A5080471699- Insect and Arachnid Ecology and Behavior
- Plant and animal studies
- Forest Insect Ecology and Management
- Botany and Plant Ecology Studies
- Insect and Pesticide Research
- Neurobiology and Insect Physiology Research
- Fern and Epiphyte Biology
- Plant Parasitism and Resistance
- Ecology and Vegetation Dynamics Studies
- Chemotherapy-related skin toxicity
- Animal and Plant Science Education
- Animal Behavior and Reproduction
- Environmental DNA in Biodiversity Studies
- Sustainable Industrial Ecology
- Species Distribution and Climate Change
- Cooperative Studies and Economics
- Insect Resistance and Genetics
- Plant Diversity and Evolution
- Chromosomal and Genetic Variations
- Aquatic Ecosystems and Phytoplankton Dynamics
- Sharing Economy and Platforms
- Lepidoptera: Biology and Taxonomy
- Plant Virus Research Studies
- Microbial Community Ecology and Physiology
- Urban Green Space and Health
AgroParisTech
2016-2024
Ecologie des Forêts de Guyane
2014-2024
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2020-2024
Centre de Coopération Internationale en Recherche Agronomique pour le Développement
2016-2024
Centre National de la Recherche Scientifique
2012-2024
University of French Guiana
2022
Université des Antilles
2022
Tropical rainforests are vital for global biogeochemical cycles and human well-being shelter a tremendous, unique, yet underexplored reservoir of biodiversity. With the increasing pressures they face, including deforestation, biological invasions, climate change, improving methods to monitor their biodiversity is now pressing societal demand. In recent years, amplification sequencing taxonomically-informative DNA fragments from environmental samples (i.e. eDNA) has revolutionised...
Abstract The major rDNA genes are composed of tandem repeats and part the nucleolus organizing regions (NORs). They highly conserved therefore useful in understanding evolutionary patterns chromosomal locations. dynamics karyotype may affect organization within chromosomes. In this study, we physically mapped 18S 13 Neotropical ant species from four subfamilies using fluorescence situ hybridization. Furthermore, a survey published cytogenetic data for 50 additional was performed, which...
Abstract Plant germination and development depend upon a seed's successful dispersal into suitable habitat its ability to grow survive within the surrounding biotic abiotic environment. The seeds of Aechmea mertensii , tank‐bromeliad species, are dispersed by either Camponotus femoratus or Neoponera goeldii two ant species that initiate gardens ( AG s). These mutualistic influence vegetative reproductive traits bromeliad through their divergent ecological preferences i.e . light substrate)....
Ants have evolved venoms rich in peptides and proteins used for predation, defense, communication. However, they remain extremely understudied due to the minimal amount of venom secreted by each ant. The present study investigated differences proteome peptidome from bullet ant, Paraponera clavata. Venom samples were collected a single colony either manual gland dissection or electrical stimulation compared using proteomic methods. separated 2D-PAGE identified nanoLC-ESI-QTOF MS/MS. initially...
Ants play essential roles in most terrestrial ecosystems and may be considered pests for agriculture agroforestry. Recent morphological molecular data have challenged conventional ant phylogeny the interpretation of karyotypic variations. Existing Neotropical cytogenetic focus on Atlantic rainforest species, provide evolutionary taxonomic insight. However, there are only 18 Amazonian species. In this study, we describe karyotypes 16 species belonging to 12 genera three subfamilies, collected...
Species engaged in multiple, simultaneous mutualisms are subject to trade-offs their mutualistic investment if the traits involved each interaction overlapping, which can lead conflicts and affect longevity of these associations. We investigate this issue via a tripartite mutualism involving an ant plant, two competing species fungus ants cultivate build galleries under stems host plant capture insect prey. The use represents innovative prey strategy compared with more typical foraging on...
Abstract Stinging ants have diversified into various ecological niches, and several evolutionary drivers may contributed to shape the composition of their venom. To comprehend underlying venom variation in ants, we selected 15 Neotropical species recorded a range traits, including ecology, morphology, bioactivity. Principal component analysis both morphological bioactivity traits revealed that stinging display two functional strategies. Additionally, phylogenetic comparative indicated...
Stinging ants have diversified into various ecological niches, and selective pressures may contributed to shape the composition of their venom. To explore drivers underlying venom variation in ants, we sampled 15 South American rainforest species recorded a range traits, including ecology, morphology bioactivities. Principal component analysis both morphological bioactivity traits reveals that stinging display two functional strategies where evolved towards either an exclusively offensive or...
à la diffusion de documents scientifiques niveau recherche, publiés ou non, émanant des établissements d'enseignement et recherche français étrangers, laboratoires publics privés.
The Neotropical understory plant Tachia guianensis (Gentianaceae)—known to shelter the colonies of several ant species in its hollow trunks and branches—does not provide them with food rewards (e.g., extrafloral nectar). We tested whether these ants are opportunistic nesters or mutualistic relationships exist as for myrmecophytes plants sheltering specialized structures exchange protection from enemies and/or nutrient provisioning (myrmecotrophy). noted 37 inside T. internodes, three...
In Amazonia higher Atlantic sea surface temperatures, greenhouse gasses, deforestation and El Niño events result in the greater frequency of severe droughts, although total rainfall has increased due to wetter rainy seasons, something confirmed French Guiana from available climatic data (1980–2017). Aiming study impact on ant gardens (i.e., arboreal ant-epiphyte mutualisms that depend atmosphere for water; AGs) initiated by ponerine Neoponera goeldii, we conducted surveys around Petit Saut...
From the Equator to subpolar areas, ants are very abundant, diverse, and ecologically dominant, occupying terrestrial environments from soil crowns of large trees. They appeared 158–139 million years ago (Mya) (i.e., end Jurassic, 201.3–145 Mya; early Cretaceous, 145–66 Mya) later diversified ground-dwelling predatory taxa, alongside rise angiosperms (Brady et al., 2006; Moreau 2006). About 130–125 Mya, while foraging for prey on vegetation, some ant species incorporated plant-based food...
To obtain a reliable description of spider communities, robust sampling protocols are crucial. However, it remains unclear if descriptions communities in tropical habitats require both day and night sampling. Here we tested whether high low vegetation strata would lead to better diversity estimates than at only one period the day. We determined taxonomic network 12 plots French Guiana along gradient. found alpha spiders as expected for area every site. showed strong differences beta between...