1. Within-Crop Air Temperature and Humidity Outcomes on Spatio-Temporal Distribution of the Key Rose Pest Frankliniella occidentalis.

    PLoS ONE 10(5):e0126655 (2015) PMID 26011275 PMCID PMC4444013

    Frankliniella occidentalis (Pergande) is a key pest of various crops worldwide. In this study, we analyse the dependence of the infestation of this pest on spatially distributed micro climatic factors in a rose greenhouse. Despite the importance of this subject, the few existing studies have bee...
  2. Narrow bottlenecks affect Pea seedborne mosaic virus populations during vertical seed transmission but not during leaf colonization.

    PLoS Pathogens 10(1):e1003833 (2014) PMID 24415934 PMCID PMC3887104

    The effective size of populations (Ne) determines whether selection or genetic drift is the predominant force shaping their genetic structure and evolution. Populations having high Ne adapt faster, as selection acts more intensely, than populations having low Ne, where random effects of genetic ...
  3. Narrow bottlenecks affect Pea seedborne mosaic virus populations during vertical seed transmission but not during leaf colonization.

    PLoS Pathogens 10(1):e1003833 (2014) PMID 24415934 PMCID PMC3887104

    The effective size of populations (Ne) determines whether selection or genetic drift is the predominant force shaping their genetic structure and evolution. Populations having high Ne adapt faster, as selection acts more intensely, than populations having low Ne, where random effects of genetic ...
  4. Narrow bottlenecks affect Pea seedborne mosaic virus populations during vertical seed transmission but not during leaf colonization.

    PLoS Pathogens 10(1):e1003833 (2014) PMID 24415934 PMCID PMC3887104

    The effective size of populations (Ne) determines whether selection or genetic drift is the predominant force shaping their genetic structure and evolution. Populations having high Ne adapt faster, as selection acts more intensely, than populations having low Ne, where random effects of genetic ...
  5. Designing integrated management scenarios using simulation-based and multi-objective optimization: Application to the peach tree–Myzus persicaeaphid system

    Ecological Modelling 246:47 (2012)

    Highlights ► Crop–pest dynamics and their integrated management is modeled. ► Modeling is used with multi-objective optimization to design management systems. ► Cultural practices can be alternatives to chemicals. ► Their optimal values vary between the farmer profiles and pe...
  6. Designing integrated management scenarios using simulation-based and multi-objective optimization: Application to the peach tree–Myzus persicaeaphid system

    Ecological Modelling 246:47 (2012)

    Highlights ► Crop–pest dynamics and their integrated management is modeled. ► Modeling is used with multi-objective optimization to design management systems. ► Cultural practices can be alternatives to chemicals. ► Their optimal values vary between the farmer profiles and pe...
  7. Modelling the evolutionary dynamics of viruses within their hosts: a case study using high-throughput sequencing.

    PLoS Pathogens 8(4):e1002654 (2012) PMID 22532800 PMCID PMC3330117

    Uncovering how natural selection and genetic drift shape the evolutionary dynamics of virus populations within their hosts can pave the way to a better understanding of virus emergence. Mathematical models already play a leading role in these studies and are intended to predict future emergences...
  8. Modelling the evolutionary dynamics of viruses within their hosts: a case study using high-throughput sequencing.

    PLoS Pathogens 8(4):e1002654 (2012) PMID 22532800 PMCID PMC3330117

    Uncovering how natural selection and genetic drift shape the evolutionary dynamics of virus populations within their hosts can pave the way to a better understanding of virus emergence. Mathematical models already play a leading role in these studies and are intended to predict future emergences...
  9. Should I stay or should I go? A habitat-dependent dispersal kernel improves prediction of movement.

    PLoS ONE 6(7):e21115 (2011) PMID 21765890 PMCID PMC3134457

    The analysis of animal movement within different landscapes may increase our understanding of how landscape features affect the perceptual range of animals. Perceptual range is linked to movement probability of an animal via a dispersal kernel, the latter being generally considered as spatially ...
  10. Should I stay or should I go? A habitat-dependent dispersal kernel improves prediction of movement.

    PLoS ONE 6(7):e21115 (2011) PMID 21765890 PMCID PMC3134457

    The analysis of animal movement within different landscapes may increase our understanding of how landscape features affect the perceptual range of animals. Perceptual range is linked to movement probability of an animal via a dispersal kernel, the latter being generally considered as spatially ...
  11. Spatial analyses of ecological count data: A density map comparison approach

    Basic and Applied Ecology 11(8):734 (2010)

    Analysing spatial patterns of population distributions may help to infer the decisive underlying ecological processes. Here we propose a method adapted to the spatial analysis of count data. Named MAPCOMP (MAP COMParison), it is based on the calculation of a formal distance, the Hellinger d...
  12. Spatial analyses of ecological count data: A density map comparison approach

    Basic and Applied Ecology 11(8):734 (2010)

    Analysing spatial patterns of population distributions may help to infer the decisive underlying ecological processes. Here we propose a method adapted to the spatial analysis of count data. Named MAPCOMP (MAP COMParison), it is based on the calculation of a formal distance, the Hellinger d...
  13. Modelling coupled peach tree–aphid population dynamics and their control by winter pruning and nitrogen fertilization

    Ecological Modelling 221(19):2363 (2010)

    Nitrogen fertilization and winter pruning are commonly used to control crop production in peach [ Prunus persica (L.) Batsch] orchards. They are also known to affect the dynamics of Myzus persicae (Sulzer) (Homoptera: Aphididae) aphid populations via bottom-up regulation proces...
  14. Modelling coupled peach tree–aphid population dynamics and their control by winter pruning and nitrogen fertilization

    Ecological Modelling 221(19):2363 (2010)

    Nitrogen fertilization and winter pruning are commonly used to control crop production in peach [ Prunus persica (L.) Batsch] orchards. They are also known to affect the dynamics of Myzus persicae (Sulzer) (Homoptera: Aphididae) aphid populations via bottom-up regulation proces...
  15. Spatial distribution of an arthropod community in a pear orchard (southern France):Identification of a hedge effect

    Agriculture, Ecosystems & Environment 127(3):166 (2008)

    This study analysed specific features of the spatial distribution of a global population of arthropods in an experimental orchard of pear trees, Pyrus communis (L.), in southern France. Insect fauna was sampled by regular beating of the 210 trees in the experimental orchard from spri...
  16. Spatial distribution of an arthropod community in a pear orchard (southern France):Identification of a hedge effect

    Agriculture, Ecosystems & Environment 127(3):166 (2008)

    This study analysed specific features of the spatial distribution of a global population of arthropods in an experimental orchard of pear trees, Pyrus communis (L.), in southern France. Insect fauna was sampled by regular beating of the 210 trees in the experimental orchard from spri...
  17. Estimation of the number of virus particles transmitted by an insect vector.

    PNAS 104(45):17891 (2007) PMID 17971440 PMCID PMC2077060

    Plant viruses are submitted to narrow population bottlenecks both during infection of their hosts and during horizontal transmission between host individuals. The size of bottlenecks exerted on virus populations during plant invasion has been estimated in a few pathosystems but is not addressed ...
  18. Estimation of the number of virus particles transmitted by an insect vector.

    PNAS 104(45):17891 (2007) PMID 17971440 PMCID PMC2077060

    Plant viruses are submitted to narrow population bottlenecks both during infection of their hosts and during horizontal transmission between host individuals. The size of bottlenecks exerted on virus populations during plant invasion has been estimated in a few pathosystems but is not addressed ...
  19. A spatial hazard model for cluster detection on continuous indicators of disease: application to somatic cell score.

    Veterinary Research 38(4):585 (2007) PMID 17540160

    Methods for spatial cluster detection dealing with diseases quantified by continuous variables are few, whereas several diseases are better approached by continuous indicators. For example, subclinical mastitis of the dairy cow is evaluated using a continuous marker of udder inflammation, the so...
    PDF not found
  20. Are agronomic models useful for studying farmers' fertilisation practices?

    Agricultural Systems 83(3):297 (2005)

    Nitrogen fertilisation is a source of potential groundwater pollution and is a key issue in the current debate about the environmental impacts of agricultural production. It is also a key element in the management of cropping systems by farmers. Therefore, cropping system design entails the...