Journal ArticleDOI
Plant water stress and its consequences for herbivorous insects: a new synthesis
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TLDR
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
Citations
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Journal ArticleDOI
Does phylogeny matter? Assessing the impact of phylogenetic information in ecological meta‐analysis
Scott Chamberlain,Stephen M. Hovick,Christopher J. Dibble,Nick L. Rasmussen,Benjamin G. Van Allen,Brian S. Maitner,Jeffrey R. Ahern,Lukas Bell-Dereske,Christopher L. Roy,Maria M. Meza-Lopez,Juli Carrillo,Evan Siemann,Marc J. Lajeunesse,Kenneth D. Whitney +13 more
TL;DR: It is concluded that incorporating phylogenetic information in ecological meta-analyses is important, and practical recommendations for doing so are provided, and decreases in pooled effect size magnitudes were associated with larger phylogenies and those with stronger phylogenetic signal.
Journal ArticleDOI
Volatile organic compound emissions from Alnus glutinosa under interacting drought and herbivory stresses.
TL;DR: An important priming effect of drought is demonstrated, suggesting that plants under combined drought/herbivory stress are more resistant to herbivores.
Journal ArticleDOI
Urban warming trumps natural enemy regulation of herbivorous pests
Adam G. Dale,Steven D. Frank +1 more
TL;DR: The finding that increasing temperature significantly increases scale insect fecundity and contributes to greater population increase supports predictions that urban and natural forests will face greater herbivory in the future, and suggests that a primary cause could be direct, positive effects of warming on herbivore fitness rather than altered trophic interactions.
Journal ArticleDOI
The role of abscisic acid and water stress in root herbivore-induced leaf resistance.
Matthias Erb,Tobias G. Köllner,Jörg Degenhardt,Claudia Zwahlen,Bruce E. Hibbard,Ted C. J. Turlings +5 more
TL;DR: It is concluded that the induced leaf resistance after root feeding is the result of hydraulic changes, which reduce the quality of the leaves for chewing herbivores, which calls into question whether root-herbivore induced leaf-resistance is an evolved response.
References
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Herbivory in relation to plant nitrogen content
TL;DR: The evidence that N is scarce and perhaps a limiting nutrient for many herbivores, and that in response to this selection pressure, many Herbivores have evolved specific behavioral, morphological, physiological, and other adaptations to cope with and uti lize the ambient N levels of their normal haunts is examined.
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Plant Responses to Water Stress
TL;DR: The role of turgor and sensitivity to stress, as well as growth adjustments during and after stress, are studied.
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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.
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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.
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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.