A5051656016- Plant and animal studies
- Ecology and Vegetation Dynamics Studies
- Insect-Plant Interactions and Control
- Agriculture and Rural Development Research
- Forest Insect Ecology and Management
- Land Use and Ecosystem Services
- Insect and Pesticide Research
- Biological Control of Invasive Species
- French Urban and Social Studies
- African Botany and Ecology Studies
- Plant Parasitism and Resistance
- Animal Ecology and Behavior Studies
- Infrared Target Detection Methodologies
- Species Distribution and Climate Change
- Insect and Arachnid Ecology and Behavior
- Conservation, Biodiversity, and Resource Management
- Insect Utilization and Effects
- Agricultural Innovations and Practices
- Insect behavior and control techniques
- Forest Management and Policy
- Insect Resistance and Genetics
- Isotope Analysis in Ecology
- Bat Biology and Ecology Studies
- Forest Ecology and Biodiversity Studies
- Insect Pheromone Research and Control
Dynamiques et écologie des paysages agriforestiers
2015-2024
Zone Atelier Moselle
2019-2024
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2020-2024
Université de Toulouse
2013-2023
Génétique Physiologie et Systèmes d'Elevage
2011-2023
Institut National Polytechnique de Toulouse
2012-2021
École Nationale Supérieure Agronomique de Toulouse
2011-2019
Centre Occitanie-Toulouse
2009-2019
Centre Hospitalier Laennec
2018
AGroecologies, Innovations & Ruralities
2015
Agricultural landscape homogenization has detrimental effects on biodiversity and key ecosystem services. Increasing agricultural heterogeneity by increasing seminatural cover can help to mitigate loss. However, the amount of is generally low difficult increase in many intensively managed landscapes. We hypothesized that crop mosaic itself (hereafter "crop heterogeneity") also have positive biodiversity. In 8 contrasting regions Europe North America, we selected 435 landscapes along...
Barnaud, C., E. Corbera, R. Muradian, N. Salliou, C. Sirami, A. Vialatte, J.-P. Choisis, Dendoncker, Mathevet, Moreau, V. Reyes-García, M. Boada, Deconchat, Cibien, S. Garnier, Maneja, and Antona. 2018. Ecosystem services, social interdependencies, collective action: a conceptual framework. Ecology Society 23(1):15. https://doi.org/10.5751/ES-09848-230115
Forest pest damage is expected to increase with global change. Tree diversity could mitigate this impact, but unambiguous demonstration of the diversity–resistance relationship lacking in semi-natural mature forests. We used a network 208 forest plots sampled along two orthogonal gradients increasing tree species richness and latitudes assess total defoliation Europe. found positive between resistance insect herbivores: overall broadleaved significantly decreased number This pattern...
Complex landscapes including semi-natural habitats are expected to favour natural enemies thereby enhancing pest biocontrol in crops. However, when considering a large number of situations, the response landscape properties is globally inconsistent, possible explanation being that local agricultural practices counteract effects. In this study, along crossed gradient pesticide use intensity and simplification, we analysed interactive effects characteristics on biocontrol. During 3 years,...
Natural pest and weed regulation are essential for agricultural production, but the spatial distribution of natural enemies within crop fields its drivers mostly unknown. Using 28 datasets comprising 1204 study sites across eight Western Central European countries, we performed a quantitative synthesis carabid richness, activity densities functional traits in relation to field edges (i.e. distance functions). We show that functions carabids strongly depend on traits, type and, lesser extent,...
The impact of invasive herbivore species may be lower in more diverse plant communities due to mechanisms associational resistance. According the “resource concentration hypothesis” amount and accessibility host plants is reduced communities, thus limiting exploitation resources by consumers. In addition, “natural enemy suggests that richer assemblages provide natural enemies with complementary habitats, promoting top down regulation herbivores. We tested these two hypotheses comparing crown...
Abstract Increasing landscape heterogeneity by restoring semi‐natural elements to reverse farmland biodiversity declines is not always economically feasible or acceptable farmers due competition for land. We hypothesized that increasing the of crop mosaic itself, hereafter referred as heterogeneity, can have beneficial effects on within‐field plant diversity. Using a unique multi‐country dataset from cross‐continent collaborative project covering 1,451 agricultural fields within 432...
Habitats in agroecosystems are ephemeral, and characterized by frequent disturbances forcing pest species to successively colonize various hosts belonging either the cultivated or uncultivated part of agricultural landscape. The role wild habitats as reservoirs refuges for aphid Sitobion avenae that fields was assessed investigating genetic structure populations collected on both cereal crops (wheat, barley oat) (Yorkshire fog, cocksfoot, bulbous oatgrass tall oatgrass) western France....
Population structure of pests and beneficial species is an important issue when designing management strategies to optimize ecosystem services. In this study, we investigated for the first time population at a continental scale two migratory hoverflies providing both pest regulation pollination services [Episyrphus balteatus Sphaerophoria scripta (Diptera: Syrphidae)]. To achieve objective, used sets 12 species-specific microsatellite markers on large-scale sampling from all over Europe. Our...
Agroecosystems are facing new challenges in the context of a growing and increasingly interconnected human population, paradigm shift is needed to successfully address many complex questions that these will generate. The transition providing multiple services within an agroecosystem starting point for heightened multifunctionality, however, there still hesitation among stakeholders about moving towards multi-service systems, largely because lack knowledge linking productivity...
Bats and birds are key providers of ecosystem services in forests. How climate habitat jointly shape their communities is well studied, but whether biotic predictors from other trophic levels may improve bird bat diversity models less known, especially across large bioclimatic gradients. Here, we achieved multi-taxa surveys 209 mature forests replicated six European countries Spain to Finland, investigate the importance (i.e. abundance or activity defoliating insects, spiders, earthworms...
Farming intensity and landscape heterogeneity influence agrobiodiversity associated ecological functions. The relative contributions of these agroecosystem components to agricultural production remain unclear because inter-relations weather-dependant variations. Using a structural equation modelling approach, we estimated direct indirect farming (soil management, pesticide use fertilisation) (of semi-natural covers crop mosaic) cereal production, in 54 fields (mostly wheat), two years (24 30...
Abstract 1 Integrated management of crop pests requires the identification appropriate spatial scale at which colonization processes occurs. We assessed, by coupling demographic and genetic methods, relative contribution local transient migrants grain aphid Sitobion avenae to wheat field in spring. 2 examined, during two consecutive years, daily compared this with flight monitored a 12.2‐m suction trap. The profiles aphids landing on crops were those both flying caught trap populations from...
Understanding the stability of communities is fundamental in theoretical and applied ecology. Organisms atop trophic chains are particularly sensitive to disturbance, especially when they dependent on a specific resource subject strong fluctuations density quality, which case parasitoids. We investigated (1) variability spatiotemporal relative abundance patterns cereal aphid parasitoid community, determining at what scales such vary agrosystems. also whether (2) abundances strongly...
Abstract While the temporal stability of plant communities has been well investigated, almost nothing is known about inter‐annual arthropod communities, especially those inhabiting highly disturbed habitats such as croplands. We investigated effects landscape, management and community drivers on carabid biomass its mean in agricultural landscapes. The dataset was composed carabids collected 57 arable agroecosystems from three areas France excluding pastures managed under organic,...
Agricultural pests are not restricted to crops, but often simultaneously or successively use different cultivated and uncultivated hosts. Nevertheless, the source–sink role of habitats in life cycle crop remains poorly understood. This is largely due difficulty tracking displacements small organisms agricultural landscapes. We used stable-isotope ratios order infer natal host plant individuals English grain aphid Sitobion avenae colonizing wheat fields autumn. showed that among numerous...