Journal ArticleDOI
Plant water stress and its consequences for herbivorous insects: a new synthesis
Reads0
Chats0
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
More filters
Journal ArticleDOI
An insect ecosystem engineer alleviates drought stress in plants without increasing plant susceptibility to an above-ground herbivore
Scott N. Johnson,Goran Lopaticki,Kirk L. Barnett,Sarah L. Facey,Jeff R. Powell,Susan E. Hartley +5 more
TL;DR: Dung beetles enhanced plant growth and nitrogen content in plants experiencing drought, and their effects did not change plant suitability to an above-ground herbivore, pointing to potential beneficial role for insect ecosystem engineers in climate change adaptation and crop protection.
Journal ArticleDOI
Plant Water Stress, Leaf Temperature, and Spider Mite (Acari: Tetranychidae) Outbreaks in California Vineyards
TL;DR: The results help to explain why outbreaks of T. pacificus occur in warmer or water-stressed vineyards, whereas E. willamettei develops higher populations in cooler or well-irrigated vineyards and suggest that regulated deficit irrigation should be implemented with caution.
Journal ArticleDOI
Drought stress and leaf herbivory affect root terpenoid concentrations and growth of Tanacetum vulgare.
Sandra Kleine,Caroline Müller +1 more
TL;DR: The present results offer new insights into the above- and belowground organ-specific responses of plants and highlight the importance of roots in response to various environmental challenges.
Journal ArticleDOI
Altered precipitation impacts on above- and below-ground grassland invertebrates: summer drought leads to outbreaks in spring.
Marcel D. Torode,Marcel D. Torode,Kirk L. Barnett,Sarah L. Facey,Uffe N. Nielsen,Sally A. Power,Scott N. Johnson +6 more
TL;DR: It is predicted that shifts in rainfall patterns, especially summer drought, will likely have large, but probably short-term, impacts on grassland invertebrate communities, and sucking herbivores show sensitivity to precipitation changes, which have the potential to cascade through the food chain and affect higher trophic levels.
Journal ArticleDOI
Nitrogen and water limitations in tomato plants trigger negative bottom-up effects on the omnivorous predator Macrolophus pygmaeus
Peng Han,Philippe Bearez,Stéphane Adamowicz,Anne-Violette Lavoir,Anne-Violette Lavoir,Edwige Amiens-Desneux,Nicolas Desneux +6 more
TL;DR: The negative bottom-up effect of nitrogen and water limitations (in tomato plants) toward M.pygmaeus may be detrimental for mirid predator-based IPM programs in tomato crops.
References
More filters
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.
Journal ArticleDOI
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.
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.