caa a22 4500 38809737X CHVBK 20180307125307.0 cr unu---uuuuu 161130e199911 xx s 000 0 eng 10.1017/S0029665199001068 doi S0029665199001068 pii (NATIONALLICENCE)cambridge-10.1017/S0029665199001068 Assuaging nutritional complexity: a geometrical approach [Elektronische Daten] We have introduced a framework that enables the identification of the important elements in complex nutritional systems, and the quantification of the interactions among them. These interactions include those among the multiple constituents of the ingesta, as well as between behavioural (ingestive) and physiological (post-ingestive) components of nutritional homeostasis. The resulting descriptions provide a powerful means to generate and test hypotheses concerning the mechanisms, ecology and evolution of nutritional systems. We provide an overview of the key concepts involved in our scheme, and then introduce four examples in which the framework is used to develop and test hypotheses. In the first example we use comparative methods based on a data set of 117 insect species to test a prediction about the relationship between evolving an association with bacterial endosymbionts and the composition of the optimal diet. Second, using two species of locusts (a grass specialist and a generalist), we consider the relationship between an animal's diet breadth and the decision rules employed when feeding on foods containing suboptimal protein: carbohydrate values. Third, we introduce a mathematical model that predicts the dose-response properties of gustatory systems in the context of nutritional homeostasis. Finally, we consider the interaction between tannic acid and macronutrient balance in the diet of locusts. The Nutrition Society Nutrient balancing nationallicence Geometric models of nutrition nationallicence Insects nationallicence Feeding behaviour nationallicence Simpson Stephen J. Department of Zoology and University Museum of Natural History, University of Oxford, South Parks Road, Oxford OX1 3PS, UK Raubenheimer David Department of Zoology and University Museum of Natural History, University of Oxford, South Parks Road, Oxford OX1 3PS, UK Proceedings of the Nutrition Society Cambridge University Press 58/4(1999-11), 779-789 0029-6651 58:4<779 1999 58 PNS https://doi.org/10.1017/S0029665199001068 text/html Onlinezugriff via DOI 1 conference jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0029665199001068 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Simpson Stephen J. Department of Zoology and University Museum of Natural History, University of Oxford, South Parks Road, Oxford OX1 3PS, UK NATIONALLICENCE 700 1- Raubenheimer David Department of Zoology and University Museum of Natural History, University of Oxford, South Parks Road, Oxford OX1 3PS, UK NATIONALLICENCE 773 0- Proceedings of the Nutrition Society Cambridge University Press 58/4(1999-11), 779-789 0029-6651 58:4<779 1999 58 PNS CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge