uv radiation and arctic ecosystems ecological studies

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Uv Radiation And Arctic Ecosystems

Author : D.O. Hessen
ISBN : 9783642560750
Genre : Science
File Size : 25. 79 MB
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Although there are some biological processes that are supported by UV radiation, most organisms are stressed by it in various ways, e.g. through DNA damage. Top international experts present an integrated overview of UV radiation and its effects on terrestrial, freshwater and marine Arctic biota. Increased stratospheric ozone depletion and the corresponding increase in ground levels of UV radiation as well as ambient, "natural" UV radiation as a key ecological factor in the Arctic spring and summer are discussed in detail. Additionally, basic information on Arctic ecosystems is given. The volume provides not only an excellent account of present-day knowledge of the subject, but also describes the state of the art on which future research can be built.

Plants And Climate Change

Author : Jelte Rozema
ISBN : 9781402044434
Genre : Science
File Size : 46. 5 MB
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This book focuses on how climate affects or affected the biosphere and vice versa both in the present and in the past. The chapters describe how ecosystems from the Antarctic and Arctic, and from other latitudes, respond to global climate change. The papers highlight plant responses to atmospheric CO2 increase, to global warming and to increased ultraviolet-B radiation as a result of stratospheric ozone depletion.

Stressors In The Marine Environment

Author : Martin Solan
ISBN : 9780198718833
Genre :
File Size : 51. 43 MB
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A multitude of direct and indirect human influences have significantly altered the environmental conditions, composition, and diversity of marine communities. However, understanding and predicting the combined impacts of single and multiple stressors is particularly challenging because observed ecological feedbacks are underpinned by a number of physiological and behavioural responses that reflect stressor type, severity, and timing. Furthermore, integration between the traditional domains of physiology and ecology tends to be fragmented and focused towards the effects of a specific stressor or set of circumstances. This novel volume summarises the latest research in the physiological and ecological responses of marine species to a comprehensive range of marine stressors, including chemical and noise pollution, ocean acidification, hypoxia, UV radiation, thermal and salinity stress before providing a perspective on future outcomes for some of the most pressing environmental issues facing society today. Stressors in the Marine Environment synthesises the combined expertise of a range of international researchers, providing a truly interdisciplinary and accessible summary of the field. It is essential reading for graduate students as well as professional researchers in environmental physiology, ecology, marine biology, conservation biology, and marine resource management. It will also be of particular relevance and use to the regulatory agencies and authorities tasked with managing the marine environment, including social scientists and environmental economists.

Arctic Antarctic And Alpine Research

Author :
ISBN : UOM:39015068684052
Genre : Physical geography
File Size : 70. 44 MB
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Berichte Zur Polar Und Meeresforschung

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ISBN : UOM:39015060922401
Genre : Marine sciences
File Size : 38. 24 MB
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Berichte Zur Polarforschung

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ISBN : UOM:39015053987288
Genre : Natural history
File Size : 30. 8 MB
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Arctic Alpine Ecosystems And People In A Changing Environment

Author : Jon Børre Ørbaek
ISBN : 9783540485148
Genre : Science
File Size : 26. 62 MB
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The European Arctic and Alpine regions are experiencing large environmental changes. These changes may have socio-economic effects if the changes affect the bioproduction, which form the basis for the marine and terrestrial food chains. This uniquely multidisciplinary book presents the various aspects of contemporary environmental changes in Arctic and Alpine Regions.

High Arctic Ecosystem Dynamics In A Changing Climate

Author :
ISBN : 0080570046
Genre : Science
File Size : 25. 6 MB
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High-Arctic Ecosystem Dynamics in a Changing Climate is based on data collected during the past 10 years by Zackenberg Ecological Research Operations (ZERO) at Zackenberg Research Station in Northeast Greenland. This volume covers the function of Arctic ecosystems based on the most comprehensive long-term data set in the world from a well-defined Arctic ecosystem. Editors offer a comprehensive and authoritative analysis of how climate variability is influencing an Arctic ecosystem and how the Arctic ecosystems have inherent feedback mechanisms interacting with climate variability or change. The latest research on the functioning of Arctic ecosystems Supplements current books on arctic climate impact assessment as a case study for ecological specialists Discusses the complex perpetuating effects on Earth Vital information on modeling ecosystem responses to understand future climates

Polarforschung

Author :
ISBN : UCSD:31822033838855
Genre : Antarctica
File Size : 83. 48 MB
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Monitoring Ecological Condition At Regional Scales

Author : Shabeg S. Sandhu
ISBN : 9789401149761
Genre : Science
File Size : 53. 73 MB
Format : PDF
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The Environmental Monitoring and Assessment Program was created by EPA to develop the capability for tracking the changing conditions of our natural resources and to give environmental policy the advantages ofa sound scientific understanding of trends. Former EPA Administrators recognized early that contemporary monitoring programs could not even quantify simple unknowns like the number of lakes suffering from acid rain, let along determine if national control policies were benefiting these lakes. Today, adding to acidification impacts are truly complex problems such as determining the effects of climate change, of increases in ultraviolet light, toxic chemicals, eutrophication and critical habitat loss. Also today, the Government Performance and Results Act seeks to have agencies develop performance standards based on results rather than simply on levels of programmatic activities. The charge to EMAP of ecosystems is, therefore, the same today as it was a with respect to measuring the condition decade ago. We welcome the increasing urgency for sound scientific monitoring methods and data by efforts to protect and improve the environment. Systematic nationwide monitoring of natural resources is more than anyone program can accomplish, however. In an era of declining budgets, it is crucial that monitoring programs at all levels of government coordinate and share environmental data. EMAP resources are dwarfed by the more than $500 million spent on federal monitoring activities each year.

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