J. C. Stegen

The paper integrates metagenomic, metaproteomic, and metabolomic data from river sediments to uncover microbial and viral roles in carbon and nitrogen cycling, creating a genomic resource called HUM-V.

The paper measures specific leaf area (SLA) variation across a boreal forest permafrost transition and finds a positive correlation between active layer depth and SLA, with implications for ecosystem productivity and carbon cycling.

The paper tests a conceptual framework linking microbial communities with environmental factors and processes, finding non-linear feedbacks triggered by disturbance.

The paper applies ecological theory to environmental metabolomes, revealing compositional divergence despite conserved molecular properties through the concept of thermodynamic redundancy.

The paper measures dissolved oxygen dynamics in a hydropeaked river system to identify hydrobiogeochemical tipping points driven by rapid hydrologic changes.

The paper unifies environmental metabolomics with metacommunity ecology to analyze NOM composition using ecological metrics and dendrograms.

The paper examines seasonal changes in within-gene diversity for nitrogen cycling genes in hyporheic zone communities, finding that nitrification genes show low richness while denitrification genes vary in richness and phylotype turnover.

The paper investigates microbial community succession in a hypersaline mat, finding that turnover, not nestedness, shapes community structure and that deterministic and stochastic processes affect bacteria and eukaryotes differently.

This study identifies dispersal limitation and thermodynamic constraints as key factors shaping permafrost microbial community structure, distinct from non-permafrost soils.

This study shows that increased dispersal in microbial communities reduces biogeochemical function by increasing maladapted taxa and highlights the tradeoff between generalist and specialist species.

The paper investigates how riparian vegetation affects oxidation of physically-bound organic carbon through biochemical and thermodynamic processes in the Columbia River corridor.

The paper investigates microbiome assembly in hydrologically-connected zones, finding deterministic ecological selection over dispersal and identifying organism groups linked to seasonal metabolic shifts in hyporheic zones.