Populations Biocommunities Ecosystems

Author : Michel Loreau
Publisher : Princeton University Press
Page : 317 pages
File Size : 44,7 Mb
Release : 2010-07-01
Category : Science
ISBN : 9781400834167

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From Populations to Ecosystems by Michel Loreau Pdf

The major subdisciplines of ecology--population ecology, community ecology, ecosystem ecology, and evolutionary ecology--have diverged increasingly in recent decades. What is critically needed today is an integrated, real-world approach to ecology that reflects the interdependency of biodiversity and ecosystem functioning. From Populations to Ecosystems proposes an innovative theoretical synthesis that will enable us to advance our fundamental understanding of ecological systems and help us to respond to today's emerging global ecological crisis. Michel Loreau begins by explaining how the principles of population dynamics and ecosystem functioning can be merged. He then addresses key issues in the study of biodiversity and ecosystems, such as functional complementarity, food webs, stability and complexity, material cycling, and metacommunities. Loreau describes the most recent theoretical advances that link the properties of individual populations to the aggregate properties of communities, and the properties of functional groups or trophic levels to the functioning of whole ecosystems, placing special emphasis on the relationship between biodiversity and ecosystem functioning. Finally, he turns his attention to the controversial issue of the evolution of entire ecosystems and their properties, laying the theoretical foundations for a genuine evolutionary ecosystem ecology. From Populations to Ecosystems points the way to a much-needed synthesis in ecology, one that offers a fuller understanding of ecosystem processes in the natural world.

Author : D. L. DeAngelis
Publisher : CRC Press
Page : 545 pages
File Size : 40,9 Mb
Release : 2018-01-18
Category : Mathematics
ISBN : 9781351090360

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Individual-Based Models and Approaches In Ecology by D. L. DeAngelis Pdf

Until fairly recently, populations were handled as homogenized averages, which made modeling feasible but which ignored the essential fact that in any population there is a great variety of individuals of different ages, sizes, and degrees of fitness. Recently, because of the increased availability of affordable computer power, approaches have been developed which are able to recognize individual differences. Individual-based models are of great use in the areas of aquatic ecology, terrestrial ecology, landscape or physiological ecology, terrestrial ecology, landscape or physiological ecology, and agriculture. This book discusses which biological problems individual-based models can solve, as well as the models' inherent limitations. It explores likely future directions of theoretical development in these models, as well as currently feasible management applications and the best mathematical approaches and computer languages to use. The book also details specific applications to theory and management.

Author : National Research Council,Division on Earth and Life Studies,Commission on Life Sciences,Board on Biology,Committee on Research Opportunities in Biology
Publisher : National Academies
Page : 471 pages
File Size : 45,9 Mb
Release : 1989-01-01
Category : Science
ISBN : 9780309039277

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Opportunities in Biology by National Research Council,Division on Earth and Life Studies,Commission on Life Sciences,Board on Biology,Committee on Research Opportunities in Biology Pdf

Biology has entered an era in which interdisciplinary cooperation is at an all-time high, practical applications follow basic discoveries more quickly than ever before, and new technologiesâ€"recombinant DNA, scanning tunneling microscopes, and moreâ€"are revolutionizing the way science is conducted. The potential for scientific breakthroughs with significant implications for society has never been greater. Opportunities in Biology reports on the state of the new biology, taking a detailed look at the disciplines of biology; examining the advances made in medicine, agriculture, and other fields; and pointing out promising research opportunities. Authored by an expert panel representing a variety of viewpoints, this volume also offers recommendations on how to meet the infrastructure needsâ€"for funding, effective information systems, and other supportâ€"of future biology research. Exploring what has been accomplished and what is on the horizon, Opportunities in Biology is an indispensable resource for students, teachers, and researchers in all subdisciplines of biology as well as for research administrators and those in funding agencies.

Author : David A. Wardle
Publisher : Princeton University Press
Page : 400 pages
File Size : 44,6 Mb
Release : 2002-05-12
Category : Science
ISBN : 9780691074870

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Communities and Ecosystems by David A. Wardle Pdf

Soil.

Author : John Pastor
Publisher : John Wiley & Sons
Page : 358 pages
File Size : 41,8 Mb
Release : 2011-08-31
Category : Science
ISBN : 9781444358452

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Mathematical Ecology of Populations and Ecosystems by John Pastor Pdf

MATHEMATICAL ECOLOGY Population ecologists study how births and deaths affect the dynamics of populations and communities, while ecosystem ecologists study how species control the flux of energy and materials through food webs and ecosystems. Although all these processes occur simultaneously in nature, the mathematical frameworks bridging the two disciplines have developed independently. Consequently, this independent development of theory has impeded the cross-fertilization of population and ecosystem ecology. Using recent developments from dynamical systems theory, this advanced undergraduate/graduate level textbook shows how to bridge the two disciplines seamlessly. The book shows how bifurcations between the solutions of models can help understand regime shifts in natural populations and ecosystems once thresholds in rates of births, deaths, consumption, competition, nutrient inputs, and decay are crossed. Mathematical Ecology is essential reading for students of ecology who have had a first course in calculus and linear algebra or students in mathematics wishing to learn how dynamical systems theory can be applied to ecological problems.

Author : Donald DeAngelis
Publisher : Springer
Page : 525 pages
File Size : 45,5 Mb
Release : 1992-08-06
Category : Science
ISBN : 0412031612

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Individual-Based Models and Approaches in Ecology by Donald DeAngelis Pdf

Author : E. C. Pielou
Publisher : CRC Press
Page : 440 pages
File Size : 42,9 Mb
Release : 1974
Category : Science
ISBN : 0677035802

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Population and Community Ecology by E. C. Pielou Pdf

Author : Robert Harding Whittaker
Publisher : Unknown
Page : 432 pages
File Size : 54,7 Mb
Release : 1975
Category : Science
ISBN : UCSD:31822012741260

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Communities and Ecosystems by Robert Harding Whittaker Pdf

Introduction; Populations; Community structure and composition; Communities and environments; Production; Nutrient circulation; Pollution; Conclusion.

Author : Samantha Fowler,Rebecca Roush,James Wise
Publisher : Unknown
Page : 618 pages
File Size : 42,8 Mb
Release : 2018-01-07
Category : Science
ISBN : 9888407457

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Concepts of Biology by Samantha Fowler,Rebecca Roush,James Wise Pdf

Concepts of Biology is designed for the single-semester introduction to biology course for non-science majors, which for many students is their only college-level science course. As such, this course represents an important opportunity for students to develop the necessary knowledge, tools, and skills to make informed decisions as they continue with their lives. Rather than being mired down with facts and vocabulary, the typical non-science major student needs information presented in a way that is easy to read and understand. Even more importantly, the content should be meaningful. Students do much better when they understand why biology is relevant to their everyday lives. For these reasons, Concepts of Biology is grounded on an evolutionary basis and includes exciting features that highlight careers in the biological sciences and everyday applications of the concepts at hand.We also strive to show the interconnectedness of topics within this extremely broad discipline. In order to meet the needs of today's instructors and students, we maintain the overall organization and coverage found in most syllabi for this course. A strength of Concepts of Biology is that instructors can customize the book, adapting it to the approach that works best in their classroom. Concepts of Biology also includes an innovative art program that incorporates critical thinking and clicker questions to help students understand--and apply--key concepts.

Author : Clive G. Jones,John H. Lawton
Publisher : Springer Science & Business Media
Page : 403 pages
File Size : 47,9 Mb
Release : 2012-12-06
Category : Science
ISBN : 9781461517733

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Linking Species & Ecosystems by Clive G. Jones,John H. Lawton Pdf

I was asked to introduce this volume by examining "why a knowledge of ecosys tem functioning can contribute to understanding species activities, dynamics, and assemblages." I have found it surprisingly difficult to address this topic. On the one hand, the answer is very simple and general: because all species live in ecosystems, they are part of and dependent on ecosystem processes. It is impossible to understand the abundance and distribution of populations and the species diversity and composition of communities without a knowledge of their abiotic and biotic environments and of the fluxes of energy and mat ter through the ecosystems of which they are a part. But everyone knows this. It is what ecology is all about (e.g., Likens, 1992). It is why the discipline has retained its integrity and thrived, despite a sometimes distressing degree of bickering and chauvinism among its various subdisciplines: physiological, be havioral, population, community, and ecosystem ecology.

Author : Robert V. O'Neill,Donald Lee Deangelis,J. B. Waide,Timothy F.H. Allen
Publisher : Princeton University Press
Page : 266 pages
File Size : 50,9 Mb
Release : 2021-09-14
Category : Science
ISBN : 9780691236605

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A Hierarchical Concept of Ecosystems. (MPB-23), Volume 23 by Robert V. O'Neill,Donald Lee Deangelis,J. B. Waide,Timothy F.H. Allen Pdf

"Ecosystem" is an intuitively appealing concept to most ecologists, but, in spite of its widespread use, the term remains diffuse and ambiguous. The authors of this book argue that previous attempts to define the concept have been derived from particular viewpoints to the exclusion of others equally possible. They offer instead a more general line of thought based on hierarchy theory. Their contribution should help to counteract the present separation of subdisciplines in ecology and to bring functional and population/community ecologists closer to a common approach. Developed as a way of understanding highly complex organized systems, hierarchy theory has at its center the idea that organization results from differences in process rates. To the authors the theory suggests an objective way of decomposing ecosystems into their component parts. The results thus obtained offer a rewarding method for integrating various schools of ecology.

Author : Michael Begon,Colin R. Townsend
Publisher : John Wiley & Sons
Page : 864 pages
File Size : 54,8 Mb
Release : 2020-11-11
Category : Science
ISBN : 9781119279372

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Ecology by Michael Begon,Colin R. Townsend Pdf

A definitive guide to the depth and breadth of the ecological sciences, revised and updated The revised and updated fifth edition of Ecology: From Individuals to Ecosystems – now in full colour – offers students and practitioners a review of the ecological sciences. The previous editions of this book earned the authors the prestigious ‘Exceptional Life-time Achievement Award’ of the British Ecological Society – the aim for the fifth edition is not only to maintain standards but indeed to enhance its coverage of Ecology. In the first edition, 34 years ago, it seemed acceptable for ecologists to hold a comfortable, objective, not to say aloof position, from which the ecological communities around us were simply material for which we sought a scientific understanding. Now, we must accept the immediacy of the many environmental problems that threaten us and the responsibility of ecologists to play their full part in addressing these problems. This fifth edition addresses this challenge, with several chapters devoted entirely to applied topics, and examples of how ecological principles have been applied to problems facing us highlighted throughout the remaining nineteen chapters. Nonetheless, the authors remain wedded to the belief that environmental action can only ever be as sound as the ecological principles on which it is based. Hence, while trying harder than ever to help improve preparedness for addressing the environmental problems of the years ahead, the book remains, in its essence, an exposition of the science of ecology. This new edition incorporates the results from more than a thousand recent studies into a fully up-to-date text. Written for students of ecology, researchers and practitioners, the fifth edition of Ecology: From Individuals to Ecosystems is anessential reference to all aspects of ecology and addresses environmental problems of the future.

Author : Robert H. Whittaker
Publisher : Unknown
Page : 174 pages
File Size : 41,8 Mb
Release : 1970
Category : Electronic
ISBN : 8210379456XXX

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Communities and Ecosystems by Robert H. Whittaker Pdf

Author : Lisa Bartee,Walter Shiner,Catherine Creech
Publisher : Unknown
Page : 128 pages
File Size : 52,8 Mb
Release : 2017
Category : Electronic
ISBN : 1636350410

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Principles of Biology by Lisa Bartee,Walter Shiner,Catherine Creech Pdf

The Principles of Biology sequence (BI 211, 212 and 213) introduces biology as a scientific discipline for students planning to major in biology and other science disciplines. Laboratories and classroom activities introduce techniques used to study biological processes and provide opportunities for students to develop their ability to conduct research.

Author : Mark Vellend
Publisher : Princeton University Press
Page : 246 pages
File Size : 47,6 Mb
Release : 2020-09-15
Category : Science
ISBN : 9780691208992

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The Theory of Ecological Communities (MPB-57) by Mark Vellend Pdf

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.