Scheid, Barbara E.

[["dc.bibliographiccitation.firstpage","173"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Agricultural and Forest Entomology"],["dc.bibliographiccitation.lastpage","179"],["dc.bibliographiccitation.volume","13"],["dc.contributor.author","Scheid, Barbara E."],["dc.contributor.author","Thies, Carsten"],["dc.contributor.author","Tscharntke, Teja"],["dc.date.accessioned","2017-09-07T11:53:54Z"],["dc.date.available","2017-09-07T11:53:54Z"],["dc.date.issued","2011"],["dc.identifier.doi","10.1111/j.1461-9563.2010.00516.x"],["dc.identifier.gro","3150017"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6738"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.relation.issn","1461-9555"],["dc.title","Enhancing rape pollen beetle parasitism within sown flower fields along a landscape complexity gradient"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1106"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Journal of Applied Ecology"],["dc.bibliographiccitation.lastpage","1114"],["dc.bibliographiccitation.volume","46"],["dc.contributor.author","Haenke, Sebastian"],["dc.contributor.author","Scheid, Barbara"],["dc.contributor.author","Schaefer, Matthias"],["dc.contributor.author","Tscharntke, Teja"],["dc.contributor.author","Thies, Carsten"],["dc.date.accessioned","2017-09-07T11:54:37Z"],["dc.date.available","2017-09-07T11:54:37Z"],["dc.date.issued","2009"],["dc.description.abstract","1. The structural complexity of agricultural landscapes influences the local biodiversity and associatedecosystem services. Hence, developing effective biodiversity management requires a betterunderstanding of the relative importance of local and landscape changes, especially for functionallyimportant organisms such as hoverflies benefiting from flowering plants.2. We examined hoverfly (Diptera: Syrphidae) communities in broad and narrow sown flowerstrips, in naturally developed grassy strips and in wheat fields (as a control). We also investigatedthe effects of these four habitat types on syrphid occurrence in the adjacent wheat fields.3. The relative influence of local vs. landscape effects was tested by selecting study sites along agradient of structural complexity from simple landscapes (100% arable land) to complex landscapes(up to 70% semi-natural habitats such as fallows, field margins, hedges and grassland).Landscape complexity was assessed within landscape sectors of 0Æ5–4Æ0 km radius around strips.4. Syrphid density and in particular, the density of aphidophagous species, was higher in narrow andbroad sown flower strips compared to grassy strips and wheat–wheat boundary controls at the milkripeningstage of the wheat. In addition, species richness of aphidophagous syrphids within wheatfields adjacent to broad sown flower strips was higher at the wheat peak-ripening stage. This indicatesa spillover between habitats and a positive effect of these sown flower strips on potential biocontrol ofcereal aphids. Flower densities and syrphid diversity and density, respectively, were closely related.5. Species richness and abundance in the sown flower strips increased as the proportion of arableland in the surrounding landscape increased, suggesting that within structurally simple landscapes(at 0Æ5–1 km radius around the sites) syrphid flies concentrated on the most rewarding resourceswithin the sown flower strips. Sown flower strips were more effective at increasing syrphid speciesrichness and abundance in simple landscapes, presumably because the creation of flower resourcesmade the greatest difference in such homogeneous, intensively managed arable landscapes.6. Synthesis and applications. Agri-environment schemes should take the surrounding landscapecharacteristics into account when considering using sown flower strips to enhance syrphid densityand diversity, and their biocontrol function, in arable landscapes. Creating locally such flower stripsis more effective in simple landscapes containing a high proportion of arable land, while in complexlandscapes, keeping the overall diversity is important."],["dc.identifier.doi","10.1111/j.1365-2664.2009.01685.x"],["dc.identifier.gro","3150062"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6789"],["dc.language.iso","en"],["dc.notes.status","public"],["dc.relation.issn","0021-8901"],["dc.subject","agricultural intensification; biocontrol; concentration effects; flower strips; landscape complexity; semi-natural habitats; syrphid"],["dc.title","Increasing syrphid fly diversity and density in sown flower strips within simple vs. complex landscapes"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]