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Pattern and Process in Host-Parasitoid Interactions

Pattern and Process in Host-Parasitoid Interactions PDF Author: Bradford A. Hawkins
Publisher: Cambridge University Press
ISBN: 9780521019446
Category : Science
Languages : en
Pages : 204

Book Description
Parasitoids are insects that parasitize and eventually kill other insects. Between one and two million species of parasitoid insect exist on the earth today. This book explores how this staggering diversity is maintained and documents 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.

Pattern and Process in Host-Parasitoid Interactions

Pattern and Process in Host-Parasitoid Interactions PDF Author: Bradford A. Hawkins
Publisher: Cambridge University Press
ISBN: 9780521019446
Category : Science
Languages : en
Pages : 204

Book Description
Parasitoids are insects that parasitize and eventually kill other insects. Between one and two million species of parasitoid insect exist on the earth today. This book explores how this staggering diversity is maintained and documents 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.

Patterns and process in host-parasitoid interactions

Patterns and process in host-parasitoid interactions PDF Author: B. Hawkins
Publisher:
ISBN:
Category :
Languages : es
Pages :

Book Description


The Spatial and Temporal Dynamics of Host-Parasitoid Interactions

The Spatial and Temporal Dynamics of Host-Parasitoid Interactions PDF Author: Michael Hassell
Publisher: OUP Oxford
ISBN: 0191588407
Category : Science
Languages : en
Pages : 214

Book Description
This book examines our current understanding of the population dynamics of one kind of interaction - that between insect parasitoids and their hosts. Parasitoids are amongst the most abundant of all animals, and make up about 10% or more of metazoan species. Almost no insect species escape their attack. Host-parasitoid interactions were first modelled over fifty years ago, but for many years there was little good empirical information on the important factors that affect host and parasitoid populations. The models were very simple, and their predictions rather divorced from the complexity of what was visible in the field. Now, better data is available on many components of host-parasitoid systems, from field observations and laboratory and field experiments, and this allows a much closer correspondence between models and data. In particular, the past twenty years have seen major advances in our understanding of how host-parasitoid interactions are influenced by spatial processes, by age-structure effects, and by competition from additional host and parasitoid species. The result is a body of theory that makes direct contact with real systems in the field, and provides us with a detailed understanding of what underpins a whole area of population dynamics. In this book, Michael P Hassell pulls the theory and field data together to present an elegant illustration of the way in which ecological studies advance.

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

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.

The Spatial and Temporal Dynamics of Host-parasitoid Interactions

The Spatial and Temporal Dynamics of Host-parasitoid Interactions PDF Author: Michael Patrick Hassell
Publisher: Oxford University Press on Demand
ISBN: 9780198540892
Category : Medical
Languages : en
Pages : 200

Book Description
This book examines our current understanding of the population dynamics of one kind of interaction--that between insect parasitoids and their hosts. Parasitoids are amongst the most abundant of all animals, and make up about 10% or more of metazoan species. Almost no insect species escape their attack. Host-parasitoid interactions were first modelled over fifty years ago, but for many years there was little good empirical information on the important factors that affect host and parasitoid populations. The models were very simple, and their predictions rather divorced from the complexity of what was visible in the field. Now, better data is available on many components of host-parasitoid systems, from field observations and laboratory and field experiments, and this allows a much closer correspondence between models and data. In particular, the past twenty years have seen major advances in our understanding of how host-parasitoid interactions are influenced by spatial processes, by age-structure effects, and by competition from additional host and parasitoid species. The result is a body of theory that makes direct contact with real systems in the field, and provides us with a detailed understanding of what underpins a whole area of population dynamics. In this book, Michael P. Hassell pulls the theory and field data together to present an elegant illustration of the way in which ecological studies advance.

Multitrophic Level Interactions

Multitrophic Level Interactions PDF Author: Teja Tscharntke
Publisher: Cambridge University Press
ISBN: 1139441485
Category : Science
Languages : en
Pages : 286

Book Description
The multitrophic level approach to ecology addresses the complexity of food webs much more realistically than the traditional focus on simple systems and interactions. Only in the last few decades have ecologists become interested in the nature of more complex systems including tritrophic interactions between plants, herbivores and natural enemies. Plants may directly influence the behaviour of their herbivores' natural enemies, ecological interactions between two species are often indirectly mediated by a third species, landscape structure directly affects local tritrophic interactions and below-ground food webs are vital to above-ground organisms. The relative importance of top-down effects (control by predators) and bottom-up effects (control by resources) must also be determined. These interactions are explored in this exciting volume by expert researchers from a variety of ecological fields. This book provides a much-needed synthesis of multitrophic level interactions and serves as a guide for future research for ecologists of all descriptions.

Parasitoid Population Biology

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

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.

Insect-Plant Interactions in a Crop Protection Perspective

Insect-Plant Interactions in a Crop Protection Perspective PDF Author:
Publisher: Academic Press
ISBN: 012803324X
Category : Science
Languages : en
Pages : 424

Book Description
Insect-Plant Interactions, the latest edition in the Advances in Botanical Research series, which publishes in-depth and up-to-date reviews on a wide range of topics in the plant sciences, features several reviews by recognized experts on all aspects of plant genetics, biochemistry, cell biology, molecular biology, physiology, and ecology. Publishes in-depth and up-to-date reviews on a wide range of topics in plant sciences Presents the latest information on artificial photosynthesis Features a wide range of reviews by recognized experts on all aspects of plant genetics, biochemistry, cell biology, molecular biology, physiology, and ecology

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

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.

General Technical Report NC.

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

Book Description