Age-specific optimal diets and optimal foraging tactics: a life-historic approach.
By linking optimal foraging theory and optimal life history theory, we demonstrate that optimal diets, in general, may depend on the individual's age even when everything else remains the same. Older individuals (i.e., individuals with lower reproductive values) are predicted to have diets composed of highly nutritious food types that are possibly dangerous to pursue.
Engen
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Department of Mathematics and Statistics, University of Trondheim, Dragvoll, Norway.
Stenseth
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NC
D000375:Aging / Q000502:physiology*; D000821:Animal Feed / Q000600:supply & distribution; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D000835:Animals, Wild / Q000502:physiology; D002755:Choice Behavior / Q000502:physiology; D004032:Diet; D004463:Ecology; D004526:Efficiency / Q000502:physiology; D005247:Feeding Behavior / Q000502:physiology*; D016014:Linear Models; D008136:Longevity / Q000502:physiology; D012737:Sex Factors