Concepts

The hypothesis that disposing of excess dietary nutrients imposes a growth cost on organisms, creating hump-shaped relationships with diet stoichiometry

Dimensionless number comparing transport timescale to reaction timescale, used to determine whether transport or reaction processes dominate

Properties of materials that inhibit microbial growth and decomposition

Organic material found in pond sediments that serves as nutrient storage compartment

The accumulation of substances like sodium in organisms through their food chain, allowing carnivores to obtain adequate salt from prey

The transfer of CO2 from water to atmosphere through gas exchange at the air-water interface

Distribution of carbon between different reservoirs including atmosphere, subsurface, and exported dissolved phases during weathering processes

Biogeochemical model that accounts for moisture-dependent activation and dormancy of distinct microbial communities at different effective saturations

The downstream transport and repeated cycling of nutrients through uptake and release in stream ecosystems

The removal of phosphorus from the water column by organisms for metabolic processes

Use of plants to remove contaminants from soil

Changes in rock porosity and permeability due to mineral dissolution and precipitation reactions during weathering

The reducing or oxidizing capacity of a system that determines a river or floodplain's ability to break down waste products and recycle carbon and nutrients

Distinct layers in soil profile with different physical and chemical properties

Use of 87Sr/86Sr ratios to trace sources of nutrients and water in ecological systems