Concepts

All (3,182)Explore Concept Graph

3,182 concepts

measurement

locomotor performance

Maximum running speed of an individual measured during chase trials

general ecology3 papers
measurement

magnetic properties

methodological3 papers
phenomenon

male-biased dispersal

Pattern where male mammals tend to travel farther than females in exploratory excursions and disperse more than females

population ecology3 papers
theory

marginal value theorem

Theory stating that foragers will leave a patch after the quality of the patch drops below the average quality of the overall habitat

general ecology3 papers
measurement

mass gain

Proportional increase in body mass during the active growing season, calculated as August 15 body mass divided by June 1 body mass

population ecology3 papers
hypothesis

mass ratio hypothesis

Species with greater primary production exert the main controls for the functioning of ecosystems due to greater aboveground abundance of biomass or leaf area that promotes resource uptake

community ecology3 papers
measurement

mass-specific excretion rate

the rate of nutrient excretion per unit body mass of an organism

biogeochemistry3 papers
framework

maximum likelihood estimation

Statistical method that estimates parameters by maximizing the likelihood function of observed data

methodological3 papers
measurement

mean Doppler velocity

methodological3 papers
phenomenon

metal pollution

Environmental contamination by heavy metals from mining activities affecting freshwater ecosystems

environmental stress3 papers
process

metal-oxide precipitation

biogeochemistry3 papers
measurement

microbial biomass

Total amount of living microbial tissue in soil measured as carbon and nitrogen content

biogeochemistry3 papers
measurement

microsatellite DNA analysis

Molecular technique using highly polymorphic DNA markers to assess genetic relationships among individuals

molecular3 papers
phenomenon

mobile genetic elements

DNA sequences that can move or be transferred between different positions within genomes or between genomes

molecular3 papers
measurement

molecular evolution rate

Rate of nonsynonymous substitutions per nonsynonymous site normalized by synonymous substitutions per synonymous site (dN/dS)

evolution3 papers
phenomenon

mountain lakes

hydrology3 papers
methodological

multicollinearity

Statistical phenomenon where predictor variables are correlated, potentially masking individual effects in regression analysis

methodological3 papers
framework

multiple-use management

landscape3 papers
hypothesis

multipredator hypothesis

Assumes that antipredator adaptations evolve together and thus prey may respond to extinct predators as long as they have experience with other predators.

population ecology3 papers
methodological

multiscale measurements

Measurements spanning multiple spatial and temporal scales within a watershed

methodological3 papers
process

natural attenuation

biogeochemistry3 papers
framework

nesting traits

Life history characteristics related to where and how bees construct their nests, categorized as above-ground or below-ground

population ecology3 papers
measurement

noble gas recharge temperature

hydrology3 papers
framework

non-additive effects

Combined impact of multiple predators differs from the sum of their individual effects, can be greater or less than additive

community ecology3 papers
process

nonlinear process interactions

general ecology3 papers
framework

nutritional ecology

Study of how organisms obtain and use nutrients and how nutrition affects fitness

general ecology3 papers
process

ontogeny

An individual's development from egg to adult

general ecology3 papers
theory

optimal foraging theory

Theory stating that pollinator visitation rates are higher in areas of higher floral density while in sparse populations pollinators switch between plants less frequently

community ecology3 papers
process

optimal outcrossing distance

Distance range that maximizes pollen fertilization success and offspring survival

population ecology3 papers
process

ovule usurpation

Loss of ovules to unfit heterospecific pollen that successfully reaches and occupies ovules but fails to produce viable offspring

reproduction3 papers
process

oxygen ingress

biogeochemistry3 papers
methodological

partial least squares regression

Statistical modeling approach using spectral reflectance measurements to extrapolate functional trait values

methodological3 papers
process

perturbations

general ecology3 papers
process

photoreductive dissolution

biogeochemistry3 papers
process

physical protection

biogeochemistry3 papers
concept

pioneer species

Species best suited for the environment that make up most of the vegetation in early successional stages

community ecology3 papers
measurement

plant disease

Percentage of leaf area affected by pathogen symptoms including powdery mildew, rust, and other fungal diseases

community ecology3 papers
process

positive feedback loop

Mechanism where state and behavior mutually reinforce each other, measured as positive correlation between individual intercept and slope in random regression models.

population ecology3 papers
process

post-fire recovery period

Period required for sagebrush to recover to pre-fire conditions after burning

population ecology3 papers
measurement

posterior predictive distribution

methodological3 papers
model type

principal component analysis

Statistical method used to identify the structuring factors driving life-history variation and to detect slow-fast continuum patterns

methodological3 papers
phenomenon

queen signal

Chemical compounds overproduced by queens compared to workers that potentially regulate worker reproduction

community ecology3 papers
process

reactive oxygen species

Oxygen-containing reactive molecules with considerable environmental importance due to their high reactivity in mediating redox transformations

biogeochemistry3 papers
metric

repeatability

The proportion of variance in a trait that is explained by individual identity, indicating consistency of individual differences over time and across situations

general ecology3 papers
theory

resource allocation

The distribution of limited resources among competing physiological functions such as growth, reproduction, and defense

population ecology3 papers
measurement

resource density

The abundance or availability of resources in a given area

population ecology3 papers
process

riming

climate3 papers
phenomenon

rising limb

hydrology3 papers
measurement

river stage

hydrology3 papers
measurement

salinity

biogeochemistry3 papers