Thies, Carsten

[["dc.bibliographiccitation.firstpage","2946"],["dc.bibliographiccitation.issue","1720"],["dc.bibliographiccitation.journal","Proceedings of the Royal Society B: Biological Sciences"],["dc.bibliographiccitation.lastpage","2953"],["dc.bibliographiccitation.volume","278"],["dc.contributor.author","Gagic, Vesna"],["dc.contributor.author","Tscharntke, Teja"],["dc.contributor.author","Dormann, Carsten F."],["dc.contributor.author","Gruber, Bernd"],["dc.contributor.author","Wilstermann, A."],["dc.contributor.author","Thies, Carsten"],["dc.date.accessioned","2017-09-07T11:50:48Z"],["dc.date.available","2017-09-07T11:50:48Z"],["dc.date.issued","2011"],["dc.identifier.doi","10.1098/rspb.2010.2645"],["dc.identifier.gro","3149922"],["dc.identifier.pmid","21325327"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6633"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.relation.issn","0962-8452"],["dc.title","Food web structure and biocontrol in a four-trophic level system across a landscape complexity gradient"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","41"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Pedobiologia"],["dc.bibliographiccitation.lastpage","48"],["dc.bibliographiccitation.volume","53"],["dc.contributor.author","von Berg, Karsten"],["dc.contributor.author","Thies, Carsten"],["dc.contributor.author","Tscharntke, Teja"],["dc.contributor.author","Scheu, Stefan"],["dc.date.accessioned","2017-09-07T11:54:01Z"],["dc.date.available","2017-09-07T11:54:01Z"],["dc.date.issued","2009"],["dc.identifier.doi","10.1016/j.pedobi.2009.03.001"],["dc.identifier.gro","3150055"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6780"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.relation.issn","0031-4056"],["dc.title","Cereal aphid control by generalist predators in presence of belowground alternative prey: Complementary predation as affected by prey density"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","204"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Biological Control"],["dc.bibliographiccitation.lastpage","213"],["dc.bibliographiccitation.volume","53"],["dc.contributor.author","Vollhardt, Ines M. G."],["dc.contributor.author","Bianchi, Felix J. J. A."],["dc.contributor.author","Wäckers, Felix L."],["dc.contributor.author","Thies, Carsten"],["dc.contributor.author","Tscharntke, Teja"],["dc.date.accessioned","2017-09-07T11:53:56Z"],["dc.date.available","2017-09-07T11:53:56Z"],["dc.date.issued","2010"],["dc.description.abstract","The potential impact of nectar availability for biological pest control is of increasing relevance due to the disappearance of non-crop plants in intensified agricultural landscapes. However, little is known about how floral resources and their spatial distribution in and around crop fields influence cereal aphid parasitoid (Hymenoptera, Aphidiidae) survival and population dynamics. Cereal aphid parasitoids may be less dependent on flowers as they can use honeydew from their aphid hosts as an alternative food resource. However, honeydew appears to be less suitable as a food source for parasitoids when compared to nectar. Here the effects of flower distribution (nectar), aphid abundance (honeydew quantity) and honeydew quality on parasitoid life history parameters were explored using a spatially explicit, individual-based simulation model. In addition, effects of the availability of floral resources in field margins on parasitism levels in winter wheat were investigated in a field study. In the simulation study three flower distributions were compared: (i) flowers restricted to the field margin (most common in agricultural landscapes) or (ii) flowers in strips within the crop, and (iii) random flower distribution in the field. Simulations suggest that nectar feeding increases parasitoid longevity and parasitism at low aphid densities, but only in fields with randomly distributed flowers. In contrast, the spatial distribution of flowers did not affect the parasitoid longevity and parasitism rate at high aphid densities, where parasitoid feeding was restricted to the abundant honeydew resources. In simulations, parasitoid survival and the number of aphids parasitized were also affected by the nutritional quality of the honeydew, with low quality honeydew having a less positive effect on parasitoid longevity and parasitism rate. The field study did not indicate evidence of a significant relationship between flower cover in field margins and parasitism rates in wheat near the margins. This finding is compatible with results from simulations and suggests that honeydew feeding is more prevalent in cereal aphid parasitoids than nectar feeding. In conclusion, nectar may be an important factor for the potential biocontrol success of cereal aphid parasitoids, but most likely only at low aphid densities and especially when flowers are broadly distributed in the field."],["dc.identifier.doi","10.1016/j.biocontrol.2009.12.011"],["dc.identifier.gro","3150030"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6752"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.relation.issn","1049-9644"],["dc.subject","Parasitoids; Winter wheat; Biological control; Feeding; Sugar; Food ecology; Model"],["dc.title","Spatial distribution of flower vs. honeydew resources in cereal fields may affect aphid parasitism"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1583"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Ecology"],["dc.bibliographiccitation.lastpage","1590"],["dc.bibliographiccitation.volume","98"],["dc.contributor.author","Grass, Ingo"],["dc.contributor.author","Lehmann, Katrin"],["dc.contributor.author","Thies, Carsten"],["dc.contributor.author","Tscharntke, Teja"],["dc.date.accessioned","2017-09-07T11:50:04Z"],["dc.date.available","2017-09-07T11:50:04Z"],["dc.date.issued","2017"],["dc.identifier.doi","10.1002/ecy.1814"],["dc.identifier.gro","3149842"],["dc.identifier.pmid","28316079"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6545"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.relation.issn","0012-9658"],["dc.title","Insectivorous birds disrupt biological control of cereal aphids"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","612"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","Forests"],["dc.bibliographiccitation.volume","9"],["dc.contributor.author","Grüning, Maren"],["dc.contributor.author","Germeshausen, Franziska"],["dc.contributor.author","Thies, Carsten"],["dc.contributor.author","l.-M.-Arnold, Anne"],["dc.date.accessioned","2019-07-09T11:49:44Z"],["dc.date.available","2019-07-09T11:49:44Z"],["dc.date.issued","2018"],["dc.description.abstract","Forest soils are major sinks of terrestrial carbon, but this function may be threatened by mass outbreak events of forest pests. Here, we measured soil CO2-C and N2O-N fluxes from a Scots pine (Pinus sylvestris L.) forest that was heavily infested by the nun moth (Lymantria monacha L.) and an adjacent noninfested (control) forest site during one year. In the infested forest, net emissions of CO2-C were higher during main defoliation, summer and autumn, while indications of increased N2O-N emissions were found at one sampling date. On basis of this, a microcosm incubation experiment with different organic matter treatments was conducted. Soil treatments with needle litter, insect feces plus needle litter, and insect feces showed 3.7-, 10.6-, and 13.5-fold higher CO2-C emissions while N2O-N of the insect feces plus needle litter, and insect feces treatment was 8.9-, and 10.4-fold higher compared with soil treatments without added organic matter (control). Hence, the defoliation in combination with high inputs of organic matter during insect outbreaks distinctly accelerate decomposition processes in pine forest soils, which in turn alters forests nutrient cycling and the functioning of forests as carbon sinks."],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft"],["dc.identifier.doi","10.3390/f9100612"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15753"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/59616"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.publisher","MDPI"],["dc.relation.eissn","1999-4907"],["dc.rights","CC BY 4.0"],["dc.rights.uri","http://creativecommons.org/licenses/by/4.0/"],["dc.subject.ddc","570"],["dc.title","Increased Forest Soil CO2 and N2O Emissions During Insect Infestation"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","297"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Perspectives in Plant Ecology, Evolution and Systematics"],["dc.bibliographiccitation.lastpage","303"],["dc.bibliographiccitation.volume","13"],["dc.contributor.author","Fischer, Christina"],["dc.contributor.author","Thies, Carsten"],["dc.contributor.author","Tscharntke, Teja"],["dc.date.accessioned","2017-09-07T11:49:59Z"],["dc.date.available","2017-09-07T11:49:59Z"],["dc.date.issued","2011"],["dc.identifier.doi","10.1016/j.ppees.2011.08.001"],["dc.identifier.gro","3149811"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6511"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.relation.issn","1433-8319"],["dc.title","Mixed effects of landscape complexity and farming practice on weed seed removal"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","3663"],["dc.bibliographiccitation.issue","14"],["dc.bibliographiccitation.journal","Biodiversity and Conservation"],["dc.bibliographiccitation.lastpage","3681"],["dc.bibliographiccitation.volume","20"],["dc.contributor.author","Guerrero, Irene"],["dc.contributor.author","Morales, Manuel B."],["dc.contributor.author","Oñate, Juan J."],["dc.contributor.author","Aavik, Tsipe"],["dc.contributor.author","Bengtsson, Jan"],["dc.contributor.author","Berendse, Frank"],["dc.contributor.author","Clement, Lars W."],["dc.contributor.author","Dennis, Christopher"],["dc.contributor.author","Eggers, Sönke"],["dc.contributor.author","Emmerson, Mark"],["dc.contributor.author","Fischer, Christina"],["dc.contributor.author","Flohre, Andreas"],["dc.contributor.author","Geiger, Flavia"],["dc.contributor.author","Hawro, Violetta"],["dc.contributor.author","Inchausti, Pablo"],["dc.contributor.author","Kalamees, Andres"],["dc.contributor.author","Kinks, Riho"],["dc.contributor.author","Liira, Jaan"],["dc.contributor.author","Meléndez, Leandro"],["dc.contributor.author","Pärt, Tomas"],["dc.contributor.author","Thies, Carsten"],["dc.contributor.author","Tscharntke, Teja"],["dc.contributor.author","Olszewski, Adam"],["dc.contributor.author","Weisser, Wolfgang W."],["dc.date.accessioned","2017-09-07T11:54:40Z"],["dc.date.available","2017-09-07T11:54:40Z"],["dc.date.issued","2011"],["dc.description.abstract","In eight European study sites (in Spain, Ireland, Netherlands, Germany, Poland, Estonia and Sweden), abundance of breeding farmland bird territories was obtained from 500 × 500 m survey plots (30 per area, N = 240) using the mapping method. Two analyses were performed: (I) a Canonical Correspondence Analysis of species abundance in relation to geographical location and variables measuring agricultural intensification at field and farm level to identify significant intensification variables and to estimate the fractions of total variance in bird abundance explained by geography and agricultural intensification; (II) several taxonomic and functional community indices were built and analysed using GLM in relation to the intensification variables found significant in the CCA. The geographical location of study sites alone explains nearly one fifth (19.5%) of total variation in species abundance. The fraction of variance explained by agricultural intensification alone is much smaller (4.3%), although significant. The intersection explains nearly two fifths (37.8%) of variance in species abundance. Community indices are negatively affected by correlates of intensification like farm size and yield, whereas correlates of habitat availability and quality have positive effects on taxonomic and functional diversity of assemblages. Most of the purely geographical variation in farmland bird assemblage composition is associated to Mediterranean steppe species, reflecting the bio-geographical singularity of that assemblage and reinforcing the need to preserve this community. Taxonomic and functional diversity of farmland bird communities are negatively affected by agricultural intensification and positively affected by increasing farmland habitat availability and quality."],["dc.identifier.doi","10.1007/s10531-011-0156-3"],["dc.identifier.gro","3150075"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6803"],["dc.language.iso","en"],["dc.notes.status","public"],["dc.relation.issn","0960-3115"],["dc.title","Taxonomic and functional diversity of farmland bird communities across Europe: effects of biogeography and agricultural intensification"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","218"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Agriculture, Ecosystems & Environment"],["dc.bibliographiccitation.lastpage","227"],["dc.bibliographiccitation.volume","108"],["dc.contributor.author","Roschewitz, Indra"],["dc.contributor.author","Hücker, Melanie"],["dc.contributor.author","Tscharntke, Teja"],["dc.contributor.author","Thies, Carsten"],["dc.date.accessioned","2017-09-07T11:53:46Z"],["dc.date.available","2017-09-07T11:53:46Z"],["dc.date.issued","2005"],["dc.description.abstract","Agri-environmental schemes in Europe aim to support biodiversity and ecological functions in agroecosystems, which are related to both farming practices and landscape context. Here, we analysed the relative importance of farming practices and landscape context on an important ecosystem service, the naturally occurring biological pest control. In a 3-years study, we investigated cereal aphids and their mortality due to parasitism in 24 paired winter wheat fields (i.e., one organic and one conventional field close to each other). The field pairs were located in 12 landscapes differing in landscape complexity, simple landscapes with high percentage of arable land (∼80%), and complex landscapes with lower percentage of arable land (∼50%) and high proportions of semi-natural habitats. Arable land (%) was used as simple predictor of landscape complexity, as it was closely related with other landscape metrics like habitat-type diversity. Aphid population densities varied considerably between the 3 years and the 12 different landscapes. Organic farming was related to lower abundance of cereal aphids at the time of wheat flowering, but not to higher parasitism. At wheat ripening, complex landscapes were related to higher parasitism than simple landscapes, presumably due to more overwintering sites, alternative hosts and nectar sources for parasitoids. However, aphid population densities were also higher in complex landscapes, presumably due to the high availability of winter hosts for these host-alternating species. In a geographical scale analysis, we tested the relative importance of landscape complexity at 5 spatial scales (1–3 km radius around the study sites). Parasitoids responded to landscape complexity at spatial scales of 1–2 km, whereas aphid densities responded to landscape complexity at all spatial scales, indicating a trophic level-specific perception of the surrounding landscape. We conclude that complex landscapes with low percentage of arable land appeared to enhance parasitism, but also the host-alternating aphids, so overall effects of landscape complexity on cereal aphid control appear to be ambivalent."],["dc.identifier.doi","10.1016/j.agee.2005.02.005"],["dc.identifier.gro","3149972"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6689"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.relation.issn","0167-8809"],["dc.subject","Farming practices; Conventional farming; Organic farming; Landscape complexity; Cereal aphids; Aphid parasitoids; Biological control; Spatial scale"],["dc.title","The influence of landscape context and farming practices on parasitism of cereal aphids"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","424"],["dc.bibliographiccitation.lastpage","428"],["dc.contributor.author","Tscharntke, Teja"],["dc.contributor.author","Steffan-Dewenter, Ingolf"],["dc.contributor.author","Kruess, Andreas"],["dc.contributor.author","Thies, Carsten"],["dc.contributor.editor","Resh, Vincent H."],["dc.contributor.editor","Cardé, Ring T."],["dc.date.accessioned","2017-09-07T11:50:46Z"],["dc.date.available","2017-09-07T11:50:46Z"],["dc.date.issued","2009"],["dc.identifier.doi","10.1016/b978-0-12-374144-8.00120-x"],["dc.identifier.gro","3149903"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6613"],["dc.notes.status","public"],["dc.notes.submitter","chake"],["dc.publisher","Elsevier"],["dc.relation.isbn","978-0-12374-144-8"],["dc.relation.ispartof","Encyclopedia of Insects"],["dc.title","Grassland Habitats"],["dc.type","book_chapter"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","354"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Ecological Applications"],["dc.bibliographiccitation.volume","12"],["dc.contributor.author","Tscharntke, Teja"],["dc.contributor.author","Steffan-Dewenter, Ingolf"],["dc.contributor.author","Kruess, Andreas"],["dc.contributor.author","Thies, Carsten"],["dc.date.accessioned","2017-09-07T11:53:50Z"],["dc.date.available","2017-09-07T11:53:50Z"],["dc.date.issued","2007"],["dc.identifier.doi","10.2307/3060947"],["dc.identifier.gro","3149995"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6714"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.relation.issn","1051-0761"],["dc.title","Contribution of Small Habitat Fragments to Conservation of Insect Communities of Grassland-Cropland Landscapes"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]