A5058824834- Plant and animal studies
- Plant Parasitism and Resistance
- Ecology and Vegetation Dynamics Studies
- Agriculture and Rural Development Research
- Phytochemistry and biological activities of Ficus species
- Insect and Arachnid Ecology and Behavior
- Plant Diversity and Evolution
- African Botany and Ecology Studies
- French Urban and Social Studies
- Insect-Plant Interactions and Control
- Insect and Pesticide Research
- Aging, Elder Care, and Social Issues
- Genetic diversity and population structure
- Animal Behavior and Reproduction
- Insect Pest Control Strategies
- Plant Reproductive Biology
- Photovoltaic Systems and Sustainability
- Insect Pheromone Research and Control
- Plant biochemistry and biosynthesis
- Plant and Fungal Species Descriptions
- Primate Behavior and Ecology
- Banana Cultivation and Research
- Insect Resistance and Genetics
- Plant Physiology and Cultivation Studies
- Genetic and Environmental Crop Studies
Centre d'Écologie Fonctionnelle et Évolutive
2014-2024
Centre National de la Recherche Scientifique
2011-2024
École Pratique des Hautes Études
2016-2024
Université de Montpellier
2012-2024
Institut de Recherche pour le Développement
2021-2024
Institut d'écologie et des sciences de l'environnement de Paris
2024
Laboratoire de Chimie
2021
Université Paul-Valéry Montpellier
2016-2018
University of Miami
1991-1996
University of Arizona
1995
It is thought that speciation in phytophagous insects often due to colonization of novel host plants, because radiations plant and insect lineages are typically asynchronous. Recent phylogenetic comparisons have supported this model diversification for both herbivores specialized pollinators. An exceptional case where contemporaneous plant-insect might be expected the obligate mutualism between fig trees (Ficus species, Moraceae) their pollinating wasps (Agaonidae, Hymenoptera). The ubiquity...
Theory predicts that colonization of new areas will be associated with population bottlenecks reduce within-population genetic diversity and increase differentiation among populations. This should especially true for weedy plant species, which are often characterized by self-compatible breeding systems vegetative propagation. To test this prediction, to evaluate alternative scenarios the history introduction, Rubus alceifolius was studied amplified fragment length polymorphism (AFLP) markers...
Abstract In several highly specialized plant-insect interactions, scent-mediated specificity of pollinator attraction is directed by the emission and detection volatile organic compounds (VOCs). Although some plants engaged in such interactions emit singular compounds, others mixtures VOCs commonly emitted plants. We investigated chemical ecological bases host plant recognition nursery pollination mutualism between dioecious Ficus carica its specific Blastophaga psenes . Using Y-tube...
Over the last decade, paternity analysis using molecular markers has revealed that observed mating systems do not necessarily correlate with reproductive and thus cannot provide reliable information about male success (RS). This is especially true for primate species a complex multimale-multifemale social organization, such as mandrills (Mandrillus sphinx). Using measurement of individual RS comprehensive data set comprising 193 offspring from 27 birth cohorts over 20-year period sampling,...
1 In the nursery pollination system of figs (Ficus, Moraceae), flower-bearing receptacles called syconia breed pollinating wasps and are units both seed dispersal. Pollinators mammalian dispersers attracted to by volatile organic compounds (VOCs). monoecious figs, produce seeds, while in (gyno)dioecious male (gall) fig trees female (seed) seeds. 2 VOCs were collected using dynamic headspace adsorption methods on freshly from different Super Q® collection traps. VOC profiles determined gas...
Combining biogeographic, ecological, morphological, molecular and chemical data, we document departure from strict specialization in the fig-pollinating wasp mutualism. We show that pollinating wasps Elisabethiella stuckenbergi socotrensis form a species complex of five lineages East Southern Africa. Up to two morphologically distinct were found co-occur locally southern African region. Wasps belonging single lineage frequently main regional pollinators several Ficus species. In South...
Interspecific interactions have long been assumed to play an important role in diversification. Mutualistic interactions, such as nursery pollination mutualisms, proposed good candidates for diversification through co-speciation because of their intricate nature. However, little is known about how speciation and proceeds emblematic systems figs fig wasps. Here, we analyse connection with spatial structuring the obligate mutualistic association between Ficus septica its pollinating wasps...
Concentration of air pollutants, particularly ozone (O3), has dramatically increased since pre-industrial times in the troposphere. Due to strong oxidative potential O3, negative effects on both emission and lifetime atmosphere plant volatile organic compounds (VOCs) have already been highlighted. VOCs alteration by O3 may potentially affect attraction pollinators that rely these chemical signals. Surprisingly, direct olfaction behavioral response not investigated so far. We developed a...
The Sahel is among the world's regions most affected by ecosystem degradation, caused intensive land use and climate change. importance of conserving biotic interactions increasingly recognised in actions that attempt to counter reverse this such as Great Green Wall initiative northern Sahel. Interactions between flowers flower-visiting insects play central roles functioning, ensuring pollination. Floral resources are also crucial for numerous other interactions, them fuel their search prey,...
Abstract In pollination mutualisms, floral odours are signals advertising the presence and location of rewards. However, in case dwarf palm ( Chamaerops humilis ) its species‐specific pollinating weevil Derelomus chamaeropsis ), rewards advertisements spatially separated. Flowers provide their specific pollinators with food sites for both egg laying larval development, but do not advertise them or visually conspicuous petals. Insect behavioural bioassays revealed that attracted by scents...
In plant species with an obligate species‐specific pollinator, gamete encounter is a critical phase in the success of reproductive strategies. One key factors encounter, length female receptivity, has been rarely studied experimentally. Ficus (Moraceae), each exclusively associated its specific pollinating wasp, receptive individual syconia was believed to last only few days. This estimate, based on field observations pollinator arrivals, neglected possibility that unpollinated may remain...
Abstract In nursery pollination mutualisms, where pollinators reproduce within the inflorescence they pollinate, floral scents often play a major role in advertizing host location and rewards for pollinator. However, chemical messages emitted by plant that are responsible encounter of mutualist partners can also be used parasites these mutualisms to locate their host. Each species Ficus (Moraceae) is involved an obligatory mutualism with usually one pollinating fig wasp (Hymenoptera:...
High specificity in the Ficus-agaonid wasp mutualism has lead to assumption of a mostly 'one-to-one' relationship, albeit with some exceptions. This view been challenged by new molecular data recent years, but surprisingly little is known about local and spatial genetic structuring agaonid populations. Using microsatellite markers, we analysed Ceratosolen fusciceps, fig pollinating Ficus racemosa, tree species widely distributed from India Australia. In sampling stretching south China...