Download or read book Building Community Food Webs written by Ken Meter and published by Island Press. This book was released on 2021-04-29 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our current food system has decimated rural communities and confined the choices of urban consumers. Even while America continues to ramp up farm production to astounding levels, net farm income is now lower than at the onset of the Great Depression, and one out of every eight Americans faces hunger. But a healthier and more equitable food system is possible. In Building Community Food Webs, Ken Meter shows how grassroots food and farming leaders across the U.S. are tackling these challenges by constructing civic networks. Overturning extractive economic structures, these inspired leaders are engaging low-income residents, farmers, and local organizations in their quest to build stronger communities. Community food webs strive to build health, wealth, capacity, and connection. Their essential element is building greater respect and mutual trust, so community members can more effectively empower themselves and address local challenges. Farmers and researchers may convene to improve farming practices collaboratively. Health clinics help clients grow food for themselves and attain better health. Food banks engage their customers to challenge the root causes of poverty. Municipalities invest large sums to protect farmland from development. Developers forge links among local businesses to strengthen economic trade. Leaders in communities marginalized by our current food system are charting a new path forward. Building Community Food Webs captures the essence of these efforts, underway in diverse places including Montana, Hawai‘i, Vermont, Arizona, Colorado, Indiana, and Minnesota. Addressing challenges as well as opportunities, Meter offers pragmatic insights for community food leaders and other grassroots activists alike.
Download or read book Community Food Webs written by Joel E. Cohen and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Food webs hold a central place in ecology. They describe which organisms feed on which others in natural habitats. This book describes recently discovered empirical regularities in real food webs: it proposes a novel theory unifying many of these regularities, as well as extensive empirical data. After a general introduction, reviewing the empirical and theoretical discoveries about food webs, the second portion of the book shows that community food webs obey several striking phenomenological regularities. Some of these unify, regardless of habitat. Others differentiate, showing that habitat significantly influences structure. The third portion of the book presents a theoretical analysis of some of the unifying empirical regularities. The fourth portion of the book presents 113 community food webs. Collected from scattered sources and carefully edited, they are the empirical basis for the results in the volume. The largest available set of data on community food webs provides a valuable foundation for future studies of community food webs. The book is intended for graduate students, teachers and researchers primarily in ecology. The theoretical portions of the book provide materials useful to teachers of applied combinatorics, in particular, random graphs. Researchers in random graphs will find here unsolved mathematical problems.
Download or read book Food Webs written by Stuart L. Pimm and published by University of Chicago Press. This book was released on 2002-05-30 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Food webs are diagrams depicting which species interact or in other words, who eats whom. An understanding of the structure and function of food webs is crucial for any study of how an ecosystem works, including attempts to predict which communities might be more vulnerable to disturbance and therefore in more immediate need of conservation. Although it was first published twenty years ago, Stuart Pimm's Food Webs remains the clearest introduction to the study of food webs. Reviewing various hypotheses in the light of theoretical and empirical evidence, Pimm shows that even the most complex food webs follow certain patterns and that those patterns are shaped by a limited number of biological processes, such as population dynamics and energy flow. Pimm provides a variety of mathematical tools for unravelling these patterns and processes, and demonstrates their application through concrete examples. For this edition, he has written a new foreword covering recent developments in the study of food webs and demonstrates their continuing importance to conservation biology.
Download or read book Food Webs written by Gary A. Polis and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reflecting the recent surge of activity in food web research fueled by new empirical data, this authoritative volume successfully spans and integrates the areas of theory, basic empirical research, applications, and resource problems. Written by recognized leaders from various branches of ecological research, this work provides an in-depth treatment of the most recent advances in the field and examines the complexity and variability of food webs through reviews, new research, and syntheses of the major issues in food web research. Food Webs features material on the role of nutrients, detritus and microbes in food webs, indirect effects in food webs, the interaction of productivity and consumption, linking cause and effect in food webs, temporal and spatial scales of food web dynamics, applications of food webs to pest management, fisheries, and ecosystem stress. Three comprehensive chapters synthesize important information on the role of indirect effects, productivity and consumer regulation, and temporal, spatial and life history influences on food webs. In addition, numerous tables, figures, and mathematical equations found nowhere else in related literature are presented in this outstanding work. Food Webs offers researchers and graduate students in various branches of ecology an extensive examination of the subject. Ecologists interested in food webs or community ecology will also find this book an invaluable tool for understanding the current state of knowledge of food web research.
Download or read book Food Webs MPB 50 written by Kevin S. McCann and published by Princeton University Press. This book was released on 2012 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book synthesizes and reconciles modern and classical perspectives into a general unified theory.
Download or read book Dynamic Food Webs written by Peter C de Ruiter and published by Elsevier. This book was released on 2005-12-20 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic Food Webs challenges us to rethink what factors may determine ecological and evolutionary pathways of food web development. It touches upon the intriguing idea that trophic interactions drive patterns and dynamics at different levels of biological organization: dynamics in species composition, dynamics in population life-history parameters and abundances, and dynamics in individual growth, size and behavior. These dynamics are shown to be strongly interrelated governing food web structure and stability and the role of populations and communities play in ecosystem functioning. Dynamic Food Webs not only offers over 100 illustrations, but also contains 8 riveting sections devoted to an understanding of how to manage the effects of environmental change, the protection of biological diversity and the sustainable use of natural resources. Dynamic Food Webs is a volume in the Theoretical Ecology series. - Relates dynamics on different levels of biological organization: individuals, populations, and communities - Deals with empirical and theoretical approaches - Discusses the role of community food webs in ecosystem functioning - Proposes methods to assess the effects of environmental change on the structure of biological communities and ecosystem functioning - Offers an analyses of the relationship between complexity and stability in food webs
Download or read book Food Webs at the Landscape Level written by Gary A. Polis and published by University of Chicago Press. This book was released on 2004-02-22 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: Paying special attention to the fertile boundaries between terrestrial, freshwater, and marine ecosystems, this work shows not only what this new methodology means for ecology, conservation, and agriculture but also serves as a fitting tribute to Gary Polis and his major contributions to the field
Download or read book Dynamics of Nutrient Cycling and Food Webs written by Donald L. DeAngelis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: In all fields of science today, data are collected and theories are developed and published faster than scientists can keep up with, let alone thoroughly digest. In ecology the fact that practitioners tend to be divided between such subdisciplines as aquatic and terrestrial ecology, as well as between popula tion, community, and ecosystem ecology, makes it even harder for them to keep up with all relevant research. Ecologists specializing in one sub discipline are not always aware of progress in another subdiscipline that relates to their own. Syntheses are frequently needed that pull together large bodies of information and organize them in ways that makes them more coherent, and thus more understandable. I have tried to perform this task of integration for the subject area that encompasses the interrelationships between the dynamics of ecological food webs and the cycling of nutrients. I believe this area cuts across many of the subdisciplines of ecology and is pivotal to our progress in understanding ecosystems and in dealing with human impacts on the environment. Many current ecological problems involve human disturbances of both food webs and the nutrients that cycle through them. Little progress can be made towards elucidating the complex feedback relations inherent in the study of nutrient cycles in ecological systems without the tools of mathematics and computer modelling. These tools are therefore liberally used throughout the book.
Download or read book Food Webs and Biodiversity written by Axel G. Rossberg and published by John Wiley & Sons. This book was released on 2013-06-03 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Food webs have now been addressed in empirical and theoretical research for more than 50 years. Yet, even elementary foundational issues are still hotly debated. One difficulty is that a multitude of processes need to be taken into account to understand the patterns found empirically in the structure of food webs and communities. Food Webs and Biodiversity develops a fresh, comprehensive perspective on food webs. Mechanistic explanations for several known macroecological patterns are derived from a few fundamental concepts, which are quantitatively linked to field-observables. An argument is developed that food webs will often be the key to understanding patterns of biodiversity at community level. Key Features: Predicts generic characteristics of ecological communities in invasion-extirpation equilibrium. Generalizes the theory of competition to food webs with arbitrary topologies. Presents a new, testable quantitative theory for the mechanisms determining species richness in food webs, and other new results. Written by an internationally respected expert in the field. With global warming and other pressures on ecosystems rising, understanding and protecting biodiversity is a cause of international concern. This highly topical book will be of interest to a wide ranging audience, including not only graduate students and practitioners in community and conservation ecology but also the complex-systems research community as well as mathematicians and physicists interested in the theory of networks. "This is a comprehensive work outlining a large array of very novel and potentially game-changing ideas in food web ecology." —Ken Haste Andersen, Technical University of Denmark "I believe that this will be a landmark book in community ecology ... it presents a well-established and consistent mathematical theory of food-webs. It is testable in many ways and the author finds remarkable agreements between predictions and reality." —Géza Meszéna, Eötvös University, Budapest
Download or read book Food Webs and Container Habitats written by R. L. Kitching and published by Cambridge University Press. This book was released on 2000-08-03 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The animal communities in plant-held water bodies, such as tree holes and pitcher plants, are models for food web studies. In this book, Professor Kitching introduces us to these fascinating miniature worlds and demonstrates how they can be used to tackle some of the major questions in community ecology. Based on his thirty years of research around the world, he presents much previously unpublished information, as well as summarizing over a hundred years of natural history observations made by others. The book covers many aspects of the theory of food web formation and maintenance presented with field-collected information on tree holes, bromeliads, pitcher plants, bamboo containers, and the axils of fleshy plants.
Download or read book Food Webs written by John C. Moore and published by Cambridge University Press. This book was released on 2018 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents new approaches to studying food webs, using practical and policy examples to demonstrate the theory behind ecosystem management decisions.
Download or read book Food Webs and Niche Space MPB 11 Volume 11 written by Joel E. Cohen and published by Princeton University Press. This book was released on 2020-03-31 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: What is the minimum dimension of a niche space necessary to represent the overlaps among observed niches? This book presents a new technique for obtaining a partial answer to this elementary question about niche space. The author bases his technique on a relation between the combinatorial structure of food webs and the mathematical theory of interval graphs. Professor Cohen collects more than thirty food webs from the ecological literature and analyzes their statistical and combinatorial properties in detail. As a result, he is able to generalize: within habitats of a certain limited physical and temporal heterogeneity, the overlaps among niches, along their trophic (feeding) dimensions, can be represented in a one-dimensional niche space far more often than would be expected by chance alone and perhaps always. This compatibility has not previously been noticed. It indicates that real food webs fall in a small subset of the mathematically possible food webs. Professor Cohen discusses other apparently new features of real food webs, including the constant ratio of the number of kinds of prey to the number of kinds of predators in food webs that describe a community. In conclusion he discusses possible extensions and limitations of his results and suggests directions for future research.
Download or read book What Is a Food Chain written by Bobbie Kalman and published by My World - Grl H. This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Learn about photosynthesis, the food chain, and how everything is interconnected.
Download or read book The Community Food Forest Handbook written by Catherine Bukowski and published by Chelsea Green Publishing. This book was released on 2018 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Collaboration and leadership strategies for long-term success Fueled by the popularity of permaculture and agroecology, community food forests are capturing the imaginations of people in neighborhoods, towns, and cities across the United States. Along with community gardens and farmers markets, community food forests are an avenue toward creating access to nutritious food and promoting environmental sustainability where we live. Interest in installing them in public spaces is on the rise. People are the most vital component of community food forests, but while we know more than ever about how to design food forests, the ways in which to best organize and lead groups of people involved with these projects has received relatively little attention. In The Community Food Forest Handbook, Catherine Bukowski and John Munsell dive into the civic aspects of community food forests, drawing on observations, group meetings, and interviews at over 20 projects across the country and their own experience creating and managing a food forest. They combine the stories and strategies gathered during their research with concepts of community development and project management to outline steps for creating lasting public food forests that positively impact communities. Rather than rehash food forest design, which classic books such as Forest Gardening and Edible Forest Gardens address in great detail, The Community Food Forest Handbook uses systems thinking and draws on social change theory to focus on how to work with diverse groups of people when conceiving of, designing, and implementing a community food forest. To find practical ground, the authors use management phases to highlight the ebb and flow of community capitals from a project's inception to its completion. They also explore examples of positive feedbacks that are often unexpected but offer avenues for enhancing the success of a community food forest. The Community Food Forest Handbook provides readers with helpful ideas for building and sustaining momentum, working with diverse public and private stakeholders, integrating assorted civic interests and visions within one project, creating safe and attractive sites, navigating community policies, positively affecting public perception, and managing site evolution and adaptation. Its concepts and examples showcase the complexities of community food forests, highlighting the human resilience of those who learn and experience what is possible when they collaborate on a shared vision for their community.
Download or read book Community Ecology written by Herman A. Verhoef and published by Oxford University Press. This book was released on 2010 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Community ecology is the study of the interactions between populations of co-existing species. Co-edited by two prominent community ecologists and featuring contributions from top researchers in the field, this book provides a survey of the state-of-the-art in both the theory and applications of the discipline. It pays special attention to topology, dynamics, and the importance of spatial and temporal scale while also looking at applications to emerging problems in human-dominated ecosystems (including the restoration and reconstruction of viable communities). Community Ecology: Processes, Models, and Applications adopts a mainly theoretical approach and focuses on the use of network-based theory, which remains little explored in standard community ecology textbooks. The book includes discussion of the effects of biotic invasions on natural communities; the linking of ecological network structure to empirically measured community properties and dynamics; the effects of evolution on community patterns and processes; and the integration of fundamental interactions into ecological networks. A final chapter indicates future research directions for the discipline.
Download or read book Food Webs From Connectivity to Energetics written by and published by Elsevier. This book was released on 2005-05-16 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most recent volume of this series, Advances in Ecological Research, demonstrates a captivating knowledge of recent advances in the analysis of food webs. A food web describes the network of predator-prey interactions within a community. The simplest description of a food web specifies only who eats whom (a connectance web), with no indication of how much or how often. Chapters in this book begin with a discussion of the most detailed connectance webs ever compiled, and advance to incorporate information on the body size and numerical abundance of the species. The results yield new ways of describing food webs and powerful new models for estimating patterns of energy flow in ecosystems. - Provides fresh ways of describing food webs and applies previous observations in a new context - Ranked as the #1 publication in the Institute for Scientific Information in the Ecology section of 2000 - Powerful new theory AND application to some of the best food web data in the world - Many mathematical models for food web structure and function - Integrates previously unconnected perspectives on the description of ecological communities
Download or read book What Eats What in an Ocean Food Chain written by Suzanne Buckingham Slade and published by Capstone. This book was released on 2019-05-01 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Great Barrier ReefÊ teems with life. From algae to a grey reef shark, the animals in this book are linked together in a food chain. Each one of them needs the others in order to live. Find out what eats what in the ocean!
