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Author: Reginald Charles Rainey
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 362
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Book Description
Migrant insect pests represent a constant threat to crops and to health in many parts of the world. In Africa alone, over $100 million is spent annually on the control of a half dozen species of locust. One of the key problems in combating migrant pests is that the insect can disappear for months at a time and reappear with catastrophic effect. With the aid of aircraft and radar, it has been possible to map the movements of migrant pests. The research in this book, carried out on an international scale, has shown that migrant pests can travel longer distances than previously suspected and that their movements are related to the dynamics of the winds and weather systems. These findings throw new light on the flight behavior of the insects as well as on the ecological and evolutionary aspects of flight migration and suggest new options for controlling pests, especially locusts and grasshoppers. In surveying the achievements in this area, the author provides the biologist with an introduction to the relevant aspects of meteorology.
Author: Eberhard Gwinner
Publisher: Springer Science & Business Media
ISBN: 3642745423
Category : Science
Languages : en
Pages : 436
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Book Description
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.
Author: Reginald Charles Rainey
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 362
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Book Description
Migrant insect pests represent a constant threat to crops and to health in many parts of the world. In Africa alone, over $100 million is spent annually on the control of a half dozen species of locust. One of the key problems in combating migrant pests is that the insect can disappear for months at a time and reappear with catastrophic effect. With the aid of aircraft and radar, it has been possible to map the movements of migrant pests. The research in this book, carried out on an international scale, has shown that migrant pests can travel longer distances than previously suspected and that their movements are related to the dynamics of the winds and weather systems. These findings throw new light on the flight behavior of the insects as well as on the ecological and evolutionary aspects of flight migration and suggest new options for controlling pests, especially locusts and grasshoppers. In surveying the achievements in this area, the author provides the biologist with an introduction to the relevant aspects of meteorology.
Author: Peter Berthold
Publisher: Springer Science & Business Media
ISBN: 9783540434085
Category : Science
Languages : en
Pages : 636
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Book Description
The reader of this comprehensive presentation benefits from an outstanding overview of all aspects of the fascinating phenomenon of bird migration. The book is written by leading experts from around the world. The text summarizes reviews and discussions of the most recent hypotheses. In doing so, it covers the entire research field from phenomenology through to ecology, physiology, control mechanisms, orientation, evolutionary aspects and conservation measures. It also examines the most modern methodological approaches including, satellite trakcking, molecular techniques or stable isotope investigations and envisages forthcoming developments in the course of global warming.
Author: Phillip B. Chilson
Publisher: Springer
ISBN: 9783319685748
Category : Science
Languages : en
Pages : 0
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Book Description
This book consists of a diverse collection of chapters that seeks to broaden our fundamental understanding of the ecological function and biological importance of the Earth’s lower atmosphere, which provides a huge living space for billions of animals moving within and across continents. Their migration, dispersal and foraging activities connect water and land habitats within and across continents. Drawing upon the wide-ranging experience of the authors, the book takes an inherently interdisciplinary approach that serves to introduce the reader to the topic of aeroecology, frame some of the basic biological questions that can be addressed within the context of aeroecology, and highlight several existing and emerging technologies that are being used to promote aeroecological studies. The book begins with several background chapters, that provide introduction into such topics as atmospheric science, the concept of the habitat, animal physiology, and methods of navigation. It then continues with a broad discussion of observational methods available to and used by aeroecologists. Finally, several targeted examples of aeroecological studies are presented. Following the development of the chapters, the reader is provided with a unifying framework for investigating how the dynamic properties of meteorological conditions at local, regional, and global scales affect the organisms that depend on the air for foraging and movement. Material presented in the book should be of interest to anyone wishing to gain a comprehensive understanding of the aerosphere itself and the myriad airborne organisms that inhabit and depend upon this environment for their existence. The material should be accessible to a diverse set of readers at all stages of training and across a range of research expertise.
Author: Robert A. McLeman
Publisher: Cambridge University Press
ISBN: 1107022657
Category : Law
Languages : en
Pages : 313
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Book Description
The first comprehensive review of the interaction between climate change and migration; for advanced students, researchers and policy makers.
Author: V. Alistair Drake
Publisher: CABI
ISBN: 9781845936068
Category : Entomology
Languages : en
Pages : 489
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Book Description
Many of the world's most serious agricultural pests are highly migratory. Through the use of special-purpose radars we are provided with insights into their movement and how they learn about and navigate through their environment. This text examines the behaviour and regional variations of these species, as well as the altitude of migration, concentration of insects in layers and how they respond to large and small-scale wind systems. The book relates radar observation of insect movement to complementary and competing methodologies and surveys its capabilities and limitations. It also deals wi
Author: T. A. Coward
Publisher: DigiCat
ISBN:
Category : Fiction
Languages : en
Pages : 72
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Book Description
DigiCat Publishing presents to you this special edition of "The Migration of Birds" by T. A. Coward. DigiCat Publishing considers every written word to be a legacy of humankind. Every DigiCat book has been carefully reproduced for republishing in a new modern format. The books are available in print, as well as ebooks. DigiCat hopes you will treat this work with the acknowledgment and passion it deserves as a classic of world literature.
Author: Paul Kerlinger
Publisher: Stackpole Books
ISBN: 0811744469
Category : Nature
Languages : en
Pages : 206
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Book Description
Information on migratory flight patterns, flight speed and distance, travel seasons, calls of migrating birds, and more.
Author: Willis Isbister Milham
Publisher:
ISBN:
Category : Meteorology
Languages : en
Pages : 660
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Book Description
Author: Helene Bie Lilleør
Publisher: University Press of Southern Denmark
ISBN: 9788790199623
Category : Climatic changes
Languages : en
Pages : 0
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Book Description
Environmental migration is a topic which has given rise to widespread debate and gloomy predictions about the state of the world by 2050, but where rigorous research and empirical evidence are unfortunately in short supply. This study paper reviews the existing research on - and empirical evidence of - how climate change and climate variability in Less Developed Countries (LDCs) affects two main drivers of migration identified by migration models in the economic literature, namely: a) income level differentials between origin and destination areas and income variability in origin areas, and b) how they in turn affect migration. This paper highlights the need for a clearer picture of the driving force behind the link between rainfall and migration, which would in turn benefit policymaking in this area.
