Journal ArticleDOI
Plant water stress and its consequences for herbivorous insects: a new synthesis
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Both vote counting and meta-analysis found strong negative effects of water stress on the performance of sap-feeding insects at large and subguilds, respectively.Abstract:
Traditionally, herbivorous insects are thought to exhibit enhanced performance and outbreak dynamics on water-stressed host plants due to induced changes in plant physiology. Recent experimental studies, however, provide mixed support for this historical view. To test the plant-stress hypothesis (PSH), we employed two methods (the traditional vote-counting approach and meta-analysis) to assess published studies that investigated insect responses to experimentally induced water-deficit in plants. For insects, we examined how water deficit affects survivorship, fecundity, density, relative growth rate, and oviposition preference. Responses were analyzed by major feeding guild (sap-feeding insects and chewing insects) and for the subguilds of sap-feeders (phloem, mesophyll, and xylem feeders) and chewing insects (free-living chewers, borers, leaf miners, and gall-formers). Both vote counting and meta-analysis found strong negative effects of water stress on the performance of sap-feeding insects at large and...read more
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Book ChapterDOI
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References
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Journal ArticleDOI
Herbivory in relation to plant nitrogen content
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Journal ArticleDOI
Plant Responses to Water Stress
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Journal ArticleDOI
Intraspecific variation in body size and fecundity in insects: a general relationship
TL;DR: The common slope of the fecundity/size relationship is close to 1 and this indicates that female size is a principal constraint on insect potential FECundity.
Journal ArticleDOI
The Plant Vigor Hypothesis and Herbivore Attack
TL;DR: Four sources of evidence are used to support the Plant Vigor Hypothesis that many herbivore species feed preferentially on vigorous plants or plant modules, as opposed to the Plant Stresshypothesis arguing that stressed plants ae beneficial to herbivores.
Journal ArticleDOI
The abundance of invertebrate herbivores in relation to the availability of nitrogen in stressed food plants.
TL;DR: It has been postulated that when plants are stressed by certain changes in patterns of weather they become a better source of food for invertebrate herbivores because this stress causes an increase in the amount of nitrogen available in their tissues for young herbivore feeding on them.