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Energy at the surface of the earth : an introduction to the energetics of ecosystems

General ecology and biosociology --- Bioenergetics. --- Ecology. --- Energy budget (Geophysics)

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Animal nutrition. --- Animal nutrition --- Bioenergetics --- Energy balance (Biology) --- Energy budget (Biology) --- Energy dynamics (Ecology) --- Energy utilization (Biology) --- Animals --- Domestic animals --- Livestock --- Nutrition --- Biochemistry --- Energy budget (Geophysics)

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Cellular life depends upon energy storage, transformation, utilization, and exchange in order to optimally function and to stay-off death. The over 200-year-old study of how cells transform biological fuels into usable energy, a process broadly known as bioenergetics, has produced celebrated traditions in explaining origins of life, metabolism, ecological adaptation, homeostasis, biosynthesis, aging, disease, and numerous other life processes. InTech's edited volume, Bioenergetics, brings together some of these traditions for readers through a collection of chapters written by international authorities. Novice and expert will find this book bridges scientific revolutions in organismic biology, membrane physiology, and molecular biology to advance the discipline of bioenergetics toward solving contemporary and future problems in metabolic diseases, life transitions and longevity, and performance optimization.

Bioenergetics. --- Biochemistry. --- Biological chemistry --- Chemical composition of organisms --- Organisms --- Physiological chemistry --- Biology --- Chemistry --- Medical sciences --- Energy balance (Biology) --- Energy budget (Biology) --- Energy dynamics (Ecology) --- Energy utilization (Biology) --- Biochemistry --- Energy budget (Geophysics) --- Composition

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Energy in Nature and Society is a systematic and exhaustive analysis of all the major energy sources, storages, flows, and conversions that have shaped the evolution of the biosphere and civilization. Vaclav Smil uses fundamental unifying metrics (most notably for power density and energy intensity) to provide an integrated framework for analyzing all segments of energetics (the study of energy flows and their transformations). The book explores not only planetary energetics (such as solar radiation and geomorphic processes) and bioenergetics (photosynthesis, for example) but also human energetics (such as metabolism and thermoregulation), tracing them from hunter-gatherer and agricultural societies through modern-day industrial civilization. Included are chapters on heterotrophic conversions, traditional agriculture, preindustrial complexification, fossil fuels, fossil-fueled civilization, the energetics of food, and the implications of energetics for the environment. The book concludes with an examination of general patterns, trends, and socioeconomic considerations of energy use today, looking at correlations between energy and value, energy and the economy, energy and quality of life, and energy futures. Throughout the book, Smil chooses to emphasize the complexities and peculiarities of the real world, and the counterintuitive outcomes of many of its processes, over abstract models. Energy in Nature and Society provides a unique, comprehensive, single-volume analysis and reference source on all important energy matters, from natural to industrial energy flows, from fuels to food, from the Earth's formation to possible energy futures, and can serve as a text for courses in energy studies, global ecology, earth systems science, biology, and chemistry. Vaclav Smil is Distinguished Professor at the University of Manitoba and the author of many books, including Energy at the Crossroads (2003), The Earth's Biosphere: Evolution, Dynamics, and Change (2002), and Energies: An Illustrated Guide to the Biosphere and Civilization (1998), all of which are published by The MIT Press.

General ecology and biosociology --- Relation between energy and economics --- #SBIB:316.334.5U34 --- Sociologie van stad en platteland: milieuproblematiek --- Bioenergetics --- Energy budget (Geophysics) --- Budget, Energy (Geophysics) --- Geophysics --- Energy balance (Biology) --- Energy budget (Biology) --- Energy dynamics (Ecology) --- Energy utilization (Biology) --- Biochemistry --- Bioenergetics.

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Along with reproduction, balancing energy expenditure with the limits of resource acquisition is essential for both a species and a population to survive. But energy is a limited resource, as we know well, so birds and mammals-the most energy-intensive fauna on the planet-must reduce energy expenditures to maintain this balance, some taking small steps, and others extreme measures. Here Brian K. McNab draws on his over sixty years in the field to provide a comprehensive account of the energetics of birds and mammals, one fully integrated with their natural history. McNab begins with an overview of thermal rates-much of our own energy is spent maintaining our 98.6?F temperature-and explains how the basal rate of metabolism drives energy use, especially in extreme environments. He then explores those variables that interact with the basal rate of metabolism, like body size and scale and environments, highlighting their influence on behavior, distribution, and even reproductive output. Successive chapters take up energy and population dynamics and evolution. A critical central theme that runs through the book is how the energetic needs of birds and mammals come up against rapid environmental change and how this is hastening the pace of extinction.

Warm-blooded animals --- Bioenergetics. --- Body temperature --- Basal metabolism. --- BMR --- Energy metabolism --- Metabolism --- Regulation of body temperature --- Temperature adaptation --- Thermoregulation --- Biological control systems --- Energy balance (Biology) --- Energy budget (Biology) --- Energy dynamics (Ecology) --- Energy utilization (Biology) --- Biochemistry --- Energy budget (Geophysics) --- Endothermic animals --- Endotherms --- Homeothermic animals --- Homeotherms --- Homoiothermal animals --- Animals --- Ecology. --- Evolution. --- Regulation.