color discrimination
column testing
Laboratory procedure using sediment-filled columns with various influent waters to determine contaminant release rates and transport parameters
comammox
Complete ammonia-oxidizing bacteria capable of carrying out both ammonia oxidation to nitrite and nitrite oxidation to nitrate steps
common garden experiment
Experimental design where seeds from broad elevational gradient planted into four common gardens in four treatments
communication network
The set of signallers and receivers engaged in the exchange of information
community biomass
Total biomass of animal community, which was the strongest predictor of nutrient supply contributions across hydroperiods
community college transfer pathway
Educational pathway where students begin at 2-year community colleges and transfer to 4-year institutions
community evergreenness
community genetics
The study of how plant genetic variation influences not only phenotypes of the plant itself, but also the community of organisms that associate with the plant
community height
comparative chromosome painting
Cytogenetic technique using fluorescently labeled DNA probes to identify homologous chromosome regions across species
compartment-specific gene expression
Alternative targeting of gene products to different cellular compartments through splice variants or targeting sequences
compensatory feeding
Increased food intake to offset elevated energy expenditure from additional activity or metabolic demands.
compensatory mortality
The ecological principle that removing individuals may not reduce population size if sampling removes individuals that would have died anyway
compensatory response
Ability of remaining species to increase growth and fill ecological niches left vacant by lost species
competition indices
Measures of inter-tree competition including relative spacing, larger neighbor volume, and neighborhood density calculated within specified neighborhoods
competitive ability
The capacity of a species to successfully compete for limiting resources, which can be altered by parasitic stress
complex life cycles
Life cycles involving transitions between stages often involving not only habitat shifts but also dramatic changes in mobility
compositional principal component analysis
PCA performed on geochemical data transformed to compositional units to remove effects of dilution
compound classes
compound leaves
concentration contrasts
condition dependence
The production and structure of animal signals may be condition dependent and may provide more than one type of information to receivers
conductivity
Water electrical conductivity that increases as solutes concentrate during pond drying
configural invariance
conflict landscape
Battle-zone landscapes that are always in motion and in a process of becoming, where civilian and military landscapes merge and multi-vocal overlapping accounts are produced
confounding effects
When three variables are all related to one another, creating spurious climate-phenology relationships because both variables change across years
congeneric pairs
Pairs of closely related species within the same genus that allow comparison while controlling for evolutionary history.
conifer needle decomposition
connectance
Number of existing links divided by the number of possible links, or C=L/S²
conservation partnerships
conservation status
conservative mixing
Predictable linear mixing behavior of chemical constituents between two water sources without reaction or loss
consistency ratio
Statistical measure of the consistency or scatter in paleocurrent directions
constitutive equations
Relationships that link chemical reactions and transport using flow, transport, and reaction parameters
consumer-resource interaction
consumptive water use
The fraction of water that was originally withdrawn from a source for irrigation and is subsequently removed from availability owing to evaporation, transpiration, or incorporation into crops
contaminant removal
content validity
contextual analysis
Extension of the Lande-Arnold selection analysis using partial regression to partition selection among levels
contextual independence
Signals must be 'contextually independent' where perceivers must respond to a variable call much as they would to the eliciting stimulus, even when no other cues are available
contextual information
Spatial information modeling patterns such as shape and texture through correlation between adjacent pixels to account for spectral variability
continental divide
High elevation ridges that separate drainage systems flowing to different oceans
continental geotherms
contrast agent
Chemical compounds that enhance image contrast by increasing X-ray absorption properties of biological tissues
control
convective boundary layer
Turbulent atmospheric layer near surface that develops during daytime heating, characterized by well-mixed conditions and active convection
convolutional neural networks
Deep learning architecture using convolutional layers for image classification and segmentation tasks
