| competitive exclusion definition biology: Encyclopedia of Ecology Brian D. Fath, 2014-11-03 The groundbreaking Encyclopedia of Ecology provides an authoritative and comprehensive coverage of the complete field of ecology, from general to applied. It includes over 500 detailed entries, structured to provide the user with complete coverage of the core knowledge, accessed as intuitively as possible, and heavily cross-referenced. Written by an international team of leading experts, this revolutionary encyclopedia will serve as a one-stop-shop to concise, stand-alone articles to be used as a point of entry for undergraduate students, or as a tool for active researchers looking for the latest information in the field. Entries cover a range of topics, including: Behavioral Ecology Ecological Processes Ecological Modeling Ecological Engineering Ecological Indicators Ecological Informatics Ecosystems Ecotoxicology Evolutionary Ecology General Ecology Global Ecology Human Ecology System Ecology The first reference work to cover all aspects of ecology, from basic to applied Over 500 concise, stand-alone articles are written by prominent leaders in the field Article text is supported by full-color photos, drawings, tables, and other visual material Fully indexed and cross referenced with detailed references for further study Writing level is suited to both the expert and non-expert Available electronically on ScienceDirect shortly upon publication |
| competitive exclusion definition biology: Concepts of Biology Samantha Fowler, Rebecca Roush, James Wise, 2023-05-12 Black & white print. Concepts of Biology is designed for the typical introductory biology course for nonmajors, covering standard scope and sequence requirements. The text includes interesting applications and conveys the major themes of biology, with content that is meaningful and easy to understand. The book is designed to demonstrate biology concepts and to promote scientific literacy. |
| competitive exclusion definition biology: Encyclopedia of Biodiversity , 2013-02-05 The 7-volume Encyclopedia of Biodiversity, Second Edition maintains the reputation of the highly regarded original, presenting the most current information available in this globally crucial area of research and study. It brings together the dimensions of biodiversity and examines both the services it provides and the measures to protect it. Major themes of the work include the evolution of biodiversity, systems for classifying and defining biodiversity, ecological patterns and theories of biodiversity, and an assessment of contemporary patterns and trends in biodiversity. The science of biodiversity has become the science of our future. It is an interdisciplinary field spanning areas of both physical and life sciences. Our awareness of the loss of biodiversity has brought a long overdue appreciation of the magnitude of this loss and a determination to develop the tools to protect our future. Second edition includes over 100 new articles and 226 updated articles covering this multidisciplinary field— from evolution to habits to economics, in 7 volumes The editors of this edition are all well respected, instantly recognizable academics operating at the top of their respective fields in biodiversity research; readers can be assured that they are reading material that has been meticulously checked and reviewed by experts Approximately 1,800 figures and 350 tables complement the text, and more than 3,000 glossary entries explain key terms |
| competitive exclusion definition biology: Biological Invasions in Marine Ecosystems Gil Rilov, Jeffrey A. Crooks, 2008-11-12 Biological invasions are considered to be one of the greatest threats to the integrity of most ecosystems on earth. This volume explores the current state of marine bioinvasions, which have been growing at an exponential rate over recent decades. Focusing on the ecological aspects of biological invasions, it elucidates the different stages of an invasion process, starting with uptake and transport, through inoculation, establishment and finally integration into new ecosystems. Basic ecological concepts - all in the context of bioinvasions - are covered, such as propagule pressure, species interactions, phenotypic plasticity, and the importance of biodiversity. The authors approach bioinvasions as hazards to the integrity of natural communities, but also as a tool for better understanding fundamental ecological processes. Important aspects of managing marine bioinvasions are also discussed, as are many informative case studies from around the world. |
| competitive exclusion definition biology: Reproductive Allocation in Plants Edward Reekie, Fakhri A. Bazzaz, 2011-05-04 Much effort has been devoted to developing theories to explain the wide variation we observe in reproductive allocation among environments. Reproductive Allocation in Plants describes why plants differ in the proportion of their resources that they allocate to reproduction and looks into the various theories. This book examines the ecological and evolutionary explanations for variation in plant reproductive allocation from the perspective of the underlying physiological mechanisms controlling reproduction and growth. An international team of leading experts have prepared chapters summarizing the current state of the field and offering their views on the factors determining reproductive allocation in plants. This will be a valuable resource for senior undergraduate students, graduate students and researchers in ecology, plant ecophysiology, and population biology. - 8 outstanding chapters dedicated to the evolution and ecology of variation in plant reproductive allocation - Written by an international team of leading experts in the field - Provides enough background information to make it accessible to senior undergraduate students - Includes over 60 figures and 29 tables |
| competitive exclusion definition biology: Dynamical Systems and Population Persistence Hal L. Smith, Horst R. Thieme, 2011 Providing a self-contained treatment of persistence theory that is accessible to graduate students, this monograph includes chapters on infinite-dimensional examples including an SI epidemic model with variable infectivity, microbial growth in a tubular bioreactor, and an age-structured model of cells growing in a chemostat. |
| competitive exclusion definition biology: The Chemostat Jérôme Harmand, Claude Lobry, Alain Rapaport, Tewfik Sari, 2017-08-07 Invented by J. Monod, and independently by A. Novick and L. Szilard, in 1950, the chemostat is both a micro-organism culturing device and an abstracted ecosystem managed by a controlled nutrient flow. This book studies mathematical models of single species growth as well as competition models of multiple species by integrating recent work in theoretical ecology and population dynamics. Through a modeling approach, the hypotheses and conclusions drawn from the main mathematical results are analyzed and interpreted from a critical perspective. A large emphasis is placed on numerical simulations of which prudent use is advocated. The Chemostat is aimed at readers possessing degree-level mathematical knowledge and includes a detailed appendix of differential equations relating to specific notions and results used throughout this book. |
| competitive exclusion definition biology: Conceptual Breakthroughs in Evolutionary Ecology Laurence Mueller, 2019-11-19 Although biologists recognize evolutionary ecology by name, many only have a limited understanding of its conceptual roots and historical development. Conceptual Breakthroughs in Evolutionary Ecology fills that knowledge gap in a thought-provoking and readable format. Written by a world-renowned evolutionary ecologist, this book embodies a unique blend of expertise in combining theory and experiment, population genetics and ecology. Following an easily-accessible structure, this book encapsulates and chronologizes the history behind evolutionary ecology. It also focuses on the integration of age-structure and density-dependent selection into an understanding of life-history evolution. - Covers over 60 seminal breakthroughs and paradigm shifts in the field of evolutionary biology and ecology - Modular format permits ready access to each described subject - Historical overview of a field whose concepts are central to all of biology and relevant to a broad audience of biologists, science historians, and philosophers of science |
| competitive exclusion definition biology: Sexual Segregation in Vertebrates Kathreen Ruckstuhl, Peter Neuhaus, 2005 Males and females of many species can, and do, live separately for long periods of time. This sexual segregation is widespread and can be on social, spatial or habitat scales. An understanding of sexual segregation is important in the explanation of life history and social preference, population dynamics and the conservation of rare species. Sexual Segregation in Vertebrates explores the reasons why this behaviour has evolved and what factors contribute to it. |
| competitive exclusion definition biology: Spatial Ecology David Tilman, Peter Kareiva, 2018-06-05 Spatial Ecology addresses the fundamental effects of space on the dynamics of individual species and on the structure, dynamics, diversity, and stability of multispecies communities. Although the ecological world is unavoidably spatial, there have been few attempts to determine how explicit considerations of space may alter the predictions of ecological models, or what insights it may give into the causes of broad-scale ecological patterns. As this book demonstrates, the spatial structure of a habitat can fundamentally alter both the qualitative and quantitative dynamics and outcomes of ecological processes. Spatial Ecology highlights the importance of space to five topical areas: stability, patterns of diversity, invasions, coexistence, and pattern generation. It illustrates both the diversity of approaches used to study spatial ecology and the underlying similarities of these approaches. Over twenty contributors address issues ranging from the persistence of endangered species, to the maintenance of biodiversity, to the dynamics of hosts and their parasitoids, to disease dynamics, multispecies competition, population genetics, and fundamental processes relevant to all these cases. There have been many recent advances in our understanding of the influence of spatially explicit processes on individual species and on multispecies communities. This book synthesizes these advances, shows the limitations of traditional, non-spatial approaches, and offers a variety of new approaches to spatial ecology that should stimulate ecological research. |
| competitive exclusion definition biology: Competition and Coexistence Ulrich Sommer, Boris Worm, 2012-12-06 The question Why are there so many species? has puzzled ecologist for a long time. Initially, an academic question, it has gained practical interest by the recent awareness of global biodiversity loss. Species diversity in local ecosystems has always been discussed in relation to the problem of competi tive exclusion and the apparent contradiction between the competitive exclu sion principle and the overwhelming richness of species found in nature. Competition as a mechanism structuring ecological communities has never been uncontroversial. Not only its importance but even its existence have been debated. On the one extreme, some ecologists have taken competi tion for granted and have used it as an explanation by default if the distribu tion of a species was more restricted than could be explained by physiology and dispersal history. For decades, competition has been a core mechanism behind popular concepts like ecological niche, succession, limiting similarity, and character displacement, among others. For some, competition has almost become synonymous with the Darwinian struggle for existence, although simple plausibility should tell us that organisms have to struggle against much more than competitors, e.g. predators, parasites, pathogens, and envi ronmental harshness. |
| competitive exclusion definition biology: Holism and Reductionism in Biology and Ecology Rick C. Looijen, 2012-12-06 Holism and reductionism are traditionally seen as incompatible views or approaches to nature. Here Looijen argues that they should rather be seen as mutually dependent and hence co-operating research programmes. He sheds some interesting new light on the emergence thesis, its relation to the reduction thesis, and on the role and status of functional explanations in biology. He discusses several examples of reduction in both biology and ecology, showing the mutual dependence of holistic and reductionist research programmes. Ecologists are offered separate chapters, clarifying some major, yet highly and controversial ecological concepts, such as `community', `habitat', and `niche'. The book is the first in-depth study of the philosophy of ecology. Readership: Specialists in the philosophy of science, especially the philosophy of biology, biologists and ecologists interested in the philosophy of their discipline. Also of interest to other scientists concerned with the holism-reductionism issue. |
| competitive exclusion definition biology: Handbook of Evolutionary Thinking in the Sciences Thomas Heams, Philippe Huneman, Guillaume Lecointre, Marc Silberstein, 2014-11-23 The Darwinian theory of evolution is itself evolving and this book presents the details of the core of modern Darwinism and its latest developmental directions. The authors present current scientific work addressing theoretical problems and challenges in four sections, beginning with the concepts of evolution theory, its processes of variation, heredity, selection, adaptation and function, and its patterns of character, species, descent and life. The second part of this book scrutinizes Darwinism in the philosophy of science and its usefulness in understanding ecosystems, whilst the third section deals with its application in disciplines beyond the biological sciences, including evolutionary psychology and evolutionary economics, Darwinian morality and phylolinguistics. The final section addresses anti-Darwinism, the creationist view and issues around teaching evolution in secondary schools. The reader learns how current experimental biology is opening important perspectives on the sources of variation, and thus of the very power of natural selection. This work examines numerous examples of the extension of the principle of natural selection and provides the opportunity to critically reflect on a rich theory, on the methodological rigour that presides in its extensions and exportations, and on the necessity to measure its advantages and also its limits. Scholars interested in modern Darwinism and scientific research, its concepts, research programs and controversies will find this book an excellent read, and those considering how Darwinism might evolve, how it can apply to the human sciences and other disciplines beyond its origins will find it particularly valuable. Originally produced in French (Les Mondes Darwiniens), the scope and usefulness of the book have led to the production of this English text, to reach a wider audience. This book is a milestone in the impressive penetration by Francophone scholars into the world of Darwinian science, its historiography and philosophy over the last two decades. Alex Rosenberg, R. Taylor Cole Professor of Philosophy, Duke University Until now this useful and comprehensive handbook has only been available to francophones. Thanks to this invaluable new translation, this collection of insightful and original essays can reach the global audience it deserves. Tim Lewens, University of Cambridge |
| competitive exclusion definition biology: Keywords in Evolutionary Biology Evelyn Fox Keller, Elisabeth Anne Lloyd, 1992 In science, more than elsewhere, a word is expected to mean what it says, nothing more, nothing less. But scientific discourse is neither different nor separable from ordinary language--meanings are multiple, ambiguities ubiquitous. Keywords in Evolutionary Biology grapples with this problem in a field especially prone to the confusion engendered by semantic imprecision. Written by historians, philosophers, and biologists--including, among others, Stephen Jay Gould, Diane Paul, John Beatty, Robert Richards, Richard Lewontin, David Sloan Wilson, Peter Bowler, and Richard Dawkins--these essays identify and explicate those terms in evolutionary biology which, though commonly used, are plagues by multiple concurrent and historically varying meanings. By clarifying these terms in their many guises, the editors Evelyn Fox Keller and Elisabeth Lloyd hope to focus attention on major scholarly problems in the field--problems sometimes obscured, sometimes reveals, and sometimes even created by the use of such equivocal words. Competition, adaptation, and fitness, for instance, are among the terms whose multiple meaning have led to more than merely semantic debates in evolutionary biology. Exploring the complexity of keywords and clarifying their role in prominent issues in the field, this book will prove invaluable to scientists and philosophers trying to come to terms with evolutionary theory; it will also serve as a useful guide to future research into the way in which scientific language works. |
| competitive exclusion definition biology: Feminism and Evolutionary Biology Patricia Gowaty, 2012-12-06 Standing at the intersection of evolutionary biology and feminist theory is a large audience interested in the questions one field raises for the other. Have evolutionary biologists worked largely or strictly within a masculine paradigm, seeing males as evolving and females as merely reacting passively or carried along with the tide? Would our view of nature `red in tooth in claw' be different if women had played a larger role in the creation of evolutionary theory and through education in its transmission to younger generations? Is there any such thing as a feminist science or feminist methodology? For feminists, does any kind of biological determinism undermine their contention that gender roles purely constructed, not inherent in the human species? Does the study of animals have anything to say to those preoccupied with the evolution and behavior of humans? All these questions and many more are addressed by this book, whose contributing authors include leading scholars in both feminism and evolutionary biology. Bound to be controversial, this book is addressed to evolutionary biologists and to feminists and to the large number of people interested in women's studies. |
| competitive exclusion definition biology: A TEXTBOOK OF ISC BIOLOGY for Class -XII Sarita Aggarwal, A Textbook of ISC Biology for XII |
| competitive exclusion definition biology: The Theory of Ecological Communities (MPB-57) Mark Vellend, 2020-09-15 A plethora of different theories, models, and concepts make up the field of community ecology. Amid this vast body of work, is it possible to build one general theory of ecological communities? What other scientific areas might serve as a guiding framework? As it turns out, the core focus of community ecology—understanding patterns of diversity and composition of biological variants across space and time—is shared by evolutionary biology and its very coherent conceptual framework, population genetics theory. The Theory of Ecological Communities takes this as a starting point to pull together community ecology's various perspectives into a more unified whole. Mark Vellend builds a theory of ecological communities based on four overarching processes: selection among species, drift, dispersal, and speciation. These are analogues of the four central processes in population genetics theory—selection within species, drift, gene flow, and mutation—and together they subsume almost all of the many dozens of more specific models built to describe the dynamics of communities of interacting species. The result is a theory that allows the effects of many low-level processes, such as competition, facilitation, predation, disturbance, stress, succession, colonization, and local extinction to be understood as the underpinnings of high-level processes with widely applicable consequences for ecological communities. Reframing the numerous existing ideas in community ecology, The Theory of Ecological Communities provides a new way for thinking about biological composition and diversity. |
| competitive exclusion definition biology: Parasite Diversity and Diversification Serge Morand, Boris R. Krasnov, D. Timothy J. Littlewood, 2015-02-26 By joining phylogenetics and evolutionary ecology, this book explores the patterns of parasite diversity while revealing diversification processes. |
| competitive exclusion definition biology: Ecological Niches and Geographic Distributions (MPB-49) A. Townsend Peterson, 2011-11-20 Terminology, conceptual overview, biogeography, modeling. |
| competitive exclusion definition biology: Comprehensive and Molecular Phytopathology Yuri Dyakov, Vitaly Dzhavakhiya, Timo Korpela, 2007-01-09 This book offers a collection of information on successive steps of molecular 'dialogue' between plants and pathogens. It additionally presents data that reflects intrinsic logic of plant-parasite interactions. New findings discussed include: host and non-host resistance, specific and nonspecific elicitors, elicitors and suppressors, and plant and animal immunity. This book enables the reader to understand how to promote or prevent disease development, and allows them to systematize their own ideas of plant-pathogen interactions.* Offers a more extensive scope of the problem as compared to other books in the market* Presents data to allow consideration of host-parasite relationships in dynamics and reveals interrelations between pathogenicity and resistance factors* Discusses beneficial plant-microbe interactions and practical aspects of molecular investigations of plant-parasite relationships* Compares historical study of common and specific features of plant immunity with animal immunity |
| competitive exclusion definition biology: Protecting Life on Earth Michael P. Marchetti, Peter B. Moyle, 2010-09 An excellent introduction to the science and policy of conservation biology for anyone interested in becoming better informed about today's pressing environmental challenges. Wayne P. Sousa, University of California, Berkeley -- |
| competitive exclusion definition biology: Virus as Populations Esteban Domingo, 2019-11-06 Virus as Composition, Complexity, Quasispecies, Dynamics, and Biological Implications, Second Edition, explains the fundamental concepts surrounding viruses as complex populations during replication in infected hosts. Fundamental phenomena in virus behavior, such as adaptation to changing environments, capacity to produce disease, and the probability to be transmitted or respond to treatment all depend on virus population numbers. Concepts such as quasispecies dynamics, mutations rates, viral fitness, the effect of bottleneck events, population numbers in virus transmission and disease emergence, and new antiviral strategies are included. The book's main concepts are framed by recent observations on general virus diversity derived from metagenomic studies and current views on the origin and role of viruses in the evolution of the biosphere. - Features current views on key steps in the origin of life and origins of viruses - Includes examples relating ancestral features of viruses with their current adaptive capacity - Explains complex phenomena in an organized and coherent fashion that is easy to comprehend and enjoyable to read - Considers quasispecies as a framework to understand virus adaptability and disease processes |
| competitive exclusion definition biology: What is Life? Addy Pross, 2012-09-27 Seventy years ago, Erwin Schrödinger posed a profound question: 'What is life, and how did it emerge from non-life?' This problem has puzzled biologists and physical scientists ever since. Living things are hugely complex and have unique properties, such as self-maintenance and apparently purposeful behaviour which we do not see in inert matter. So how does chemistry give rise to biology? What could have led the first replicating molecules up such a path? Now, developments in the emerging field of 'systems chemistry' are unlocking the problem. Addy Pross shows how the different kind of stability that operates among replicating molecules results in a tendency for chemical systems to become more complex and acquire the properties of life. Strikingly, he demonstrates that Darwinian evolution is the biological expression of a deeper, well-defined chemical concept: the whole story from replicating molecules to complex life is one continuous process governed by an underlying physical principle. The gulf between biology and the physical sciences is finally becoming bridged. This new edition includes an Epilogue describing developments in the concepts of fundamental forms of stability discussed in the book, and their profound implications. Oxford Landmark Science books are 'must-read' classics of modern science writing which have crystallized big ideas, and shaped the way we think. |
| competitive exclusion definition biology: Handbook of Bird Biology Irby J. Lovette, John W. Fitzpatrick, 2016-09-19 Selected by Forbes.com as one of the 12 best books about birds and birding in 2016 This much-anticipated third edition of the Handbook of Bird Biology is an essential and comprehensive resource for everyone interested in learning more about birds, from casual bird watchers to formal students of ornithology. Wherever you study birds your enjoyment will be enhanced by a better understanding of the incredible diversity of avian lifestyles. Arising from the renowned Cornell Lab of Ornithology and authored by a team of experts from around the world, the Handbook covers all aspects of avian diversity, behaviour, ecology, evolution, physiology, and conservation. Using examples drawn from birds found in every corner of the globe, it explores and distills the many scientific discoveries that have made birds one of our best known - and best loved - parts of the natural world. This edition has been completely revised and is presented with more than 800 full color images. It provides readers with a tool for life-long learning about birds and is suitable for bird watchers and ornithology students, as well as for ecologists, conservationists, and resource managers who work with birds. The Handbook of Bird Biology is the companion volume to the Cornell Lab's renowned distance learning course, www.birds.cornell.edu/courses/home/homestudy/. |
| competitive exclusion definition biology: Philosophy of Biology Alex Rosenberg, Daniel W. McShea, 2007-12-19 Is life a purely physical process? What is human nature? Which of our traits is essential to us? In this volume, Daniel McShea and Alex Rosenberg – a biologist and a philosopher, respectively – join forces to create a new gateway to the philosophy of biology; making the major issues accessible and relevant to biologists and philosophers alike. Exploring concepts such as supervenience; the controversies about genocentrism and genetic determinism; and the debate about major transitions central to contemporary thinking about macroevolution; the authors lay out the broad terms in which we should assess the impact of biology on human capacities, social institutions and ethical values. |
| competitive exclusion definition biology: The Struggle for Existence (Classic Reprint) G. F. Gause, 2017-11-27 Excerpt from The Struggle for Existence For three-quarters of a century past more has been written about natural selection and the struggle for existence that underlies the selective process, than perhaps about any other single idea in the whole realm of biology. We have seen natural selection laid on its Sterbebett, and subsequently revived again in the most recent times to a remarkable degree of vigor. There can be no doubt that the old idea has great survival value. The odd thing about the case, however, is that during all the years from 1859, when Darwin assembled in the Origin of Species a masterly array of concrete evidence for the reality of the struggle for existence and the process of natural selection, down to the present day, about all that biologists, by and large, have done regarding the idea is to talk and write. If ever an idea cried and begged for experimental testing and development, surely it was this one. Yet the whole array of experimental and statistical attempts in all these years to produce some significant new evidence about the nature and consequences of the struggle for existence is pitifully meager. Such contributions as those of Bumpus, Weldon, Pearson, and Harris are worthy of all praise, but there have been so very, very few of them. And there is surely something comic in the spectacle of laboratories overtly em barking upon the experimental study oi evolution and carefully thereafter avoiding any direct and purposeful attack upon a pertinent problem, the fundamental importance of which Darwin surely estab lished. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works. |
| competitive exclusion definition biology: Biology for AP ® Courses Julianne Zedalis, John Eggebrecht, 2017-10-16 Biology for AP® courses covers the scope and sequence requirements of a typical two-semester Advanced Placement® biology course. The text provides comprehensive coverage of foundational research and core biology concepts through an evolutionary lens. Biology for AP® Courses was designed to meet and exceed the requirements of the College Board’s AP® Biology framework while allowing significant flexibility for instructors. Each section of the book includes an introduction based on the AP® curriculum and includes rich features that engage students in scientific practice and AP® test preparation; it also highlights careers and research opportunities in biological sciences. |
| competitive exclusion definition biology: Dictionary of Theoretical Concepts in Biology Keith E. Roe, Richard G. Frederick, 1981 1166 concepts primarily from English-language articles, books, reviews, and histories published through 1979. Includes plant and animal biology; excludes, for the most part, human and behavioral biology. Each entry gives concept and relevant authoritative citations. Many cross references. |
| competitive exclusion definition biology: Ecology and Classification of North American Freshwater Invertebrates James H. Thorp, Alan P. Covich, 2010 The third edition of Ecology and Classification of North American Freshwater Invertebrates continues the tradition of in-depth coverage of the biology, ecology, phylogeny, and identification of freshwater invertebrates from the USA and Canada. This text serves as an authoritative single source for a broad coverage of the anatomy, physiology, ecology, and phylogeny of all major groups of invertebrates in inland waters of North America, north of Mexico. --Book Jacket. |
| competitive exclusion definition biology: The Meaning of Success Jo Bostock, 2014-03-06 The Meaning of Success: Insights from Women at Cambridge makes a compelling case for a more inclusive definition of success. It argues that in order to recognise, reward and realise the talents of both women and men, a more meaningful definition of success is needed. Practical ways of achieving this are explored through interviews with female role models at the University of Cambridge. First-person stories bring alive the achievements and challenges women experience in their working lives, and the effect gender has on careers. The book stimulates a debate about how to bring about a more inclusive working environment. |
| competitive exclusion definition biology: Plant Competition in a Changing World Judy Simon, Susanne Schmidt, 2017-06-22 Competitiveness describes a key ability important for plants to grow and survive abiotic and biotic stresses. Under optimal, but particularly under non-optimal conditions, plants compete for resources including nutrients, light, water, space, pollinators and other. Competition occurs above- and belowground. In resource-poor habitats, competition is generally considered to be more pronounced than in resource-rich habitats. Although competition occurs between different players within an ecosystem such as between plants and soil microorganisms, our topic focusses on plant-plant interactions and includes inter-specific competition between different species of similar and different life forms and intra-specific competition. Strategies for securing resources via spatial or temporal separation and different resource needs generally reduce competition. Increasingly important is the effect of invasive plants and subsequent decline in biodiversity and ecosystem function. Current knowledge and future climate predictions suggest that in some situations competition will be intensified with occurrence of increased abiotic (e.g. water and nutrient limitations) and biotic stresses (e.g. mass outbreak of insects), but competition might also decrease in situations where plant productivity and survival declines (e.g. habitats with degraded soils). Changing interactions, climate change and biological invasions place new challenges on ecosystems. Understanding processes and mechanisms that underlie the interactions between plants and environmental factors will aid predictions and intervention. There is much need to develop strategies to secure ecosystem services via primary productivity and to prevent the continued loss of biodiversity. This Research Topic provides an up-to-date account of knowledge on plant-plant interactions with a focus on identifying the mechanisms underpinning competitive ability. The Research Topic aims to showcase knowledge that links ecological relevance with physiological processes to better understanding plant and ecosystem function. |
| competitive exclusion definition biology: Niche Construction F. John Odling-Smee, Kevin N. Lala, Marcus Feldman, 2013-02-15 The seemingly innocent observation that the activities of organisms bring about changes in environments is so obvious that it seems an unlikely focus for a new line of thinking about evolution. Yet niche construction--as this process of organism-driven environmental modification is known--has hidden complexities. By transforming biotic and abiotic sources of natural selection in external environments, niche construction generates feedback in evolution on a scale hitherto underestimated--and in a manner that transforms the evolutionary dynamic. It also plays a critical role in ecology, supporting ecosystem engineering and influencing the flow of energy and nutrients through ecosystems. Despite this, niche construction has been given short shrift in theoretical biology, in part because it cannot be fully understood within the framework of standard evolutionary theory. Wedding evolution and ecology, this book extends evolutionary theory by formally including niche construction and ecological inheritance as additional evolutionary processes. The authors support their historic move with empirical data, theoretical population genetics, and conceptual models. They also describe new research methods capable of testing the theory. They demonstrate how their theory can resolve long-standing problems in ecology, particularly by advancing the sorely needed synthesis of ecology and evolution, and how it offers an evolutionary basis for the human sciences. Already hailed as a pioneering work by some of the world's most influential biologists, this is a rare, potentially field-changing contribution to the biological sciences. |
| competitive exclusion definition biology: Nature and Man's Fate Garrett Hardin, 2013-10 This is a new release of the original 1959 edition. |
| competitive exclusion definition biology: Ecological Niches Jonathan M. Chase, Mathew A. Leibold, 2003-07 Why do species live where they live? What determines the abundance and diversity of species in a given area? What role do species play in the functioning of entire ecosystems? All of these questions share a single core concept—the ecological niche. Although the niche concept has fallen into disfavor among ecologists in recent years, Jonathan M. Chase and Mathew A. Leibold argue that the niche is an ideal tool with which to unify disparate research and theoretical approaches in contemporary ecology. Chase and Leibold define the niche as including both what an organism needs from its environment and how that organism's activities shape its environment. Drawing on the theory of consumer-resource interactions, as well as its graphical analysis, they develop a framework for understanding niches that is flexible enough to include a variety of small- and large-scale processes, from resource competition, predation, and stress to community structure, biodiversity, and ecosystem function. Chase and Leibold's synthetic approach will interest ecologists from a wide range of subdisciplines. |
| competitive exclusion definition biology: A New Ecology Sven Erik Jørgensen, Brian D. Fath, Simone Bastianoni, Joao C. Marques, Felix Muller, S. Nors Nielsen, Bernard D. Patten, Enzo Tiezzi, Robert E. Ulanowicz, 2011-08-30 A New Ecology presents an ecosystem theory based on the following ecosystem properties: physical openness, ontic openness, directionality, connectivity, a complex dynamic for growth and development, and a complex dynamic response to disturbances. Each of these properties is developed in detail to show that these basic and characteristic properties can be applied to explain a wide spectrum of ecological obsevations and convections. It is also shown that the properties have application for environmental management and for assessment of ecosystem health.* Demonstrates an ecosystem theory that can be applied to explain ecological observations and rules* Presents an ecosystem theory based upon a systems approach* Discusses an ecosystem theory that is based on a few basic properties that are characteristic for ecosystmes |
| competitive exclusion definition biology: Anticipations David Seed, 1995-05-01 This volume of essays examines early, primarily nineteenth-century, examples of science. fiction. The essays focus particularly on how this fiction engages with such contemporary issues as exploration, the development of science and social planning. Several of the writers discussed (Mary Shelley, Poe, Verne, Wells) have been proposed by literary historians as the founders of science fiction. The aim in these essays, however, is not to privilege one individual, but rather to look at the gradual convergence of a number of different genres and at the process of continuing influence of one writer on his/her successor. The collection strikes a balance between a discussion of the established names within the field and less well known works such as Symzonia and The Battle of Darking. The volume concludes with a consideration of the utopias and dystopias of the late nineteenth and early twentieth centuries. |
| competitive exclusion definition biology: Fungi Kevin Kavanagh, 2011-08-04 Fungi: Biology and Applications, Second Edition provides a comprehensive treatment of fungi, covering biochemistry, genetics and the medical and economic significance of these organisms at introductory level. With no prior knowledge of the subject assumed, the opening chapters offer a broad overview of the basics of fungal biology, in particular the physiology and genetics of fungi and also a new chapter on the application of genomics to fungi. Later chapters move on to include more detailed coverage of topics such as antibiotic and chemical commodities from fungi, new chapters on biotechnological use of fungal enzymes and fungal proteomics, and fungal diseases of humans, antifungal agents for use in human therapy and fungal pathogens of plants. |
| competitive exclusion definition biology: Environmental Biology Michael Reiss, Jenny Chapman, 2000-09-07 A range of textbooks and teacher support materials for AS and A level Pre 2008 specification. See Cambridge OCR Advanced Sciences for the New 2008 OCR Specification. |
| competitive exclusion definition biology: The World of Biology P. William Davis, Eldra Pearl Solomon, Linda R. Berg, 1990 Includes bibliographical references and index. |
| competitive exclusion definition biology: Trophic and Guild Interactions in Biological Control Jacques Brodeur, Guy Boivin, 2007-06-03 This volume explores modern concepts of trophic and guild interactions among natural enemies in natural and agricultural ecosystems - a field that has become a hot topic in ecology and biological control over the past decade. It is the first book on trophic and guild interactions to make the link to biological control, and is compiled by internationally recognized scientists who have combined their expertise. |
COMPETITIVE Definition & Meaning - Merriam-Webster
The meaning of COMPETITIVE is relating to, characterized by, or based on competition. How to use competitive in a sentence.
COMPETITIVE | English meaning - Cambridge Dictionary
COMPETITIVE definition: 1. involving competition: 2. wanting very much to win or be more successful than other people: 3…. Learn more.
Competitive - definition of competitive by The Free Dictionary
1. involving or determined by rivalry: competitive sports. 2. (Commerce) sufficiently low in price or high in quality to be successful against commercial rivals. 3. relating to or characterized by an …
COMPETITIVE Definition & Meaning - Dictionary.com
What does competitive mean? Competitive is most commonly used to describe a person who has a strong desire to compete and win. Competitive is commonly associated with sports, but it is …
COMPETITIVE - Definition & Translations | Collins English Dictionary
Competitive is used to describe situations or activities in which people or companies compete with each other. 2. A competitive person is eager to be more successful than other people.
competitive adjective - Definition, pictures, pronunciation and …
Definition of competitive adjective in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
Competitive Definition & Meaning | Britannica Dictionary
COMPETITIVE meaning: 1 : of or relating to a situation in which people or groups are trying to win a contest or be more successful than others relating to or involving competition; 2 : having a …
What does competitive mean? - Definitions.net
Competitive refers to the scenario or tendency of individuals, organizations or nations attempting to achieve superiority, dominance, or success over others in a particular field, activity, or aspect.
Competitive - Definition, Meaning & Synonyms - Vocabulary.com
If you're competitive, you want to be the best. No one likes to lose, but if you are a competitive person, it will be especially disappointing to see someone else win. People who are …
COMPETITIVE Synonyms: 65 Similar and Opposite Words - Merriam-Webster
Synonyms for COMPETITIVE: competing, diligent, hungry, aggressive, motivated, dynamic, driving, determined; Antonyms of COMPETITIVE: disinterested, indifferent, uninterested, …
COMPETITIVE Definition & Meaning - Merriam-Webster
The meaning of COMPETITIVE is relating to, characterized by, or based on competition. How to use competitive in a sentence.
COMPETITIVE | English meaning - Cambridge Dictionary
COMPETITIVE definition: 1. involving competition: 2. wanting very much to win or be more successful than other people: 3…. Learn more.
Competitive - definition of competitive by The Free Dictionary
1. involving or determined by rivalry: competitive sports. 2. (Commerce) sufficiently low in price or high in quality to be successful against commercial rivals. 3. relating to or characterized by an …
COMPETITIVE Definition & Meaning - Dictionary.com
What does competitive mean? Competitive is most commonly used to describe a person who has a strong desire to compete and win. Competitive is commonly associated with sports, but it is …
COMPETITIVE - Definition & Translations | Collins English Dictionary
Competitive is used to describe situations or activities in which people or companies compete with each other. 2. A competitive person is eager to be more successful than other people.
competitive adjective - Definition, pictures, pronunciation and …
Definition of competitive adjective in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
Competitive Definition & Meaning | Britannica Dictionary
COMPETITIVE meaning: 1 : of or relating to a situation in which people or groups are trying to win a contest or be more successful than others relating to or involving competition; 2 : having a …
What does competitive mean? - Definitions.net
Competitive refers to the scenario or tendency of individuals, organizations or nations attempting to achieve superiority, dominance, or success over others in a particular field, activity, or aspect.
Competitive - Definition, Meaning & Synonyms - Vocabulary.com
If you're competitive, you want to be the best. No one likes to lose, but if you are a competitive person, it will be especially disappointing to see someone else win. People who are …
COMPETITIVE Synonyms: 65 Similar and Opposite Words - Merriam-Webster
Synonyms for COMPETITIVE: competing, diligent, hungry, aggressive, motivated, dynamic, driving, determined; Antonyms of COMPETITIVE: disinterested, indifferent, uninterested, …
