Issues: Why link species and ecosystems?: a perspective from ecosystem ecology-- Nancy B. Grimm; Organisms and species as complex adaptive systems: linking the biology of populations with the physics of ecosystems-- James H. Brown; Scope: Bioturbators as ecosystem engineers: control of the sediment fabric, inter-individual interactions, and material fluxes-- Jeffrey Levinton; Biogeochemical processes and marine benthic community structure: which follows which?-- Anne E. Giblin, Kenneth H. Foreman and Gary T. Banta; Marine snow: what it is and how it affects ecosystem functioning-- M. W. Silver, S. L. Coale, D. K. Steinberg and C. H. Pilskahn; Floods, food chains, and ecosystem processes in rivers-- Mary E. Power; Population variability in experimental ecosystems-- Michael L. Pace; Stephen R. Carpenter, and Patricia A. Soranno; How important are consumer species to ecosystem functioning?-- Nancy Huntly; Linking tree population dynamics and forest ecosystem processes-- Charles D. Canham and Stephen W. Pacala; Soil organisms as engineers: microsite modulation of macroscale processes-- J. M. Anderson; Soil fauna: linking different levels of the ecological hierarchy-- Robert W. Parmelee; Beaver as engineers: influences on biotic and abiotic characteristics of drainage basins-- Michael M. Pollock, Robert J. Naiman, Heather E. Erickson, Carol A. Johnston, John Pastor and Gilles Pinay; Atmospheric oxygen and the biosphere-- Heinrich D. Holland; Approaches: Linking species and ecosystems: organisms as ecosystem engineers-- John H. Lawton and Clive G. Jones; Top-level carnivores and ecosystem effects: questions and approaches-- James A. Estes; Food webs in soil: an interface between population and ecosystem ecology-- Jan Bengtsson, David Wei Zheng, Goran I. Agren and Tryggve Persson; Unifying ecological subdisciplines with ecosystem food webs-- Neo D. Martinez; Coupling the dynamics of species and materials-- William S. C.Gurney, Alex H. Ross and Niall Broekhuizen; Exploring aggregation in space and time-- Monica G. Turner and Robert V. O'Neill; Aggregation of species properties for biogeochemical modeling: empirical results-- David S. Schimel, V. B. Brown, K. A. Hibbard, C. P. Lund and S. Archer; Functional redundancy and process aggregation: linking ecosystems to species-- Edward B. Rastetter and Gaius R. Shaver; Species compensation and complementarity in ecosystem function-- Thomas M. Frost, Stephen R. Carpenter, Anthony R. Ives and Timothy K. Kratz; Elemental stoichiometry of species in ecosystems-- Robert W. Sterner; Species, nitrogen and grassland dynamics: the constraints of stuff-- David A. Wedin; Relationships between the energetics of species and large scale species richness-- Donald L. DeAngelis; Linking species and ecosystems: where's Darwin?-- Robert D. Holt; Ecological flow chains and ecological systems: concepts for linking species and ecosystem perspectives-- Moshe Shachak and Clive G. Jones; Context: The relevance of ecology: the societal context and disciplinary implications of linkages across levels of ecological organization-- Jane Lubchenco; Linking species and ecosystems through training of students-- Lawrence B. Slobodkin; Linking species and communities to ecosystem management: a perspective from the experimental lakes experience-- D. W. Schindler; Why link species conservation, environmental protection, and resource management?-- Jerry F. Franklin; References; Index.