A5024657310- Seismic Waves and Analysis
- Earthquake Detection and Analysis
- Microbial Community Ecology and Physiology
- Gut microbiota and health
- Soil Carbon and Nitrogen Dynamics
- Isotope Analysis in Ecology
- Genomics and Phylogenetic Studies
- Methane Hydrates and Related Phenomena
- Coastal wetland ecosystem dynamics
- Wastewater Treatment and Nitrogen Removal
- Mycorrhizal Fungi and Plant Interactions
- Environmental DNA in Biodiversity Studies
- Evolution and Genetic Dynamics
- Plant-Microbe Interactions and Immunity
- Legume Nitrogen Fixing Symbiosis
- Plant Pathogens and Fungal Diseases
- Geophysics and Gravity Measurements
- Plant Water Relations and Carbon Dynamics
- Ionosphere and magnetosphere dynamics
- Polar Research and Ecology
- Ecology and Vegetation Dynamics Studies
- Atmospheric and Environmental Gas Dynamics
- Peatlands and Wetlands Ecology
- Conservation Techniques and Studies
- Plant Taxonomy and Phylogenetics
University of Sheffield
2025
Pacific Northwest National Laboratory
2021-2024
Northern Arizona University
2019-2023
University of Mississippi
2015-2020
Abstract Study of life history strategies may help predict the performance microorganisms in nature by organizing complexity microbial communities into groups organisms with similar strategies. Here, we tested extent that one common application theory, copiotroph-oligotroph framework, could relative population growth rate bacterial taxa soils from four different ecosystems. We measured change situ to added glucose and ammonium using both 18O–H2O 13C quantitative stable isotope probing test...
Climate change increases the frequency and intensity of drought events, affecting soil functions including carbon sequestration nutrient cycling, which are driven by growing microorganisms. Yet we know little about microbial responses to due methodological limitations. Here, estimate growth rates in montane grassland soils exposed ambient conditions, drought, potential future climate conditions (i.e., 6 years elevated temperatures CO2 levels). For this purpose, combined 18O-water vapor...
Abstract Nutrient amendment diminished bacterial functional diversity, consolidating carbon flow through fewer taxa. Here, we show strong differences in the taxa responsible for respiration from four ecosystems, indicating potential taxon-specific control over soil cycling. Trends defined as richness of bacteria contributing to flux and their equitability use, paralleled trends taxonomic diversity although was lower overall. Among genera common all Bradyrhizobium , Acidobacteria genus RB41...
Predation structures food webs, influences energy flow, and alters rates pathways of nutrient cycling through ecosystems, effects that are well documented for macroscopic predators. In the microbial world, predatory bacteria common, yet little is known about their growth roles in flows part because these difficult to quantify. Here, we show carbon uptake were higher compared nonpredatory bacteria, a finding across 15 sites, synthesizing 82 experiments over 100,000 taxon-specific measurements...
Abstract Secondary minerals (clays and metal oxides) are important components of the soil matrix. Clay affect carbon persistence cycling, they also select for distinct microbial communities. Here we show that mineral assemblages—particularly short-range order minerals—affect both bacterial community composition taxon-specific growth. Three soils with different parent material presence were collected from ecosystems similar vegetation climate. These three provided 18O-labeled water incubated...
Plants harbor a diverse microbiome existing as bacterial populations on the leaf surface (the phyllosphere) and within plant tissues (endophytes). The composition of this has been largely unexplored in fresh produce vegetables, where studies have tended to focus pathogen detection survival. However, application next-generation 16S rRNA gene sequencing approaches is beginning reveal diversity produce-associated community. In article we review what known about placing it context general...
Abstract Predicting ecosystem function is critical to assess and mitigate the impacts of climate change. Quantitative predictions microbially mediated processes are typically uninformed by microbial biodiversity. Yet new tools allow measurement taxon-specific traits within natural communities. There mounting evidence a phylogenetic signal in these traits, which may support prediction microbiome management frameworks. We investigated phylogeny-based trait using bacterial growth rates from...
Growing bacteria, alongside fungi, are the productive core of soil microbiome. They assimilate organic matter and drive biogeochemical transformations. While recent evidence suggests that large parts bacterial community transcriptionally or translationally active, only a subset bacteria actively divides at any given time. However, proportion dividing their responses to environmental change remain poorly understood.Using more than 76,000 taxon-specific growth estimates inferred by...
At the Ballidon experiment, one of longest running glass durability studies, modern and simulant archaeological glasses were buried in mildly alkaline, under-saturated, conditions for 52 years. Glass surfaces analysed to determine extent mechanisms alteration. Alteration layer chemistry was complex included Ca from surrounding limestone sediment P porewater resulting Ca, Pb Fe-phosphate rich phases interspersed with Si Al regions. There evidence ongoing evolution alteration structure due...
Temperate deciduous forest understoreys are experiencing widespread changes in community composition, concurrent with increases rates of nitrogen supply. These shifts plant abundance may be driven by interspecific differences nutrient foraging (i.e. conservative vs. acquisitive strategies) and, thus, adaptation to contemporary loading conditions. This study sought determine if could help explain patterns shrub success and decline eastern North American forests.Using plants grown a common...
The effect of rain on the phyllosphere community has not been extensively explored, especially in context spatial variation impact throughout tree canopy. We characterized response bacterial removed from leaf surfaces Southern Magnolia (Magnolia grandiflora) to across different locations hypothesized that: (i) would lead an initial decrease diversity, followed by increase diversity subsequent days, but that this be minimized lower and interior portion canopy, (ii) beta dispersion...
The growth rate of a microorganism is simple yet profound way to quantify its impact on the world. Microbial fitness in environment depends ability reproduce quickly when conditions are favorable and adopt survival physiology worsen, which cells coordinate by adjusting their rate. At population level, per capita sensitive metric fitness, linking reproduction ecology evolution populations. absolute microbial reflects rates resource assimilation, biomass production, element transformation,...
Abstract Microorganisms in soil assimilate, transform, and mineralize C to support growth. There are an estimated 2.6 × 10 29 microbial cells containing 26 Pg soils worldwide. Consequently, quantifying growth is critical for determining the degree which microorganisms contribute global cycle. Measuring taxonspecific enables understanding of contribution taxa elemental transformations across ecosystems their susceptibility environmental perturbations. These measurements have largely been...
Abstract Predation structures food webs, influences energy flow, and alters rates pathways of nutrient cycling through ecosystems, effects that are well documented for macroscopic predators. In the microbial world, predatory bacteria common, yet little is known about their growth roles in flows part because these difficult to quantify. Here, we show carbon uptake were higher compared non-predatory bacteria, a finding across 15 sites, synthesizing 82 experiments over 100,000 taxon-specific...