Concepts
11 concepts
nonconsumptive effects
Behavioral, physiological, and life-history changes that reduce the risk of predation but have associated energetic or fitness costs to prey individuals and populations
invertebrate drift
Downstream movement of benthic invertebrates in flowing water either naturally or induced by disturbance
stalk production
Production of extracellular polymeric stalk material by diatoms when photosynthetic rates exceed cellular growth rates
biotic associations
Co-occurrence patterns between species that reflect ecological interactions beyond shared environmental responses
bioaccumulation
The accumulation of substances like sodium in organisms through their food chain, allowing carnivores to obtain adequate salt from prey
biofilm succession
The sequential development of microbial communities on substrates following disturbance
hydro-geomorphological constraints
Physical habitat constraints related to water flow and stream geomorphology that affect oviposition site availability
phosphorus uptake
The removal of phosphorus from the water column by organisms for metabolic processes
primary productivity
The production of organic compounds by autotrophic organisms, measured here through chlorophyll-a concentration