Rösch, Verena

[["dc.bibliographiccitation.firstpage","209"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Oecologia"],["dc.bibliographiccitation.lastpage","222"],["dc.bibliographiccitation.volume","179"],["dc.contributor.author","Rösch, Verena"],["dc.contributor.author","Tscharntke, Teja"],["dc.contributor.author","Scherber, Christoph"],["dc.contributor.author","Batáry, Péter"],["dc.date.accessioned","2017-09-07T11:53:47Z"],["dc.date.available","2017-09-07T11:53:47Z"],["dc.date.issued","2015"],["dc.identifier.doi","10.1007/s00442-015-3315-5"],["dc.identifier.gro","3149977"],["dc.identifier.pmid","25911274"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6694"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.relation.issn","0029-8549"],["dc.title","Biodiversity conservation across taxa and landscapes requires many small as well as single large habitat fragments"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","539"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Oecologia"],["dc.bibliographiccitation.lastpage","546"],["dc.bibliographiccitation.volume","195"],["dc.contributor.author","Batáry, Péter"],["dc.contributor.author","Rösch, Verena"],["dc.contributor.author","Dormann, Carsten F."],["dc.contributor.author","Tscharntke, Teja"],["dc.date.accessioned","2021-04-14T08:30:48Z"],["dc.date.available","2021-04-14T08:30:48Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1007/s00442-020-04830-6"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/83378"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.eissn","1432-1939"],["dc.relation.issn","0029-8549"],["dc.title","Increasing connectivity enhances habitat specialists but simplifies plant–insect food webs"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","387"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Journal of Applied Ecology"],["dc.bibliographiccitation.lastpage","394"],["dc.bibliographiccitation.volume","50"],["dc.contributor.author","Rösch, Verena"],["dc.contributor.author","Tscharntke, Teja"],["dc.contributor.author","Scherber, Christoph"],["dc.contributor.author","Batáry, Péter"],["dc.contributor.editor","Osborne, Juliet"],["dc.date.accessioned","2017-09-07T11:50:01Z"],["dc.date.available","2017-09-07T11:50:01Z"],["dc.date.issued","2013"],["dc.description.abstract","Calcareous grasslands are among the most species-rich habitats in Europe, but are increasingly threatened due to abandonment and fragmentation. Little is known about how the surrounding landscape influences fragmentation effects. Here, we focus on the interaction between habitat fragmentation and landscape composition on leafhoppers, a highly diverse group of insects, including many species that are likely to be vulnerable to changes in their environment. We selected 14 small and 14 large fragments of calcareous grassland in Central Germany, differing in isolation from other calcareous grasslands and in composition of the surrounding landscape. Leafhoppers, sampled by sweep netting, were either specialists that depended on calcareous grasslands or generalists that could use the landscape matrix, but still required low-productivity habitats. Increasing habitat isolation reduced leafhopper species richness in simple (dominated by arable crops), but not in complex landscapes. This effect was driven by the generalist species. In simple landscapes, leafhoppers may find it more difficult to reach the next suitable fragment due to a lack of alternative resources during dispersal. Moreover, we found that generalist species richness increased with increasing connectivity on small fragments, whereas it remained stable with increasing connectivity on large fragments. In small, isolated fragments, a higher extinction rate combined with a lower probability of recolonization is thought to cause the reduced species richness. Synthesis and applications. Our results show for the first time that insect species richness can be negatively affected by increasing habitat isolation in simplified but not in complex landscapes and in small but not in large fragments. We provide evidence that mitigating the negative effects of habitat fragmentation needs to take the surrounding landscape into account. Management efforts should prioritize (i) an increase in connectivity of small, isolated fragments, (ii) an increase in connectivity of fragments in simple landscapes and (iii) enhanced dispersal by increasing heterogeneity of both landscape composition and configuration. Moreover, extensive management of fragments by grazing or mowing to increase local habitat quality for leafhoppers would benefit other insect groups as well."],["dc.identifier.doi","10.1111/1365-2664.12056"],["dc.identifier.gro","3149819"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6519"],["dc.language.iso","en"],["dc.notes.status","public"],["dc.relation.issn","0021-8901"],["dc.subject","Auchenorrhyncha; connectivity ;generalists; Germany; herbivores; isolation; leafhoppers; landscape context; matrix; specialists"],["dc.title","Landscape composition, connectivity and fragment size drive effects of grassland fragmentation on insect communities"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1279"],["dc.bibliographiccitation.issue","9"],["dc.bibliographiccitation.journal","Nature ecology & evolution"],["dc.bibliographiccitation.lastpage","1284"],["dc.bibliographiccitation.volume","1"],["dc.contributor.author","Batáry, Péter"],["dc.contributor.author","Gallé, Róbert"],["dc.contributor.author","Riesch, Friederike"],["dc.contributor.author","Fischer, Christina"],["dc.contributor.author","Dormann, Carsten F."],["dc.contributor.author","Mußhoff, Oliver"],["dc.contributor.author","Császár, Péter"],["dc.contributor.author","Fusaro, Silvia"],["dc.contributor.author","Gayer, Christoph"],["dc.contributor.author","Happe, Anne-Kathrin"],["dc.contributor.author","Kurucz, Kornélia"],["dc.contributor.author","Molnár, Dorottya"],["dc.contributor.author","Rösch, Verena"],["dc.contributor.author","Wietzke, Alexander"],["dc.contributor.author","Tscharntke, Teja"],["dc.date.accessioned","2018-03-13T13:50:24Z"],["dc.date.available","2018-03-13T13:50:24Z"],["dc.date.issued","2017"],["dc.description.abstract","Agricultural intensification drives biodiversity loss and shapes farmers' profit, but the role of legacy effects and detailed quantification of ecological-economic trade-offs are largely unknown. In Europe during the 1950s, the Eastern communist bloc switched to large-scale farming by forced collectivization of small farms, while the West kept small-scale private farming. Here we show that large-scale agriculture in East Germany reduced biodiversity, which has been maintained in West Germany due to >70% longer field edges than those in the East. In contrast, profit per farmland area in the East was 50% higher than that in the West, despite similar yield levels. In both regions, switching from conventional to organic farming increased biodiversity and halved yield levels, but doubled farmers' profits. In conclusion, European Union policy should acknowledge the surprisingly high biodiversity benefits of small-scale agriculture, which are on a par with conversion to organic agriculture."],["dc.identifier.doi","10.1038/s41559-017-0272-x"],["dc.identifier.pmid","29046556"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/12998"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.relation.eissn","2397-334X"],["dc.title","The former Iron Curtain still drives biodiversity-profit trade-offs in German agriculture"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","92"],["dc.bibliographiccitation.journal","Agriculture, Ecosystems & Environment"],["dc.bibliographiccitation.lastpage","98"],["dc.bibliographiccitation.volume","254"],["dc.contributor.author","Happe, Anne-Kathrin"],["dc.contributor.author","Riesch, Friederike"],["dc.contributor.author","Rösch, Verena"],["dc.contributor.author","Gallé, Róbert"],["dc.contributor.author","Tscharntke, Teja"],["dc.contributor.author","Batáry, Péter"],["dc.date.accessioned","2018-03-13T13:48:10Z"],["dc.date.available","2018-03-13T13:48:10Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1016/j.agee.2017.11.019"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/12995"],["dc.notes.status","zu prüfen"],["dc.title","Small-scale agricultural landscapes and organic management support wild bee communities of cereal field boundaries"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1204"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","Diversity and Distributions"],["dc.bibliographiccitation.lastpage","1217"],["dc.bibliographiccitation.volume","21"],["dc.contributor.author","Kormann, Urs"],["dc.contributor.author","Rösch, Verena"],["dc.contributor.author","Batáry, Péter"],["dc.contributor.author","Tscharntke, Teja"],["dc.contributor.author","Orci, Kirill Márk"],["dc.contributor.author","Samu, Ferenc"],["dc.contributor.author","Scherber, Christoph"],["dc.contributor.editor","Kühn, Ingolf"],["dc.date.accessioned","2017-09-07T11:50:43Z"],["dc.date.available","2017-09-07T11:50:43Z"],["dc.date.issued","2015"],["dc.description.abstract","AimBiodiversity across the globe is heavily eroded by intensified management at local and landscape scales. Species communities of calcareous grasslands, which are among Europe's most diverse habitats, are severely threatened by the cessation of appropriate traditional management, loss of habitat connectivity and simplification of the surrounding landscape. However, our understanding of these often interrelated factors remains limited, in particular for trait-mediated responses across taxa. Here, we test the independent effects of local management (grazing, mowing and abandonment), habitat connectivity (measured by a connectivity index) and landscape complexity (indicated by the percentage of arable land) on nine taxa: plants, butterflies, bees, grasshoppers, hoverflies, spiders, true bugs, rove beetles and leafhoppers on small semi-natural calcareous grassland remnants (< 1 ha).LocationCentral Germany.MethodsWe use a joint analysis across taxa to identify general and trait-mediated responses (body size and Red List status) in species richness, abundance and community composition.ResultsWe identified three key drivers of local diversity patterns: First, an increasing proportion of arable land from 10% to 80% led to a 29% loss of overall species richness. Second, despite differences between taxa, increasing habitat connectivity generally enhanced species richness. Connectivity effects were more accentuated in the large species per taxon, which can be expected to be good dispersers. Finally, grazing reduced species richness and abundance much more than annual mowing or short-term abandonment (5–15 years), in particular for red-listed species. We attribute this to plant resource removal through overgrazing and trampling.Main conclusionsFor the conservation management of small calcareous grasslands, we advocate an alternating strategy of mowing or lenient grazing and short-term abandonment, prioritizing connected fragments surrounded by diverse landscapes. Despite taxon-specific responses, our study across nine taxa demonstrates universal, trait-mediated effects of management, landscape complexity and connectivity on local biodiversity in fragmented communities."],["dc.identifier.doi","10.1111/ddi.12324"],["dc.identifier.gro","3149889"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6597"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.relation.issn","1366-9516"],["dc.title","Local and landscape management drive trait-mediated biodiversity of nine taxa on small grassland fragments"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","127"],["dc.bibliographiccitation.journal","Agriculture, Ecosystems & Environment"],["dc.bibliographiccitation.lastpage","133"],["dc.bibliographiccitation.volume","235"],["dc.contributor.author","Madeira, Filipe"],["dc.contributor.author","Tscharntke, Teja"],["dc.contributor.author","Elek, Zoltán"],["dc.contributor.author","Kormann, Urs G."],["dc.contributor.author","Pons, Xavier"],["dc.contributor.author","Rösch, Verena"],["dc.contributor.author","Samu, Ferenc"],["dc.contributor.author","Scherber, Christoph"],["dc.contributor.author","Batáry, Péter"],["dc.date.accessioned","2017-09-07T11:50:10Z"],["dc.date.available","2017-09-07T11:50:10Z"],["dc.date.issued","2016"],["dc.description.abstract","Spillover effects of organisms from semi-natural habitats to adjacent crops have been frequently reported, yet evidence for the reversed process and associated functional consequences remains scarce. We examined the spillover of carabids, rove beetles and spiders from agricultural lands to protected, high-nature value calcareous grasslands by comparing two neighbourhood types: seven calcareous grasslands neighbouring intensively managed winter wheat fields and seven calcareous grasslands neighbouring intensively managed meadows in Germany. We examined arthropod activity density with repeated pitfall trapping in both the edge and the interior of all three habitat types (14 study sites). All three arthropod groups showed consistently higher activity density in calcareous grasslands adjacent to wheat fields than calcareous grasslands adjacent to meadows, apparently through spillover effects. Activity density of carabids and spiders exhibited a decline from the interior to the edge of the wheat fields and to even lower density at the edge and lowest density in the interior of the calcareous grassland. Carabid spillover from both neighbouring habitats to grasslands was driven by a dominant predatory species, Pterostichus melanarius, whereas Oedothorax apicatus was the dominant contributor to spider spillover from wheat to grasslands. Our results show that neighbourhood identity (wheat or meadow) can shape arthropod density and community composition in semi-natural habitats due to spillover of carabid beetles, spiders and rove beetles from adjacent crop fields. Neighbourhood effects on spillover are thus more accentuated at the cropland-grassland interface compared to the meadow-grassland boundary, with small grasslands being particularly affected due to their high edge-to-interior ratios. Our results suggest that meadows around high-nature value, protected grassland reserves, may be important conservation elements by attenuating arthropod spillover from arable crops. Such spillover may compromise the identity, structure and functioning of endangered communities."],["dc.identifier.doi","10.1016/j.agee.2016.10.012"],["dc.identifier.gro","3149854"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6558"],["dc.language.iso","en"],["dc.notes.status","public"],["dc.relation.issn","0167-8809"],["dc.title","Spillover of arthropods from cropland to protected calcareous grassland – the neighbouring habitat matters"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","219"],["dc.bibliographiccitation.lastpage","219"],["dc.contributor.author","Happe, Anne-Kathrin"],["dc.contributor.author","Riesch, Friederike"],["dc.contributor.author","Rösch, Verena"],["dc.contributor.author","Gallé, Róbert"],["dc.contributor.author","Tscharntke, Teja"],["dc.contributor.author","Batáry, Péter"],["dc.date.accessioned","2017-11-29T15:56:52Z"],["dc.date.available","2017-11-29T15:56:52Z"],["dc.date.issued","2016"],["dc.fs.externid","751110"],["dc.fs.pkfprnr","11732"],["dc.identifier.fs","623836"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/11236"],["dc.language.iso","en"],["dc.notes.intern","FactScience-Import"],["dc.notes.status","final"],["dc.publisher","Gesellschaft für Ökologie"],["dc.publisher.place","Marburg"],["dc.relation.conference","Annual Meeting of the Ecological Society of Germany, Austria and Switzerland"],["dc.relation.eventend","2016-09-09"],["dc.relation.eventlocation","Marburg"],["dc.relation.eventstart","2016-09-05"],["dc.relation.ispartof","150 years of Ecology - lessons for the future"],["dc.relation.ispartofseries","Verhandlungen der Gesellschaft für Ökologie;46"],["dc.relation.issn","0171-1113"],["dc.title","Wild bees in cereal field margins: benefits of small-scale agriculture and organic management"],["dc.type","conference_paper"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","unknown"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1045"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Landscape Ecology"],["dc.bibliographiccitation.lastpage","1056"],["dc.bibliographiccitation.volume","34"],["dc.contributor.author","Kormann, Urs G."],["dc.contributor.author","Scherber, Christoph"],["dc.contributor.author","Tscharntke, Teja"],["dc.contributor.author","Batáry, Péter"],["dc.contributor.author","Rösch, Verena"],["dc.date.accessioned","2019-07-23T06:54:52Z"],["dc.date.available","2019-07-23T06:54:52Z"],["dc.date.issued","2019"],["dc.description.abstract","Context Global change pressures (GCPs) imperil species and associated ecosystem functions, but studies investigating interactions of landscape-scale pressures remain scarce. Loss of species-rich habitat and agricultural expansion are major threats for biodiversity, but if or how these factors interactively determine community-level shifts and conservation outcomes remains unclear. Objectives We tested whether matrix simplification (dominance of cropland) and reduced connectivity (i.e. landscape-scale habitat loss) either additively, synergistically or antagonistically cause community shifts in butterflies, a group of high conservation relevance. Methods We surveyed butterflies on 30 small calcareous grassland fragments (< 1 ha) in Central Germany, representing independent gradients in grassland connectivity (an index combining grassland area and proximity), and matrix quality (landscape proportion of cropland). Using proportional odds logistic regression, we assessed whether connectivity and matrix quality interactively altered the distribution of Red List statuses, and assessed effects of local scale management (mowing, grazing, short-term abandonment). Results We found synergistic, conservation relevant effects: Connectivity boosted the proportion of red-listed species from 20 to 52% in crop land poor landscapes, but not in crop land rich landscapes, particularly driven by endangered and critically endangered species. Grazed sites had the lowest species richness, abundance, and proportions of conservation relevant butterflies. Implications Mitigation measures targeting one landscape-scale pressure only may be inefficient, particularly for red-listed species. Increasing habitat connectivity bolsters butterfly communities and potential pollination services, but only if accompanied by measures to soften the matrix. Hence, halting biodiversity losses needs better understanding and implementation of complex conservation measures at the landscape scale."],["dc.identifier.doi","10.1007/s10980-019-00835-6"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/61855"],["dc.language.iso","en"],["dc.relation.issn","0921-2973"],["dc.relation.issn","1572-9761"],["dc.title","Connectedness of habitat fragments boosts conservation benefits for butterflies, but only in landscapes with little cropland"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","e02717"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Ecosphere"],["dc.bibliographiccitation.volume","10"],["dc.contributor.author","Rossetti, Maria Rosa"],["dc.contributor.author","Rösch, Verena"],["dc.contributor.author","Videla, Martín"],["dc.contributor.author","Tscharntke, Teja"],["dc.contributor.author","Batáry, Péter"],["dc.date.accessioned","2019-07-09T11:51:22Z"],["dc.date.available","2019-07-09T11:51:22Z"],["dc.date.issued","2019"],["dc.description.abstract","Herbivory is one of the most important antagonistic insect–plant interactions and can be influenced by factors at local and landscape scales. Landscape fragmentation may reduce herbivory directly (i.e., decreasing abundance and species richness of herbivores), but also indirectly increase herbivory (i.e., releasing herbivores from top-down control). At a local scale, reduced plant diversity may enhance herbivory through lessened associated resistance, while resource availability (i.e., higher vegetation height and cover) may promote herbivory. Few studies have simultaneously considered the influence of local and landscape variables on insect herbivory. We evaluate effects of landscape (fragment size, connectivity, and arable land percentage) and local factors (plant cover and height and plant species richness) on insect herbivory in fragmented calcareous grasslands. Further, we ask whether these effects depend on feeding traits of herbivores (chewers vs. suckers) and habitat specialization of plants (specialists vs. generalists). Results show that herbivory was best explained by models including variables at both local and landscape scales. However, local factors were more important than landscape variables. Herbivory was in all cases positively related to height of herbs (i.e., taller and more heterogeneous food resources), whereas the effect of plant species richness varied with feeding traits of herbivores. Herbivory by chewers, which are commonly more generalist feeders, was negatively affected by plant species richness, supporting the idea of associated plant resistance. In contrast, herbivory by suckers, which tend to be more specialized, increased with plant richness. Although there was little influence of landscape scale, herbivory on specialist plants was significantly higher in smaller grasslands probably as a consequence of herbivore release from natural enemies. Functional redundancy among herbivore species would allow to maintain overall herbivory in fragmented calcareous grasslands. This study highlights the need to consider different herbivore and plant traits for a better understanding of herbivory responses to local and landscape factors."],["dc.identifier.doi","10.1002/ecs2.2717"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/16111"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/59933"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.rights","CC BY 3.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/3.0"],["dc.subject.ddc","630"],["dc.title","Insect and plant traits drive local and landscape effects on herbivory in grassland fragments"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]