Concepts

Constraint on growth or reproduction due to insufficient availability of essential nutrients

The relative proportions of chemical elements in biological systems

the rate of nutrient excretion per unit body mass of an organism

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

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

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