Interactions between sediment microbial ecology and physical dynamics drive heterogeneity in contextually similar depositional systems

摘要: This study focuses on the interactions between sediment stability and biological physical variables that influence erodibility across different habitats. Sampling at short-term temporal scales illustrated persistence of microphytobenthos (MPB) biomass even during periods frequent, high disturbance. The role MPB in stabilization along changing sedimentary habitat was also assessed. Key properties, such as biomass, composition, extracellular polymeric substances, were used to predict (erosion threshold) muddy sandy habitats within close proximity one another over multiple days, emersion periods. effects dewatering, growth, productivity examined well resilience recovery community after disturbance from tidal currents waves. Canonical analysis principal components (CAP) ordinations visualize assess trends observed biophysical properties sites, marginal sequential distance-based linear models identify key influencing erodibility. While particle size bed important for differences sites CAP analysis, it contributed less variability than parameters. Among predictors, diversity explained very little variation tests but a significant predictor when considered. both predictors stability, contributing 9% 10%, respectively, final model compared 2% by grain size.