CHEMICAL ECOLOGY IN AQUATIC SYSTEMS

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Chemical Ecology In Aquatic Systems

Author : Christer Brönmark
ISBN : 9780191625374
Genre : Science
File Size : 40.29 MB
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In recent years it has become increasingly clear that chemical interactions play a fundamental role in aquatic habitats and have far-reaching evolutionary and ecological consequences. A plethora of studies have shown that aquatic organisms from most taxa and functional groups respond to minute concentrations of chemical substances released by other organisms. However, our knowledge of this "chemical network" is still negligible. Chemical interactions can be divided into two larger sub-areas based on the function of the chemical substance. First, there are interactions where chemical substances are toxic to other organisms and are used as a defence against consumers (including both herbivores and predators) or a weapon against competitors (allelopathy). Second, chemical substances may be used as a source for information of the environment; for example: how can I find the optimal habitat, the best food, the nicest partner, and avoid being eaten? Aquatic organisms are able to detect and respond to extremely low concentrations of chemical cues to answer all these questions. The book aims at connecting these intriguing chemical interactions with traditional knowledge of organism interactions. Chemical Ecology of Aquatic Systems covers a wide range of studies, both plant and animal, from different geographic regions and habitats - pelagic as well as benthic. Most of the chemical interactions are similar in freshwater and marine habitats and this book therefore strives at integrating work on both systems.
Category: Science

Chemical Ecology Of Plants Allelopathy In Aquatic And Terrestrial Ecosystems

Author : Inderjit
ISBN : 9783034881098
Genre : Science
File Size : 26.59 MB
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Allelochemicals play a great role in managed and natural ecosystems. Apart from plant growth, allelochemicals also may influence nutrient dynamics, mycorrhizae, soil chemical characteristics, and microbial ecology. Synergistic action of various factors may better explain plant growth and distribution in natural systems. The book emphasizes the role of allelochemicals in shaping the structure of plant communities in a broader ecological perspective. The book addresses the following questions: (1) How do allelochemicals influence different components of the ecosystem in terms of shaping community structure? (2) Why is it difficult to demonstrate interference by allelochemicals (i.e., allelopathy) in a natural system in its entirety? Despite a large amount of existing literature on allelopathy, why are ecologists still skeptical about the existence of allelopathy in nature? (3) Why are there only scarce data on aquatic ecosystems? (4) What role do allelochemicals play in microbial ecology?.....
Category: Science

Chemical Ecology

Author : Marcel Dicke
ISBN : 1402047924
Genre : Science
File Size : 28.29 MB
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Chemical ecology is the ecology of body odour. Every organism uses chemical information in intra- and inter-specific interactions. Animals emit chemicals to attract a mate or to prevent a competitor from mating with the partner they just mated with. Plants emit chemicals to recruit other organisms to take care of their sex life or to attract bodyguards to defend them against their enemies. Chemical cues mediate a whole gamut of interactions in plant and animal communities. Chemical cues are used to communicate, but can also be exploited in espionage or eavesdropping. To understand the ecology of chemical signalling in communities one needs to carry out manipulative experiments. Such experiments have been done throughout the last century. However, in recent years the degree of precision with which such experiments can be done has grown tremendously as a result of rapidly increasing knowledge at the molecular-genetic level. This opens exciting new avenues to chemical ecologists. The connection of molecular genetics to community ecology and ecosystem ecology provides novel tools to take up old questions that were often hard to answer. This book provides an overview of chemical ecology related to different ecosystems and an outlook at novel directions that can be taken in chemical ecology through a molecular-ecological or eco-genomic approach. The book addresses above- and belowground terrestrial systems as well as aquatic systems, and the organisms involved are micro- and macro-organisms, such as plants, arthropods and mammals. The scientific approach presented in this book is characteristic of modern biological research. The book will be useful for scientists and students interested in ecology in general as well as those working in the fields of molecular, chemical, behavioural, population or community ecology.
Category: Science

Chemical Ecology

Author : Jorg D. Hardege
ISBN : 9781848261792
Genre : Science
File Size : 73.22 MB
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Chemical Ecology is a component of Encyclopedia of Chemical Sciences, Engineering and Technology Resources in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. The Theme on Chemical Ecology provides the essential aspects of the chemicals involved in the interactions of living organisms. It deals with studies involving defensive chemicals which are utilized to deter potential predators, which may attack a wide variety of species, animal interaction, aquatic ecosystems, chemical ecology and pest management, relation to medicine and pharmaceuticals. This volume is aimed at the following five major target audiences: University and College students Educators, Professional practitioners, Research personnel and Policy analysts, managers, and decision makers.
Category: Science

Ecology Systematics And The Natural History Of Predaceous Diving Beetles Coleoptera Dytiscidae

Author : Donald A. Yee
ISBN : 9789401791090
Genre : Science
File Size : 50.42 MB
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Predaceous diving beetles (Coleoptera: Dytiscidae) constitute one of the largest families of freshwater insects (~ 4,200 species). Although dytiscid adults and larvae are ubiquitous throughout a variety of aquatic habitats and are significant predators on other aquatic invertebrates and vertebrates, there are no compilations that have focused on summarizing the knowledge of their ecology, systematics, and biology. Such knowledge would benefit anyone working in aquatic systems where dytiscids are an important part of the food web. Moreover, this work will allow a greater appreciation of dytiscids as model organisms for investigations of fundamental principles derived from ecological and evolutionary theory. Contributed chapters are by authors who are actively engaged in studying dytiscids and each chapter offers a synthesis of the current knowledge of a variety of topics and will provide future directions for research.
Category: Science

Algal Chemical Ecology

Author : Charles D. Amsler
ISBN : 9783540741817
Genre : Science
File Size : 31.41 MB
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Yet another Springer world-beater, this is the first ever book devoted to the chemical ecology of algae. It covers both marine and freshwater habitats and all types of algae, from seaweeds to phytoplankton. While the book emphasizes the ecological rather than chemical aspects of the field, it does include a unique introductory chapter that serves as a primer on algal natural products chemistry.
Category: Science

Ecology Of Aquatic Systems

Author : CTI Reviews
ISBN : 9781467259835
Genre : Education
File Size : 82.89 MB
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Facts101 is your complete guide to Ecology of Aquatic Systems. In this book, you will learn topics such as Rivers, Estuaries, Coastal seas, and The open ocean plus much more. With key features such as key terms, people and places, Facts101 gives you all the information you need to prepare for your next exam. Our practice tests are specific to the textbook and we have designed tools to make the most of your limited study time.
Category: Education

Chemical Kinetics And Process Dynamics In Aquatic Systems

Author : PatrickL. Brezonik
ISBN : 9781351461504
Genre : Science
File Size : 88.78 MB
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Chemical Kinetics and Process Dynamics in Aquatic Systems is devoted to chemical reactions and biogeochemical processes in aquatic systems. The book provides a thorough analysis of the principles, mathematics, and analytical tools used in chemical, microbial, and reactor kinetics. It also presents a comprehensive, up-to-date description of the kinetics of important chemical processes in aquatic environments. Aquatic photochemistry and correlation methods (e.g., LFERs and QSARs) to predict process rates are covered. Numerous examples are included, and each chapter has a detailed bibliography and problems sets. The book will be an excellent text/reference for professionals and students in such fields as aquatic chemistry, limnology, aqueous geochemistry, microbial ecology, marine science, environmental and water resources engineering, and geochemistry.
Category: Science

Freshwater Ecology

Author : Walter K. Dodds
ISBN : 0080477909
Genre : Science
File Size : 26.22 MB
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Freshwater Ecology: Concepts and Environmental Applications is a general text covering both basic and applied aspects of freshwater ecology and serves as an introduction to the study of lakes and streams. Issues of spatial and temporal scale, anthropogenic impacts, and application of current ecological concepts are covered along with ideas that are presented in more traditional limnological texts. Chapters on biodiversity, toxic chemicals, extreme and unusual habitats, and fisheries increase the breadth of material covered. The book includes an extensive glossary, questions for thought, worked examples of equations, and real-life problems. Broad coverage of groundwaters, streams, wetlands, and lakes Features basic scientific concepts and environmental applications throughout Includes many figures, sidebars of fascinating applications, and biographies of practicing aquatic ecologists Materials are presented to facilitate learning, including an extensive glossary, questions for thought, worked examples of equations, and real life problems Written at a level understandable to most undergraduate students, with explanations of complex contemporary concepts in freshwater ecology described to promote understanding Featuring small chapters that mainly stand alone, this book can be read in the order most suited to the specific application
Category: Science

Chemical Biomarkers In Aquatic Ecosystems

Author : Thomas S. Bianchi
ISBN : 1400839106
Genre : Science
File Size : 75.8 MB
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This textbook provides a unique and thorough look at the application of chemical biomarkers to aquatic ecosystems. Defining a chemical biomarker as a compound that can be linked to particular sources of organic matter identified in the sediment record, the book indicates that the application of these biomarkers for an understanding of aquatic ecosystems consists of a biogeochemical approach that has been quite successful but underused. This book offers a wide-ranging guide to the broad diversity of these chemical biomarkers, is the first to be structured around the compounds themselves, and examines them in a connected and comprehensive way. This timely book is appropriate for advanced undergraduate and graduate students seeking training in this area; researchers in biochemistry, organic geochemistry, and biogeochemistry; researchers working on aspects of organic cycling in aquatic ecosystems; and paleoceanographers, petroleum geologists, and ecologists. Provides a guide to the broad diversity of chemical biomarkers in aquatic environments The first textbook to be structured around the compounds themselves Describes the structure, biochemical synthesis, analysis, and reactivity of each class of biomarkers Offers a selection of relevant applications to aquatic systems, including lakes, rivers, estuaries, oceans, and paleoenvironments Demonstrates the utility of using organic molecules as tracers of processes occurring in aquatic ecosystems, both modern and ancient
Category: Science