A5089138668- Insect behavior and control techniques
- Plant and animal studies
- Insect-Plant Interactions and Control
- Insect Pest Control Strategies
- Banana Cultivation and Research
- Forest Insect Ecology and Management
- Cassava research and cyanide
- Insect Resistance and Genetics
- Biological Control of Invasive Species
- Nematode management and characterization studies
- Ecology and Vegetation Dynamics Studies
- Isotope Analysis in Ecology
- Insect and Pesticide Research
- Agriculture and Rural Development Research
- African Botany and Ecology Studies
- Animal Ecology and Behavior Studies
- Insect Utilization and Effects
- Insect and Arachnid Ecology and Behavior
- Neurobiology and Insect Physiology Research
- Marine Biology and Ecology Research
- Entomopathogenic Microorganisms in Pest Control
- Land Use and Ecosystem Services
- Agricultural pest management studies
- Date Palm Research Studies
- Microbial Community Ecology and Physiology
University of New Caledonia
2022-2025
Peuplements végétaux et bioagresseurs en milieu tropical
2004-2024
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2024
Centre de Coopération Internationale en Recherche Agronomique pour le Développement
2011-2022
Agropolis International
2022
IAC (United States)
2020-2021
Institut National de la Recherche Agronomique du Niger
2017
Centre Hospitalier Universitaire de Martinique
2009-2013
Fonctionnement et Conduite des Systèmes de Culture Tropicaux et Méditerranéens
2009-2011
University of Reunion Island
2010
Deciphering invasion routes from molecular data is crucial to understanding biological invasions, including identifying bottlenecks in population size and admixture among distinct populations. Here, we unravel the of invasive pest Drosophila suzukii using a multi-locus microsatellite dataset (25 loci on 23 worldwide sampling locations). To do this, use approximate Bayesian computation (ABC), which has improved reconstruction routes, but can be computationally expensive. We our study...
Abstract Fruit flies (Diptera: Tephritidae) are the most damaging pests on fruit crops Réunion Island, near Madagascar. Survival and development of Mediterranean fly, Ceratitis capitata (Wiedemann), Natal C. rosa Karsch Mascarenes catoirii Guérin-Mèneville were compared at five constant temperatures spanning 15 to 35°C. Durations immature stages , C ranged from 14.5–63.8, 18.8–65.7 16.8–65.8 days, respectively, 30–15°C. The lower developmental threshold thermal calculated using temperature...
Summary Biological invasions have profound effects on community structure. The composition following can be influenced by the habitat diversity and species’ responses to abiotic factors. We evaluated tolerance climatic factors analysed field distribution of four polyphagous fruit flies (Diptera: Tephritidae) La Réunion Island (three exotic species that successively invaded island endemic Ceratitis catoirii ) in order evaluate opportunities coexistence niche differentiation. Atmospheric...
Plant diversification using cover crops may promote natural regulation of agricultural pests by supporting alternative prey that enable the increase arthropod predator densities. However, changes in specific composition diet induced cropping are poorly understood. Here, we hypothesized crop can significantly alter predators agroecosystems. The Brachiaria decumbens is increasingly used banana plantations to control weeds and improve physical soil properties. In this paper, a DNA metabarcoding...
Phytophagous insects differ in their degree of specialisation on host plants, and range from strictly monophagous species that can develop only one plant to extremely polyphagous hundreds many families. Nutritional compounds fruits affect several larval traits may be related adult fitness. In this study, we determined the relationship between fruit nutrient composition seven eight tephritid present La Réunion; these are known have very different ranges natura. laboratory, survival,...
Understanding the strength and modes of interspecific interactions between introduced resident species (native or previously introduced) is necessary to predict invasion success. We evaluated different mechanisms competition among four polyphagous fruit flies (Diptera: Tephritidae) from island La Réunion: one endemic species, Ceratitis catoirii, three exotic C. capitata, rosa, Bactrocera zonata, that have successively invaded island. Larval experiments, i.e., co-infestations same fruit,...
An abstract is not available for this content so a preview has been provided. Please use the Get access link above information on how to content.
ABSTRACT Invasive species are often said to be r ‐selected. However, invaders must sometimes compete with related resident species. In this case should present combinations of life‐history traits that give them higher competitive ability than residents, even at the expense lower colonization ability. We test prediction by comparing among four fruit fly species, one endemic and three successive invaders, in La Réunion Island. Recent tend produce fewer, but larger, juveniles, delay onset...
In most phytophagous insects, larvae are less mobile than adults and their fitness depends on the plant chosen by mother. To maximize fitness, adult preference larval performance should thus be correlated. This correlation is not always apparent seems to increase with level of specialisation, i.e. specialists have a stronger for high quality host species compared generalists. The aim this study was test whether relationship between female generalists within community fruit flies (Diptera:...
On Reunion Island, two species of Dacini, Bactrocera cucurbitae (Coquillett) and Dacus ciliatus Loew, infest 16 host plant belonging to the family Cucurbitaceae from sea level 1,600 m. These represent primary pests this on island. Melon fly, cucurbitae, Ethiopian fruit D. ciliatus, larval development was studied at four different constant temperatures (15, 20, 25, 30 degrees C) with three plants (cucumber, pumpkin, squash). Adult life histories these were 25 C plants. The results led...
Abstract The invasion of an established community by new species can trigger changes in structure. Invasions often occur phytophagous insect communities, the dynamics which are driven structure host assemblage and presence competitors. In this study, we investigated how a through successive invasions changed over time, taking last as reference. included four generalist specialist Tephritidae fruit flies. We analyzed long‐term database recording observed numbers flies per for each on 36...
Abstract For control of the M editerranean fruit fly C eratitis capitata ( D iptera: T ephritidae), attract‐and‐kill or attracticide technique is an alternative to spraying traditional organophosphate pesticides. In this study, effectiveness eranock and AAL & K bait stations was assessed for . in unisian peach P runus persica ) orchards. Our results showed that, orchards with early‐ripening varieties, numbers males damage were significantly lower plots treated than conventional...
Abstract 1. Biological invasions bring together formerly isolated insect taxa and allow the study of ecological interactions between species with no coevolutionary history. Among polyphagous insects, such may competitively exclude each other unless some form niche partitioning allows them to coexist. 2. In present study, we investigate whether ability exploit different fruits can increase likelihood coexistence four Tephritidae, one endemic three successive invaders, in island La Réunion....
On Reunion Island, two species of Dacini, Bactrocera cucurbitae (Coquillett) and Dacus ciliatus Loew, infest 16 host plant belonging to the family Cucurbitaceae from sea level 1,600 m. These represent primary pests this on island. Melon fly, cucurbitae, Ethiopian fruit D. ciliatus, larval development was studied at four different constant temperatures (15, 20, 25, 30°C) with three plants (cucumber, pumpkin, squash). Adult life histories these were 25°C plants. The results led conclusion that...
To control bacterial wilt (Ralstonia solanacearum, phylotype IIB/4NPB), the antimicrobial effect of Allium fistulosum aqueous extract was assessed as a preplant soil treatment. Three concentrations (100, 50, and 25%, 1:1 [wt/vol]) were evaluated by in vitro inhibition assay vivo experiments growth chamber. In vitro, A. (100 50%) suppressed R. solanacearum. Preplant treatment with significantly reduced solanacearum populations. No pathogen detected after 100% concentrated from third day...
Primary resources may affect the structure of species assemblages in upper trophic levels food webs. These bottom‐up effects involve important ecological processes that pest control. For example, population densities natural enemies increase when alternative preys are favoured by a new resource. Ants, particularly Solenopsis geminata Forel (Myrmicinae), recognized as effective predators herbivores eggs. In present study, we tested hypothesis addition primary resource banana agroecosystem...