Download or read book Plant Soil Negative Feedbacks as Drivers of Spatial Patterns of Abundance in a Successional Landscape written by Lucy D. Christiana and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Negative plant-soil feedbacks describe a phenomenon-resulting from interactions between plants and their soil biota, particularly fungal pathogens. These highly dynamic local above- and below-ground interactions may be a way that biodiversity levels are maintained: even if one plant species is a strong competitor, its pathogens suppress its dominance, allowing for the coexistence of multiple plant species. I am interested in how negative feedbacks play a role in determining plant community assembly patterns in a landscape-scale fragmentation field site (Lawrence, Kansas) for which I have over 30 years of historical vegetation data. I built a spatially-explicit cellular automata model of the spatial dynamics of one species, Ambrosia artemisiifolia (common ragweed) over time, across both continuous and fragmented landscapes. Using empirical data from 1985 to set initial conditions, I simulated 32 years of vegetation change and compared the spatial distribution of ragweed in the model to the actual spatial organization of plants from the field site vegetation surveys in 2017. Exploring the spread of ragweed over space and time I asked: as plant communities undergo succession, what spatial patterns of abundance will I observe if negative plant-soil feedbacks are a key driver of plant community composition? Further, how does fragmentation affect these patterns? The model shows that there is a wide range of negative feedback strengths that allow for percent cover levels that resemble the historical data. On the other hand, occupancy, the proportion of samples in which a species is present, requires a much more sensitive range of feedback strengths in order to resemble historical data. In order to yield realistic historical species abundance patterns in the absence of feedbacks, there must be high levels of generalized seed mortality due to other processes. While this model a step towards a more integrated above- and below-ground analysis of spatiotemporal patterns of plant community assembly dynamics, more variables such as abiotic factors, and temporal changes in feedback strength and direction throughout succession must be accounted for, as well as response variables that more accurately represent these patterns.
Download or read book Landscape Ecology in Theory and Practice written by Monica G. Turner and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: An ideal text for students taking a course in landscape ecology. The book has been written by very well-known practitioners and pioneers in the new field of ecological analysis. Landscape ecology has emerged during the past two decades as a new and exciting level of ecological study. Environmental problems such as global climate change, land use change, habitat fragmentation and loss of biodiversity have required ecologists to expand their traditional spatial and temporal scales and the widespread availability of remote imagery, geographic information systems, and desk top computing has permitted the development of spatially explicit analyses. In this new text book this new field of landscape ecology is given the first fully integrated treatment suitable for the student. Throughout, the theoretical developments, modeling approaches and results, and empirical data are merged together, so as not to introduce barriers to the synthesis of the various approaches that constitute an effective ecological synthesis. The book also emphasizes selected topic areas in which landscape ecology has made the most contributions to our understanding of ecological processes, as well as identifying areas where its contributions have been limited. Each chapter features questions for discussion as well as recommended reading.
Download or read book Foundation Papers in Landscape Ecology written by John A. Wiens and published by Columbia University Press. This book was released on 2007 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: The editors begin with articles that illuminate the discipline's diverse scientific foundations, such as L.
Download or read book Spatial Point Patterns written by Adrian Baddeley and published by CRC Press. This book was released on 2015-11-11 with total page 830 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern Statistical Methodology and Software for Analyzing Spatial Point PatternsSpatial Point Patterns: Methodology and Applications with R shows scientific researchers and applied statisticians from a wide range of fields how to analyze their spatial point pattern data. Making the techniques accessible to non-mathematicians, the authors draw on th
Download or read book Landscape Heterogeneity and Disturbance written by Monica G. Turner and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: Landscape pattern is generated by a variety of processes, including disturbances. In turn, the heterogeneity of the landscape may enhance or retard the spread of disturbance. The complex relationship between landscape pattern and disturbance is the subject of this book. It is designed to present an illustrative analysis of the topic, presenting the perspectives of several different disciplines. The book includes conceptual considerations, empirical studies, and management examples. Important features include: hypotheses about the spread of disturbance and the effects of scale changes in landscape studies; the multidisciplinary approach; and the explicit focus on the landscape level. The intended audience comprises graduate students, academics, and professionals interested in landscape ecology. The reader will receive a state-of-the-art treatment of a current topic in landscape ecology.
Download or read book Development of Microbial Ecological Theory Stability Plasticity and Evolution of Microbial Ecosystems written by Shin Haruta and published by Frontiers Media SA. This book was released on 2017-06-01 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: “How can we develop microbial ecological theory?” The development of microbial ecological theory has a long way to reach its goal. Advances in microbial ecological techniques provide novel insights into microbial ecosystems. Articles in this book are challenging to determine the central and general tenets of the ecological theory that describes the features of microbial ecosystems. Their achievements expand the frontiers of current microbial ecology and propose the next step. Assemblage of these diverse articles hopefully helps to go on this long journey with many avenues for advancement of microbial ecology.
Download or read book Soil Fauna Assemblages written by Uffe N. Nielsen and published by Cambridge University Press. This book was released on 2019-03-28 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: A holistic overview of soil fauna, their contributions to ecosystem function, and implications of global change belowground.
Download or read book The Nature of Plant Communities written by J. Bastow Wilson and published by Cambridge University Press. This book was released on 2019-03-21 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a comprehensive review of the role of species interactions in the process of plant community assembly.
Download or read book Landscape Ecological Analysis written by Jeffrey M. Klopatek and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: Growth in the field of landscape ecology has included the development of methods and results that can be applied to an impressive range of environmental issues. This book addresses a broad spectrum of political, theoretical and applied aspects that often arise in the design and execution of landscape studies. The concepts of geographical scale and hierarchy arising within the confines of landscape ecology are examined, and a series of techniques are presented to address problems in spatial and temporal analysis. This book will provide the reader with a current perspective on this rapidly evolving science.
Download or read book Linking Restoration and Ecological Succession written by Lawrence R. Walker and published by Springer Science & Business Media. This book was released on 2007-10-16 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: This innovative book integrates practical information from restoration projects around the world with the latest developments in successional theory. It recognizes the critical roles of disturbance ecology, landscape ecology, ecological assembly, invasion biology, ecosystem health, and historical ecology in habitat restoration. It argues that restoration within a successional context will best utilize the lessons from each of these disciplines.
Download or read book Handbook of Spatial Point Pattern Analysis in Ecology written by Thorsten Wiegand and published by CRC Press. This book was released on 2013-12-20 with total page 525 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understand How to Analyze and Interpret Information in Ecological Point PatternsAlthough numerous statistical methods for analyzing spatial point patterns have been available for several decades, they haven't been extensively applied in an ecological context. Addressing this gap, Handbook of Spatial Point-Pattern Analysis in Ecology shows how the t
Download or read book The Role of Dispersal and Transmission in Structuring Microbial Communities written by Peter Deines and published by Frontiers Media SA. This book was released on 2022-11-22 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spatial Ecology Patterns and Processes written by Vikas Rai and published by Bentham Science Publishers. This book was released on 2013-04-25 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spacial Ecology elucidates processes and mechanisms which structure dynamics of real world systems; these include lakes, ponds, forests and rivers. Readers are introduced to contemporary models in ecological literature based on the author’s research experience. The e-book starts by presenting an introduction to basic mechanisms of ecological processes. This is followed by chapters explaining these processes responsible for generating observed spatial patterns in detail. The e-book concludes with a chapter on water quality management and its relevance to the spatial setting in a wetland area. This text in spatial ecology is a welcome resource for readers interested in models, methods and methodologies best suited for the study of advanced ecology courses and topics related to ecosystem structure, function and habitat fragmentation.
Download or read book Measuring Biological Diversity written by Anne E. Magurran and published by John Wiley & Sons. This book was released on 2013-04-18 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: This accessible and timely book provides a comprehensive overview of how to measure biodiversity. The book highlights new developments, including innovative approaches to measuring taxonomic distinctness and estimating species richness, and evaluates these alongside traditional methods such as species abundance distributions, and diversity and evenness statistics. Helps the reader quantify and interpret patterns of ecological diversity, focusing on the measurement and estimation of species richness and abundance. Explores the concept of ecological diversity, bringing new perspectives to a field beset by contradictory views and advice. Discussion spans issues such as the meaning of community in the context of ecological diversity, scales of diversity and distribution of diversity among taxa Highlights advances in measurement paying particular attention to new techniques such as species richness estimation, application of measures of diversity to conservation and environmental management and addressing sampling issues Includes worked examples of key methods in helping people to understand the techniques and use available computer packages more effectively
Download or read book Seeds 3rd Edition written by Robert S Gallagher and published by CABI. This book was released on 2013-12-06 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 3rd edition of Seeds: The Ecology of Regeneration in Plant Communities highlights the many advances in the field of seed ecology and its relationship to plant community dynamics that have taken place in recent years. The new edition also features chapters on seed development and morphology, seed chemical ecology, implications of climate change on regeneration by seed, and the functional role of seed banks in agricultural and natural ecosystems. The book is aimed at advanced level students and researchers in the fields of seed science, seed ecology and plant ecology.
Download or read book Towns Ecology and the Land written by Richard T. T. Forman and published by Cambridge University Press. This book was released on 2019-02-07 with total page 637 pages. Available in PDF, EPUB and Kindle. Book excerpt: A pioneering book highlighting the dynamic environmental dimensions of towns and villages and spatial connections with surrounding land.
Download or read book Developments in Environmental Modelling written by S.E. Jorgensen and published by Elsevier. This book was released on 2016-04-20 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of models to assess water quality is becoming increasingly important worldwide. In order to be able to develop a good model, it is necessary to have a good quantitative and ecological description of physical, chemical and biological processes in ecosystems. Such descriptions may be called ``submodels''. This book presents the most important, but not all, submodels applied in water quality modelling. Each chapter deals with a specific physical process and covers its importance, the most applicable submodels (and how to select one), parameter values and their determination, and future research needs.The book will be an excellent reference source for environmental engineers, ecological modellers and all those interested in the modelling of water quality systems.
