[PDF] Overlap In Resource Use And Interspecific Competition eBook

Author : André A. Dhondt
Publisher : Oxford University Press
Page : 295 pages
File Size : 24,93 MB
Release : 2012
Category : Nature
ISBN : 0199589011

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Provides a current, critical review of the importance of interspecific competition, considering the evolutionary effects of interspecific competition, its importance in structuring communities, and influence on the traits of individual species.

Author : Ulrich Sommer
Publisher : Springer Science & Business Media
Page : 232 pages
File Size : 49,37 MB
Release : 2012-12-06
Category : Science
ISBN : 3642561667

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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.

Author : Peter J. Morin
Publisher : John Wiley & Sons
Page : 417 pages
File Size : 18,7 MB
Release : 2009-04-13
Category : Science
ISBN : 1444312316

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Community ecology: the study of the patterns and processes involving two or more species - has developed rapidly in the last two decades, driven by new and more sophisticated research techniques, advances in mathematical theory and modeling, and the increasing pressure on the environment wrought by humans. Once a purely descriptive science, it is now one of the most forward-looking areas of scientific inquiry. Morin skillfully guides the reader through the main tenets and central concepts of community ecology - competition, predation, food webs, indirect effects, habitat selection, diversity, and succession. In an attempt to introduce the reader to the most balanced coverage possible, Morin includes examples drawn from both the aquatic and terrestrial realm and from both plant and animal species. Balancing theory with experimentation and drawing on exciting new studies to complement the historical foundations of the discipline, he also stresses that both the empirical and theoretical approaches are necessary to drive ecology foward into the new millenium. The final chapter on applied community ecology ably demonstrates how community ecological processes have a wide environmental relevance. Although in its infancy, the application of community ecology to emerging problems in human-dominated ecosystems could mitigate problems as diverse as management strategies for important diseases transmitted by animals and the restoration and reconstruction of viable communities. Required reading for all students and practitioners interested in community phenomena, Community Ecology marks an important contribution to the development of this protean discipline. The first serious textbook for a decade on one of the keystone subdisciplines of ecology. Broad taxonomic and habitat coverage. Section on implications of community ecology for environmental issues.

Author : George Gaylord Simpson
Publisher : Courier Corporation
Page : 454 pages
File Size : 26,97 MB
Release : 2012-02-10
Category : Science
ISBN : 0486161110

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This classic focuses on the gathering, handling, and interpretation of numerical data from zoological investigations. Contents include types and properties of numerical data, mensuration, frequency distributions and grouping, patterns of frequency distributions, measures of central tendency, measures of dispersion and variability, populations and samples, and probability. "Excellent." — Florida Scientist.

Author : Michael J. Fogarty
Publisher : Oxford University Press
Page : 336 pages
File Size : 27,7 MB
Release : 2020-07-24
Category : Science
ISBN : 0191081604

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Fisheries supply a critically important ecosystem service by providing over three billion people with nearly 20% of their daily animal protein intake. Yet one third of the world's fish stocks are currently harvested at unsustainable levels. Calls for the adoption of more holistic approaches to management that incorporate broader ecosystem principles are now being translated into action worldwide to meet this challenge. The transition from concept to implementation is accompanied by the need to further establish and evaluate the analytical framework for Ecosystem-Based Fishery Management (EBFM). The objectives of this novel textbook are to provide an introduction to this topic for the next generation of scientists who will carry on this work, to illuminate the deep and often underappreciated connections between basic ecology and fishery science, and to explore the implications of these linkages in formulating management strategies for the 21st century. Fishery Ecosystem Dynamics will be of great use to graduate level students as well as academic researchers and professionals (both governmental and NGO) in the fields of fisheries ecology and management.

Author : R.J. Putman
Publisher : Springer Science & Business Media
Page : 156 pages
File Size : 27,64 MB
Release : 2012-12-06
Category : Science
ISBN : 9400915179

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Rory Putman addresses the question of how, in many temporate ecosystems, diverse and species-rich assemblies of ungulates manage to co-exist despite often quite extensive overlap in ecological requirements. Putman explores the potential for competition, competition tolerance and even positive facilitation amongst the members of such guilds of ungulates. As a central worked example, the author employs data resulting from over 20 years of personal research into the ecology and population dynamics of various large herbivores of the New Forest in Southern England. With these, he applies formal protocols in resource use, evidence for resource limitation and evidence for interaction between species in changing population size over the years.

Author : M. Tokeshi
Publisher : John Wiley & Sons
Page : 464 pages
File Size : 40,10 MB
Release : 2009-06-22
Category : Science
ISBN : 1444313355

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As a novel endeavour in ecological science, this book focuses on amajor issue in organismal life on Earth:species coexistence. Thebook crosses the usual disciplinary boundaries betweenpalaeobiology, ecology and evolutionary biology and provides atimely overview of the patterns and processes of species diversityand coexistence on a range of spatio-temporal scales. In thisunique synthesis, the author offers a critical and penetratingexamination of the concepts and models of coexistence and communitystructure, thus making a valuable contribution to the field ofcommunity ecology. There is an emphasis on clarity andaccessibility without sacrificing scientific rigour, making thisbook suitable for both advanced students and individual researchersin ecology, palaeobiology and environmental and evolutionarybiology. Comprehensive and contemporary synthesis. Pulls together the aggregate influence of evolution and ecologyon patterns in communities. Balanced mix of theory and empirical work. Clearly structured chapters with short introduction andsummary.

Author : Gary G. Mittelbach
Publisher : Oxford University Press, USA
Page : 430 pages
File Size : 13,53 MB
Release : 2019-06-05
Category :
ISBN : 019883585X

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Community ecology has undergone a transformation in recent years, from a discipline largely focused on processes occurring within a local area to a discipline encompassing a much richer domain of study, including the linkages between communities separated in space (metacommunity dynamics), niche and neutral theory, the interplay between ecology and evolution (eco-evolutionary dynamics), and the influence of historical and regional processes in shaping patterns of biodiversity. To fully understand these new developments, however, students continue to need a strong foundation in the study of species interactions and how these interactions are assembled into food webs and other ecological networks. This new edition fulfils the book's original aims, both as a much-needed up-to-date and accessible introduction to modern community ecology, and in identifying the important questions that are yet to be answered. This research-driven textbook introduces state-of-the-art community ecology to a new generation of students, adopting reasoned and balanced perspectives on as-yet-unresolved issues. Community Ecology is suitable for advanced undergraduates, graduate students, and researchers seeking a broad, up-to-date coverage of ecological concepts at the community level.