Concepts

All (3,182)Explore Concept Graph

3,182 concepts

measurement

spermatheca

Specialized female reproductive organ for sperm storage, appearing as translucent pearl-white bean-shaped structure between bursae

molecular1 paper
measurement

spinescence

general ecology1 paper
measurement

spirotheca

methodological1 paper
process

spontaneous movement

Natural locomotion that occurs independently of predator approach and may be falsely recorded as flight initiation

population ecology1 paper
measurement

spore production

population ecology1 paper
phenomenon

spring freshette

hydrology1 paper
process

springtime warming from carbonaceous particles

climate1 paper
measurement

stable isotope enrichment

A technique using heavy nitrogen isotopes to mark developing organisms by enriching their environment, allowing tracking of movement between habitats

methodological1 paper
measurement

stage height

hydrology1 paper
methodology

standardized monitoring

Use of consistent, repeatable methods for population monitoring to enable comparable data across time and space

methodological1 paper
metric

standardized selection differentials

population ecology1 paper
regulatory framework

standards and guidelines

environmental review1 paper
framework

standards-based reform

methodological1 paper
metric

standing crop index

Calculated by multiplying the percent cover by the thickness (cm) of the mat

methodological1 paper
measurement

start of season (SOS)

general ecology1 paper
measurement

starting zone aspect

landscape1 paper
measurement

state variables

community ecology1 paper
theory

state-dependence

The hypothesis that an animal's internal state (age, sex, condition) influences its behavioral decisions and tradeoffs

general ecology1 paper
framework

state-dependent dynamic modeling

Mathematical approach that models optimal behavioral decisions as functions of individual state variables (energy, condition) and environmental conditions over time

general ecology1 paper
hypothesis

state-dependent safety

population ecology1 paper
hypothesis

state-dependent safety hypothesis

Hypothesis stating that differences in body condition, size or energy reserves cause and maintain variation in personality, where individuals in better condition take more risks and those in poorer co...

population ecology1 paper
framework

statistical modeling

methodological1 paper
phenomenon

status signaling

population ecology1 paper
measurement

stem number

population ecology1 paper
process

stigma clogging

population ecology1 paper
hypothesis

stigma lobe-ovule relationship

The hypothesis that there is a 1:1 anatomical relationship between stigma lobe and ovule in Geranium richardsonii

general ecology1 paper
process

stochastic processes

general ecology1 paper
process

stoichiometric convergence

The convergence of nutrient ratios (particularly nitrogen to phosphorus ratios) across different regions or communities despite varying environmental conditions

biogeochemistry1 paper
framework

stoichiometric templates

community ecology1 paper
phenomenon

stooling

community ecology1 paper
metric

storage-discharge sensitivity

The relationship between catchment water storage and discharge output, typically characterized by a power law relationship Q = aS^b

hydrology1 paper
metric

stratification ratio

Ratio of planar cross stratification to planar cross stratification plus horizontal stratification used to distinguish proximal from distal braided stream facies

sedimentology1 paper
process

stream flow reduction

Decrease in the total amount of water traveling down a stream, measured in L/sec

hydrology1 paper
measurement

stream gains and losses

hydrology1 paper
metric

stream order

hydrology1 paper
framework

stream paradigm

The established understanding that animal detritivores accelerate detritus breakdown compared to microbial decomposition alone in stream systems

general ecology1 paper
framework

stream processing

Computational model for processing continuous data streams through connected operators in a dataflow graph

methodological1 paper
metric

streamflow flashiness

A measure of how quickly streamflow rises and falls relative to total streamflow, quantified using the Richards-Baker Flashiness Index

hydrology1 paper
process

stress response

Cellular and physiological responses to environmental stressors including dietary toxins, oxidation, heat, and starvation

general ecology1 paper
process

stress-induced energetics

Energetic demands and behavioral responses of birds under environmental stress conditions

population ecology1 paper
process

stridulation

The movement of the pars stridens on the plectra, causing pulses of sound

community ecology1 paper
theory

structural balance theory

Theory predicting that certain configurations of positive and negative relationships in triads are inherently more stable or balanced than others

community ecology1 paper
phenomenon

structural breakpoint

Unexpected or sudden changes over time in time series, representing shifts in temporal patterns of meteorological variables

climate1 paper
phenomenon

structural color

Colors produced by light-scattering nanostructures rather than pigment absorption

general ecology1 paper
process

structural control

The influence of geological structures like fractures and faults on ore deposit formation

general geology1 paper
measurement

structural size

population ecology1 paper
phenomenon

style length variation

Continuous variation in style length within and among M. fusiformis populations, categorized as long-styled vs short-styled morphs

evolution1 paper
process

subcellular protein localization

The spatial distribution of proteins within cellular compartments that reflects their activation state and functional activity

molecular1 paper
measurement

subjective personality ratings

Method using observers to score individuals on trait adjectives rather than quantifying specific behaviors

methodological1 paper
measurement

subjective ratings

methodological1 paper