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dc.contributor.authorBohm, Stefan
dc.contributor.authorWells, Konstans
dc.contributor.authorKalko, Elisabeth K.V.
dc.date.accessioned2018-01-19T04:53:17Z
dc.date.available2018-01-19T04:53:17Z
dc.date.issued2011
dc.identifier.issn1932-6203
dc.identifier.doi10.1371/journal.pone.0017857
dc.identifier.urihttp://hdl.handle.net/10072/173435
dc.description.abstractThe intensive foraging of insectivorous birds and bats is well known to reduce the density of arboreal herbivorous arthropods but quantification of collateral leaf damage remains limited for temperate forest canopies. We conducted exclusion experiments with nets in the crowns of young and mature oaks, Quercus robur, in south and central Germany to investigate the extent to which aerial vertebrates reduce herbivory through predation. We repeatedly estimated leaf damage throughout the vegetation period. Exclusion of birds and bats led to a distinct increase in arthropod herbivory, emphasizing the prominent role of vertebrate predators in controlling arthropods. Leaf damage (e.g., number of holes) differed strongly between sites and was 59% higher in south Germany, where species richness of vertebrate predators and relative oak density were lower compared with our other study site in central Germany. The effects of bird and bat exclusion on herbivory were 19% greater on young than on mature trees in south Germany. Our results support previous studies that have demonstrated clear effects of insectivorous vertebrates on leaf damage through the control of herbivorous arthropods. Moreover, our comparative approach on quantification of leaf damage highlights the importance of local attributes such as tree age, forest composition and species richness of vertebrate predators for control of arthropod herbivory.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherPublic Library of Sciences
dc.relation.ispartofpagefrome17857-1
dc.relation.ispartofpagetoe17857-8
dc.relation.ispartofissue4
dc.relation.ispartofjournalPLoS One
dc.relation.ispartofvolume6
dc.subject.fieldofresearchBehavioural Ecology
dc.subject.fieldofresearchcode060201
dc.titleTop-down control of herbivory by birds and bats in the canopy of temperate broad-leaved oaks (Quercus robur)
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dcterms.licensehttps://creativecommons.org/licenses/by/4.0/
dc.description.versionVersion of Record (VoR)
gro.rights.copyright© 2011 Bo¨hm et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
gro.hasfulltextFull Text
gro.griffith.authorWells, Konstans


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