Abstract

An understanding of insect ecology has been hampered by an inadequate knowledge of nutritional physiology. The effects of food quality upon physi­ ology and behavior (24, 102, 185, 285) and at the population and ecosystem levels (107, 209) are too often neglected. Nutritional ecology is central to proper interpretations of life history phenomena (e.g. manner of feeding, habitat selection, defense, and reproduction) both in ecological and evolu­ tionary time. Careful consideration of present and future information on this topic can lead to better predictive capabilities in both coevolutionary theory and pest management. In this review we assess the importance of food quality relative to other environmental factors and organism adaptations that influence post-inges­ tive food utilization and growth performance of immature arthropods. Reviewed elsewhere are pre-ingestive factors affecting food choice and con­ sumption (52, 73, 142, 154), nutritional requirements (67, 129, 226, 252), and the physiology of food consumption and utilization (19, 130, 270).

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