Journal Title
Title of Journal: Landscape Ecol
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Abbravation: Landscape Ecology
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Publisher
Springer Netherlands
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Authors: Céline Josso Anne Le Ralec Lucie Raymond Julia Saulais Jacques Baudry Denis Poinsot Anne Marie Cortesero
Publish Date: 2013/08/20
Volume: 28, Issue: 9, Pages: 1697-1715
Abstract
Agriculture intensification has deeply modified agroecosystems from field to landscape scales To achieve successful pest control using natural enemies understanding species interactions over all scales remains a challenge Using the cabbage root fly as a model we studied whether field and landscape characteristics influenced colonization and infestation of broccoli fields by the pest and its control by natural enemies We also determined whether species of different trophic level or host specialization would respond to environmental characteristics at the same spatial extent During a multiplespecies and multiplespatial extent study in northwestern France we recorded pest colonization and infestation in 68 fields collected associated natural enemies and assessed crop damages In each field we considered management practices and characterized the surrounding landscape in 50–500 mwide buffers Our main findings are that Delia radicum and its main natural enemies respond to both field and landscape characteristics Seminatural areas supported both crop colonization by pests and natural enemy action The pest and its enemies differed in their responses to field or landscape variables Landscape elements such as field banks favored the movement of the pest while impeding the movement of some natural enemies Pest pressure did not increase with the neighboring density of Brassica crops The presence of natural enemies did not reduce crop damage but reduced pest emerging rates Finally specialist parasitoids responded to the landscape at larger spatial extents than generalists These results outline the complexity of improving pest control through landscape managementThis study was funded by the Région Bretagne and the Région Pays de la Loire project PBIPays and the GIS PIClég Brassinse project Authors are grateful to Jean Nabucet LTEG – Rennes for its assistance in digitalization Pierre Nouhaud ClaireMarine GoriauxPerrais Mathilde Renault Sonia Dourlot Chrystelle Paty Valérie Chaminade Clément Goubert Kévin Guichard Hany Hassan and Chloé Bourson at Rennes University France for their assistance in field samplings and samplings monitoring and Amélie Ezanic and Benoît Ricci for precious advice in statistics The manuscript also benefited greatly from comments made by two anonymous reviewers This work was supported by a PhD grant from the French Ministry for Research to C Josso
Keywords:
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Other Papers In This Journal:
- Spatial pattern of greenspace affects land surface temperature: evidence from the heavily urbanized Beijing metropolitan area, China
- Farmland bird responses to intersecting replanted areas
- How the eastern US National Forests were formed
- Spatial resilience: integrating landscape ecology, resilience, and sustainability
- The use of metapopulation and optimal foraging theories to predict movement and foraging decisions of mobile animals in heterogeneous landscapes
- Characterising landscape connectivity for conservation planning using a dispersal guild approach
- The potential to restore native woody plant richness and composition in a reforesting landscape: a modeling approach in the Ecuadorian Andes
- Past, present and future of wild ungulates in relation to changes in land use
- Biogeochemical fluxes in landscapes
- Spatiotemporal dynamics of black-tailed prairie dog colonies affected by plague
- Landscape connectivity and animal behavior: functional grain as a key determinant for dispersal
- Thresholds of landscape change: a new tool to manage green infrastructure and social–economic development
- Testing coexistence of extinction debt and colonization credit in fragmented calcareous grasslands with complex historical dynamics
- Changes in landscape naturalness derived from a historical land register—a case study from NE Germany
- Linking Land-use, Water Body Type and Water Quality in Southern New Zealand
- Spatial fit between water quality policies and hydrologic ecosystem services in an urbanizing agricultural landscape
- Modeling exurban development near Washington, DC, USA: comparison of a pattern-based model and a spatially-explicit econometric model
- The impact of land use/land cover scale on modelling urban ecosystem services
- Using landscape analysis to assess and model tsunami damage in Aceh province, Sumatra
- Geographic position and landscape composition explain regional patterns of migrating landbird distributions during spring stopover along the northern coast of the Gulf of Mexico
- Effects of thematic resolution on landscape pattern analysis
- Diagnostic tools to evaluate a spatial land change projection along a gradient of an explanatory variable
- Ontologies for transparent integrated human-natural system modelling
- Scenarios of long-term farm structural change for application in climate change impact assessment
- Influence of patch, habitat, and landscape characteristics on patterns of Lower Keys marsh rabbit occurrence following Hurricane Wilma
- Multi-scale predictive habitat suitability modeling based on hierarchically delineated patches: an example for yellow-billed cuckoos nesting in riparian forests, California, USA
- Long-term vegetation dynamics driven by climatic variations in the Inner Mongolia grassland: findings from 30-year monitoring
- Relative importance of management vs. design for implementation of large-scale ecological networks
- A global perspective on reforesting landscapes
- Consequences of a large-scale fragmentation experiment for Neotropical bats: disentangling the relative importance of local and landscape-scale effects
- Functional connectivity of lynx at their southern range periphery in Ontario, Canada
- M. Doyle and C. A. Drew (eds): Large-Scale Ecosystem Restoration: Five Case Studies from the United States
- The sensitivity of least-cost habitat graphs to relative cost surface values
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