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Drought impacts on above-belowground interactions: do effects differ between annual and perennial host species?

Staley, J. T., Mortimer, S. R. and Morecroft, M. D. (2008) Drought impacts on above-belowground interactions: do effects differ between annual and perennial host species? Basic and Applied Ecology, 9 (6). pp. 673-681. ISSN 1439-1791

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To link to this article DOI: 10.1016/j.baae.2007.10.006

Abstract/Summary

Root herbivores can have a positive or negative effect on the abundance and/or performance of foliar phytophages. In addition, abiotic factors such as drought can either strengthen or weaken this effect, depending on the system under investigation. One explanation for these varying responses lies in differences in the physiological response of host plants to drought and root herbivores. Here, the impacts of root phytophages on a leaf-mining species feeding on annual and perennial plant species (four Sonchus species) were compared. The responses of plants and leaf-miners to dtought and root herbivore treatments were not related to whether the host plant was an annual or perennial. However, where root feeders did affect foliar phytophage performance, this occurred only under a drought treatment, demonstrating the potential for climatic change to alter the outcome of plant-mediated interactions. (c) 2007 Gessellschaft fur Okologie. Published by Elsevier GmbH. All rights reserved.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Agriculture, Policy and Development
Interdisciplinary centres and themes > Soil Research Centre
ID Code:9209
Uncontrolled Keywords:Agriotes lineatus, Chromatomyia syngenesiae, Climate change, Leaf-miner, Plant-mediated interaction, Sonchus, Wireworm, PLANT-MEDIATED INTERACTIONS, INSECT HERBIVORES, WATER-STRESS, ROOT, DEFENSE, PERFORMANCE, COMPETITION, RESISTANCE, ABUNDANCE, NITROGEN

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