Concepts

All (847)Explore Concept Graph

847 concepts

measurement

persistence

number of behaviors directed at test apparatus

population ecology1 paper
measurement

persistence

The proportion of time an individual spent interacting with the puzzle box during a trial

population ecology1 paper
measurement

phenol oxidative potential

Capacity of soil to oxidize phenolic compounds, measured using L-DOPA substrate and spectrophotometric detection of oxidation products

biogeochemistry1 paper
measurement

phenological skewness

A measure of asymmetry in the distribution of phenological activity timing, quantified as the Fisher-Pearson standardized third-moment coefficient

general ecology1 paper
measurement

phospholipid fatty acid analysis

Analytical technique using phospholipid fatty acids as biomarkers to characterize soil microbial community structure and biomass

molecular1 paper
measurement

phospholipid fatty acids

molecular1 paper
measurement

pile density

The density of hair (pile) on insect body parts, categorized as low, medium, or high

methodological1 paper
measurement

pinene emission

molecular1 paper
measurement

platform length

The length of the floral landing platform for pollinators, measured from the split of fused petals to the end of the platform

evolution1 paper
measurement

point intercept method

Vegetation sampling technique using vertical markers to estimate species proportions based on plant contacts

methodological1 paper
measurement

polarization diversity pulse pair

Radar technique using alternating H and V polarized pulses to estimate Doppler velocity while overcoming decorrelation limitations

methodological1 paper
measurement

polyunsaturated fatty acids (PUFAs)

Important biochemicals for regular bodily functions, primarily sourced from algae in aquatic systems

biogeochemistry1 paper
measurement

pore volume

Volume of void space in a column, used to normalize flow-through time in column experiments

hydrology1 paper
measurement

postural control

An organism's ability to maintain body position and right itself when flipped, used as indicator of thermal stress

methodological1 paper
measurement

potato quality

general ecology1 paper
measurement

precession

climate1 paper
measurement

predation bioassay

Experimental method using artificial prey to quantify predation rates in natural environments

methodological1 paper
measurement

program connectedness

Students' sense of being connected to and comfortable with their research groups, programs, or broader scientific communities

general ecology1 paper
measurement

project ownership

methodological1 paper
measurement

proloculus

methodological1 paper
measurement

proportion escaped from seed predation

population ecology1 paper
measurement

quantitative precipitation estimate

Estimates of precipitation amount derived from radar and other observational data

hydrology1 paper
measurement

quantum catch data

methodological1 paper
measurement

quantum dot fluorescent labeling

Use of fluorescent nanocrystals to label individual pollen grains for tracking movement between plants

methodological1 paper
measurement

quantum efficiency

general ecology1 paper
measurement

rRNA:rDNA ratio

The ratio of ribosomal RNA to ribosomal DNA used to estimate the size of the dormant population in a community

molecular1 paper
measurement

radial cell length

methodological1 paper
measurement

radioimmunoassay

Laboratory technique using antibody-antigen binding and radioactive tracers to measure hormone concentrations in biological samples

methodological1 paper
measurement

ramet damage

population ecology1 paper
measurement

range height indicator scan

Radar scanning strategy that measures at constant azimuth across varying elevation angles

methodological1 paper
measurement

rare earth elements

biogeochemistry1 paper
measurement

recreational cannabis dispensary sales

general ecology1 paper
measurement

relative humidity

An important factor for terrestrial amphibians due to their moist and permeable skin which allows for exchange of water, ions, and gasses in terrestrial habitats

general ecology1 paper
measurement

relaxed behaviors

Non-vigilant behaviors including foraging, preening, walking, and singing

population ecology1 paper
measurement

remote sensing observations

methodological1 paper
measurement

reproductive effort

The relative amount of available carbon that has been allocated to reproductive tissues, calculated as the ratio of carbon allocated to reproductive tissues versus total available carbon

population ecology1 paper
measurement

resource monopolization

The ability of a species to monopolize resources, measured as percentage of baits discovered first or monopolized during experiments.

community ecology1 paper
measurement

resource use

Individual differences in accessing and utilizing resources such as perches that provide enhanced visibility for predator detection

population ecology1 paper
measurement

resuscitation promoting factor C

A gene (rpfC) associated with transitions from dormant to active states and correlated with relative abundance of active microbes

molecular1 paper
measurement

reward size preference

community ecology1 paper
measurement

rhabdom length

methodological1 paper
measurement

ribosomal protein S3

Marker gene used for taxonomic classification of microbial communities

molecular1 paper
measurement

righting reflex

Behavioral response used as endpoint to determine anesthetic induction and recovery

methodological1 paper
measurement

rime mass

methodological1 paper
measurement

rock-N release rate

biogeochemistry1 paper
measurement

root distributions

general ecology1 paper
measurement

root exudates

biogeochemistry1 paper
measurement

root presence

population ecology1 paper
measurement

ruggedness metric

landscape1 paper
measurement

sap velocity

Rate of water movement through tree xylem measured using thermal dissipation methods

hydrology1 paper