reasons that the coexistence of species is the result of both past and presently on-going interspecific competition. Furthermore, understanding the importance of interspecific competition in natural systems will be increasingly important when modelling the effects of climate change on populations.

Moult and Ageing of European Passerines (Hardcover, 2nd edition): Lukas Jenni, Raffael Winkler Moult and Ageing of European Passerines (Hardcover, 2nd edition)
Lukas Jenni, Raffael Winkler
R2,246 Discovery Miles 22 460 Ships in 12 - 17 working days

THE BTO/BRITISH BIRDS BOOK OF THE YEAR 2020 A brand-new, completely revised second edition of Jenni and Winkler's classic guide, updated and improved for the next generation of ringers and professional ornithologists. The moult strategies of birds exert an important influence on their behaviour and energetics, and also provide the basis of valuable tools for study. A proper understanding of how feathers are replaced and the precise differences in the appearance of the various feather generations can allow ringers, scientists and keen birdwatchers to age individual birds, and to distinguish between first-year and adult birds. Understanding the moult strategy of a species also provides insights into its general and migration ecology, and allows detailed studies of many aspects of its population dynamics. Lukas Jenni and Raffael Winkler have studied moult across a wide range of bird species for decades, and in this book bring their observations together to produce a valuable reference for both professional ornithologists and bird ringers. This second edition has been completely updated and revised, with 16 new species accounts added, bringing the total covered to 74. The first part of the book provides 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 that they have collected over 40 years of study and which, combined with data from the literature, allow them to present a thorough synthesis of the subject. The second part is of particular value to ringers. Following a general introduction to ageing, detailed moult profiles are given for 74 European passerine species, illustrating all of the major moult strategies and including useful summary statistics, schematic diagrams of the extent of moult and indications of the variation within each species. The main moult strategies are illustrated with schematic graphs, and the moult strategies and extent of moult of every European passerine species are summarised in tabular form. The crowning feature of this book is its collection of more than 600 full-colour photographs of extended wings, which show the entire range of moult patterns and plumage-ageing criteria. An appendix gives supplementary information on ageing birds by the degree of pneumatisation of the skull. Large in format, packed with high-quality photography and lavish in production specifications, this second edition of Moult and Ageing in European Passerines is both a major reference for ornithologists, zoologists, bird ringers and dedicated birdwatchers, and a work of great scholarship and beauty.

A Field Guide to the Birds of Sri Lanka (Paperback, 2nd Revised edition): John Harrison, Tim Worfolk A Field Guide to the Birds of Sri Lanka (Paperback, 2nd Revised edition)
John Harrison, Tim Worfolk
R1,966 Discovery Miles 19 660 Ships in 12 - 17 working days

A Field Guide to the Birds of Sri Lanka is the first fully comprehensive, modern field guide to this ornithologically fascinating country. All of Sri Lanka's official avian species are described in the text and depicted in a collection of stunning colour plates painted by Tim Worfolk, one of Britain's leading bird artists. The text, accessible to experienced ornithologists and beginners alike, highlights the important identification features such as plumage variations, size, calls and songs, range, distribution, and status for every species. The plates illustrate the various plumage variations for each bird, and show the birds perched and also in flight, where relevant to their identification. An introduction to the guide describes briefly some of the best sites for watching Sri Lanka's abundant avifauna, and provides useful contact addresses for the prospective traveller. This will be an essential purchase for all birdwatchers travelling to the region; the beautiful plates and clearly-written text will also make it a must-have for anyone who loves birds, and Sri Lankan birds in particular.

A Field Guide to the Birds of Sri Lanka (Hardcover, 2nd Revised edition): John Harrison, Tim Worfolk A Field Guide to the Birds of Sri Lanka (Hardcover, 2nd Revised edition)
John Harrison, Tim Worfolk
R3,560 Discovery Miles 35 600 Ships in 12 - 17 working days

A Field Guide to the Birds of Sri Lanka is the first fully comprehensive, modern field guide to this ornithologically fascinating country. All of Sri Lanka's official avian species are described in the text and depicted in a collection of stunning colour plates painted by Tim Worfolk, one of Britain's leading bird artists. The text, accessible to experienced ornithologists and beginners alike, highlights the important identification features such as plumage variations, size, calls and songs, range, distribution, and status for every species. The plates illustrate the various plumage variations for each bird, and show the birds perched and also in flight, where relevant to their identification. An introduction to the guide describes briefly some of the best sites for watching Sri Lanka's abundant avifauna, and provides useful contact addresses for the prospective traveller. This will be an essential purchase for all birdwatchers travelling to the region; the beautiful plates and clearly-written text will also make it a must-have for anyone who loves birds, and Sri Lankan birds in particular.

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