The Journal of Experimental Biology

The Journal of Experimental Biology PDF Author:
Publisher:
ISBN:
Category : Biology
Languages : en
Pages : 422

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The Journal of Experimental Biology

The Journal of Experimental Biology PDF Author:
Publisher:
ISBN:
Category : Biology
Languages : en
Pages : 422

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Book Description


Chitin and Benzoylphenyl Ureas

Chitin and Benzoylphenyl Ureas PDF Author: James E. Wright
Publisher: Springer Science & Business Media
ISBN: 9400948247
Category : Science
Languages : en
Pages : 315

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Book Description
The opportunity to explore a developing new technology in a single biological system, chitin, from the molecular basis and with the inter relationship of the utilization of benzoylphenyl ureas in effective pest agroecosystem management strategies, represents a new evolution for integration of knowledge in this highly complex area. The degree of great progress and interest in the understanding of the interaction of chitin uItrastructures, biochemistry, and the unique ben zoylphenyl ureas attest to the timeliness of this effort. The purpose of the book that follows is to provide up-to-date and well illustrated details of current research knowledge including the latest of research results. The combination of the basic to the applied aspects rarely occurs specifically at the levels presented by the international contributors within. The original contributions composed the symposium "Chitin and Ben zoylphenyl Urea" organized by the co-editors at the International Con gress of Entomology in Hamberg, Germany, August 1984. We extend our appreciation to everyone who made the conference an outstanding success and highlight of the Congress, as well as making this book possible. We thank the authors, especially for their excellent international presenta tions, discussions, and preparation of the manuscripts. The knowledge evolved from many areas in chitin research, as well as the intricate com plexity of successful utilization of specific knowledge involving benzoylp henyl ureas in system management strategies for insects will continue to be in the forefront throughout the world's agroecosystems; and hopefully this book will enhance further research and development.

Proceedings of the First Workshop on Mare Reproductive Loss Syndrome

Proceedings of the First Workshop on Mare Reproductive Loss Syndrome PDF Author: David G. Powell
Publisher:
ISBN:
Category : Horses
Languages : en
Pages : 138

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Plant Disturbance Ecology

Plant Disturbance Ecology PDF Author: Edward A. Johnson
Publisher: Academic Press
ISBN: 0128188146
Category : Nature
Languages : en
Pages : 564

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Book Description
Disturbance ecology continues to be an active area of research, having undergone advances in many areas in recent years. One emerging direction is the increased coupling of physical and ecological processes, in which disturbances are increasingly traced back to mechanisms that cause the disturbances themselves, such as earth surface processes, mesoscale, and larger meteorological processes, and the ecological effects of interest are increasingly physiological. Plant Disturbance Ecology, 2nd Edition encourages movement away from the informal, conceptual approach traditionally used in defining natural disturbances and clearly presents how scientists can use a multitude of approaches in plant disturbance ecology. This edition includes nine revised chapters from the first edition, as well new, more comprehensive chapters on fire disturbance and beaver disturbance. Edited by leading experts in the field, Plant Disturbance Ecology, 2nd Edition is an essential resource for scientists interested in understanding plant disturbance and ecological processes. - Advances understanding of natural disturbances by combining geophysical and ecological processes - Provides a framework for collaboration between geophysical scientists and ecologists studying natural disturbances - Includes fully updated research with 5 new chapters and revision of 11 chapters from the first edition

Forecasting the Response to Climate Change of the Major Natural Biotic Disturbance Regime in Ontario's Forests

Forecasting the Response to Climate Change of the Major Natural Biotic Disturbance Regime in Ontario's Forests PDF Author: Jean-Noël Candau
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 24

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Book Description
Predicting the effect of climate change on insect populations can be used to estimate the costs and benefits of protecting forests from potential damage. In this report, the authors present an analysis of potential changes in the distribution of spruce budworm (Choristoneura fumiferana Clem.) defoliation under climate change in Ontario. They use an empirical model that relates defoliation to historical bioclimatic variables, and then apply climate change data to this model to predict potential changes in the distribution of defoliation.--Includes text from document.

The Ecology of Natural Disturbance and Patch Dynamics

The Ecology of Natural Disturbance and Patch Dynamics PDF Author: Steward T.A. Pickett
Publisher: Elsevier
ISBN: 0080504957
Category : Science
Languages : en
Pages : 489

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Book Description
Ecologists are aware of the importance of natural dynamics in ecosystems. Historically, the focus has been on the development in succession of equilibrium communities, which has generated an understanding of the composition and functioning of ecosystems. Recently, many have focused on the processes of disturbances and the evolutionary significance of such events. This shifted emphasis has inspired studies in diverse systems. The phrase "patch dynamics" (Thompson, 1978) describes their common focus. The Ecology of Natural Disturbance and Patch Dynamics brings together the findings and ideas of those studying varied systems, presenting a synthesis of diverse individual contributions.

Systematics of the Dobsonfly Genus Corydalus (Megaloptera: Corydalidae)

Systematics of the Dobsonfly Genus Corydalus (Megaloptera: Corydalidae) PDF Author: Atilano Contreras-Ramos
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 372

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The Siphonini (Diptera

The Siphonini (Diptera PDF Author: Stig Andersen
Publisher: BRILL
ISBN: 9789004107311
Category : Science
Languages : en
Pages : 158

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Book Description
The present volume presents a detailed account of the taxonomy, biology and distribution of the European species of Siphonini. This group of tachinid Diptera totals 58 species in Europe of which 6 are here described as new to science. In most species, the immatures live as endoparasitolds of lepidopterous larvae, but a few species even attack tipulid larvae. Several species of Siphonini are of great economic interest as agents for the control of lepidopterous and tipulid pests in agriculture and forestry. An analysis and proposal on the systematic position of the Siphonini is given together with a key to larger taxonomic entities of Tachinidae. The generic classification is also critically emphasized. A separate chapter summarizes aspects of the group's natural history: life-cycles, mating behaviour, oviposition strategies, etc. The taxonomic part contains identification keys to genera and species, and for each species a diagnosis, a description and accounts on the nomenclature, biology and distribution is given. A separate catalogue details the provincial distribution of the 47 species occurring in Fennoscandia and Danmark. No less than 275 line drawings and 15 colour illustrations accompany the text.

Variable plants and herbivores in natural and managed systems

Variable plants and herbivores in natural and managed systems PDF Author: Robert Denno
Publisher: Elsevier
ISBN: 0323142877
Category : Science
Languages : en
Pages : 735

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Book Description
Variable Plants and Herbivores in Natural and Managed Systems examines individual, population, species, and community responses of herbivores to plant variation, with emphasis on insects, fungi, bacteria, and viruses. It is divided into five parts encompassing 18 chapters that discuss variability as a mechanism of defense used by plants against their parasites and the effects of variability on herbivores at several different levels of complexity. After a brief discussion on plant-herbivore interactions, the first part of this book considers sources of within-plant variation and effects on the distribution and abundance of herbivores. Part II examines interplant variation, the co-evolutionary problems it poses for herbivores, and the ecological and evolutionary responses of these animals. It discusses the effects of host-plant variability on the fitness of sedentary herbivorous insects. Part III discusses the role of host variability in the evolution of feeding specialization, genetic differentiation, and race formation. The importance of host variation to the organization of herbivore communities and the manipulation of host-plant variability for the management of herbivore pest populations are presented in the remaining parts. This book will be helpful to agriculturists, silviculturists, biologists, and researchers who wish to expand their knowledge in dynamics of plant-herbivore relationships.

The Eastern Tent Caterpillar

The Eastern Tent Caterpillar PDF Author: Bennet Allen Porter
Publisher:
ISBN:
Category : Agricultural pests
Languages : en
Pages : 6

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