Food Webs And Niche Space

Author : Joel E. Cohen,David W. Stephens
Publisher : Princeton University Press
Page : 210 pages
File Size : 46,7 Mb
Release : 2020-03-31
Category : Science
ISBN : 9780691209449

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Food Webs and Niche Space. (MPB-11), Volume 11 by Joel E. Cohen,David W. Stephens Pdf

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.

Author : Stuart L. Pimm
Publisher : University of Chicago Press
Page : 268 pages
File Size : 55,5 Mb
Release : 2002-05-30
Category : Nature
ISBN : 0226668320

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Food Webs by Stuart L. Pimm Pdf

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.

Author : Joel E. Cohen,Frédéric Briand,Charles M. Newman
Publisher : Springer Science & Business Media
Page : 318 pages
File Size : 41,7 Mb
Release : 2012-12-06
Category : Medical
ISBN : 9783642837845

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Community Food Webs by Joel E. Cohen,Frédéric Briand,Charles M. Newman Pdf

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.

Author : Axel G. Rossberg
Publisher : John Wiley & Sons
Page : 342 pages
File Size : 52,9 Mb
Release : 2013-06-03
Category : Science
ISBN : 9781118502174

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Food Webs and Biodiversity by Axel G. Rossberg Pdf

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

Author : Kevin S. McCann
Publisher : Princeton University Press
Page : 255 pages
File Size : 46,9 Mb
Release : 2012
Category : Science
ISBN : 9780691134185

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Food Webs (MPB-50) by Kevin S. McCann Pdf

This book synthesizes and reconciles modern and classical perspectives into a general unified theory.

Author : Peter C de Ruiter,Volkmar Wolters,John C Moore
Publisher : Elsevier
Page : 608 pages
File Size : 49,9 Mb
Release : 2005-12-20
Category : Science
ISBN : 0080460941

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Dynamic Food Webs by Peter C de Ruiter,Volkmar Wolters,John C Moore Pdf

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

Author : John C. Moore,Peter C. de Ruiter,Kevin S. McCann,Volkmar Wolters
Publisher : Cambridge University Press
Page : 445 pages
File Size : 53,6 Mb
Release : 2018
Category : Business & Economics
ISBN : 9781107182110

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Food Webs by John C. Moore,Peter C. de Ruiter,Kevin S. McCann,Volkmar Wolters Pdf

This book presents new approaches to studying food webs, using practical and policy examples to demonstrate the theory behind ecosystem management decisions.

Author : Gary A. Polis,Kirk O. Winemiller
Publisher : Springer Science & Business Media
Page : 475 pages
File Size : 50,8 Mb
Release : 2013-04-17
Category : Science
ISBN : 9781461570073

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Food Webs by Gary A. Polis,Kirk O. Winemiller Pdf

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.

Author : Dijen Ray-Chaudhuri
Publisher : American Mathematical Soc.
Page : 378 pages
File Size : 47,7 Mb
Release : 1979
Category : Mathematics
ISBN : 9780821814345

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Relations between Combinatorics and Other Parts of Mathematics by Dijen Ray-Chaudhuri Pdf

Brings into focus interconnections between combinatorics on the one hand and geometry, group theory, number theory, special functions, lattice packings, logic, topological embeddings, games, experimental dsigns, and sociological and biological applications on the other hand.

Author : Mercedes Pascual,Jennifer A. Dunne
Publisher : Oxford University Press
Page : 422 pages
File Size : 45,7 Mb
Release : 2006
Category : Mathematics
ISBN : 0195188160

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Ecological Networks by Mercedes Pascual,Jennifer A. Dunne Pdf

Food webs are one of the most useful, and challenging, objects of study in ecology. These networks of predator-prey interactions, conjured in Darwin's image of a "tangled bank," provide a paradigmatic example of complex adaptive systems. This book is based on a February 2004 Santa Fe Institute workshop. Its authors treat the ecology of predator-prey interactions, food web theory, structure and dynamics. The book explores the boundaries of what is known of the relationship between structure and dynamics in ecological networks and will define directions for future developments in this field.

Author : Andrea Belgrano,Ursula M. Scharler,Jennifer Dunne,Robert E. Ulanowicz
Publisher : Oxford University Press
Page : 262 pages
File Size : 54,5 Mb
Release : 2005-04-07
Category : Science
ISBN : 9780191524066

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Aquatic Food Webs by Andrea Belgrano,Ursula M. Scharler,Jennifer Dunne,Robert E. Ulanowicz Pdf

This volume provides a current synthesis of theoretical and empirical food web research. Whether they are binary systems or weighted networks, food webs are of particular interest to ecologists in providing a macroscopic view of ecosystems. They describe interactions between species and their environment, and subsequent advances in the understanding of their structure, function, and dynamics are of vital importance to ecosystem management and conservation. Aquatic Food Webs provides a synthesis of the current issues in food web theory and its applications, covering issues of structure, function, scaling, complexity, and stability in the contexts of conservation, fisheries, and climate. Although the focus of this volume is upon aquatic food webs (where many of the recent advances have been made), any ecologist with an interest in food web theory and its applications will find the issues addressed in this book of value and use. This advanced textbook is suitable for graduate level students as well as professional researchers in community, ecosystem, and theoretical ecology, in aquatic ecology, and in conservation biology.

Author : Anonim
Publisher : Elsevier
Page : 208 pages
File Size : 46,6 Mb
Release : 2005-05-16
Category : Science
ISBN : 0080490298

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Food Webs: From Connectivity to Energetics by Anonim Pdf

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

Author : R. L. Kitching
Publisher : Cambridge University Press
Page : 449 pages
File Size : 41,8 Mb
Release : 2000-08-03
Category : Science
ISBN : 9781139428392

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Food Webs and Container Habitats by R. L. Kitching Pdf

The animal communities in plant-held water bodies, such as tree holes and pitcher plants, have become 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 thirty years' research in many parts of the world, this work presents much previously unpublished information, in addition to summarising over a hundred years of natural history observations 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. It is a unique introduction for the field naturalist and a stimulating source treatment for graduate students and professionals working in the fields of tropical and other forest ecology, as well as entomology.

Author : Jason Newton,Gabriele Stowasser,Rona A. R. McGill
Publisher : Frontiers Media SA
Page : 212 pages
File Size : 40,9 Mb
Release : 2023-09-29
Category : Science
ISBN : 9782832533925

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Food webs and stable isotopes, volume II by Jason Newton,Gabriele Stowasser,Rona A. R. McGill Pdf

Author : Fran‡ois K‚pŠs
Publisher : World Scientific
Page : 531 pages
File Size : 50,9 Mb
Release : 2007
Category : Science
ISBN : 9789812706959

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Biological Networks by Fran‡ois K‚pŠs Pdf

This volume presents a timely and comprehensive overview of biological networks at all organization levels in the spirit of the complex system approach. It discusses the transversal issues and fundamental principles as well as the overall structure, dynamics, and modeling of a wide array of biological networks at the molecular, cellular, and population levels. Anchored in both empirical data and a strong theoretical background, the book therefore lends valuable credence to the complex systems approach.