Publications by Constant Signarbieux

Lowland plant arrival in alpine ecosystems facilitates a decrease in soil carbon content under experimental climate warming

Alexandre Buttler, Pierre Rémi Mariotte, Konstantin Svetlozarov Gavazov, Constant Signarbieux, Thomas Guillaume

Climate warming is releasing carbon from soils around the world, constituting a positive climate feedback. Warming is also causing species to expand their ranges into new ecosystems. Yet, in most ecosystems, whether range expanding species will amplify or ...

eLIFE SCIENCES PUBL LTD2022

Cropping systems alter hydraulic traits of barley but not pea grown in mixture

Constant Signarbieux

Extreme events such as drought and heatwaves are among the biggest challenges to agricultural production and food security. However, the effects of cropping systems on drought resistance of arable crops via their hydraulic behaviour remain unclear. We inve ...

WILEY2021

Genetically Different Isolates of the Arbuscular Mycorrhizal Fungus Rhizophagus irregularis Induce Differential Responses to Stress in Cassava

Constant Signarbieux

Water scarcity negatively impacts global crop yields and climate change is expected to greatly increase the severity of future droughts. The use of arbuscular mycorrhizal fungi (AMF) can potentially mitigate the effects of water stress in plants. Cassava i ...

FRONTIERS MEDIA SA2020

Responses of plant leaf economic and hydraulic traits mediate the effects of early- and late-season drought on grassland productivity

Alexandre Buttler, Pierre Rémi Mariotte, Constant Signarbieux, Claire Emilie Deléglise, Amarante Vitra, Lia Aimée Marie-Joe Lamacque

Drought can occur at different times during the grassland growing season, likely having contrasting effects on forage production when happening early or later in the season. However, knowledge about the interacting effects of the timing of drought and the ...

Oxford University Press (OUP)2019

Effects of climate warming on Sphagnum photosynthesis in peatlands depend on peat moisture and species-specific anatomical traits

Constant Signarbieux, Vincent Eric Jules Jassey

Climate change will influence plant photosynthesis by altering patterns of temperature and precipitation, including their variability and seasonality. Both effects may be important for peatlands as the carbon (C) sink potential of these ecosystems depends ...

WILEY2019

Effects of Sphagnum Leachate on Competitive Sphagnum Microbiome Depend on Species and Time

Alexandre Buttler, Luca Bragazza, Constant Signarbieux, Vincent Eric Jules Jassey, Bjorn Jozef Maria Robroek, Samuel Thomas Gabriel Hamard

Plant specialized metabolites play an important role in soil carbon (C) and nutrient fluxes. Through anti-microbial effects, they can modulate microbial assemblages and associated microbial-driven processes, such as nutrient cycling, so to positively or ne ...

Frontiers Media SA2019

Plastic and genetic responses of a common sedge to warming have contrasting effects on carbon cycle processes

Luca Bragazza, Richard David Bardgett, Constant Signarbieux, Thomas William Nicholas Walker

Climate warming affects plant physiology through genetic adaptation and phenotypic plasticity, but little is known about how these mechanisms influence ecosystem processes. We used three elevation gradients and a reciprocal transplant experiment to show th ...

2019

Drought-induced decline of productivity in the dominant grassland species Lolium perenne L. depends on soil type and prevailing climatic conditions

Alexandre Buttler, Luca Bragazza, Pierre Rémi Mariotte, Konstantin Svetlozarov Gavazov, Géraldine Delphine Mercier, Constant Signarbieux, Amarante Vitra, Juan Carlos Quezada Rivera, Thomas Guillaume

2019

Fagopyrum esculentum Alters Its Root Exudation after Amaranthus retroflexus Recognition and Suppresses Weed Growth

Constant Signarbieux

2018

Global warming leads to more uniform spring phenology across elevations

Constant Signarbieux, Yann Vitasse

National Academy of Sciences2018

Vapor-pressure deficit and extreme climatic variables limit tree growth

Alexandre Buttler, María Paula Sanginés De Cárcer, Constant Signarbieux, Vincent Eric Jules Jassey, Yann Vitasse

2018

Responses of antinomic foliar traits to experimental climate forcing in beech and spruce saplings

Rodolphe Schlaepfer, Alexandre Buttler, María Paula Sanginés De Cárcer, Constant Signarbieux

Global warming is predicted to have a strong impact on mountain ecosystems. Subalpine sylvopastoral systems are very sensitive to climate change, which puts their future sustainability at stake. These ecosystems are mostly dominated by spruce and beech, an ...

Pergamon-Elsevier Science Ltd2017

Freeze-thaw cycles simultaneously decrease peatland photosynthetic carbon uptake and ecosystem respiration

Alexandre Buttler, Mariusz Lamentowicz, Robert Thomas Edmund Mills, Constant Signarbieux, Vincent Eric Jules Jassey, Bjorn Jozef Maria Robroek, Maaike Louise Hofsommer

Decreasing snow cover in winter resulting from climate warming increases the incidence of freeze-thaw cycles (FTCs) in many ecosystems, including peatlands. As peatland ecosystems form a globally significant long-term carbon storage, understanding the effe ...

Finnish Environment Inst2017

Asymmetric effects of cooler and warmer winters on beech phenology last beyond spring

Rodolphe Schlaepfer, Alexandre Buttler, María Paula Sanginés De Cárcer, Constant Signarbieux, Ester Toledano Díaz, Yann Vitasse

In temperate trees, the timings of plant growth onset and cessation affect biogeochemical cycles, water, and energy balance. Currently, phenological studies largely focus on specific phenophases and on their responses to warming. How differently spring phe ...

Wiley2017

Response to Editor to the comment by Delarue (2016) to our paper entitled “Persistent high temperature and low precipitation reduce peat carbon accumulation”

Alexandre Buttler, Luca Bragazza, Constant Signarbieux, Vincent Eric Jules Jassey, Bjorn Jozef Maria Robroek, Remy Jean Henry Albrecht

2017

Herbaceous Angiosperms Are Not More Vulnerable to Drought-Induced Embolism Than Angiosperm Trees

Alexandre Buttler, Constant Signarbieux, Hervé Cochard

The water transport pipeline in herbs is assumed to be more vulnerable to drought than in trees due to the formation of frequent embolisms (gas bubbles), which could be removed by the occurrence of root pressure, especially in grasses. Here, we studied hyd ...

Amer Soc Plant Biologists2016

Loss of testate amoeba functional diversity with increasing frost intensity across a continental gradient reduces microbial activity in peatlands

Alexandre Buttler, Luca Bragazza, Mariusz Lamentowicz, Robert Thomas Edmund Mills, Constant Signarbieux, Vincent Eric Jules Jassey, Bjorn Jozef Maria Robroek, Maaike Louise Hofsommer

Soil microbial communities significantly contribute to global fluxes of nutrients and carbon. Their response to climate change, including winter warming, is expected to modify these processes through direct effects on microbial functions due to osmotic str ...

Elsevier2016

Persistent high temperature and low precipitation reduce peat carbon accumulation

Alexandre Buttler, Luca Bragazza, Constant Signarbieux, Vincent Eric Jules Jassey, Bjorn Jozef Maria Robroek, Remy Jean Henry Albrecht

Extreme climate events are predicted to become more frequent and intense. Their ecological impacts, particularly on carbon cycling, can differ in relation to ecosystem sensitivity. Peatlands, being characterized by peat accumulation under waterlogged condi ...

Wiley-Blackwell2016

The effect of warmer or cooler winters on European beech phenology carries over the phenophases of next growing season

Constant Signarbieux

Phenology of trees of temperate regions has become an important research topic for global change issues over the last two decades because of its major role in regulating ecosystems processes such as carbon cycle and species interactions. While spring pheno ...

2015

Transient response of Salix cuttings to changing water level regimes

Alexandre Buttler, Pascal Turberg, Paolo Perona, Lorenzo Gorla, Constant Signarbieux

Sustainable water management requires an understanding of the effects of flow regulation on riparian ecomorphological processes. We investigated the transient response of Salix viminalis by examining the effect of water-level regimes on its above-ground an ...

American Geophysical Union2015