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Author: W. Richard J. Dean
Publisher: Springer Science & Business Media
ISBN: 366208984X
Category : Science
Languages : en
Pages : 208
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Book Description
My interest in the behaviour and movements of birds of arid and semi-arid ecosystems began when my wife, Sue Milton, and I were Roy Siegfried, Director, at that time, of the Percy approached by Prof. FitzPatrick Institute of African Ornithology, to set up a project to investigate granivory in the South African Karoo. Sue and I spent some time finding a suitable study site, setting up accommodations and an automatic weather station at Tierberg, in the southern Karoo near the village of Prince Albert, and planning projects. Among our first projects was a transect where we noted plant phe nology, measured seed densities on the soil surface, counted birds, observed ant activity, measured soil surface temperatures and col lected whatever climate data we could at 40 sites along a 200-km oval route. Along the way, we became interested in the marked presence and absence of birds at certain sites - abundant birds one day, and very few birds at the same site a month later. Subsequent counts along fixed transects through shrublands confirmed that a number of bird species were highly nomadic over short and long distances, locally and regionally, leading to speculation on how widespread these movements were in the arid ecosystems of the world.
Author: W. Richard J. Dean
Publisher: Springer Science & Business Media
ISBN: 366208984X
Category : Science
Languages : en
Pages : 208
Get Book Here
Book Description
My interest in the behaviour and movements of birds of arid and semi-arid ecosystems began when my wife, Sue Milton, and I were Roy Siegfried, Director, at that time, of the Percy approached by Prof. FitzPatrick Institute of African Ornithology, to set up a project to investigate granivory in the South African Karoo. Sue and I spent some time finding a suitable study site, setting up accommodations and an automatic weather station at Tierberg, in the southern Karoo near the village of Prince Albert, and planning projects. Among our first projects was a transect where we noted plant phe nology, measured seed densities on the soil surface, counted birds, observed ant activity, measured soil surface temperatures and col lected whatever climate data we could at 40 sites along a 200-km oval route. Along the way, we became interested in the marked presence and absence of birds at certain sites - abundant birds one day, and very few birds at the same site a month later. Subsequent counts along fixed transects through shrublands confirmed that a number of bird species were highly nomadic over short and long distances, locally and regionally, leading to speculation on how widespread these movements were in the arid ecosystems of the world.
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: Yashpal Singh Malik
Publisher: Springer Nature
ISBN: 981164554X
Category : Medical
Languages : en
Pages : 280
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Book Description
Zoonotic diseases pose a serious threat to global health and economy. Domestic and wild birds play crucial roles in transmission and spread of important zoonotic pathogens, with significant implications on human and avian health. Although zoonotic diseases have been extensively studied, information on various aspects of avian zoonotic pathogens have not been revisited or revised to any great extent. This book is a comprehensive and updated compilation of important zoonotic diseases that are transmitted by domestic and wild birds, and consists of 21 chapters that meticulously describe the (i) etiology and evolution, (ii) complex epidemiology, such as migration pathways in context of disease transmission, (iii) pathogenesis, (iv) clinical signs and necropsy findings, (v) diagnostics including latest molecular assays, and (vi) preventative and control strategies, with an emphasis on therapeutics and prophylaxis, of important zoonotic pathogens (bacterial, fungal, parasitic and viral) of avian origin in humans and birds. Each chapter is aptly supported by interactive tables and figures, and features an updated reference section. This book aims to create awareness and enlighten students of veterinary and human medicine on the role of birds in zoonoses, and would serve as a useful reference for working veterinarians, human doctors, and public health experts.
Author: SueEllen Campbell
Publisher: Univ of California Press
ISBN: 0520269268
Category : Nature
Languages : en
Pages : 334
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Book Description
This book examines mirages and satellite images, swamp-dwelling heroes and Tibetan nomads, cave paintings and popular movies, investigating how we live with the great shaping forces of nature--from fire to changing climates and the intricacies of adaptation. The book illuminates subjects as diverse as the literary life of hollow Earth theories, the links between the Little Ice Age and Frankenstein's monster, and the spiritual allure of deserts and their scarce waters.
Author: Russell Greenberg
Publisher: JHU Press
ISBN: 9780801881077
Category : Nature
Languages : en
Pages : 502
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Book Description
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.
Author: Thibault Datry
Publisher: Academic Press
ISBN: 0128039043
Category : Science
Languages : en
Pages : 624
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Book Description
Intermittent Rivers and Ephemeral Streams: Ecology and Management takes an internationally broad approach, seeking to compare and contrast findings across multiple continents, climates, flow regimes, and land uses to provide a complete and integrated perspective on the ecology of these ecosystems. Coupled with this, users will find a discussion of management approaches applicable in different regions that are illustrated with relevant case studies. In a readable and technically accurate style, the book utilizes logically framed chapters authored by experts in the field, allowing managers and policymakers to readily grasp ecological concepts and their application to specific situations. - Provides up-to-date reviews of research findings and management strategies using international examples - Explores themes and parallels across diverse sub-disciplines in ecology and water resource management utilizing a multidisciplinary and integrative approach - Reveals the relevance of this scientific understanding to managers and policymakers
Author: Sean P. Graham
Publisher: University Alabama Press
ISBN: 0817359990
Category : Nature
Languages : en
Pages : 195
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Book Description
The first in-depth ecological treatment of one of the most frequently visited National Battlefield parks in the country Designated as a battlefield in 1917 and as a park in 1935, the 2,965-acre Kennesaw Mountain National Battlefield Park now preserves far more than the fallen soldiers and military history it was originally founded to commemorate. Written for a diverse range of readers and park visitors, Kennesaw: Natural History of a Southern Mountain provides a comprehensive exploration of the entire park punctuated with humor, colorful anecdotes, and striking photographs of the landscape. Beginning with a brief summary of the park’s human history before transitioning to a discussion of the mountain’s nature, including its unique geology, vegetation, animals, and plant-animal interactions, Graham also focuses on Kennesaw Mountain’s most important ecological and conservation attribute—its status as a globally important bird refuge. This volume addresses the complex interactions and behaviors of numerous species that live in or migrate through the park; yet it is written in a personal, lively, and entertaining style that will appeal to a wide audience. In many cases the book synthesizes information from the scientific literature and renders it in clear, comprehensible terms, making this otherwise arcane material accessible to the general public and underscoring—and hopefully increasing public appreciation for—the extensive biodiversity found in the Southeast.
Author: John H. Rappole
Publisher: Columbia University Press
ISBN: 0231518633
Category : Science
Languages : en
Pages : 459
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Book Description
The purpose of migration, regardless of the distance involved, is to exploit two or more environments suitable for survival or reproduction over time, usually on a seasonal basis. Yet individual organisms can practice the phenomenon differently, and birds deploy unique patterns of movement over particular segments of time. Incorporating the latest research on bird migration, this concise, critical assessment offers contemporary readers a firm grasp of what defines an avian migrant, how the organism came to be, what is known about its behavior, and how we can resolve its enduring mysteries. John H. Rappole's sophisticated survey of field data clarifies key ecological, biological, physiological, navigational, and evolutionary concerns. He begins with the very first migrants, who traded a home environment of greater stability for one of greater seasonality, and uses the structure of the annual cycle to examine the difference between migratory birds and their resident counterparts. He ultimately connects these differences to evolutionary milestones that have shaped a migrant lifestyle through natural selection. Rather than catalogue and describe various aspects of bird migration, Rappole considers how the avian migrant fits within a larger ecological frame, enabling a richer understanding of the phenomenon and its critical role in sustaining a hospitable and productive environment. Rappole concludes with a focus on population biology and conservation across time periods, considering the link between bird migration and the spread of disease among birds and humans, and the effects of global warming on migrant breeding ranges, reaction norms, and macroecology.
Author: E.J. Milner-Gulland
Publisher: Oxford University Press
ISBN: 0199568995
Category : Mathematics
Languages : en
Pages : 280
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Book Description
Migration is a fascinating phenomenon that can contribute to the fundamental structuring of ecosystems. This seminal volume synthesises insights from both mathematical modelling and empirical research in order to generate a unified understanding of the mechanisms underlying migration.
Author: Cherryl Walker
Publisher: African Sun Media
ISBN: 199145001X
Category : Nature
Languages : en
Pages : 364
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Book Description
This inter-disciplinary collection explores significant land-use changes in South Africa’s semi-arid Karoo region and their implications for social justice and the environment, across different scales. It brings together recent scholarship by established and younger researchers, in both the social and the natural sciences, to examine the ways in which the Karoo is being reconfigured as a new ‘resource frontier’ and the tensions and contestations that result. Along with ongoing mining, major investments in astronomy (notably the Square Kilometre Array radio telescope), in renewable and non-renewable sources of energy (solar, wind, potential shale-gas mining), in biodiversity conservation and commercial game farming are reshaping land use and authority in this vast and long-marginalised area. While promising significant benefits to society at large, these developments are built on older histories of dispossession and extractivism – histories that many Karoo residents fear are being reproduced in new forms today. Collectively these dynamics place this unique region at the centre of national and global concerns around climate change, the politics of knowledge production, the conservation of threatened biodiversity, and the meaning and possibility of sustainable development. These issues are explored through a series of case studies of selected developments, complemented by chapters providing more historical context and general overviews. While challenging perceptions of this region as a peripheral wasteland, this collection raises conceptual and policy questions that resonate far beyond the Karoo itself. It also highlights the importance of interdisciplinary collaboration in research aimed not only at understanding but also at responding appropriately to the mounting challenges of our time.
