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Multivariate analysis in community ecology
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ISBN: 051162333X Year: 1982 Publisher: Cambridge : Cambridge University Press,

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Ecologists are making increasing use of computer methods in analyzing ecological data on plant and animal communities. Ecological problems naturally involve numerous variables and numerous individuals or samples. Multivariate techniques permit the summary of large, complex sets of data and provide the means to tackle many problems that cannot be investigated experimentally because of practical restraints. Ecologists are thus enabled to group similar species and similar sample sites together, and to generate hypotheses about environmental and historical factors that affect the communities. This timely book presents a full critical description of three methodologies - direct gradient analysis, ordination, and classification - from both theoretical and practical viewpoints. Both traditional and new methods are presented. Using a wide range of illustrative examples, Hugh Gauch provides an up-to-date synthesis of this field, which will be of interest to advanced students and ecologists. These mathematical tools are also used in a wide variety of other areas, from natural resource management and agronomy to the social and political sciences.

Resource competition and community structure
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ISBN: 0691083010 0691083029 9780691083025 Year: 1982 Volume: 17 Publisher: Princeton, N.J. : Princeton University Press,

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One of the central questions of ecology is why there are so many different kinds of plants and animals. Here David Tilman presents a theory of how organisms compete for resources and the way their competition promotes diversity. Developing Hutchinson's suggestion that the main cause of diversity is the feeding relations of species, this book builds a mechanistic, resource-based explanation of the structure and functioning of ecological communities. In a detailed analysis of the Park Grass Experiments at the Rothamsted Experimental Station in England, the author demonstrates that the dramatic results of these 120 years of experimentation are consistent with his theory, as are observations in many other natural communities. The consumer-resource approach of this book is applicable to both animal and plant communities, but the majority of Professor Tilman's discussion concentrates on the structure of plant communities. All theoretical arguments are developed graphically, and formal mathematics is kept to a minimum. The final chapters of the book provide some testable speculations about resources and animal communities and explore such problems as the evolution of "super species," the differences between plant and animal community diversity patterns, and the cause of plant succession.


Book
Food webs
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ISBN: 041223100X 0412231107 9400959273 9400959257 9780412231100 Year: 1982 Publisher: London,New York : Chapman and Hall,

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Analyse fréquentielle de l'écologie des espèces dans les communautés
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ISBN: 2225780900 9782225780905 Year: 1982 Volume: 18 Publisher: Paris Masson


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The plant community as a working mechanism
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ISBN: 0632008393 9780632008391 Year: 1982 Volume: 1 Publisher: Oxford Blackwell


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Die wichtigsten Pflanzengesellschaften der Moore NW-Europas
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ISBN: 2827701065 Year: 1982 Publisher: Genève : Conservatoire et jardin botaniques de la ville de Genève,


Book
Biological Diversification in the tropics : Proceedings of the fifth internationaly symposium of the association for tropical biology, held at macuto beach, caracas, venezuela, februari 8-13, 1979.
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ISBN: 0231048769 Year: 1982 Publisher: New York Columbia University Press

Les fôrets de Pinus Cembroides s.l. au Mexique : étude phytogéographiques et écologique.
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ISBN: 2865380378 Year: 1982 Publisher: Paris Recherche sur les civilisations


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Energie: recherche, developpement et demonstration dans les pays membres de l'AIE : examen 1980 des programmes nationaux.
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ISBN: 9264222510 9789264222519 Year: 1982 Publisher: PARIS: OCDE,

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This report examines the key design and implementation features that need to be considered to ensure that biodiversity offset programmes are environmentally effective, economically efficient, and distributionally equitable. Biodiversity offsets are being increasingly used in a wide range of sectors as a mechanism to help compensate for the adverse effects caused by development projects in a variety of ecosystems. In this report, insights and lessons learned are drawn from more than 40 case studies from around the world, with an additional 3 in-depth country case studies from the United States, Germany and Mexico.

Application of vegetation science to forestry
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ISBN: 9061931932 Year: 1982 Volume: pt. 12 Publisher: The Hague Junk

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