Food webs hold a central place in ecology. They describe which organisms feed on which others in natural habitats. This book describes recently discovered empirical regularities in real food webs: it proposes a novel theory unifying many of these regularities, as well as extensive empirical data.

Contenuti

I. General Introduction.- � 0. Food Webs and Community Structure.- II. Empirical Regularities.- � 0. Untangling an Entangled Bank.- A. General Regularities.- � 1. Ratio of Prey to Predators in Community Food Webs.- � 2. Community Food Webs Have Scale-Invariant Structure.- � 3. Trophic Links of Community Food Webs.- � 4. Food Webs and the Dimensionality of Trophic Niche Space.- B. Differential Regularities.- � 5. Environmental Control of Food Web Structure.- � 6. Environmental Correlates of Food Chain Length.- III. A Stochastic Theory of Community Food Webs.- � 1. Theory: Circles of Complexity, Spherical Horses.- � 2. Models and Aggregated Data.- � 3. Individual Webs.- � 4. Predicted and Observed Lengths of Food Chains.- � 5. Theory of Food Chain Lengths in Large Webs.- � 6. Intervality and Triangulation in the Trophic Niche Overlap Graph.- IV. Data on 113 Community Food Webs.- References.- Acknowledgements.- Authors Index.

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