Concepts

All (3,182)Explore Concept Graph

3,182 concepts

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blue water footprint

The volume of surface and ground water consumed as a result of the production of a good, expressed as the reciprocal of economic water productivity

hydrology1 paper
metric

blue water footprint (BWF)

hydrology1 paper
measurement

body mass

The weight of an individual animal, used as an indicator of survival and fecundity

population ecology1 paper
process

body size-fecundity relationship

Direct relationship between body size and reproductive output in mayflies

population ecology1 paper
concept

bonanza resource

A valuable and unpredictable prize (carrion) that must be defended from an assortment of organisms

community ecology1 paper
phenomenon

boom-and-bust dynamics

Large fluctuations in damage levels driven by interactions between warming and precipitation variability

population ecology1 paper
process

boundary layer mixing

Vertical mixing of air in the atmospheric boundary layer that affects aerosol concentrations and vertical distribution

climate1 paper
metric

bounding box ratio

A dimensional ratio calculated from minimum bounding rectangles to quantify the shape characteristics of pond polygons

methodological1 paper
process

braided stream facies

Sedimentary facies characteristic of braided river systems with multiple channels and bars

sedimentology1 paper
model type

broken-stick model

Statistical model used to determine the number of principal components to retain, setting threshold above which a component explains more variation than expected by chance alone

methodological1 paper
measurement

brood cell completion

population ecology1 paper
measurement

brood quality

Measures of brood fitness including larval number, weight, and production efficiency

population ecology1 paper
framework

brown food web

The component of food webs based on detrital energy pathways as opposed to primary production

community ecology1 paper
process

browsing

community ecology1 paper
process

buffering

population ecology1 paper
hypothesis

buffering hypothesis

Hypothesis that presence of active social support systems provides aid to focal individuals and creates buffer against stressors

general ecology1 paper
framework

built environment microbiology

Study of microbial communities and processes in constructed habitats and structures

general ecology1 paper
phenomenon

bull's-eye pattern

A spatial pattern of rapid exhumation concentrated in a central zone with decreasing rates toward the periphery

landscape1 paper
process

burrow sharing

Semi-fossorial marmots using the same burrow entrances, indicating social association

population ecology1 paper
measurement

butterfly activity

Number of butterflies observed during a given time period, used as a measure of behavioral activity influenced by environmental conditions

population ecology1 paper
measurement

butterfly morphology

general ecology1 paper
process

calcium common ion effect

biogeochemistry1 paper
process

caldera volcanism

general ecology1 paper
process

caloric restriction

general ecology1 paper
measurement

camera trap image classification

Automated identification of species from camera trap photographs using machine learning

methodological1 paper
measurement

canopy height model

Digital representation of forest canopy height derived from remote sensing data

methodological1 paper
process

canopy interception

Process by which tree canopies intercept and reduce throughfall of precipitation to surface soils

hydrology1 paper
process

canopy light penetration

The amount of sunlight reaching the forest floor through tree canopy, affected by crown thinning and leaf flushing

general ecology1 paper
phenomenon

capillary fringe

hydrology1 paper
process

capital accumulation

The economic process by which wealth is concentrated through industrial extraction and trade networks

general ecology1 paper
framework

captive breeding

Conservation strategy to preserve threatened or critically endangered species through maintaining reproductive populations in captivity

general ecology1 paper
methodology

capture-recapture

An ecological technique that relies on randomly choosing a sample of recorded syllables and then 'recapturing' some of those syllables in successive samples to estimate total repertoire size

methodological1 paper
measurement

carbohydrate-active enzymes

Enzymes involved in the synthesis, modification, and degradation of carbohydrates including polysaccharides

biogeochemistry1 paper
model type

carbon budget model

Integrative model combining photosynthesis, respiration, and total nonstructural carbohydrate measurements to quantify carbon allocation patterns

biogeochemistry1 paper
process

carbon deficit

Accumulated shortage of carbon resources in plants that can influence future phenological timing

biogeochemistry1 paper
hypothesis

carbon limitation

Water acts as a limiting factor for both decomposition of organic matter and net carbon assimilation

biogeochemistry1 paper
metric

carbon loss rate per degree per year

biogeochemistry1 paper
process

carbon oxidation

biogeochemistry1 paper
measurement

carbon spectroscopy

Spectroscopic techniques including NEXAFS and FTIR used to characterize the functional group composition and chemical structure of organic carbon

biogeochemistry1 paper
process

carbon use efficiency

The proportion of carbon taken up by microorganisms that is converted to biomass rather than respired as CO2

biogeochemistry1 paper
process

carcass maintenance behaviors

Post-burial behaviors including shaving fur, rounding carcasses, and secreting antimicrobial exudate

population ecology1 paper
measurement

cardenolide

molecular1 paper
measurement

carrier frequency

The dominant frequency component of acoustic signals, measured as the highest peak frequency from FFT analysis

methodological1 paper
phenomenon

carry-over effects

Effects of herbivory and pollination that persist from one growing season to the next

population ecology1 paper
phenomenon

cascade barriers

Natural waterfall barriers that create transitions between fishless upstream reaches and fish-containing downstream reaches

landscape1 paper
metric

cash rent premiums

The difference between cash rents for irrigated versus non-irrigated land in the same area, used to estimate the value of water for irrigation

general ecology1 paper
measurement

caste distribution function

The range of worker sizes within colonies, also called worker polymorphism

population ecology1 paper
metric

catch per unit effort

Standardized measure of abundance calculated as number of individuals caught per unit of sampling time or effort

methodological1 paper
framework

categorical forecast verification

Assessment of forecast skill for predicting occurrence of events within defined categories using contingency table analysis

hydrology1 paper
process

cattle behavior modification

Training cattle to alter their grazing patterns and spatial use through management techniques

methodological1 paper