Concepts
8 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
kairomones
Chemical cues released by predators that benefit prey by providing information about predator presence
invasive species establishment
The process by which non-native species become established and spread in new environments
algal resource quality
The nutritional value of algae as food for aquatic consumers, typically measured by nutrient content
benthic community sampling
Quantitative collection methods for invertebrates living on or in stream bottom substrates
microhabitat preference
Species-specific selection for particular combinations of physical habitat characteristics like water depth, current velocity, and substrate size
diel vertical migration
Daily behavioral pattern where aquatic organisms move vertically in the water column, typically showing different activity levels during day versus night periods
biofilm succession
The sequential development of microbial communities on substrates following disturbance
