Author: Robert W. Furness
Publisher: CRC Press
ISBN: 1351090054
Category : Science
Languages : en
Pages : 410
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Book Description
The aim of this volume is to draw together state-of-the-art reviews of knowledge onlevels of heavy metals in marine environments (particularly in marine animals), the dynamicprocesses in these systems, toxic effects, and threats presented by heavy metals in foods ofmarine origin.All heavy metals, whether biologically essential or not, have the potential to be toxicto organisms at a threshold bioavailability. Such threshold concentrations vary betweenmetals, between species and with the physicochemical characteristics of the medium, somelike copper being particularly toxic even though essential in trace amounts. Responses ofanimals to metals in their medium or food depend to a large extent on the ability of speciesto regulate levels attained in their tissues. Higher animals have the capacity to regulate levelsof many metals, while marine invertebrates can regulate some within certain limits. Whereanimals cannot regulate physiological levels of metals, an alternative strategy is to detoxifyand store metals in relatively harmless forms. Knowledge of the manner in which animals deal with potentially toxic concentrations of heavy metals is of fundamental importance in the assessment of metal pollution by analysis of metal levels in biological samples. The interaction of heavy metals with biological materials is a key theme running through this volume. Toxic effects may be reflected at the individual, population, or ecosystem level, affecting species composition and production levels, or may be of direct dietary significance to man. The global cycling of metals through the marine environment is crucially affected by biological processes.
Author: Mark L. Tasker
Publisher:
ISBN:
Category : Environmental monitoring
Languages : en
Pages : 88
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Book Description
Author: R. W. Furness
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 52
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Book Description
Author: R.W. Furness
Publisher: Springer Science & Business Media
ISBN: 9401513228
Category : Science
Languages : en
Pages : 365
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Book Description
Birds as Monitors of Environmental Change looks at how bird populations are affected by pollutants, water quality, and other physical changes and how this scientific knowledge can help in predicting the effects of pollutants and other physical changes in the environment.
Author: R. W. Furness
Publisher: Springer Science & Business Media
ISBN: 1461320933
Category : Science
Languages : en
Pages : 210
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Book Description
In the last few years there has been an excltmg upsurge in seabird research. There are several reasons for this. Man's increased ex ploitation of natural resources has led to a greater awareness of the potential conflicts with seabirds, and of the use of seabirds to indicate the damage we might be doing to our environment. Many seabird populations have increased dramatically in numbers and so seem more likely to conflict with man, for example through competition for food or transmission of diseases. Oil exploration and production has resulted in major studies of seabird distributions and ecology in relation to oil pollution. The possibility that seabirds may provide information on fish stock biology is now being critically investigated. Some seabird species have suffered serious declines in numbers and require conservation action to be taken to reduce the chances that they will become extinct. This requires an understanding of the factors determining their population size and dynamics.
Author: Michael Brooke
Publisher: Princeton University Press
ISBN: 0691210322
Category : Nature
Languages : en
Pages : 264
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Book Description
Seabirds evoke the spirit of the earth's wildest places. They spend large portions of their lives at sea, often far from land, and nest on remote islands that humans rarely visit. Thanks to increasingly sophisticated and miniaturized devices that can track their every movement and behavior, it is now possible to observe the mysterious lives of these remarkable creatures as never before. This book takes you on a breathtaking journey around the globe to provide an extraordinary up-close look at the activities of seabirds. Featuring stunning illustrations by renowned artist Bruce Pearson, Far from Land reveals that seabirds are not the aimless wind-tossed wanderers they may appear to be, and explains the observational innovations that are driving this exciting area of research.
Author: P. M. Walsh
Publisher:
ISBN: 9781873701737
Category : Birds
Languages : en
Pages : 150
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Book Description
Designed for fieldworkers, this handbook introduces the science of monitoring seabird colonies, a discussion of general methods, and instructions for monitoring gulls, terns, auks, cormorant, shag, fulmar, Manx shearwater, gannet and skuas, including illustrations of different stages of chick development.
Author: James B. Reid
Publisher:
ISBN:
Category : Sea birds
Languages : en
Pages : 778
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Book Description
Author: E. A. Schreiber
Publisher: CRC Press
ISBN: 1420036300
Category : Nature
Languages : en
Pages : 706
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Book Description
Biology of Marine Birds provides the only complete summary of information about marine birds ever published. It analyzes their breeding biology, ecology, taxonomy, evolution, fossil history, physiology, energetics, and conservation. The book covers four orders of marine birds in detail and includes two summary chapters that address the biology of shorebirds and wading birds and their lives in the marine environment. Summary tables give detailed information on various aspects of their life histories, breeding biology, physiology and energetics, and demography. It provides a guide to ornithologists and students for research projects.
Author: Heimo Mikkola
Publisher: BoD – Books on Demand
ISBN: 1789236568
Category : Science
Languages : en
Pages : 112
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Book Description
Changes in seabird populations are good indicators of large-scale and long-term change in marine ecosystems, and are important because of their global impacts on the marine environment. This book has six chapters that present a wide variety of global seabird-related issues, from India to Svalbard, Norway. It also gives a comprehensive history of the use and chemical content of guano and certification schemes in fisheries for seabird conservation in Argentina. With the knowledge available in this book we should know how best to protect seabirds, which need all our support to survive in changing environments and climates. We can all do our best to recycle plastic waste to reduce global plastic pollution, which has affected seabirds' physical state, food sources, and nesting areas.
