Download or read book Evolution de la migration longue distance chez les oiseaux written by Paul Dufour and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Si de nombreux animaux effectuent des migrations saisonnières, la migration des oiseaux demeure l'une des plus spectaculaires du règne animal et c'est d'abord parce qu'elle fascine les humains que cette migration est la plus étudiée depuis toujours. Mais malgré cet engouement précoce de la communauté scientifique, d'importantes interrogations persistent. Parmi celles-ci, les scénarios biogéographiques qui façonnent la distribution des espèces migratrices ou qui ont conduit des espèces ou des lignées entières à évoluer vers un comportement de migration saisonnière à longue distance restent peu compris.L'objectif de ma thèse était d'aborder ces questions à différents niveaux taxonomiques, afin d'étudier les implications écologiques et évolutives de la migration à longue distance chez les oiseaux. Plus précisément, (1) je me suis d'abord intéressé aux scénarios d'évolution biogéographique et des niches climatiques qui ont conduit à l'émergence de stratégies de migration géographique saisonnière à grande distance. (2) Resserrant le cadre taxonomique aux Charadriiformes, j'ai approfondi mes recherches sur la biogéographie de la migration en abordant la question du rôle de la migration dans les processus de diversification et la mise en place des gradients globaux de biodiversité. Pour mieux comprendre ces mécanismes évolutifs, j'ai également étudié (3) comment l'évolution de la coloration est reliée à l'évolution de stratégies de migration chez les Laridae et (4) l'influence de ces mouvements longues distances sur les autres évènements du cycle annuel chez une espèce d'oiseau marin de l'Arctique. (5) Enfin, à l'échelle intra-spécifique, je me suis penché sur la mise en place de nouvelles voies de migration chez deux de passereaux d'origine sibérienne pour explorer la question des rapides changements de distribution.Dans l'ensemble, les résultats de ces études montrent que les différentes facettes de l'écologie et l'évolution sont fortement intriquées pour comprendre l'évolution du comportement de migration longue distance. Ils montrent également l'importance de confronter plusieurs échelles taxonomiques et plusieurs facteurs, notamment temporels, pour appréhender l'histoire évolutive de ce comportement. Enfin, ils soulignent la difficulté de prévoir les changements de distribution des oiseaux migrateurs dans un contexte de changements globaux.
Download or read book Les migrations longue distance chez les oiseaux written by Laurent Brisbois and published by . This book was released on 2009 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Avian Migration written by Peter Berthold and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: P. Berthold and E. Gwinnd Bird migration is an intriguing aspect of the living world - so much so that it has been investigated for as long, and as thoroughly, as almost any other natural phenomenon. Aristotle, who can count as the founder of scientific ornithology, paid very close attention to the migrations of the birds he ob served, but it was not until the reign of Friedrich II, in the first half of the 13th century, that reliable data began to be obtained. From then on, the data base grew rapidly. Systematic studies of bird migration were introduced when the Vogelwarte Rossitten was founded, as the first ornithological biological observation station in the world (see first chapter "In Memory of Vogelwarte Rossitten"). This area later received enormous impetus when ex perimental research on the subject was begun: the large-scale bird-ringing experiment initiated in Rossitten in 1903 by Johannes Thienemann (who was inspired by the pioneering studies of C. C. M. Mortensen), the experiments on photoperiodicity carried out by William Rowan in the 1920s in Canada and retention and release experiments performed by Thienemann in the 1930s in Rossitten, the first experimental study on the orientation of migratory birds. After the Second World War, migration research, while continuing in the previous areas, also expanded into new directions such as radar ornithology, ecophysiology and hormonal control mechanisms, studies of evolution, ge netics, telemetry and others.
Download or read book Birds of Two Worlds written by Russell Greenberg and published by JHU Press. This book was released on 2005-05-02 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: For centuries biologists have tried to understand the underpinnings of avian migration: where birds go and why, why some migrate and some do not, how they adapt to a changing environment, and how migratory systems evolve. Twenty-five years ago the answers to many of these questions were addressed by a collection of migration experts in Keast and Morton's classic work Migrant Birds in the Neotropics. In 1992, Hagan and Johnston published a follow-up book, Ecology and Conservation of Neotropical Migrant Landbirds. In Birds of Two Worlds Russell Greenberg and Peter Marra bring together the world's experts on avian migration to discuss its ecology and evolution. The contributors move the discussion of migration to a global stage, looking at all avian migration systems and delving deeper into the evolutionary foundations of migratory behavior. Readers interested in the biology, behavior, ecology, and evolution of birds have waited a decade to see a worthy successor to the earlier classics. Birds of Two Worlds will complete the trilogy and become indispensable for ornithologists, evolutionary biologists, serious birders, and public and academic libraries.
Download or read book Bird Migration written by Eberhard Gwinner and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: E. GWINNER! The phenomenon of bird migration with its large scale dimensions has attracted the attention of naturalists for centuries. Worldwide billions of birds leave their breeding grounds every autumn to migrate to areas with seasonally more favor able conditions. Many of these migrants travel only over a few hundred kilo meters but others cover distances equivalent to the circumference of the earth. Among these long-distance migrants are several billion birds that invade Africa every autumn from their West and Central Palaearctic breeding areas. In the Americas and in Asia the scope of bird migration is of a similar magnitude. Just as impressive as the numbers of birds are their achievements. They have to cope with the enormous energetic costs of long-distance flying. particularly while crossing oceans and deserts that do not allow replenishment of depleted fat reserves. They have to appropriately time the onset and end of migrations. both on a daily and annual basis. And finally. they have to orient their migratory movements in space to reach their species- or population-specific wintering and breeding grounds, irrespective of the variable climatic conditions along their migratory routes.
Download or read book Bird Migration and Global Change written by George W. Cox and published by Island Press. This book was released on 2010-07-07 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Changes in seasonal movements and population dynamics of migratory birds in response to ongoing changes resulting from global climate changes are a topic of great interest to conservation scientists and birdwatchers around the world. Because of their dependence on specific habitats and resources in different geographic regions at different phases of their annual cycle, migratory species are especially vulnerable to the impacts of climate change. In Bird Migration and Global Change, eminent ecologist George W. Cox brings his extensive experience as a scientist and bird enthusiast to bear in evaluating the capacity of migratory birds to adapt to the challenges of a changing climate. Cox reviews, synthesizes, and interprets recent and emerging science on the subject, beginning with a discussion of climate change and its effect on habitat, and followed by eleven chapters that examine responses of bird types across all regions of the globe. The final four chapters address the evolutionary capacity of birds, and consider how best to shape conservation strategies to protect migratory species in coming decades. The rate of climate change is faster now than at any other moment in recent geological history. How best to manage migratory birds to deal with this challenge is a major conservation issue, and Bird Migration and Global Change is a unique and timely contribution to the literature.
Download or read book How Birds Migrate written by Paul Kerlinger and published by Stackpole Books. This book was released on 2008-12-16 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Information on migratory flight patterns, flight speed and distance, travel seasons, calls of migrating birds, and more.
Download or read book The Avian Migrant written by John Rappole and published by Columbia University Press. This book was released on 2013-06-25 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: "John H. Rappole's sophisticated survey of field data clarifies key ecological, biological, physiological, navigational, and evolutionary concerns"--Publisher.
Download or read book Ecological and Evolutionary Processes that Shape the Long distance Migrations of Birds written by Camila Gómez Montes and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Migration results in predictable, seasonal movements of millions of animals across the globe. Not only is migration an impressive natural phenomenon, but it is involved in ecological and evolutionary processes ranging from determining individual fitness and population dynamics, to influencing speciation and ecosystem functioning. All events in the annual cycle of migrants are intricately linked. One event which has been shown to significantly affect population dynamics, is migration. The strategies birds use to optimize their movements are known as migratory strategies. Depending on body condition, age, sex, date, weather, distance to destination and evolutionary constraints, birds may choose to fly directly or make few stops along the way. How birds carry out this optimization of their migratory strategies is not well understood and likely varies in different species. By studying bird migration with the use behavioral observations, capture-recapture, intercontinental telemetry, stable isotopes and genetics, I generated information about the evolution of migratory strategies, how different biotic and abiotic factors affect them, how flexible these strategies appear in the face of climatic or habitat changes and the implications this may have on migratory species conservation. My thesis is divided into four chapters. Chapter 1 proposes a method for the assessment of seasonal changes in animal diets, and an evaluation of the importance of diet during migration. Chapter 2 integrates behavioral data with remote tracking to understand how birds behave during stopover and to quantify the effect of a stopover on the pace of migration. Chapter 3 explores how a migratory bird links two of the planet's greatest forests, the Amazon and the Boreal, via the world's most irreplaceable natural region and center of endemism, the Sierra Nevada de Santa Marta. Finally, Chapter 4 evaluates the temporal dynamics of climatic niche evolution and its relation to migratory behavior.
Download or read book Seeds 3rd Edition written by Robert S Gallagher and published by CABI. This book was released on 2013-12-06 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 3rd edition of Seeds: The Ecology of Regeneration in Plant Communities highlights the many advances in the field of seed ecology and its relationship to plant community dynamics that have taken place in recent years. The new edition also features chapters on seed development and morphology, seed chemical ecology, implications of climate change on regeneration by seed, and the functional role of seed banks in agricultural and natural ecosystems. The book is aimed at advanced level students and researchers in the fields of seed science, seed ecology and plant ecology.
Download or read book Bird Migration written by John H. Rappole and published by JHU Press. This book was released on 2022-02-22 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: A fascinating and nuanced exploration of why, how, and which birds migrate. Bird migration captivates the human imagination, yet for most of us, key aspects of the phenomenon remain a mystery. How do birds sense the ideal moment to take wing, and once the epic journey has begun, how do they find their distant destinations? Fresh insights about avian movements are still constantly emerging, powered by new tools like molecular genetics and transmitter miniaturization. In this book, renowned ornithologist and author John H. Rappole reveals intriguing results of recent scientific studies on migration, explaining their importance for birders, nature lovers, and researchers alike. Debunking misconceptions about the lives of birds that have persisted for thousands of years, Rappole explores unexpected causes and previously misunderstood aspects of the annual migration cycle. From the role of migrating birds in zoonotic disease transmission to climate change's impact on migration patterns, Rappole tackles crucial questions and ensures that readers come away with a new understanding of why and how birds migrate.
Download or read book Control of Bird Migration written by P. Berthold and published by Springer Science & Business Media. This book was released on 1996 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Considers all aspects of research since experimentation began on the subject in 1925
Download or read book The Birds of Africa Volume VIII written by Roger Safford and published by Bloomsbury Publishing. This book was released on 2020-09-17 with total page 1025 pages. Available in PDF, EPUB and Kindle. Book excerpt: Universally recognised as by far the most authoritative work ever published on the subject, The Birds of Africa is a superb multi-contributor reference work, with encyclopaedic species texts, stunning paintings of all species and numerous subspecies, informative line drawings, detailed range maps, and extensive bibliographies. Each volume contains an Introduction that brings the reader up to date with the latest developments in African ornithology, including the evolution and biogeography of African birds. Diagnoses of the families and genera, often with superspecies maps, are followed by the comprehensive species accounts themselves. These include descriptions of range and status, field characters, voice, general habits, food, and breeding habits. Full bibliographies, acoustic references, and indexes complete this scholarly work of reference. This eighth and final volume covers the Malagasy region which comprises Madagascar and the various islands and archipelagos of the Indian Ocean including the Seychelles, the Comoros, Mauritius and Réunion. Every resident and migrant species is covered in full detail, comparable to other volumes in the series, and with a colour map for each species. Vagrants are treated in less detail. All species are illustrated on a beautiful series of 64 colour plates, with original artwork from John Gale and Brian Small. This is a major work of reference on the birds of the region and will remain the standard text for many years to come.
Download or read book Wings over the Great Plains Bird Migrations in the Central Flyway written by Paul Johnsgard and published by Lulu.com. This book was released on 2012-11-19 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Central Flyway has been recognized as a collective North-South migratory pathway centered on the North American Great Plains for nearly a century, but it has never been analyzed as the species that most closely follow it, or the major stopping points used by those species on their journeys between their northern breeding and southern wintering grounds. A total of 114 U.S. and 21 Canadian localities of special importance to birds migrating within the Central Flyway are identified and described in detail. Judging from available regional, state and local information, nearly 400 species of 50 avian families regularly use the Central Flyway during their migrations. Nearly 90 Central Flyway species have wintering areas parly extending variably far into the Neotropic zoogeographic realm, and at least 50 of these winter entirely within the Neotropic realm. A few of these species undertake some of the longest known migrations of all birds, in excess of 8,000 miles in each direction. Seven maps, 49 figures and over 100 literature citations are included."--Abstract.
Download or read book Bird Migration written by Peter Berthold and published by . This book was released on 2001 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ten years have passed since the first edition of this book. During that time the field of bird migration has experienced many advances which are reflected in this second edition. No other book exists to bring together the vast amount of information currently available on the subject of bird migration. Includes discussion of evolution and history of bird migration, physiology, orientation mechanisms and threats to migrations and is accessible to experts as well as amateurs.
Download or read book volution de la ph nologie de la nidification des oiseaux la For t Montmorency de 1995 2020 written by Sara Boukherroub and published by . This book was released on 2021 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: La phénologie de migration de nombreuses espèces d'oiseaux a changé depuis quelques décennies, mais à ce jour on ne sait pas jusqu'à quel point de tels changements se reflètent sur la phénologie de la nidification. Étudier la nidification des oiseaux de la forêt boréale, souvent surnommée la crèche d'oiseaux de l'Amérique du Nord, est semé de défis à cause de l'étendue géographique. J'ai évalué la phénologie de nidification des oiseaux chanteurs durant les 26 dernières années dans une forêt boréale de l'Est du Canada, la Forêt Montmorency. Je me suis basée sur l'observation du transport de nourriture chez les adultes comme indice du statut parental, en tenant compte de la détection imparfaite de ce statut par l'entremise de modèles hiérarchiques d'occupation de sites. Les modèles ont révélé un recul de deux semaines de la saison de nidification chez les résidents et les migrateurs de courte distance et d'un mois chez les migrateurs de longue distance durant la période d'étude. Ces résultats vont à l'encontre des attentes liées à l'avancée de la migration printanière en Amérique du Nord et nous rappellent l'intérêt des études régionales lorsque nous nous intéressons à la phénologie de la reproduction.
Download or read book Les migrations des oiseaux written by Fernand Cathelin and published by . This book was released on 1920 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
