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Articles by Michael Bahn
Biodiversity buffers forest ecosystems from compound climate extremes
Abstract Forest ecosystems provide key ecological, social, and climate benefits, yet their functions are potentially threatened by rising compound extremes characterised by simultaneous heat and drought or moisture excess. Here, we explore how forests resist and recover from compound heat and moisture extremes and how tree diversity mediates these responses, using U.S. forest inventory data along with satellite-based stability estimates.
Synergistic effects of warming and elevated CO 2 intensify drought impacts on grassland carbon and water fluxes
Abstract INTRODUCTION RESULTS DISCUSSION MATERIALS AND METHODS Acknowledgments Supplementary Materials REFERENCES Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Understanding how rising carbon dioxide (CO2), climate warming, and drought interact to alter ecosystem functioning is critical for predicting future ecosystem resilience and land-atmosphere feedbacks.
Warming, elevated CO2 and drought in combination accelerates plant phenological shifts in managed montane grassland
1 INTRODUCTION Phenology refers to the timing of recurring biological events and how these timings are influenced by environmental factors, such as climate and interact among the developmental phases across or within species (Lieth, 1974). Phenology is not restricted solely to life cycle events, but also includes the responses of plant developmental stages to environmental forcing (Richardson et al., 2013).
Recurrent drought amplifies drought impacts and increases seasonal synchrony in mountain grassland communities
Global Change Factors differentially impact Floral and Leaf Economic Traits
Abstract Background and Aims: Since the Industrial Revolution, rising atmospheric CO₂, warming, and more frequent droughts have significantly impacted ecosystems. While the response of leaf functional traits to these global change factors have been widely studied, reproductive traits remain relatively understudied, despite their key role in the diversification and distribution of flowering plants.
Soil fungi remain active and invest in storage compounds during drought independent of future climate conditions - Nature Communications
Abstract Microbial growth is central to soil carbon cycling. However, how microbial communities grow under climate change is still largely unexplored. Here we use a unique field experiment simulating future climate conditions (increased atmospheric CO2 and temperature) and drought concomitantly and investigate impacts on soil microbial activity.
Recurrent drought increases grassland community seasonal synchrony
Abstract 1. Climate change increases the frequency and severity of drought events with strong repercussions on grassland ecosystems. While the effects of single drought events on ecosystem structure and functioning are well understood, it is largely unknown whether and how drought frequency modifies ecosystem responses to drought. 2. Here, we assessed how the increase in frequency of severe, annual summer drought impacted grassland communities.
Recurrent drought increases grassland community seasonal synchrony
Abstract Climate change leads to an increase in the frequency and severity of drought events with strong repercussions on grassland ecosystems. While the effects of single drought events on ecosystem structure and functioning are well understood, it is largely unknown whether and how drought frequency modifies ecosystem responses to drought. Here, we assessed how the increase in frequency of severe, annual summer drought affected grassland communities.
Microbial growth under drought is confined to distinct taxa and modified by potential future climate conditions - Nature Communications
Abstract Climate change increases the frequency and intensity of drought events, affecting soil functions including carbon sequestration and nutrient cycling, which are driven by growing microorganisms. Yet we know little about microbial responses to drought due to methodological limitations.
Leaf-level coordination principles propagate to the ecosystem scale - Nature Communications
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Abstract Fundamental axes of variation in plant traits result from trade-offs between costs and benefits of resource-use strategies at the leaf scale. However, it is unclear whether similar trade-offs propagate to the ecosystem level.
By Jens Kattge, Jacob Nelson, Christian Wirth, Michael Bahn, Mirela Beloiu, T. Black, Hans Henrik Bruun, Nina Buchmann, Chaeho Byun, Arnaud Carrara, Adriano Mosca Conte, Gregory Duveiller, Silvano Fares, Alexander Knohl, Miguel D. Mahecha, Akira Mori, Josep Peñuelas, Peter B. Reich, Sophia Walther, Ian Wright, Ulisse Gomarasca, Richard Nair, M. Altaf Arain, Solveig Franziska Bucher, Andreas Ibrom, Leonardo Montagnani, Yusuke Onoda, Oscar Perez-Priego, Georg Wohlfahrt
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Nature
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Field experiments underestimate aboveground biomass response to drought - Nature Ecology & Evolution
Abstract Researchers use both experiments and observations to study the impacts of climate change on ecosystems, but results from these contrasting approaches have not been systematically compared for droughts. Using a meta-analysis and accounting for potential confounding factors, we demonstrate that aboveground biomass responded only about half as much to experimentally imposed drought events as to natural droughts.
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