Interpretation And Implications Of Variability In Ecological Systems
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Interpretation And Implications Of Variability In Ecological Systems
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Author : Robert Klinger
language : en
Publisher: Frontiers Media SA
Release Date : 2024-07-22
Interpretation And Implications Of Variability In Ecological Systems written by Robert Klinger and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-07-22 with Science categories.
Numerous hypotheses have been proposed to explain the dynamics in abundance of individual species, how species interact, how communities assemble, and how interactions between biotic and abiotic processes shape ecosystem stability. Many if not most of these hypotheses find some degree of support, but often only within relatively narrow spatial and temporal ranges. This is because conditions vary over time and from place to place, and so the strength and extent of processes that were the focus of a given a hypothesis become altered by other forces. Ecologists have confronted variability from two perspectives; conceptual and statistical. Conceptually, spatial and temporal variability are now recognized as being scale dependent and hierarchical. Statistically, there are many models that ecologists readily use that account for the hierarchical and scale-dependence of variability present in many datasets. But linking the two perspectives into a meaningful understanding of what variability means in real systems has been much less successful. For example, it is common to see studies where the fixed effects of a generalized linear mixed model are reported, but very often random effects are completely ignored or, at best, given scant attention. The likelihood of this being a significant problem increases greatly in what are rapidly becoming more common studies that utilize datasets spanning long temporal and/or large spatial scales, or when extreme and often unpredictable events (gray and black swans) occur.
The Impact Of Environmental Variability On Ecological Systems
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Author : D.A. Vasseur
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-05-08
The Impact Of Environmental Variability On Ecological Systems written by D.A. Vasseur and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-05-08 with Science categories.
Fluctuations in the environmental conditions impacting life are ubiquitous. These fluctuations induce changes in the vital processes occurring within individual organisms (such as cellular metabolism) and the ecological processes occurring among individuals (such as competition, mutualism, and predation), ultimately leading to observable fluctuations in the commonly measured characteristics of ecological systems. From a very simple perspective, these processes are all modulators of environmental variability. We might best be able to understand the final form of this modulation – the impact of environmental variability on ecological systems - by building from an understanding of the responses of these life processes in isolation to an understanding of their responses in harmony. The impact of environmental variability on ecological systems is an issue that has been at the forefront of ecological research for many years. Research is taking place on many fronts, including theoretical mathematical based analyses, natural ecosystem observation and experimentation. This book brings together contributions from these three fronts to provide readers with a comprehensive look at the challenges for ecological systems and ecological research alike.
Timber Sale Planning And Analysis System
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Author : Mary L. Meacham
language : en
Publisher:
Release Date : 1997
Timber Sale Planning And Analysis System written by Mary L. Meacham and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Environmental monitoring categories.
General Technical Report Rmrs
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Author :
language : en
Publisher:
Release Date : 1998
General Technical Report Rmrs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Forests and forestry categories.
Variability In Human Performance
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Author : Thomas J. Smith
language : en
Publisher: CRC Press
Release Date : 2014-08-26
Variability In Human Performance written by Thomas J. Smith and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-08-26 with Technology & Engineering categories.
Understanding the conditions under which variability in performance may arise, and the processes related to its emergence, gives us insight into the development of techniques for improving the quality of performance. Variability in Human Performance details the scientific and the practical implications of human performance variability by providing a broad perspective on how and why such variability occurs across a number of disciplinary domains. The text takes an approach that rests upon the idea of context, or design, specificity in performance, namely that variability in performance is closely referenced to design factors in the environment in which performance is occurring. An exploration of the link between variability and related processes, the book introduces a comprehensive framework for understanding human performance variability, presented in terms of how human control of behavior is closely tied to design factors in the performance environment. The authors introduce empirical evidence, as well as practical examples and application areas, in support of this framework. The book begins with coverage of neurobiological and biomechanical basis of movement variability, then examines rich and extensive empirical evidence available for context specificity in cognitive performance and learning, as a basis for cognitive performance variability. The book then reviews the evidence for context specificity in: Student learning Displaced feedback conditions Human error behavior Affective performance Social and team performance The authors also explore work performance as influenced by complex sociotechnical systems and as a basis for performance variability, applying control systems concepts to an interpretation of the nature and basis of performance variability in all of these domains. They conclude by taking an evolutionary perspective on the origins and behavioral significance of human performance variability. The book then provides strategies on how individuals, groups, and organizations can significantly reduce variability in human performance that often leads to systems failures.
Historical Environmental Variation In Conservation And Natural Resource Management
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Author : John A. Wiens
language : en
Publisher: John Wiley & Sons
Release Date : 2012-09-04
Historical Environmental Variation In Conservation And Natural Resource Management written by John A. Wiens and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-09-04 with Science categories.
In North America, concepts of Historical Range of Variability are being employed in land-management planning for properties of private organizations and multiple government agencies. The National Park Service, U.S. Fish & Wildlife Service, Bureau of Land Management, U.S. Forest Service, and The Nature Conservancy all include elements of historical ecology in their planning processes. Similar approaches are part of land management and conservation in Europe and Australia. Each of these user groups must struggle with the added complication of rapid climate change, rapid land-use change, and technical issues in order to employ historical ecology effectively. Historical Environmental Variation in Conservation and Natural Resource Management explores the utility of historical ecology in a management and conservation context and the development of concepts related to understanding future ranges of variability. It provides guidance and insights to all those entrusted with managing and conserving natural resources: land-use planners, ecologists, fire scientists, natural resource policy makers, conservation biologists, refuge and preserve managers, and field practitioners. The book will be particularly timely as science-based management is once again emphasized in United States federal land management and as an understanding of the potential effects of climate change becomes more widespread among resource managers. Additional resources for this book can be found at: www.wiley.com/go/wiens/historicalenvironmentalvariation.
Departments Of Veterans Affairs And Housing And Urban Development And Independent Agencies Appropriations For Fiscal Year 2001
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Author : United States. Congress. Senate. Committee on Appropriations. Subcommittee on VA-HUD-Independent Agencies
language : en
Publisher:
Release Date : 2001
Departments Of Veterans Affairs And Housing And Urban Development And Independent Agencies Appropriations For Fiscal Year 2001 written by United States. Congress. Senate. Committee on Appropriations. Subcommittee on VA-HUD-Independent Agencies and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with History categories.
Introduction To Environmental Toxicology
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Author : Wayne Landis
language : en
Publisher: CRC Press
Release Date : 2017-09-29
Introduction To Environmental Toxicology written by Wayne Landis and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-09-29 with Science categories.
The fifth edition includes new sections on the use of adverse outcome pathways, how climate change changes how we think about toxicology, and a new chapter on contaminants of emerging concern. Additional information is provided on the derivation of exposure-response curves to describe toxicity and they are compared to the use of hypothesis testing. The text is unified around the theme of describing the entire cause-effect pathway from the importance of chemical structure in determining exposure and interaction with receptors to the use of complex systems and hierarchical patch dynamic theory to describe effects to landscapes.
Analysis Of Ecological Systems State Of The Art In Ecological Modelling
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Author : W.K. Lauenroth
language : en
Publisher: Elsevier
Release Date : 2013-10-22
Analysis Of Ecological Systems State Of The Art In Ecological Modelling written by W.K. Lauenroth and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Science categories.
The International Society for Ecological Modelling (ISEM) sponsors conferences, workshops and training courses with the aim of advancing the development of ecological and environmental modelling. The 3rd International Conference on the state-of-the-art in ecological modelling was sponsored by the ISEM in cooperation with the National Park Service Water Resources Laboratory and hosted by the Natural Resource Ecology Laboratory at Colorado State University. Its theme was the application of ecological modelling to environmental management and this book contains the full texts of the three invited papers presented in the five general sessions, plus the final summaries and syntheses of the topics covered during those sessions.
Environmental Systems Science
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Author : Daniel A. Vallero
language : en
Publisher: Elsevier
Release Date : 2021-05-27
Environmental Systems Science written by Daniel A. Vallero and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-05-27 with Science categories.
Environmental Systems Science: Theory and Practical Applications looks at pollution and environmental quality from a systems perspective. Credible human and ecological risk estimation and prediction methods are described, including life cycle assessment, feasibility studies, pollution control decision tools, and approaches to determine adverse outcome pathways, fate and transport, sampling and analysis, and cost-effectiveness. The book brings translational science to environmental quality, applying groundbreaking methodologies like informatics, data mining, and applications of secondary data systems. Multiple human and ecological variables are introduced and integrated to support calculations that aid environmental and public health decision making. The book bridges the perspectives of scientists, engineers, and other professionals working in numerous environmental and public health fields addressing problems like toxic substances, deforestation, climate change, and loss of biological diversity, recommending sustainable solutions to these and other seemingly intractable environmental problems. The causal agents discussed include physical, chemical, and biological agents, such as per- and polyfluoroalkyl substances (PFAS), SARS-CoV-2 (the COVID-19 virus), and other emerging contaminants. - Provides an optimistic and interdisciplinary approach, underpinned by scientific first principles and theory to evaluate pollutant sources and sinks, applying biochemodynamic methods, measurements and models - Deconstructs prior initiatives in environmental assessment and management using an interdisciplinary approach to evaluate what has worked and why - Lays out a holistic understanding of the real impact of human activities on the current state of pollution, linking the physical sciences and engineering with socioeconomic, cultural perspectives, and environmental justice - Takes a life cycle view of human and ecological systems, from the molecular to the planetary scale, integrating theories and tools from various disciplines to assess the current and projected states of environmental quality - Explains the elements of risk, reliability and resilience of built and natural systems, including discussions of toxicology, sustainability, and human-pollutant interactions based on spatial, biological, and human activity information, i.e. the exposome