A5004754687- Insect-Plant Interactions and Control
- Plant and animal studies
- Agriculture and Rural Development Research
- Ecology and Vegetation Dynamics Studies
- Insect and Pesticide Research
- Insect behavior and control techniques
- Forest Insect Ecology and Management
- Genetically Modified Organisms Research
- Insect Pheromone Research and Control
- Land Use and Ecosystem Services
- Horticultural and Viticultural Research
- Insect Resistance and Genetics
- Sustainable Agricultural Systems Analysis
- Insect Pest Control Strategies
- African Botany and Ecology Studies
- Atmospheric aerosols and clouds
- French Urban and Social Studies
- Plant Parasitism and Resistance
- Atmospheric Ozone and Climate
- Biological Control of Invasive Species
- Avian ecology and behavior
- Organic Food and Agriculture
- Animal Ecology and Behavior Studies
- Plant Physiology and Cultivation Studies
- Insect and Arachnid Ecology and Behavior
Plantes et Système de Cultures Horticoles
2016-2025
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2016-2025
Office National d'Études et de Recherches Aérospatiales
2001-2024
Université Paris-Saclay
2001-2022
Centre de Coopération Internationale en Recherche Agronomique pour le Développement
2011-2022
Centre Occitanie-Montpellier
2022
Écologie des Forêts Méditerranéennes
2021
Département Génétique Animale
2018
Institut National de la Recherche Agronomique
2006-2015
Centre National de la Recherche Scientifique
1999-2006
Human land use threatens global biodiversity and compromises multiple ecosystem functions critical to food production. Whether crop yield-related services can be maintained by a few dominant species or rely on high richness remains unclear. Using database from 89 studies (with 1475 locations), we partition the relative importance of richness, abundance, dominance for pollination; biological pest control; final yields in context ongoing land-use change. Pollinator enemy directly supported...
Significance Decades of research have fostered the now-prevalent assumption that noncrop habitat facilitates better pest suppression by providing shelter and food resources to predators parasitoids crop pests. Based on our analysis largest pest-control database its kind, surrounding farm fields does affect multiple dimensions control, but actual responses pests enemies are highly variable across geographies cropping systems. Because often not enhance biological more information about local...
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,...
To make quantitative predictions about the pollen dispersal of a plant species under different environmental conditions, it is necessary to determine its individual function, i.e., two-dimensional density function describing probability that grain emitted in (0, 0) fertilizes an ovule (x, y). This will depend on biological and climate parameters. We present models for corn. These are based Brownian motion with drift integrate (difference height between male female flowers) aerodynamic...
Summary Debate continues regarding the ecological impacts of genetically modified (GM) crops and their coexistence with non‐GM in Europe. In this debate, quantitative predictions gene dispersal by pollen are necessary, as a result numerous plot‐to‐plot flow experiments have been performed various crops. However, cross‐pollination rates (CPR) depend on spatial configuration plots, implying that (i) they difficult to compare among (ii) functions directly fitted CPR data inappropriate for other...
ABSTRACT Human land use threatens global biodiversity and compromises multiple ecosystem functions critical to food production. Whether crop yield-related services can be maintained by few abundant species or rely on high richness remains unclear. Using a database from 89 systems, we partition the relative importance of abundance for pollination, biological pest control final yields in context on-going land-use change. Pollinator enemy directly supported independent abundance. Up 50%...
The phenology of many species shows strong sensitivity to climate change; however, with few large scale intra-specific studies it is unclear how such varies over a species' range. We document variation in phenological temperature using laying date information from 67 populations two co-familial European songbirds, the great tit (Parus major) and blue (Cyanistes caeruleus), covering part their breeding Populations inhabiting deciduous habitats showed stronger than those evergreen mixed...
Abstract Background Rare long distance dispersal events impact the demography and genetic structure of populations. When is modelled via a kernel, one possible characterisation long-distance given by shape tail i.e. its type decay. This characteristic known to directly act on speed pattern colonization, spatial diversity during colonization. In particular, colonization waves behave differently depending whether kernel decreases faster or slower than an exponential (i.e. thin-tailed vs....
Numerous morphological species of pathogenic fungi have been shown to actually encompass several genetically isolated lineages, often specialized on different hosts and, thus, constituting host races or sibling species. In this article, we explore theoretically the importance some aspects life cycle conditions sympatric divergence races, particularly in fungal plant pathogens. Because cycles classically modeled by theoreticians speciation correspond those free-living animals, requires...
Summary Many cultivated species can escape from fields and colonize seminatural habitats as feral populations. Of these, oilseed rape is a widespread feature of field margins roadside verges. Although considered in several studies, the general processes leading to persistence are still poorly known. Notably, it remains unclear whether these annuals form transient populations resulting mainly seed immigration (either neighbouring or during transport), they show real ability persist through...
Abstract To quantify the effect of surrounding landscape context on a biological response at site, most studies measure variables within discs centred this (threshold‐based method, TBM). This implicitly assumes that unit area is consistent up to threshold distance beyond which it drops zero. However, seems more likely declines with increasing from point. Here, we develop method effects by weighting functions decrease distance. We illustrate using abundance data birds and insects, compare...
Understanding patterns of pollen movement at the landscape scale is important for establishing management rules following release genetically modified (GM) crops. We use here a mating model adapted to cultivated species estimate dispersal kernels from genotypes progenies male-sterile plants positioned different sampling sites within 10 x 10-km oilseed rape production area. Half clouds sampled by originated uncharacterized sources that could consist both large volunteer and feral populations,...
Abstract Estimating the frequency of long‐distance pollination is important in cultivated species, particularly to assess risk gene transfer following release genetically modified crops. For this purpose, we estimated diversity and origin fertilizing pollen a 10 × km French oilseed rape production area. First, cultivar grown each field was identified through surveys farmers using microsatellite markers. Examination seed set fields indicated high rates contamination (8.7%) from other sources...
1. Interest in pollen-borne gene dispersal has grown with the cultivation of genetically modified plants. To date, both experimental data and models oilseed rape (OSR) Brassica napus pollen movement at landscape scale do not clearly differentiate between wind- insect-mediated dispersal. Estimations would be valuable for managing potential escapes transgenes. 2. quantify intensity spatial by insect pollinators an agricultural landscape, bait points made flowering male-sterile OSR that attract...