Pattern and Process in Host-Parasitoid Interactions

Pattern and Process in Host-Parasitoid Interactions PDF Author: Bradford A. Hawkins
Publisher: Cambridge University Press
ISBN: 0521460298
Category : Medical
Languages : en
Pages : 204

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Book Description
How is the staggering biodiversity of the parasitoid insects maintained? This book, first published in 1994, explores patterns in host-parasitoid interactions, including parasitoid community richness, the importance of parasitoids as mortality factors, and their impact on host densities as determined by the outcomes of parasitoid introductions for biological control. It documents general patterns using data sets generated from the global literature and evaluates potential underlying biological, ecological and evolutionary mechanisms. A theme running throughout the book is the importance of host refuges as a major constraint on host-parasitoid interactions. Much can be learnt from the analysis of broad patterns; a few simple rules can go a long way in explaining the major components of these interactions. This book will be an invaluable resource for researchers interested in community ecology, population biology, entomology and biological control.

Pattern and Process in Host-Parasitoid Interactions

Pattern and Process in Host-Parasitoid Interactions PDF Author: Bradford A. Hawkins
Publisher: Cambridge University Press
ISBN: 0521460298
Category : Medical
Languages : en
Pages : 204

Get Book Here

Book Description
How is the staggering biodiversity of the parasitoid insects maintained? This book, first published in 1994, explores patterns in host-parasitoid interactions, including parasitoid community richness, the importance of parasitoids as mortality factors, and their impact on host densities as determined by the outcomes of parasitoid introductions for biological control. It documents general patterns using data sets generated from the global literature and evaluates potential underlying biological, ecological and evolutionary mechanisms. A theme running throughout the book is the importance of host refuges as a major constraint on host-parasitoid interactions. Much can be learnt from the analysis of broad patterns; a few simple rules can go a long way in explaining the major components of these interactions. This book will be an invaluable resource for researchers interested in community ecology, population biology, entomology and biological control.

Parasitoid Population Biology

Parasitoid Population Biology PDF Author: Michael E. Hochberg
Publisher: Princeton University Press
ISBN: 0691230897
Category : Science
Languages : en
Pages : 381

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Book Description
Extraordinary in the diversity of their lifestyles, insect parasitoids have become extremely important study organisms in the field of population biology, and they are the most frequently used agents in the biological control of insect pests. This book presents the ideas of seventeen international specialists, providing the reader not only with an overview but also with lively discussions of the most salient questions pertaining to the field today and prescriptions for avenues of future research. After a general introduction, the book divides into three main sections: population dynamics, population diversity, and population applications. The first section covers gaps in our knowledge in parasitoid behavior, parasitoid persistence, and how space and landscape affect dynamics. The contributions on population diversity consider how evolution has molded parasitoid populations and communities. The final section calls for novel approaches toward resolving the enigma of success in biological control and questions why parasitoids have been largely neglected in conservation biology. Parasitoid Population Biology will likely be an important influence on research well into the twenty-first century and will provoke discussion amongst parasitoid biologists and population biologists. In addition to the editors, the contributors are Carlos Bernstein, Jacques Brodeur, Jerome Casas, H.C.J. Godfray, Susan Harrison, Alan Hastings, Bradford A. Hawkins, George E. Heimpel, Marcel Holyoak, Nick Mills, Bernard D. Roitberg, Jens Roland, Michael R. Strand, Teja Tscharntke, and Minus van Baalen.

Vertical Food Web Interactions

Vertical Food Web Interactions PDF Author: Konrad Dettner
Publisher: Springer Science & Business Media
ISBN: 364260725X
Category : Science
Languages : en
Pages : 395

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Book Description
In the past years, much work has been carried out on either life-history evolu tion or structure and function of food webs. However, most studies dealt with only one of these areas and often touched upon the other only marginally. In this volume, we try to synthesize aspects of both disciplines and will concen trate on how the interactions between organisms depend on their life-history strategies. Since this is a very comprehensive topic, this volume will focus on vertical interactions to remain within a clearly arranged field. We present some scenaria based on life-history variation of resource and consumer, and show how particular patterns of life-history combinations will lead to particular patterns in trophic relationships. We want to deal with the selective forces underlying these patterns: the degree of specificity of the consumers deter mines the dependence on its resource, and its adaptation to the spatial and temporal availability of the resource. In this respect, the spatial structure of the resource and its "quality" may play an important role. The impact of natural enemies is another important selective force which may influence the evolu tion of interactions between species and the structure of communities. Here, the acquirement of an enemy-free space may provide selective adavantages. The importance of the impact of enemies is also expressed by the development of numerous and sometimes very subtle defense strategies. This will be dem onstrated especially for various aspects of chemical ecology.

Insect Populations In theory and in practice

Insect Populations In theory and in practice PDF Author: Jack P. Dempster
Publisher: Springer Science & Business Media
ISBN: 9401149143
Category : Science
Languages : en
Pages : 494

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Book Description
Insects are by far the largest group of animals on Earth, with over a million described species, and they occupy a wide range of ecological niches - they may be herbivores, predators, parasites or decomposers. Some are of particular economic importance as pests of agriculture and forestry, as vectors of animal and human disease, or as species of interest to wildlife conservation. Thus an understanding of the processes determining their numbers is of considerable practical value. Entomologists have played a leading role in developing a theoretical basis to Population Ecology, but we still do not have adequate experimental and observational proof for many of the theoretical ideas that have been proposed. As a result, the subject has been beset with arguments for more than 50 years. This volume attempts to reconcile some of these controversies, while also reviewing the current state of our knowledge. The editors have drawn together an international list of contributors whose views reflect a range of opinions on how natural populations are stabilised. They have succeeded in producing a book that both covers the main alternative views in population theory and contains some of the best recent field studies of insect populations. This Royal Entomological Society Symposium volume will be of great interest to all entomologists and ecologists, particularly those who wish to know more about Population Dynamics.

Predators and Parasitoids

Predators and Parasitoids PDF Author: Opender Koul
Publisher: CRC Press
ISBN: 0203302567
Category : Science
Languages : en
Pages : 204

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Book Description
Their natural enemies largely determine the population size and dynamic behavior of many plant-eating insects. Any reduction in enemy number can result in an insect outbreak. Applied biological control is thus one strategy for restoring functional biodiversity in many agroecosystems. Predators and Parasitoids addresses the role of natural enemies i

The Role of Body Size in Multispecies Systems

The Role of Body Size in Multispecies Systems PDF Author: Andrea Belgrano
Publisher: Academic Press
ISBN: 0123864755
Category : Nature
Languages : en
Pages : 349

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Book Description
This thematic volume represents an important and exciting benchmark in the study of integrative ecology, synthesizing and showcasing current research and highlighting future directions for the development of the field.

General Technical Report NC.

General Technical Report NC. PDF Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 468

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Book Description


Insect Sampling in Forest Ecosystems

Insect Sampling in Forest Ecosystems PDF Author: Simon R. Leather
Publisher: John Wiley & Sons
ISBN: 1405140291
Category : Science
Languages : en
Pages : 320

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Book Description
Insect Sampling in Forest Ecosystems highlights the problems faced by entomologists working in forest ecosystems. Insects play a major part in all aspects of ecology Brings together the methodology needed to investigate insects through the various strata of the forest canopy Covers techniques associated with various specialised groups of forest insects Each chapter is backed up by a sound approach to experimental design and data analysis Essential reading for advanced students and researchers as well as teachers

The Ecology and Evolution of Gall-forming Insects

The Ecology and Evolution of Gall-forming Insects PDF Author: Peter W. Price
Publisher:
ISBN:
Category : Gall insects
Languages : en
Pages : 232

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Book Description


Encyclopedia of Environment and Society

Encyclopedia of Environment and Society PDF Author: Paul Robbins
Publisher: SAGE Publications
ISBN: 1452265585
Category : Science
Languages : en
Pages : 2742

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Book Description
"As befits the topic, this beautifully packaged, wonderfully illustrated, interdisciplinary resource has more than 1200 entries written by specialists. A helpful reader′s guide groups topics like agriculture, conservation and ecology, movements and regulations, politics, pollution, and society. A resource guide, chronology, glossary, and list of the UN′s economic indicators complete the set." —Library Journal "...this important work gives a well-focused snapshot of environmentalism in the early 21st Century, and it will remain valuable into the future both for its content and as a yardstick to measure progress toward sustainability and conservation. Summing Up: Recommended. Undergraduates and general readers." —CHOICE Booklist Editors′ Choice 2008 "This superb interdisciplinary work should find a place on the shelves of every public and academic library that has the least bit of interest in environment issues—which should mean just about all." —Booklist (Starred Review) Where does the environment leave off and society begin? When expanding production and consumption drives greenhouse gas emissions that warm the planet, which in turn influence the conditions of economic expansion, it is unclear where the climate ends and the economy begins. This fact is not new to our era, however, our social and natural sciences have only recently come to grips with the incredible complexity of the world described by understanding the environment and society as being of a piece. As a result, in the last decade there has been an unprecedented explosion of new concepts, theories, facts, and techniques that follow from such an understanding. The Encyclopedia of Environment and Society brings together multiplying issues, concepts, theories, examples, problems, and policies, with the goal of clearly explicating an emerging way of thinking about people and nature. With more than 1,200 entries written by experts from incredibly diverse fields, this innovative resource is a first step toward diving into the deep pool of emerging knowledge. The five volumes of this Encyclopedia represent more than a catalogue of terms. Rather, they capture the spirit of the moment, a fascinating time when global warming and genetic engineering represent only two of the most obvious examples of socio-environmental issues. Key Features Examines many new ideas about how the world works, what creates the daunting problems of our time, and how such issues might be addressed, whether by regulation, markets, or new ethics Demonstrates how theories of environmental management based on market efficiency may not be easily reconciled with those that focus on population, and both may certainly diverge from those centering on ethics, justice, or labor Offers contributions from experts in their fields of specialty, including geographers, political scientists, chemists, anthropologists, medical practitioners, development experts, and sociologists, among many others Explores the emerging socio-environmental problems that we face in the next century, as well as the shifting and expanding theoretical tools available for tackling these problems Covers regions of North America in greater detail but also provides a comprehensive picture that approaches, as effectively as possible, a cohesive global vision Key Themes Agriculture Animals Biology and Chemistry Climate Conservation and Ecology Countries Geography History Movements and Regulations Organizations People Politics Pollution Society Packed with essential and up-to-date information on the state of the global socio-environment, the Encyclopedia of Environment and Society is a time capsule of its historic moment and a record of where we stand at the start of the 21st century, making it a must-have resource for any library. These inspiring volumes provide an opportunity for more new ways of thinking, behaving, and living in a more-than-human world.