A5077712650- Plant and animal studies
- Ecology and Vegetation Dynamics Studies
- Species Distribution and Climate Change
- Evolutionary Game Theory and Cooperation
- Biological Control of Invasive Species
- Marine and coastal plant biology
- Evolution and Genetic Dynamics
- Liver Disease Diagnosis and Treatment
- Fern and Epiphyte Biology
- Date Palm Research Studies
- Insect-Plant Interactions and Control
- Data Analysis with R
- Freshwater macroinvertebrate diversity and ecology
- Plant Diversity and Evolution
- Alcohol Consumption and Health Effects
- Environmental DNA in Biodiversity Studies
- Insect and Arachnid Ecology and Behavior
- Scientific Computing and Data Management
- Animal Ecology and Behavior Studies
- Coral and Marine Ecosystems Studies
- Assistive Technology in Communication and Mobility
- Wildlife-Road Interactions and Conservation
- Potato Plant Research
- Graphite, nuclear technology, radiation studies
- Eicosanoids and Hypertension Pharmacology
Université de Sherbrooke
2021-2024
Fondation Pour la Recherche Sur la Biodiversité
2020-2022
Université de Montréal
2020-2021
Institut National Polytechnique de Toulouse
2020
Université Toulouse III - Paul Sabatier
2020
Laboratoire Écologie Fonctionnelle et Environnement
2020
Université de Toulouse
2020
University of British Columbia
2012-2020
Centre National de la Recherche Scientifique
2020
University of Toronto
1973-2010
Phylogenetic diversity (PD) describes the total amount of phylogenetic distance among species in a community. Although there has been substantial research on factors that determine community PD, exploration consequences PD for ecosystem functioning is just beginning. We argue may be useful predicting functions range communities, from single-trophic to complex networks. Many traits show signal, suggesting can estimate functional trait space community, and thus functioning. Phylogeny also...
Climate change and biodiversity loss are expected to simultaneously affect ecosystems, however research on how each driver mediates the effect of other has been limited in scope. The multiple stressor framework emphasizes non-additive effects, but may also buffer effects climate change, alter which mechanisms underlie biodiversity-function relationships. Here, we performed an experiment using tank bromeliad ecosystems test various ways that rainfall changes litter diversity jointly determine...
Abstract Ecological networks are increasingly studied at large spatial scales, expanding their focus from a conceptual tool for community ecology into one that also addresses questions in biogeography and macroecology. This effort is supported by increased access to standardized information on ecological networks, the form of openly accessible databases. Yet, there has been no systematic evaluation fitness purpose these data explore synthesis very scales. In particular, because sampling...
1. Liver slices from rats treated with thyroxine show an increased rate of O2 consumption. The extra consumption, but not the basal respiration, can be abolished by ouabain. 2. Dinitrophenol is effective in increasing consumption liver thyroxine-treated animals its effectiveness recovered presence 3. (Na++K+)-stimulated adenosine triphosphatase activity was administration vivo. No changes were found total Mg2+-stimulated activity. 4. Mitochondrial α-glycerophosphate dehydrogenase and...
Local habitat size has been shown to influence colonization and extinction processes of species in patchy environments. However, differ body size, mobility, trophic level, may not respond the same way size. Thus far, we have a limited understanding how influences structure multitrophic communities what extent effects be generalizable over broad geographic range. Here, used water-filled bromeliads different sizes as natural model system examine on their inhabiting invertebrate communities. We...
Abstract Functional traits are commonly used in predictive models that link environmental drivers and community structure to ecosystem functioning. A prerequisite is identify robust sets of continuous axes trait variation, understand the ecological evolutionary constraints result functional space occupied by interacting species. Despite their diversity role functioning, little known on invertebrate biotas entire biogeographic regions. We examined strategies underlying realized aquatic...
There is growing recognition that ecosystems may be more impacted by infrequent extreme climatic events than changes in mean conditions. This has led to calls for experiments explore the sensitivity of over broad ranges parameter space. However, because such response surface have so far been limited geographic and biological scope, it not clear if differences between studies reflect location or ecosystem component considered. In this study, we manipulated rainfall entering tank bromeliads...
Species distribution models (SDMs) have been widely used to project terrestrial species' responses climate change and are increasingly being for similar objectives in the marine realm. These projections critically needed develop strategies resource management conservation of ecosystems. SDMs a powerful necessary tool; however, they subject many sources uncertainty, both quantifiable unquantifiable. To ensure that SDM informative decisions, uncertainty must be considered properly addressed....
Climate change will alter the distribution of rainfall, with potential consequences for hydrological dynamics aquatic habitats. Hydrological stability can be an important determinant diversity in temporary habitats, affecting species persistence and importance predation on community dynamics. As such, prey are not only affected by drought-induced mortality but also risk [a non-consumptive effect (NCE)] actual consumption predators consumptive (CE)]. Climate-induced changes rainfall may...
As the science community has recognized vital role of communicating to public, communication training proliferated. The development rigorous, comparable approaches assessment not kept pace. We conducted a fully controlled experiment using semester-long course, and audience communicator performance. Evaluators scored competence trainees their matched, untrained controls, before after training. Bayesian analysis data showed very small gains in skills trainees, no difference from controls. High...
Abstract Accurate identification of agricultural pests is a major component integrated pest management. The seedcorn maggot, Delia platura (Meigen) (Diptera: Anthomyiidae), cosmopolitan polyphagous species that may be found in high numbers numerous crops. Two morphologically identical genetic lines D. (H and N) with distinct distributions were recently identified. To date, no study has investigated the reproductive compatibility two thus possibility they actually unique biological entities....
The Enemy Release Hypothesis predicts that exotic plants gain an advantage over native competitors by losing their natural enemies while invading new regions. However, this assumes those reduced the performance of these invaders in ranges, and may not be true if invader is highly tolerant herbivory. We used a field experiment to test herbivore tolerance North American annual, common ragweed (Ambrosia artemisiifolia L.), which known have lost insect herbivores Europe. clipped leaves simulate...
Abstract It has been argued that the mechanisms structuring ecological communities may be more generalizable when based on traits than species identities. If so, patterns in assembly of community‐level along environmental gradients should similar different places world. Alternatively, geographical change pool and regional variation climate might result site‐specific relationships between community local environments. These competing hypotheses are particularly untested for animal...
What leads to classically recognized patterns of biodiversity remains an open and contested question. It unknown if observed are generated by biological or non‐biological mechanisms, we should expect the emerge in systems. Here, employ analogies between GNU/Linux operating systems (distros), a system, biodiversity, look for number well‐established ecological evolutionary Linux universe. We demonstrate that universe generally match macroecological patterns. Particularly, distro commonness...
Abstract Animal community responses to extreme climate events can be predicted from the functional traits represented within communities. However, it is unclear whether geographic variation in response of structure change primarily driven by physiological matching local conditions (local adaptation hypothesis) or differences between species pools redundancy (insurance hypothesis). We conducted a coordinated experiment understand how aquatic invertebrate mediate multitrophic communities...
Functional traits determine an organism's performance in a given environment and as such which organisms will be found where. Species respond to local conditions, but also larger scale gradients, climate. Trait ecology links these responses of species community composition distributions. Yet, we often do not know environmental gradients are most important determining trait at either or biogeographical scales, their interaction. Here quantify the relative contribution climatic conditions...
Abstract Predicting the number of interactions that species in a food web will establish is an important task. These trophic underlie many ecological and evolutionary processes, ranging from biomass fluxes, ecosystem stability, resilience to extinction, resistance against novel species. We investigate compare several ways predict webs. conclude simple beta-binomial model outperforms other models, with added desirable property respecting biological constraints. show how this relationship...