A5063158797- Microbial Community Ecology and Physiology
- Environmental DNA in Biodiversity Studies
- Pharmaceutical and Antibiotic Environmental Impacts
- Pesticide and Herbicide Environmental Studies
- Aquatic Ecosystems and Phytoplankton Dynamics
- Fish Ecology and Management Studies
- Gut microbiota and health
- Marine and coastal ecosystems
- Antibiotic Resistance in Bacteria
- Environmental Toxicology and Ecotoxicology
- Evolution and Genetic Dynamics
- Physiological and biochemical adaptations
- Genomics and Phylogenetic Studies
- Ruminant Nutrition and Digestive Physiology
- Genetic diversity and population structure
- Protist diversity and phylogeny
- Identification and Quantification in Food
- Water Quality and Pollution Assessment
- Agroforestry and silvopastoral systems
- Plant Pathogens and Fungal Diseases
- Plant and fungal interactions
- Plant Taxonomy and Phylogenetics
- CRISPR and Genetic Engineering
- Fungal Biology and Applications
- Genetically Modified Organisms Research
Université de Montréal
2018-2025
Institut National de la Recherche Scientifique
2023-2024
GDG Environnement
2021-2022
Universidade Federal de Minas Gerais
2016-2021
Laboratoire Interuniversitaire de Biologie de la Motricité
2020
Institute for Biodiversity
2020
Accurately identifying the species present in an ecosystem is vital to lake managers and successful bioassessment programs. This particularly important when monitoring cyanobacteria, as numerous taxa produce toxins can have major negative impacts on aquatic ecosystems. Increasingly, DNA-based techniques such metabarcoding are being used for measuring biodiversity, they could accelerate processing time, decrease costs reduce some of biases associated with traditional light microscopy. Despite...
Agrochemicals often contaminate freshwater bodies, affecting microbial communities that underlie aquatic food webs. For example, the herbicide glyphosate has potential to indirectly select for antibiotic-resistant bacteria. Such cross-selection could occur if same genes (encoding efflux pumps, example) confer resistance both and antibiotics. To test cross-resistance in natural bacterial communities, we added a glyphosate-based (GBH) 1,000-liter mesocosms filled with water from pristine lake....
ABSTRACT The biodiversity of freshwater ecosystems globally is facing severe threats due to various anthropogenic stressors, such as habitat degradation, introduction invasive species, and pollution. Assessing the effects human‐induced environmental stressors on population community persistence requires accurate estimates. While DNA (eDNA) metabarcoding has emerged a promising tool, its effectiveness in capturing rapid responses acute across levels biological organization (community,...
Shallow alkaline saline lakes are often found in the Brazilian Pantanal and although their extreme conditions adverse to many phytoplankton organisms, they may support growth of dense cyanobacterial blooms. Here, we tested hypothesis reduced diversity these stressful environments, investigating changes between rainy dry periods analyzed which methodology would be best suited assess this community. The cyanobacteria were studied three at time periods, using morphological (microscopy)...
Biodiversity loss has accelerated over the past century and freshwater species overall are among those experiencing greatest declines. Genetic resources have potential to help evaluate full magnitude of this represent a key tool effectively allocate conservation monitor success restoration efforts. The power genetic will be realized when daunting task referencing all DNA sequences organisms is complete. Here, we quantified availability distribution barcode genome data for macroscopic in...
Anthropogenic environmental change is causing habitat deterioration at unprecedented rates in freshwater ecosystems. Despite increasing more rapidly than many other agents of global change, synthetic chemical pollution-including agrochemicals such as pesticides-has received relatively little attention community and ecosystem ecology. Determining the combined effects multiple on complex biological systems remains a major challenge, requiring cross-field integration ecology ecotoxicology....
Abstract Agricultural pollution with fertilizers and pesticides is a common disturbance to freshwater biodiversity. Bacterioplankton communities are at the base of aquatic food webs, but their responses these potentially interacting stressors rarely explored. To test extent resistance resilience in bacterioplankton faced agricultural stressors, we exposed mesocosms single combined gradients two commonly used pesticides: herbicide glyphosate (0–15 mg/L) neonicotinoid insecticide imidacloprid...
Our decreasing ability to fight bacterial infections is a major health concern. It arising due the evolution of antimicrobial resistance (AMR) in response mis- and overuse antibiotics both human veterinary medicine. Lakes integrate watershed processes thus may act as receptors reservoirs antibiotic genes (ARGs) introduced into by activities. The resistome - diversity ARGs under varying anthropogenic pressures has been previously studied either focused on few select or lakes. Here, we link...
With the increasing occurrence and severity of cyanobacterial harmful algal blooms (cHAB) at global scale, there is an urgent need for rapid, accurate, accessible, cost-effective detection tools. Here, we detail RosHAB workflow, innovative, in-the-field applicable genomics approach real-time, early cHAB outbreaks. We present how proposed workflow offers consistent taxonomic identification water samples in comparison to traditional microscopic analyses a few hours discuss generated data can...
Bacterial populations evolve rapidly in the lab when faced with experimentally-applied selective pressures. Yet how bacteria nature, more complex multi-species communities, is both challenging to study and essential our understanding of ecosystem responses rapid anthropogenic change. It has been theorized that selection purges within-species diversity genome-wide sweeps, but prevalence such sweeps response known pressures nature remains unclear. To track bacterial evolution a semi-natural...
Summary Environmental stress caused by anthropogenic impacts is increasing worldwide. Understanding the ecological and evolutionary consequences for biodiversity will be crucial our ability to respond effectively. Historical exposure environmental expected select resistant species, shifting community composition towards more stress-tolerant taxa. Concurrent with this species sorting process, genotypes within taxa that have highest relative fitness under severe are increase in frequency,...
Abstract Anthropogenic environmental change is causing habitat deterioration at unprecedented rates in freshwater ecosystems. Despite increasing more rapidly than other agents of global change, synthetic chemical pollution –including agrochemicals such as pesticides– has received relatively little attention biotic assessments. Determining the effects multiple on complex community and ecosystem properties remains a major challenge, requiring cross-field integration ecology ecotoxicology....
Just like doctors measure body temperature to detect fever, limnologists use a lake's trophic status as “thermometer” assess its health. The richer in nutrients lake is, the more likely it is develop algal or cyanobacterial blooms and, consequently, worse water quality. Limnologists have known for long time that agricultural runoff can lead eutrophication. What surprising we are now detecting otherwise pristine lakes, located far from human-impacted areas. A remarkable example of this 2014...
Abstract Lakes play a pivotal role in ecological and biogeochemical processes have been described as ‘sentinels’ of environmental change. Assessing ‘lake health’ across large geographic scales is critical to predict the stability their ecosystem services vulnerability anthropogenic disturbances. The LakePulse research network tasked with assessment lake health gradients land use on continental scale. Bacterial communities are an integral rapidly responding component ecosystems, yet...
Abstract Agricultural pollution with fertilizers and pesticides is a common disturbance to freshwater biodiversity. Bacterioplankton communities are at the base of aquatic food webs, but their responses these potentially interacting stressors rarely explored. To test extent resistance resilience in bacterioplankton faced agricultural stressors, we exposed mesocosms single combined gradients two commonly used pesticides: herbicide glyphosate (0-15 mg/L) neonicotinoid insecticide imidacloprid...
Abstract Our decreasing ability to fight bacterial infections is a major health concern. It arising due the evolution of antimicrobial resistance (AMR) in response mis- and overuse antibiotics both human veterinary medicine. Lakes integrate watershed processes thus may act as receptors reservoirs antibiotic genes (ARGs) introduced into by activities. The resistome - diversity ARGs – under varying anthropogenic pressures has been previously studied either focused on few select or lakes. Here,...