dissolved As
dissolved noble gases
dissolved rhenium yields
distance from Festuca
distance from water
Spatial measurement of proximity to water sources as habitat variable
diversions
dividing line
dormant season climate
Climate conditions outside the growing season when plants are not actively growing
double bond equivalence
ecological dominance
Having the greatest foraging success relative to abundance in the environment
economic benefits
effective Uranium
Measurement of radiation damage in a crystal defined as [U] + .235*[Th]
effective porosity
The fraction of pore volume in rock that contributes to fluid flow, excluding isolated or dead-end pores
electrical resistivity
A measure of how strongly a material opposes the flow of electric current, inversely related to electrical conductivity
elemental analysis
elemental imbalance
emissivity
The efficiency with which a surface emits thermal radiation, affecting thermal imaging measurements
end member contributions
end-member concentrations
entropy
A measure of noisiness in alarm calls, quantified using deterministic chaos analysis
environmental quality
A latent variable representing overall environmental suitability that affects multiple demographic processes simultaneously
exposure ages
extractable metals
Iron and manganese recovered by acid extraction, indicating metals available for microbial electron transport processes
eye size
false color imagery
Satellite or aerial imagery that uses non-visible light wavelengths to enhance vegetation detection
fat stores
fecal GCM levels
fecal matter area
female kin density
The number of related breeding females (coefficient of relatedness >0.125) using the same locality as the focal female
fission-track radiography
A technique that identifies areas within a thin section that have elevated uranium concentrations by placing mica over thin sections and irradiating in a nuclear reactor to create fission tracks viewa...
fitness components
Three key early life history fitness components: germination success, probability of survival of seedlings, and time until mortality for seedlings
flight activity
flight initiation
The behavioral initiation of flight activity in response to environmental conditions, particularly temperature
floating chamber technique
Method for directly measuring gas flux by monitoring concentration changes in enclosed chambers placed on water surface
floodplain scale
floral bullseye size
floral longevity
The duration flowers persist on plants, typically 4-5 days for Corydalis caseana
flower vibration
Physical oscillations of flowers caused by air movement from pollinator wing beats
foliar traits
Leaf-level characteristics including nitrogen content, carbon content, leaf mass per area, and water content that can be measured and mapped using spectroscopy
footprint measures
Metrics that sum up accumulated change over time, reducing historical processes to single data points
foraging trips
forest fuel loads
Quantified biomass of combustible material including duff, litter, and downed woody debris classified by time to ignition
forest productivity
Rate of forest growth and biomass accumulation, often measured through tree ring widths or forest inventory data
formation potential
formation potential testing
Standardized laboratory procedure to quantify the potential for organic matter to form disinfection byproducts under controlled chlorination conditions
frequency of stalked cells
The proportion of cells producing stalks within a population, used as a metric for stalk production activity
functional evenness
fungal community composition
Diversity and abundance of fungal morphotypes colonizing organic substrates
geometric morphometrics
Statistical analysis of shape variation using landmark coordinates
giving up density
A common method used to measure a rodent's perception of potential gain versus cost in foraging decisions
