The Chemistry Of Plants And Insects

Our objective in compiling a series of chapters on the chemical ecology of insects has been to delineate the major concepts of this discipline. The fine line between presenting a few topics in great detail or many topics in veneer has been carefully drawn, such that the book contains sufficient diversity to cover the field and a few topics in some depth. After the reader has penetrated the crust of what has been learned about chemical ecology of insects, the deficiencies in our understanding of this field should become evident. These deficiencies, to which no chapter topic is immune, indicate the youthful state of chemical ecology and the need for further investigations, especially those with potential for integrating elements that are presently isolated from each other. At the outset of this volume it becomes evident that, although we are beginning to decipher how receptor cells work, virtually nothing is known of how sensory information is coded to become relevant to the insect and to control the behavior of the insect. This problem is exacerbated by the state of our knowledge of how chemicals are distributed in nature, especially in complex habitats. And finally, we have been unable to understand the significance of orientation pathways of insects, in part because of the two previous problems: orientation seems to depend on patterns of distri bution of chemicals, the coding of these patterns by the central nervous system, and the generation of motor output based on the resulting motor commands.

Our objective in compiling a series of chapters on the chemical ecology of insects has been to delineate the major concepts of this discipline. The fine line between presenting a few topics in great detail or many topics in veneer has been carefully drawn, such that the book contains sufficient diversity to cover the field and a few topics in some depth. After the reader has penetrated the crust of what has been learned about chemical ecology of insects, the deficiencies in our understanding of this field should become evident. These deficiencies, to which no chapter topic is immune, indicate the youthful state of chemical ecology and the need for further investigations, especially those with potential for integrating elements that are presently isolated from each other. At the outset of this volume it becomes evident that, although we are beginning to decipher how receptor cells work, virtually nothing is known of how sensory information is coded to become relevant to the insect and to control the behavior of the insect. This problem is exacerbated by the state of our knowledge of how chemicals are distributed in nature, especially in complex habitats. And finally, we have been unable to understand the significance of orientation pathways of insects, in part because of the two previous problems: orientation seems to depend on patterns of distri bution of chemicals, the coding of these patterns by the central nervous system, and the generation of motor output based on the resulting motor commands.

This book explains the natural chemical compounds that determine the fascinating interactions between plants and insects providing a gentle and absorbing introduction to organic chemistry.

Insect Chemical Ecology provides a comprehensive view of how natural selection acts upon interacting organisms and how particular physical and biological properties of chemical compounds act as constraints upon which natural selection may act. Individual chapters raise specific questions as to the nature of these interactions. The first part contains reviews on antagonistic and mutualistic chemical interactions, the `raw materials' of chemical evolution, the economics of offensive and defensive chemicals, and neurobiology. The second part discusses particular problems such as the evolution of resistance, insect pollination, learning, pheromones, sequestration of semiochemicals, the role of microorganisms, sex attractants, the evolution of host races and biotypes, and the role of semiochemicals and the evolution of sociality of insects. The last chapter discusses the role of chemical-based pest management programs in an ecological and evolutionary framework.

Have you ever wondered how plants attract certain insects, or how insects communicate with each other? This book explains the natural chemical compounds that determine the fascinating interactions between plants and insects providing a gentle and absorbing introduction to organic chemistry that is highly relevant to everyday life and to the natural world. Specific organic compounds and intriguing chemistry determine whether insects are keen on feeding on plants or avoid certain plants altogether. Some insects have learned to use plant compounds as their own defences, and some plants use digestive processes to use insects as nutritional supplements. Plant-insect interactions are vital for our food supply, for pollination of orchards or detrimentally in insect infestations of crops, as well as in applications like silk production. By the author of the popular book, The Chemistry of Plants: Perfumes, Pigments, and Poisons, this book benefits from Margareta Séquin’s vast experience leading field trips and seminars to botanical gardens and nature reserves, and teaching chemistry to beginners. Organic chemistry is often seen as a challenging, sometimes abstract field. This book makes chemistry exciting and accessible for readers interested in a deeper understanding of the natural world. The book is organized according to the increasing complexity of compounds introduced, and so it also serves as a useful teaching aid for undergraduate chemistry or biology courses, and as a supplementary text for students in plant sciences, ecology, and entomology, and in horticultural programs.

Chemical signals mediate all aspects of insects' lives and their ecological interactions. The discipline of chemical ecology seeks to unravel these interactions by identifying and defining the chemicals involved, and documenting how perception of these chemical mediators modifies behaviour and ultimately reproductive success. Chapters in this 2004 volume consider how plants use chemicals to defend themselves from insect herbivores; the complexity of floral odors that mediate insect pollination; tritrophic interactions of plants, herbivores, and parasitoids and the chemical cues that parasitoids use to find their herbivore hosts; the semiochemically mediated behaviours of mites; pheromone communication in spiders and cockroaches; the ecological dependency of tiger moths on the chemistry of their host-plants; and the selective forces that shape the pheromone communication channel of moths. The volume presents descriptions of the chemicals involved, the effects of semiochemically mediated interactions on reproductive success, and the evolutionary pathways that have shaped the chemical ecology of arthropods.

This new edition of a popular book, eases access to organic chemistry by connecting it with the world of plants and their colours, fragrances and defensive mechanisms.

Insects and plants have been interacting for more than 350 million years, often resulting in species variability and radiation. Studying insect-plant chemical and mechanical interactions at different levels can help shed light on the complex factors driving the evolutionarily successful relationship between these two groups. This Special Issue focuses on the chemical and physical interactions between insects and plants to understand the functional significance of plant chemistry, plant surface structures, and their relationships with a broad range of ecological groups of insects, including pollinators, herbivores, and predators. The results of the investigations presented in this Special Issue can help develop effective management strategies to successfully control insect pest infestations or pollination strategies for diverse cropping environments.