...Myung Suk Rho; Kwang Pum Lee ABSTRACT Animals must acquire an ideal amount and balance of macronutrients to optimize their performance, health and fitness. The nutritional landscape provides an integrative framework for analysing how animal phenotypes are associated with multiple nutritional...

... would give us insight into the extent to which nutritional conditions early in life modulate adult physiology and fitness. Here, we manipulated the ratio of macronutrients (yeast-to-sugar ratio, Y:S) in the larval diet of the holometabolous fruit fly Bactrocera tryoni . We investigated the effects...

... parasitism, and measured feeding before and after immune challenge on diets varying in their macronutrient content. To evaluate the effects of diet on melanization, we quantified melanization of beads following feeding assays. Contrary to our prediction, we found that parasitized or injected caterpillars...

... that flies prioritize macronutrient regulation over excess water consumption. To determine the relative importance of yeast and sucrose, in a no-choice experiment, we provided flies with two microcapillary tubes: the first with one of the 28 diets varying in yeast and sucrose content and the other with only...

... ) 4 4 2006 © The Company of Biologists Limited 2006 2006 caterpillar diet breadth feeding generalist Heliothis insect herbivore macronutrient nutrient regulation protein:carbohydrate ratio self-selection specialist The majority of insect herbivores are host-plant...

...D. Raubenheimer; S. J. Simpson SUMMARY We examined correlates of nutrient balancing with dietary range by comparing diet selection and ingestive, post-ingestive and performance-related responses to macronutrient imbalance in two species of grasshopper. One of the two species, Locusta migratoria...