Journal ArticleDOI
The effect of simulated acid rain on performance of the aphid Euceraphis betulae (Koch) on silver birch
Seppo Neuvonen,M. Lindgren +1 more
TLDR
The reproduction of aphids on acid-treated birches was enhanced when precipitation was below long term average, suggesting an interaction between the stress caused by acid treatment and dry periods.Abstract:
The effect of artificial acid rain on the reproduction and survival of the aphid Euceraphis betulae on silver birch was studied in Turku, southern Finland. Eight bioassays were done during 1984-1986. In four of the bioassays the aphids produced 40% to over 100% more progeny on birches watered with dilute sulphuric acid (pH 3.5) than on control trees. In four other cases the performance of aphids did not differ between the treatments. An index of aphid reproduction pooled over the whole study was significantly higher on acid-treated than on control birches. The reproduction of aphids on acid-treated birches was enhanced when precipitation was below long term average, suggesting an interaction between the stress caused by acid treatment and dry periods.read more
Citations
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Journal ArticleDOI
Insect performance on experimentally stressed woody plants: a meta-analysis.
TL;DR: Overall, plant stress had no significant effect on insect growth rate, fecundity, survival, or colonization density, but great variation was found in the magnitude and direction of insect responses among studies, most of which was related to insect feeding guild.
Journal ArticleDOI
Pollution‐related variation in food supply and breeding success in two hole‐nesting passerines
TL;DR: The results indicate that the reduced breeding performance of birds in the polluted area may be due to various reasons; one species may respond directly to toxicity, and the other species to reduced food supply.
Journal ArticleDOI
Can forest trees compensate for stress-generated growth losses by induced production of volatile compounds?
TL;DR: Recent advances in the understanding of stress-induced VOC emissions from trees, with special focus on Populus spp.
Journal ArticleDOI
Microbial impacts on plant-herbivore interactions: the indirect effects of a birch pathogen on a birch aphid.
TL;DR: Changes in leaf chemistry were associated with fungal infection with inoculated leaves containing higher concentrations of free-amino acids, which may reflect a plant-initiated response to fungal attack, and are proposed as the mechanistic basis for the positive interaction between the fungus and aphid.
Journal ArticleDOI
Effects of pollutants on bottom-up and top-down processes in insect–plant interactions
Casey D. Butler,John T. Trumble +1 more
TL;DR: A synthesis of available data by pollution type and herbivore guild is provided, and future research to address the impact of pollutants acting on these forces has not been examined is suggested.
References
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Journal ArticleDOI
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TL;DR: Suggestions are offered to statisticians and editors of ecological journals as to how ecologists' under- standing of experimental design and statistics might be improved.
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.
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Effects of the Accumulation of Air Pollutants in Forest Ecosystems.
Journal ArticleDOI
Effects of Air Pollutants on Insect Populations
Book ChapterDOI
A Concept of Forest Ecosystem Stability and of Acid Deposition as Driving Force for Destabilization
TL;DR: In this paper, a theory is proposed which explains the acidification and alcalinization of soils, respectively, as consequence of the discoupling of the ion cycle in the ecosystem.