Charlotte Mathieu results 26
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Widespread Underestimation of Drought Impacts on River Ecosystems Due to Weak Experimental DesignsNARA Subscribed
Hydrologic droughts are intensifying globally due to climate change and human water demand. Although a myriad of drought impacts on river ecosystems have been described, manipulative experiments on the topic have often yielded inconclusive or inconsistent results. Here, we investigated to what extent this inconsistency could be due to uncontrolled variation in methodological choices, or to variation in how different ecological...
Prolonged low flows and non‐native fish operate additively to alter insect emergence in mountain streamsNARA Subscribed
Climate‐induced flow alteration is decreasing snowpack and advancing snowmelt, subjecting mountain streams to longer low‐flow periods. Yet, anticipating how stream ecosystems respond to prolonged low flows remains challenging because distinct trophic levels can respond differently, and non‐native predators can dampen or amplify responses. Here, we conducted a large‐scale mesocosm experiment to examine how early, prolonged low...
Impacts of Canopy Disturbances by Tree Logging on Soil Biota Increase With Organism SizeNARA Subscribed
Soil biota is essential for forest ecosystems' functioning as it plays a key role in litter decomposition, nutrient recycling, and soil carbon sequestration. Since forest disturbances can have major impacts on soil biota and associated ecosystem services, there is an urgent need to provide evidence on its ecological responses to such disturbances. To this end, we established an experimental site to study the impacts of disturb...
Organisms release and detect molecules for defense, reproduction, feeding strategies and finding suitable habitats. For some migratory species, homing behavior could be related to the recognition of their home chemical fingerprint made of an assemblage of molecules from their habitat. In the marine realm, the functioning of ecosystems such as underwater caves largely depends on trophic interactions between the caves and the ou...
Meta‐analysis reveals that the effects of precipitation change on soil and litter fauna in forests depend on body sizeNARA Subscribed
Anthropogenic climate change is altering precipitation regimes at a global scale. While precipitation changes have been linked to changes in the abundance and diversity of soil and litter invertebrate fauna in forests, general trends have remained elusive due to mixed results from primary studies. We used a meta‐analysis based on 430 comparisons from 38 primary studies to address associated knowledge gaps, (i) quantifying impa...
Outcome assessment of a complex mental health intervention in the workplace. Results from the MENTUPP pilot studyNARA Subscribed
Objective Multicomponent interventions are recommendable to achieve the greatest mental health benefits, but are difficult to evaluate due to their complexity. Defining long-term outcomes, arising from a Theory of Change (ToC) and testing them in a pilot phase, is a useful approach to plan a comprehensive and meaningful evaluation later on. This article reports on the pilot results of an outcome evaluation of a complex mental...
A longitudinal survey in the wild reveals major shifts in fish host microbiota after parasite infectionNARA Subscribed
Recent studies have highlighted associations between diseases and host microbiota. It remains extremely challenging – especially under natural conditions – to clarify whether host microbiota promote future infections, or whether changes in host microbiota result from infections. Nonetheless, deciphering between these two processes is essential for highlighting the role of microbes in disease progression. We longitudinally surv...