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E-book
Author Karasov, William H., 1953-

Title Physiological ecology : how animals process energy, nutrients, and toxins / William H. Karasov and Carlos Martínez del Rio
Published Princeton : Princeton University Press, ©2007
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Description 1 online resource (xiv, 741 pages) : illustrations
Contents ch. 4. Simple guts : the ecological biochemistry and physiology of catalytic digestion -- 4.1. Lots of guts, but only a few basic types -- 4.2. The gut as a bottleneck to energy flow -- 4.3. The gut in energy intake maximizers -- 4.4. Intermittent feeders -- 4.5. The gut in diet switchers -- 4.6. The evolutionary match between digestion, diets, and animal energetics -- 4.7. Summary : the interplay between digestive physiology and ecology -- ch. 5. Photosynthetic animals and gas-powered mussels : the physiological ecology of nutritional symbioses -- 5.1. A symbiotic world -- 5.2. A diversity of nutritional symbioses -- 5.3. Hot vents and cold seeps : chemolithotrophs of the deep sea -- 5.4. The importance of nitrogen in nutritional symbioses -- ch. 6. Digestive symbioses : how insect and vertebrate herbivores cope with low quality plant foods -- 6.1. Fermentation of cell wall materials -- 6.2. Microbial fermentation in insect guts -- 6.3. Terrestrial vertebrates -- 6.4. Herbivory and detritivory in fish
Preface -- Acknowledgments -- Section 1 : Overview -- ch. 1. Basic concepts : budgets, allometry, temperature, and the imprint of history -- 1.1. The input/output budget : a key conceptual framework -- 1.2. The importance of size : scaling of physiological and ecological traits -- 1.3. The importance of temperature -- 1.4. Using historical data in comparative studies -- Section 2 : Chemical ecology of food -- ch. 2. The chemistry and biology of food -- 2.1. Getting started ; first catch (store and prepare) the hare -- 2.2 Proximate nutrient analysis -- 2.3. Dietary fiber -- 2.4. Carbohydrates -- 2.5. Amino acids and proteins -- 2.6. Lipids -- 2.7. Vitamins -- 2.8. Minerals -- 2.9. Secondary metabolites -- 2.10. Words of encouragement -- Section 3 : Digestive ecology -- ch. 3. Food intake and utilization efficiency -- 3.1. Overview of section 3 : Why study digestion? -- 3.2. Digestive efficiency is inversely related to "fiber" content -- 3.3. Both digestion rate and digestive efficiency are key nutritional variables -- 3.4. Daily food intake : energy maximization or regulation?
Section 4 : The ecology of postabsorptive nutrient processing -- ch. 7. Postabsorptive processing of nutrients -- 7.1. Overview : The postabsorptive fate of absorbed materials -- 7.2. Controls over postabsorptive processing -- 7.3. Costs of digestive and postabsorptive processing -- 7.4. Feast and famine : the biochemistry of natural fasting and starvation -- 7.5. Biochemical indices of nutritional status and habitat quality -- ch. 8. Isotopic ecology -- 8.1. Basic principles -- 8.2. Mixing models -- 8.3. Isotopic signatures -- 8.4. The dynamics of isotopic incorporation -- 8.5. Stable isotopes and migration -- 8.6. Nitrogen isotopes -- 8.7. Concluding remarks and (yet again) a call for laboratory experiments -- ch. 9. How animals deal with poisons and pollutants -- 9.1. Overview : the postabsorptive fate of absorbed xenobiotics -- 9.2. Distribution of xenobiotics in the body -- 9.3. Biotransformation of absorbed xenobiotics -- 9.4. Elimination of xenobiotics and their metabolites -- 9.5. Costs of xenobiotic biotransformation and elimination -- 9.6. Modeling approaches can integrate the processes of absorption, distribution, and elimination (including biotransformation and excretion) -- 9.7. Models can predict bioaccumulation and biomagnification in ecosystems -- 9.8. Postingestional effects of xenobiotics on feeding behavior -- 9.9. Toxic effects of xenobiotics in wild animals -- 9.10. Toxicogenomics : new methodologies for the integrative study of exposure, postabsorptive processing, and toxicity in animals exposed to natural and manmade toxins
Section 5 : Limiting nutrients -- ch. 10. Ecological stoichiometry -- 10.1. Ecological stoichiometry : the power of elemental analysis -- 10.2. An ecological stoichiometry primer -- 10.3. Are energy and elements two independent currencies? -- ch. 11. Nitrogen and mineral requirements -- 11.1. Nitrogen requirements and limitation in ecology-- 11.2. Mineral requirements and limitation in ecology -- ch. 12. Water requirements and water flux -- 12.1. Water budgets, fluxes, and requirements -- 12.2. Avenues of water loss -- 12.3. The dietary requirement for water -- 12.4. Ingestion of xenobiotics can increase the dietary requirement for water -- 12.5. Is water ecologically limiting? -- 12.6. Testing the evolutionary match between environmental aridity and water relations -- Section 6 : Production in budgets of mass and energy -- ch. 13. Growth budgets of mass and energy -- 13.1. Overview of chapters 13 and 14 -- 13.2. Two approaches are used to evaluate costs of production -- 13.3. Energetics of growth-- 13.4. Rates of growth -- 13.5. Growth in relation to life history transitions -- ch. 14. Reproduction in budgets of mass and energy -- 1.41. Allocation to reproduction : trade-off with development and effects of body size -- 14.2. Approaches for measuring costs of reproduction -- 14.3. Material costs of reproduction -- 14.4. Nutritional control of reproduction -- 14.5. Putting energy and material costs of reproduction in perspective -- Index
Summary "Unlocking the puzzle of how animals behave and how they interact with their environments is impossible without understanding the physiological processes that determine their use of food resources. But long overdue is a user-friendly introduction to the subject that systematically bridges the gap between physiology and ecology. Ecologists - for whom such knowledge can help clarify the consequences of global climate change, the biodiversity crisis, and pollution - often find themselves wading through an unwieldy, technically top-heavy literature. Here, William Karasov and Carlos Martinez del Rio present the first accessible and authoritative one-volume overview of the physiological and biochemical principles that shape how animals procure energy and nutrients and free themselves of toxins - and how this relates to broader ecological phenomena."--Jacket
Bibliography Includes bibliographical references and index
Notes Print version record
Subject Animal ecophysiology.
Animal ecophysiology.
Animaux -- Écophysiologie.
Autökologie
SCIENCE / Life Sciences / Biochemistry
Tiere
Form Electronic book
Author Martínez del Rio, Carlos, 1956-
ISBN 0691213313
9780691213316