Concepts

All (3,182)Explore Concept Graph

3,182 concepts

process

prey selection

community ecology12 papers
framework

quantitative genetics

The study of traits controlled by multiple loci with continuous phenotypic distributions and measurable heritability

evolution12 papers
measurement

scattering

climate12 papers
process

seed retention

community ecology12 papers
measurement

sex ratio

Population parameter measuring the relative frequency of males and females, specifically operational sex ratio of flowering individuals

population ecology12 papers
process

stream metabolism

general ecology12 papers
measurement

stress hormones

Cortisol and glucocorticoids that help regulate energy balance in animals and could determine dispersal behavior under stressful conditions

general ecology12 papers
metric

topographic wetness index

A proxy for subsurface moisture conditions calculated as the log ratio between upslope contributing area and slope angle

hydrology12 papers
phenomenon

vocal individuality

The degree to which individuals can be discriminated from one another based on their vocalizations, quantified using information theory

population ecology12 papers
process

warming

climate12 papers
measurement

water year

October through September annual cycle used for water resource analysis

hydrology12 papers
hypothesis

Species Interaction-Abiotic Stress Hypothesis

Predicts that species interactions should disappear at the stressful end of environmental gradients where abiotic conditions constrain species ranges

community ecology11 papers
process

anaerobic methane oxidation

Microbial process where methane is oxidized under anoxic conditions, often coupled to reduction of alternative electron acceptors

biogeochemistry11 papers
phenomenon

antisocial behavior

Directed aggression toward conspecifics, increasing spatial distancing from or decreasing huddling with unfamiliar conspecifics

population ecology11 papers
phenomenon

atmospheric boundary layer

The lowest part of the atmosphere directly influenced by the Earth's surface

climate11 papers
process

chemical communication

Communication through chemical signals that mediate various aspects of social activities in insects, especially regulation of reproduction

community ecology11 papers
measurement

fungal colonization

The extent to which fungal symbionts colonize plant tissues, measured as percentage of tissue colonized

community ecology11 papers
process

instar development

The progression through larval developmental stages with associated changes in size and feeding capacity

population ecology11 papers
measurement

leaf volumetric water content

Percentage of leaf biomass composed of water, calculated as difference between wet and dry weight divided by wet weight

general ecology11 papers
theory

maximum entropy theory of ecology

Theory that predicts patterns of distribution, abundance, and energetics using instantaneous values of community state variables including total area, total abundance, total species richness, and tota...

community ecology11 papers
process

microbial activity

biogeochemistry11 papers
process

nutrient limitation

Constraint on growth or reproduction due to insufficient availability of essential nutrients

biogeochemistry11 papers
measurement

potential evapotranspiration

An approximation of non-water stressed evapotranspiration calculated using energy-only methods from net radiation estimates

hydrology11 papers
process

reproductive suppression

Reduction in reproductive output of individuals due to presence of other conspecifics, particularly older or dominant individuals

population ecology11 papers
phenomenon

riparian zone

Streambed and boggy areas around streams as well as uphill water flows that are critical regions for DOC concentrations

hydrology11 papers
process

secondary cavity nesting

Bird species that utilize nest cavities created by other species rather than excavating their own

community ecology11 papers
process

solute export

hydrology11 papers
measurement

stable water isotopes

Naturally occurring isotopes of hydrogen (²H) and oxygen (¹⁸O) in water molecules used to trace water sources and movement through soil-plant systems

hydrology11 papers
measurement

summer survival

Probability of surviving the summer active season, measured by last sighting dates relative to seasonal cutoffs

population ecology11 papers
measurement

Larval survival rate

population ecology10 papers
hypothesis

Resource Availability Hypothesis

Predicts that fast-growing plants in high resource environments invest less in defense because they can easily regrow after herbivory

general ecology10 papers
measurement

SWE

hydrology10 papers
phenomenon

adaptation

evolution10 papers
process

aerosol-cloud interactions

The role of atmospheric aerosols in cloud formation and precipitation by acting as cloud condensation nuclei (CCN) and ice-nucleating particles (INPs)

climate10 papers
framework

animal model

Statistical approach that includes individual identity as a random effect linked to a pedigree to estimate additive genetic variance

evolution10 papers
process

animal-driven nutrient cycling

The contribution of animals to ecosystem nutrient fluxes through excretion, with supply determined by animal biomass, excretion rates, and time spent in the ecosystem

biogeochemistry10 papers
measurement

atmospheric reanalysis

climate10 papers
measurement

chlorophyll content

SPAD measurement of leaf chlorophyll concentration indicating photosynthetic capacity

general ecology10 papers
framework

climate change projections

Future climate scenarios based on different greenhouse gas emission pathways, specifically RCP 4.5 and RCP 8.5 scenarios

climate10 papers
process

compensatory response

The ability of plants to tolerate or compensate for herbivore damage through increased growth or reproduction

plant ecology10 papers
phenomenon

concentration-discharge relationship

The relationship between solute concentrations and discharge in streams, widely used as a metric for interpreting interaction of hydrological processes, chemical transport, and mineral reactions in wa...

hydrology10 papers
measurement

corolla length

The length of flower tubes, which correlates with bumble bee proboscis length and determines flower accessibility

community ecology10 papers
framework

demographic factors

Age and sex characteristics affecting susceptibility to mortality

population ecology10 papers
phenomenon

diel patterns

Daily activity patterns and rhythms in organism behavior

general ecology10 papers
measurement

diet composition

community ecology10 papers
process

extinction cascades

community ecology10 papers
measurement

fecal glucocorticoid metabolites

Metabolites of stress hormones measured in fecal samples as a proxy for physiological stress levels

population ecology10 papers
process

floodplain hydrostratigraphy

The spatial organization of sedimentary deposits and their hydraulic properties within floodplain aquifers

hydrology10 papers
methodology

focal animal sampling

Behavioral observation method where a single individual is observed continuously for a fixed time period

methodological10 papers
hypothesis

group size effect

The hypothesis that animals allocate less time to antipredator vigilance as a function of increasing numbers of animals foraging together

community ecology10 papers