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. This book brings together contributions to provide readers with a comprehensive look at the challenges for ecological systems and ecological research alike. It offers a comprehensive range of topics, from environmental variability itself to its ecosystem-level impact.
Experiments In Ecology
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Author : A. J. Underwood
language : en
Publisher: Cambridge University Press
Release Date : 1997
Experiments In Ecology written by A. J. Underwood and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Nature categories.
First published in 1996, this book is a logical and consistent approach to experimental design using statistical principles.
Ecological Heterogeneity
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Author : Jurek Kolasa
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Ecological Heterogeneity written by Jurek Kolasa 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 2012-12-06 with Science categories.
An attractive, promising, and frustrating feature of ecology is its complex ity, both conceptual and observational. Increasing acknowledgment of the importance of scale testifies to the shifting focus in large areas of ecology. In the rush to explore problems of scale, another general aspect of ecolog ical systems has been given less attention. This aspect, equally important, is heterogeneity. Its importance lies in the ubiquity of heterogeneity as a feature of ecological systems and in the number of questions it raises questions to which answers are not readily available. What is heterogeneity? Does it differ from complexity? What dimensions need be considered to evaluate heterogeneity ade quately? Can heterogeneity be measured at various scales? Is heterogeneity apart of organization of ecological systems? How does it change in time and space? What are the causes of heterogeneity and causes of its change? This volume attempts to answer these questions. It is devoted to iden tification of the meaning, range of applications, problems, and methodol ogy associated with the study of heterogeneity. The coverage is thus broad and rich, and the contributing authors have been encouraged to range widely in discussions and reflections. vi Preface The chapters are grouped into themes. The first group focuses on the conceptual foundations (Chapters 1-5). These papers exarnine the meaning of the term, historical developments, and relations to scale. The second theme is modeling population and interspecific interactions in hetero geneous environments (Chapters 6 and 7).
Climate Change And Light In Aquatic Ecosystems Variability Ecological Consequences
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Author : Patrick J. Neale
language : en
Publisher: Frontiers Media SA
Release Date : 2021-07-08
Climate Change And Light In Aquatic Ecosystems Variability Ecological Consequences written by Patrick J. Neale 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 2021-07-08 with Science categories.
Experiments In Ecology Their Logical Design And Interpretation Using Analysis Of Variance
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Author :
language : en
Publisher:
Release Date : 1997
Experiments In Ecology Their Logical Design And Interpretation Using Analysis Of Variance written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Ecology categories.
First published in 1996, this book is a logical and consistent approach to experimental design using statistical principles.
Handbook Of Trait Based Ecology
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Author : Francesco de Bello
language : en
Publisher: Cambridge University Press
Release Date : 2021-03-11
Handbook Of Trait Based Ecology written by Francesco de Bello and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-03-11 with Nature categories.
Trait-based ecology is rapidly expanding. This comprehensive and accessible guide covers the main concepts and tools in functional ecology.
Recent Advances In Lichenology
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Author : Dalip Kumar Upreti
language : en
Publisher: Springer
Release Date : 2014-12-18
Recent Advances In Lichenology written by Dalip Kumar Upreti and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-12-18 with Science categories.
This book discusses in detail molecular, mycobiont culture, biomonitoring and bioprospection of lichens, providing insights into advances in different fields of lichenology by applying modern techniques and approaches and examining how their application has enhanced or changed classical approaches. It offers a valuable resource, especially for beginners, students and researchers from different academic backgrounds interested in the study of lichens. In recent years, the introduction of modern analytical techniques and approaches has significantly improved our understanding of the environment, including lichens. Lichens are unique organisms which possess untapped potential as effective and reliable bioindicators, sources of therapeutic phytochemicals, and as excellent extremophiles. The unique and peculiar characteristics of lichens underline the need for a multidimensional approach to explore their potential in various fields of environment science, botany and chemistry. Modern techniques, especially molecular techniques, have greatly enriched the field of lichen taxonomy and its position in the plant kingdom, revealing little-known species and exploring their evolutionary history, while multivariate analysis and GIS approaches have established lichens as an ideal and reliable tool for monitoring air pollution. Advanced culture techniques have expanded the pharmacological applications of lichens, which was formerly restricted due to their small biomass. The advent of sophisticated analytical instrumentation has now facilitated the isolation and characterization of lichens’ bioactive constituents, even in lower concentrations, as well as the estimation of their stress responses at different levels of pollution. As lichen diversity is adversely affected by increasing air pollution, there is a pressing need to develop effective management practices to conserve, restore and document lichen diversity.
Diversification In Toxicology Man And Environment
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Author : Jürg P. Seiler
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Diversification In Toxicology Man And Environment written by Jürg P. Seiler 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 2012-12-06 with Medical categories.
This volume contains the main papers presented at the 1997 EUROTOX Congress, Århus, Denmark, 24-28 June 1997. Diversification in toxicology is seen as the application of basic science to such diverse areas as man and his environment. The pressing issues which have been dealt with not only include reproductive effects of environmental chemicals ("xenoestrogens"), but also receptor-mediated toxic responses, new frontiers in human and ecological toxicology, chemoprevention of cancer and molecular approaches in toxicological research. The practical and ethical facets of toxicology, e.g. ecotoxicological risk assessment, biomarkers of exposure, complex chemical mixtures as well as animal welfare and the ethics of animal experimentation, are also treated.
Ecotoxicology Ecological Dimensions
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Author : D.J. Baird
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-13
Ecotoxicology Ecological Dimensions written by D.J. Baird 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 2013-03-13 with Science categories.
Ecotoxicology is a relatively new scientific discipline. Indeed, it might be argued that it is only during the last 5-10 years that it has come to merit being regarded as a true science, rather than a collection of procedures for protecting the environment through management and monitoring of pollutant discharges into the environment. The term 'ecotoxicology' was first coined in the late sixties by Prof. Truhaut, a toxicologist who had the vision to recognize the importance of investigating the fate and effects of chemicals in ecosystems. At that time, ecotoxicology was considered a sub-discipline of medical toxicology. Subsequently, several attempts have been made to portray ecotoxicology in a more realistic light. Notably, both Moriarty (1988) and F. Ramade (1987) emphasized in their books the broad basis of ecotoxicology, encompassing chemical and radiation effects on all components of ecosystems. In doing so, they and others have shifted concern from direct chemical toxicity to humans, to the far more subtle effects that pollutant chemicals exert on natural biota. Such effects potentially threaten the existence of all life on earth. Although I have identified the sixties as the era when ecotoxicology was first conceived as a coherent subject area, it is important to acknowledge that studies that would now be regarded as ecotoxicological are much older.