Comparative Physiology of Fasting, Starvation, and Food by Marshall D. McCue (auth.), Marshall D. McCue (eds.)

By Marshall D. McCue (auth.), Marshall D. McCue (eds.)

All animals face the potential for nutrients dilemma and eventually starvation-induced mortality. This ebook summarizes state-of-the-art of hunger biology from the ecological reasons of nutrients dilemma to the physiological and evolutionary effects of lengthy fasting. it's written for an viewers with an knowing of common ideas in animal body structure, but deals a degree of research and interpretation that would have interaction professional scientists. each one bankruptcy is written by means of energetic researchers within the box of comparative body structure and attracts at the basic literature of hunger either in nature and the laboratory. The chapters are prepared between large taxonomic different types, similar to protists, arthropods, fishes, reptiles, birds, and flying, aquatic, and terrestrial mammals together with people; rather well-studied animal types, e.g. endotherms are additional geared up through experimental techniques, equivalent to analyses of blood metabolites, reliable isotopes, thermobiology, and modeling of physique composition.

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J Comp Physiol 176 B(5):441-452 Powell-Tuck J (2007) Nutritional interventions in critical illness. Proc Nutr Soc 66(1):16–24 Price ER (2010) Dietary lipid composition and avian migratory flight performance: development of a theoretical framework for avian fat storage. Comp Biochem Physiol A Mol Integr Physiol 157(4):297–309 Price ER, Guglielmo CG (2009) The effect of muscle phospholipid fatty acid composition on exercise performance: a direct test in the migratory white-throated sparrow (Zonotrichia albicollis).

Two parameters describe the shape of a numerical response curve (Fig. 1). First, the population response to high resource levels is defined by rmax, the maximum population growth rate. This term defines the maximum rate of population increase when the animals are not resource limited. Second, the response to low resource levels is defined by R*, the threshold resource abundance. R* is the minimum resource abundance necessary 3 Starvation in Rotifers: Physiology in an Ecological Context 27 to obtain a positive population growth rate.

In a given experiment, a high Dr means that food abundance, quality, or both are low, while a low Dr means that the existing mixture of phytoplankton in the lake is sufficient to nearly saturate the rotifer’s numerical response. Many food supplementation experiments have been conducted (Cordova et al. 2001, merriman and Kirk 2000, gonzalez and Frost 1992 see also McCue et al. Chap. 8), and from these we can arrive at some generalizations about the food environment experienced by herbivorous planktonic rotifers.

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