Concepts

All (3,182)Explore Concept Graph

3,182 concepts

measurement

snow-covered area mapping

Remote sensing technique to identify and quantify spatial extent of snow cover using satellite imagery

hydrology1 paper
theory

social complexity

A system is typically considered more complex if it contains more parts, more variability or types of parts, more connections or types of connections between parts or more layers of connected meaning

general ecology1 paper
process

social constraints

population ecology1 paper
hypothesis

social fence hypothesis

high density population reduces dispersal because immigration of new individuals will increase negative encounters

population ecology1 paper
phenomenon

social mobility

The ability of individuals to move up or down in socioeconomic status within their lifetime

general ecology1 paper
measurement

social position

population ecology1 paper
process

social regulation

community ecology1 paper
phenomenon

social structure

Organization of individuals within populations based on family groups and territorial patterns

population ecology1 paper
hypothesis

social subordination hypothesis

Hypothesis that dominant individuals can force subordinates to leave natal territory through aggression or control over resources

population ecology1 paper
process

social transmission

The process of scrounging new innovations that can efficiently diffuse novel traits through a population by social learning

population ecology1 paper
measurement

social utility

methodological1 paper
theory

sociality effects on communication

The hypothesis that social structure influences the evolution of individually distinctive communication signals

evolution1 paper
process

society formation

The process by which animals form social groups that share and defend space, distinguish group members from nonmembers, and may persist for many generations

population ecology1 paper
measurement

socioeconomic status

The social standing or class of an individual or group, often measured as a combination of education, income and occupation

population ecology1 paper
process

soil aggregation

Formation of stable soil structural units through binding of soil particles by organic compounds and microbial processes

biogeochemistry1 paper
phenomenon

soil nitrogen saturation

Loss of biodiversity and decreased soil nitrogen retention when nitrogen availability exceeds plant demand

biogeochemistry1 paper
process

soil nutrient enrichment

Process by which ant foraging and nesting activities alter soil chemistry by accumulating organic matter and nutrients near colonies

biogeochemistry1 paper
process

soil production rate

Rate of bedrock weathering to mobile soil, typically decreasing exponentially with soil depth

geomorphology1 paper
measurement

soil respiration temperature sensitivity

The degree to which soil carbon dioxide efflux rates change with soil temperature, typically quantified as Q10 or temperature response function parameters

biogeochemistry1 paper
measurement

soil thickness

Depth of mobile regolith layer from land surface to bedrock contact, controlling water, carbon, and nutrient dynamics

hydrology1 paper
framework

soil-plant-atmosphere-continuum

Water potential gradient system where water potential values are highest in soil, lowest in atmosphere, and intermediate in the plant, driving water movement upward

hydrology1 paper
measurement

solid TOC

biogeochemistry1 paper
measurement

solid-phase microextraction

A sampling technique using polymer-coated fibers to extract and concentrate volatile organic compounds from headspace for analysis

methodological1 paper
measurement

solitary

population ecology1 paper
phenomenon

solitary bees

Bee species where females provision individual nests independently, comprising over 85% of bee species but receiving less research attention than eusocial species.

community ecology1 paper
framework

solitary species

Species that live alone rather than in groups, potentially making changes in antipredator behavior more impactful to individual survival.

population ecology1 paper
measurement

soluble reactive phosphorus

The dissolved phosphorus fraction immediately available for biological uptake, measured as the proximate cause of bloom formation

biogeochemistry1 paper
measurement

song repertoire size

The number of distinct syllables, phrases, or song types produced by an individual or population

methodological1 paper
process

soot formation

Process starting with PAH which stack into particles, then spheres, then agglomerates, finally mature soot

biogeochemistry1 paper
process

sorption-desorption

Reversible chemical process where contaminants attach to and detach from solid phase materials in aquifers

geochemistry1 paper
measurement

soundscape

The complete acoustic environment consisting of biotic and abiotic sounds

landscape1 paper
framework

space-for-time substitution

Method assuming that spatial and temporal variation are equivalent by comparing soil carbon across an elevation gradient to make assumptions about change in rate of carbon sequestration

methodological1 paper
measurement

space-use overlap

measure of which individuals share critical resources of burrow sites and foraging areas

population ecology1 paper
measurement

spallation surface production rate

methodological1 paper
process

spatial distribution modeling

hydrology1 paper
framework

spatial fire-scar reconstruction

Method using tree-ring fire scars to reconstruct historical fire patterns across landscapes

methodological1 paper
methodology

spatial interpolation

Method for estimating values at unmapped locations using known values at nearby locations

methodological1 paper
process

spatial memory

Ability of butterflies to remember and return to specific puddling locations using memory rather than immediate sensory cues

general ecology1 paper
metric

spatial pattern efficiency function

Objective function for spatial similarity assessment combining histogram intersection, correlation, and bias components

methodological1 paper
process

spatial proximity

Physical nearness or distance between individuals influencing social interaction probability

population ecology1 paper
process

spatial subsidies

Transfer of energy, materials, or organisms across habitat boundaries that affects recipient communities

community ecology1 paper
framework

spatiotemporal filtering

Approach combining spatial distribution models and temporal phenological analyses to refine candidate taxa lists

methodological1 paper
process

spawning

population ecology1 paper
phenomenon

specialist herbivore

Herbivorous insects that have evolved to feed on glucosinolate-producing plants without deleterious consequences

community ecology1 paper
phenomenon

species overabundance

When species limit the abundance or occurrence of other resources or hinder an ecosystem process or human activity

population ecology1 paper
theory

species redundancy

community ecology1 paper
framework

species-site combinations

Analytical units defined as individual species occurring within 0.1° grid squares

methodological1 paper
measurement

specific differential phase

Range derivative of the propagational component of differential phase shift, intrinsically dependent on particle size and number concentration

hydrology1 paper
measurement

spectral sensitivity

The relative efficiency of the eye to be stimulated and detect light or other signals, as a function of the wavelength of the signal

general ecology1 paper
phenomenon

sperm storage

Retention of viable sperm in female spermatheca after mating for extended periods allowing delayed fertilization

population ecology1 paper