Concepts
19 concepts
climate-induced range shifts
Changes in species geographic distributions in response to changing climate conditions, typically involving movement to higher elevations or latitudes
pond hydroperiod
The frequency and duration of annual pond inundation vs. exposure, with categories including temporary ponds (dry annually in early summer), semi-permanent ponds (dry in late summer in most but not al...
algae bloom
Excessive extracellular stalk production by individual cells that coalesce to form a continuous mat covering the stream bottom
kairomones
Chemical cues released by predators that benefit prey by providing information about predator presence
population stage structure
The distribution of individuals across different size or age classes within a population
pond drying
Temporary pond hydroperiod reduction that triggers behavioral and physiological responses in aquatic organisms
biofluorescence
The emission of visible light by organisms following the absorption of shorter wavelengths of light
oligotrophic
Low nutrient conditions that select for microorganisms adapted to low substrate availability
microhabitat preference
Species-specific selection for particular combinations of physical habitat characteristics like water depth, current velocity, and substrate size
protandry
Male-first flowering phenology where flowers function first as males then as females
case grazing
Behavior where caddisfly larvae consume material from their own or others' protective cases
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
beaver pond morphology
Physical structure and arrangement of beaver ponds, specifically comparing single isolated ponds versus terraced series of connected ponds
diel periodicity
Daily patterns in organism behavior, with some mayfly species showing increased drift activity at night to minimize exposure to visual predators
dietary specialization
Differential prey use based on habitat type, with fairy shrimp comprising majority of diet in temporary ponds
environmental harshness
Degree of environmental stress affecting survival and reproduction, differing between elevational sites
periphytic algae
Algae growing attached to surfaces such as decomposing plant material
sexual dimorphism
Differences between sexes in fluorescent patterns, as identified in Plethodon metcalfi
snow mosquitoes
Univoltine species which develop from overwintered eggs in pools formed by melting snow water