Leseprobe
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Food Webs (MPB-50)
Kevin S. McCann
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Naturwissenschaften, Medizin, Informatik, Technik / ÷kologie
Beschreibung
Human impacts are dramatically altering our natural ecosystems but the exact repercussions on ecological sustainability and function remain unclear. As a result, food web theory has experienced a proliferation of research seeking to address these critical areas. Arguing that the various recent and classical food web theories can be looked at collectively and in a highly consistent and testable way, Food Webs synthesizes and reconciles modern and classical perspectives into a general unified theory.
Kevin McCann brings together outcomes from population-, community-, and ecosystem-level approaches under the common currency of energy or material fluxes. He shows that these approaches--often studied in isolation--all have the same general implications in terms of population dynamic stability. Specifically, increased fluxes of energy or material tend to destabilize populations, communities, and whole ecosystems. With this understanding, stabilizing structures at different levels of the ecological hierarchy can be identified and any population-, community-, or ecosystem-level structures that mute energy or material flow also stabilize systems dynamics. McCann uses this powerful general framework to discuss the effects of human impact on the stability and sustainability of ecological systems, and he demonstrates that there is clear empirical evidence that the structures supporting ecological systems have been dangerously eroded.
Uniting the latest research on food webs with classical theories, this book will be a standard source in the understanding of natural food web functions.
Kundenbewertungen
Food web, Functional response, Equation, Estimation, Hopf bifurcation, Addition, Recycling, Omnivore, Mathematical logic, Sprat, Biomass (ecology), Organism, Intraguild predation, Instability, Density dependence, Lotka–Volterra equations, Local extinction, Population ecology, Ecological network, Nutrient, Ecosystem model, Complex dynamics, Generalist and specialist species, Linearization, Biological interaction, Population model, Zooplankton, Attractor, Weak interaction, Herbivore, Trade-off, Isocline, Habitat fragmentation, Bifurcation theory, Food chain, Population cycle, Detritus, Meta-analysis, Eigenvalues and eigenvectors, Apex predator, Ecosystem, Chemostat, Ecological pyramid, Jacobian matrix and determinant, Soil, Systems theory, Geometry, Paradox of enrichment, Quantity, Foraging, Trophic level, Parameter space, Phase space, Population dynamics, Logistic function, Predation, Dynamical system, Empirical evidence, Coefficient of variation, Limit cycle, Monograph, Ecology, Maxima and minima, Spatial scale, Prediction, Subsidy, Lake trout, Parameter, Time series, Carrying capacity