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Aquatic Ecosystems

Author: Nicholas V. C. Polunin
Publisher: Cambridge University Press
ISBN: 1316175731
Size: 71.81 MB
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Concern about future supplies of fresh water to society, to meet the full range of human needs, now comes very high on the priority list of global societal issues. An overarching issue, which this book addresses, is whether global climate change is a dominant driver of change in the structure and function of all natural water-based ecosystems, or whether direct human population growth and accelerated consumption are playing an equal or greater role. This book divides the whole aquatic realm into 21 ecosystems, from those on land (both saline and fresh water) to those of the open and deep oceans. It draws on the understanding of leading ecologists to summarize the state and likely condition by the year 2025 of each of the ecosystems. Written for academic researchers and environmental professionals, the aim is to put the climate change debate into a broader context as a basis for conservation science and planning.

Marine Ecosystems

Author: Tasman P. Crowe
Publisher: Cambridge University Press
ISBN: 1316368378
Size: 72.78 MB
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Ecosystem services are emerging as a key driver of conservation policy and environmental management. Delivery of ecosystem services depends on the efficient functioning of ecosystems, which in turn depends on biodiversity and environmental conditions. Many marine ecosystems are extremely productive and highly valued, but they are increasingly threatened by human activities. With contributions from leading researchers, this volume synthesises current understanding of the effects on biodiversity and ecosystem functioning caused by a variety of human activities and pressures at play in coastal marine ecosystems. The authors examine the likely consequences for ecosystem service provision, covering key topics including fisheries, aquaculture, physical structures, nutrients, chemical contaminants, marine debris and invasive species. Critically reviewing the latest developments, this is a unique resource both for environmental managers and policy-makers, and for researchers and students in marine ecology and environmental management.

Coastal Lagoons

Author: Michael J. Kennish
Publisher: CRC Press
ISBN: 1420088319
Size: 49.19 MB
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Dynamic and productive ecosystems, coastal lagoons play an important role in local economies and often bear the brunt of coastal development, agricultural, and urban waste, overuse from fisheries, aquaculture, transportation, energy production, and other human activities. The features that make coastal lagoons vital ecosystems underline the importance of sound management strategies for long-term environmental and resource sustainability. Written by an internationally renowned group of contributors, Coastal Lagoons: Critical Habitats of Environmental Change examines the function and structure of coastal lagoonal ecosystems and the natural and anthropogenic drivers of change that affect them. The contributors examine the susceptibility of coastal lagoons to eutrophication, the indicators of eutrophic conditions, the influences of natural factors such as major storms, droughts and other climate effects, and the resulting biotic and ecosystem impairments that have developed worldwide. They provide detailed descriptions of the physical-chemical and biotic characteristics of diverse coastal lagoonal ecosystems, and address the environmental factors, forcing features, and stressors affecting hydrologic, biogeochemical, and trophic properties of these important water bodies. They also discuss the innovative tools and approaches used for assessing ecological change in the context of anthropogenically- and climatically-mediated factors. The book investigates the biogeochemical and ecological responses to nutrient enrichment and other pollutants in lagoonal estuaries and compares them to those in other estuarine types. With editors among the most noted international scholars in coastal ecology and contributors who are world-class in their fields, the chapters in this volume represent a wide array of studies on natural and anthropogenic drivers of change in coastal lagoons located in different regions of the world. Although a significant number of journal articles on the subject can be found in the literature, this book provides a single-source reference for coastal lagoons within the arena of the global environment.

Aquatic Biodiversity Ii

Author: H. Segers
Publisher: Springer Science & Business Media
ISBN: 140204111X
Size: 36.46 MB
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Freshwater Biodiversity is a much underestimated component of global biodiversity, both in its diversity and in its potential to act as models for fundamental research in evolutionary biology and ecosystem studies. Freshwater organisms also reflect quality of water bodies and can thus be used to monitor changes in ecosystem health. The present book comprises a unique collection of primary research papers spanning a wide range of topics in aquatic biodiversity studies, and including a first global assessment of specific diversity of freshwater animals. The book also presents a section on the interaction between scientists and science policy managers. A target opinion paper lists priorities in aquatic biodiversity research for the next decade and several reactions from distinguished scientists discuss the relevance of these items from different points of view: fundamental ecology, taxonomy and systematics, needs of developing countries, present-day biodiversity policy at European and at global scales. It is believed that such a platform for the interaction between science and science policy is an absolute necessity for the efficient use of research budgets in the future.

Biodiversity And Conservation Causes And Consequences Of Biodiversity Loss 2 Pollution Climate Change And Unsustainable Exploitation

Author: Richard J. Ladle
Publisher:
ISBN: 9780415456579
Size: 38.62 MB
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Although 'biodiversity' is a relatively new coinage, scientists have been studying the subject it describes long before the word's first appearance in the language in the mid-1980s. In 1973, for instance, the UK Systematics Association held a symposium on 'The Changing Flora and Fauna of Britain' which concluded that not enough attention was being paid to the conservation of rarities, a conclusion also reached, said the symposium, at a meeting of the Linnaean Society some forty years earlier. By 1980, the Global 2000 Report to the President published by the US Council on Environmental Quality starkly warned of a diminution of up to one-fifth of all species by the turn of the century, and there is now a growing consensus that the world faces a 'biodiversity crisis' - a potentially catastrophic global loss of genetic, ecosystem, and, most obviously, species diversity.Indeed, especially since the UN Convention on Biological Diversity was promulgated in Rio de Janeiro in 1992, conserving biodiversity has become the principal focus of the global conservation movement. Indeed, the study of the origins, maintenance, and protection of diversity has become perhaps the most vibrant offshoot of ecology and conservation studies. It is increasingly taught and studied in universities - and other research institutions - around the world. Addressing the need for an authoritative reference work to make sense of this rapidly growing subject, and its ever more complex and multidisciplinary corpus of scholarly literature, Biodiversity and Conservation is a new title in the Routledge series, Critical Concepts in the Environment.Edited by Richard Ladle of Oxford University's Centre for the Environment, this new Major Work brings together in five volumes the foundational and the very best cutting-edge scholarship to provide a synoptic view of all the key issues and current debates

An Assessment Of Assessments Regional And Supra Regional Summaries And Technical Annexes

Author:
Publisher:
ISBN:
Size: 63.14 MB
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The "Assessment of Assessments" (AoA) is a start-up phase of a regular process for global reporting and assessment of the state of the marine environment including socio-economic aspects. AoA represents the most comprehensive initiative undertaken to date by the UN system to better coordinate ocean governance. Its central recommendation calls for a mechanism that builds on existing global, regional and national institutions and processes while integrating all available information, including socio-economic data, on how our seas and oceans are actually being used.--Publisher's description.

European Seagrasses

Author: Jens Borum
Publisher:
ISBN:
Size: 32.73 MB
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The goal of the report project is to define the habitat requirements of seagrasses in the European coasts, the present threats to the sustainability of the ecosystem they form, and their resilience to disturbance in order to strengthen our forecast capacity and formulate cost-effective monitoring plans and management strategies.

Ecohydrology Of Surface And Groundwater Dependent Systems

Author: Martin C. Thoms
Publisher: International Assn of Hydrological Sciences
ISBN:
Size: 79.79 MB
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Proceedings of symposium JS.1 at the Joint Convention of the International Association of Hydrological Sciences (IAHS) and the International Association of Hydrogeologists (IAH) held in Hyderabad, India, 6-12 September 2009. - Title page.