A5024122422- Plant and animal studies
- Insect and Arachnid Ecology and Behavior
- Insect and Pesticide Research
- Mosquito-borne diseases and control
- Forest Insect Ecology and Management
- Aquatic Ecosystems and Biodiversity
- Species Distribution and Climate Change
- Coral and Marine Ecosystems Studies
- Plant Parasitism and Resistance
- Neurobiology and Insect Physiology Research
- Orthoptera Research and Taxonomy
- Vector-borne infectious diseases
- Genetic diversity and population structure
- Ecology and Vegetation Dynamics Studies
- Animal Behavior and Reproduction
- Biological Control of Invasive Species
- Entomopathogenic Microorganisms in Pest Control
- Phytoplasmas and Hemiptera pathogens
- Evolution and Genetic Dynamics
- Remote Sensing in Agriculture
Centre de Coopération Internationale en Recherche Agronomique pour le Développement
2011-2024
Agropolis International
2017-2024
Centre de Biologie et de Gestion des Populations
2017-2024
Université de Montpellier
2018-2021
Institut de Recherche pour le Développement
2018-2021
Institut Agro Montpellier
2018-2021
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2020-2021
L'Institut Agro
2021
Gouvernance, Risque, Environnement, Développement
2011
Abstract The desert locust is an agricultural pest that able to switch from a harmless solitarious stage, during recession periods, swarms of gregarious individuals disperse long distances and affect areas western Africa India outbreak periods. Large outbreaks have been recorded through centuries, the Food Agriculture Organization keeps long‐term, large‐scale monitoring survey database in area. However, there also much less known subspecies occupies limited area Southern Africa. We used...
Abstract Preventive control of desert locusts is based on monitoring recession areas to detect outbreaks. Remote sensing has been increasingly used in the preventive strategy. Soil moisture a major ecological driver locust populations but still missing current imagery toolkit for management. By means statistical analyses, combining field observations presence/absence and soil estimates at 1 km resolution from disaggregation algorithm, we assess potential help management locust. We observe...
Abstract BACKGROUND Preventive management of locust plagues works in some cases but still fails frequently. The role funding institution awareness was suggested as a potential facilitating factor for cyclic plagues. We designed multi‐agent system to represent the events plague development and with three levels: institution, national control unit field teams. A sensitivity analysis identified limits improvements system. RESULTS model generated through decrease awareness. could improve its...
Abstract BACKGROUND The spatial structure of locust outbreaks is a major aspect preventive management that relies on where survey teams have to be sent if they are react in time any upsurge. concentration areas propitious has been documented for many species. Areas fails collect information because insecurity or remoteness constitute other limits. We explored these conditions using spatially explicit multi‐agent model representing system. simulated field had limited no access and the...
To be efficient, locust swarm control must focus on the place where eggs are laid and hopper bands may appear. But swarms travel a lot among all places likely to host them, there is need predict which exactly they will fly. It then essential consider movement dynamics anticipate any displacement that lead further reproduction of swarms. Swarms mostly fly downwind sometimes upwind. We designed an agent-based model explore displacements depending direction wind possibility for realise upwind...
This study addresses geographic variation of body size and shape allele frequencies at 21 microsatellite loci in southern African populations the desert locust, Schistocercagregaria. These populations, which belong to subspecies S. g. flaviventris, lack capacity change phase swarm relative northern nominate subspecies, gregaria. We reported overall genetic morphological similarities among localities that cover most range. Of particular interest, level diversity was moderately lower than...
Abstract BACKGROUND A poorly organised risk management system may dysfunction when used. The consequences can be dramatic for those supposed to protected. Since the 1960s, preventive control strategies, with field officers as living memory, have been developed monitor locusts. Preserving their experience of past plagues is consequently essential. Wrong use knowledge disrupt whole chain. We explored these conditions using a multi‐agent model representing system. simulated how teams' tendency...
Le criquet pèlerin, Schistocerca gregaria Forskål, 1775, est un ravageur majeur pour l’agriculture. Affiner les connaissances sur sa distribution spatiale essentiel gestion préventive. Dans ce but, nous avons utilisé au Tchad une technique de lissage spatial densités 7014 observations du pèlerin (1965–1971 et 1986–2017) afin d’élaborer des cartes saisonnières répartition périodes d’invasion rémission. Trois zones correspondant à aires reproduction foyers grégarisation ont été identifiées :...
This paper summarizes eight years of field study on the Red Locust, Nomadacris septemfasciata (Serville) in southwestern Madagascar and presents management recommendations for its control. crop pest exhibits a fairly uniform annual life-cycle phenology southern Madagascar, which involves seasonal migration adult reproductive diapause. There is one generation/y. Eggs are laid at beginning rainy season November December. hatch 24–36 d, hatchlings reach adulthood 50–70 d. Fledgling adults enter...