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Multi-factor climate change effects on insect herbivore performance

dc.contributor.authorScherber, Christoph
dc.contributor.authorGladbach, David J.
dc.contributor.authorStevnbak, Karen
dc.contributor.authorKarsten, Rune Juelsborg
dc.contributor.authorSchmidt, Inger Kappel
dc.contributor.authorMichelsen, Anders
dc.contributor.authorAlbert, Kristian Rost
dc.contributor.authorLarsen, Klaus Steenberg
dc.contributor.authorMikkelsen, Teis Nørgaard
dc.contributor.authorBeier, Claus
dc.contributor.authorChristensen, Søren
dc.date.accessioned2013-07-01T14:09:24Z
dc.date.available2013-07-01T14:09:24Z
dc.date.issued2013-04-15
dc.relation.ISSN2045-7758
dc.identifier.urihttp://resolver.sub.uni-goettingen.de/purl?gs-1/9127
dc.description.abstractThe impact of climate change on herbivorous insects can have far-reaching consequences for ecosystem processes. However, experiments investigating the combined effects of multiple climate change drivers on herbivorous insects are scarce. We independently manipulated three climate change drivers (CO2, warming, drought) in a Danish heathland ecosystem. The experiment was established in 2005 as a full factorial split-plot with 6 blocks 9 2 levels of CO2 9 2 levels of warming 9 2 levels of drought = 48 plots. In 2008, we exposed 432 larvae (n = 9 per plot) of the heather beetle (Lochmaea suturalis THOMSON), an important herbivore on heather, to ambient versus elevated drought, temperature, and CO2 (plus all combinations) for 5 weeks. Larval weight and survival were highest under ambient conditions and decreased significantly with the number of climate change drivers. Weight was lowest under the drought treatment, and there was a three-way interaction between time, CO2, and drought. Survival was lowest when drought, warming, and elevated CO2 were combined. Effects of climate change drivers depended on other co-acting factors and were mediated by changes in plant secondary compounds, nitrogen, and water content. Overall, drought was the most important factor for this insect herbivore. Our study shows that weight and survival of insect herbivores may decline under future climate. The complexity of insect herbivore responses increases with the number of combined climate change drivers.
dc.description.sponsorshipOpen-Access-Publikationsfonds 2013
dc.format.extent12
dc.language.isoeng
dc.rightsopenAccess
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/
dc.subjectChrysomelidae; climaite; condensed tannins; FACE experiment; multiple climate change drivers; multitrophic interactions; plant secondary metabolites.
dc.titleMulti-factor climate change effects on insect herbivore performance
dc.typejournalArticle
dc.identifier.doi10.1002/ece3.564
dc.type.versionpublishedVersion
dc.identifier.fs601285
dc.bibliographicCitation.volume3
dc.bibliographicCitation.issue6
dc.bibliographicCitation.firstPage1449
dc.bibliographicCitation.lastPage1460
dc.type.subtypejournalArticle
dc.identifier.pmid23789058
dc.description.statuspeerReviewed
dc.bibliographicCitation.journalEcology and Evolution


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