Roos andre (57 résultats)

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Etat : New. Offers an individual-based theory of the effects of the plastic ontogenetic development on the dynamics of populations and communities. This title shows how the effects of ontogenetic development on ecological dynamics critically depend on the efficiency with which differently sized individuals convert food into biomass. Series: Monographs in Population Biology. Num Pages: 552 pages, 125 line illus. 10 tables. BIC Classification: PSAF; PSC. Category: (P) Professional & Vocational; (U) Tertiary Education (US: College). Dimension: 241 x 160 x 40. Weight in Grams: 872. . 2013. hardcover. Not a first edition copy. . . . Books ship from the US and Ireland.…

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[0-8020-3449-7] [1988]. (Small 4to) Fine in fine dust jacket. 336pp. Photographs, illustrations, index. Sponsored by the Canadian Public Works Association. Contributors include Letty Anderson (Water-Supply), Christopher Andreae (Railways), Alan F.J. Artibise (Building Cities), Douglas Baldwin (Sewerage), A.A. den Otter (Irrigation and Flood Control), Mark Fram (Public Buildings), Julie Harris (Airports), Paul-Andre Linteau (Urban Mass Transit), Larry McNally (Roads, Streets, and Highways), Robert W. Passfield (Waterways), Arnold Roos (Electricity), Phyllis Rose (Bridges), Phyllis Rose (Solid Waste). Preface by William D. Hurst. (Canada, Airports, Bridges, Electricity, Flood Control, Highways, Irrigation, Public Works, Public Works--Canada, Railways).…

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Hardback. Etat : New. Most organisms show substantial changes in size or morphology after they become independent of their parents and have to find their own food. Furthermore, the rate at which these changes occur generally depends on the amount of food they ingest. In this book, Andre de Roos and Lennart Persson advance a synthetic and individual-based theory of the effects of this plastic ontogenetic development on the dynamics of populations and communities. De Roos and Persson show how the effects of ontogenetic development on ecological dynamics critically depend on the efficiency with which differently sized individuals convert food into new biomass. Differences in this efficiency--or ontogenetic asymmetry--lead to bottlenecks in and thus population regulation by either maturation or reproduction. De Roos and Persson investigate the community consequences of these bottlenecks for trophic configurations that vary in the number and type of interacting species and in the degree of ontogenetic niche shifts exhibited by their individuals.They also demonstrate how insights into the effects of maturation and reproduction limitation on community equilibrium carry over to the dynamics of size-structured populations and give rise to different types of cohort-driven cycles. Featuring numerous examples and tests of modeling predictions, this book provides a pioneering and extensive theoretical and empirical treatment of the ecology of ontogenetic growth and development in organisms, emphasizing the importance of an individual-based perspective for understanding population and community dynamics.…

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Hardback. Etat : New. Most organisms show substantial changes in size or morphology after they become independent of their parents and have to find their own food. Furthermore, the rate at which these changes occur generally depends on the amount of food they ingest. In this book, Andre de Roos and Lennart Persson advance a synthetic and individual-based theory of the effects of this plastic ontogenetic development on the dynamics of populations and communities. De Roos and Persson show how the effects of ontogenetic development on ecological dynamics critically depend on the efficiency with which differently sized individuals convert food into new biomass. Differences in this efficiency--or ontogenetic asymmetry--lead to bottlenecks in and thus population regulation by either maturation or reproduction. De Roos and Persson investigate the community consequences of these bottlenecks for trophic configurations that vary in the number and type of interacting species and in the degree of ontogenetic niche shifts exhibited by their individuals.They also demonstrate how insights into the effects of maturation and reproduction limitation on community equilibrium carry over to the dynamics of size-structured populations and give rise to different types of cohort-driven cycles. Featuring numerous examples and tests of modeling predictions, this book provides a pioneering and extensive theoretical and empirical treatment of the ecology of ontogenetic growth and development in organisms, emphasizing the importance of an individual-based perspective for understanding population and community dynamics.…

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