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
Citations
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Urbanization-driven climate change increases invertebrate lipid demand, relative to protein—A response to dehydration
Journal ArticleDOI
OUP accepted manuscript
TL;DR: In this article , the authors used a previously characterized plant-aphid system comprising a susceptible variety of barley, a wild relative of barley with partial aphid resistance, and the bird cherry-oat aphid to examine the drought-plantaphid relationship.
Dissertation
Global change and predator-prey interactions on a woody perennial
TL;DR: Reduced resistance to aphid herbivory demonstrated here mirrors previous studies, highlighting the future importance of natural enemies to control aphid abundance in future climates.
Journal ArticleDOI
Climatic displacement exacerbates the negative impact of drought on plant performance and associated arthropod abundance.
TL;DR: In this article, the effects of two axes of climate change, namely, climatic displacement and drought, on the shrub Artemisia californica and its arthropods were characterized.
Journal ArticleDOI
The value of targeted reforestations for local insect diversity: a case study from the Ecuadorian Andes
Marc-Oliver Adams,Konrad Fiedler +1 more
TL;DR: It is suggested that microclimatic effects of surrounding vegetation may affect species richness, and young reforestations maintain less diverse insect communities compared to natural forest but still harbor a considerable number of species, particularly if canopy cover is present.
References
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Journal ArticleDOI
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.
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.