Concepts

All (3,182)Explore Concept Graph

3,182 concepts

process

alkaloid sequestration

The uptake and concentration of toxic alkaloid compounds by parasitic plants from their hosts

community ecology1 paper
process

alkaloid toxicity

Toxic effects of alkaloid compounds on herbivorous insects and livestock

plant ecology1 paper
metric

allele frequency change

Geometric mean of the ratio of allele frequency between consecutive generations (pt/pt-1)

evolution1 paper
measurement

allelic richness

Number of alleles present in a population, standardized for sample size

population ecology1 paper
process

allocation patterns

plant ecology1 paper
framework

allocation schedule

evolution1 paper
process

allometric growth

Growth pattern where fish tend to become relatively more slender as they grow longer, indicated by exponent b in weight-length relationship

population ecology1 paper
process

allometric relationship

The existence of a relationship between body size and syrinx size, which determines the range of fundamental frequencies that an organism can produce

general ecology1 paper
measurement

alpha ejection correction

Correction factor accounting for loss of helium due to alpha particles being ejected from mineral grains during radioactive decay

methodological1 paper
phenomenon

altriciality

Developmental condition where nestlings lack down, sufficient mobility, and ability to feed themselves, characterizing species like Mountain White-crowned sparrows

population ecology1 paper
process

amino acid requirements

Essential and nonessential amino acid needs for bee development, particularly focusing on requirements outlined for honeybees

biogeochemistry1 paper
framework

amphibian conservation

Conservation strategies for protecting declining amphibian populations globally

general ecology1 paper
process

anaerobic protection

Protection of organic carbon upon burial under anaerobic conditions through kinetic and thermodynamic constraints on microbial activity that can limit depolymerization and respiration of organic compo...

biogeochemistry1 paper
process

anaerobic protection

biogeochemistry1 paper
framework

analytical facilities

methodological1 paper
process

anesthesia

Artificially produced unconsciousness used during procedures to block sensations of pain

methodological1 paper
phenomenon

animal personality

Consistent individual differences in behaviour across time and contexts, concept known as animal personality, behavioural types, temperament or coping styles

population ecology1 paper
phenomenon

animal personality

population ecology1 paper
measurement

anisotropy of magnetic susceptibility

The directional dependence of magnetic susceptibility in rocks that results from depositional, diagenetic, syn- and post-sedimentary processes affecting magnetic grains

methodological1 paper
measurement

annual ET

hydrology1 paper
process

annual species life cycle

Life history where only present year queens overwinter while all males, workers, and old queens die by first snow cover

population ecology1 paper
process

ant recruitment

Process by which ants discover and begin tending aphid colonies

community ecology1 paper
process

antagonism

When multiple cues indicate decreased likelihood of an event, resulting in diminished response to composite stimulus

general ecology1 paper
process

antagonistic coevolution

Evolutionary interaction where male traits evolve to overcome female resistance to mating

evolution1 paper
hypothesis

antagonistic pleiotropy

Alternate alleles are favoured in distinct habitats, and polymorphism is maintained by selection

evolution1 paper
process

anthesis

general ecology1 paper
theory

anti-parasitism strategy

Evolved adaptations that reduce vulnerability to parasites through various mechanisms including resource specialization

evolution1 paper
process

apical dominance

Plant growth pattern where terminal bud suppresses lateral growth, which can be disrupted by herbivory

general ecology1 paper
model type

approximate Bayesian computation

A computational method for model fitting that contrasts the influence of different mechanisms by simulating data under different parameter sets

methodological1 paper
phenomenon

arboreal behavior

Use of trees by terrestrial mammals for foraging, resting, or other activities

general ecology1 paper
measurement

area of occupancy

The area within a species' extent of occurrence that is actually occupied by the species, calculated using grid-based methods

biogeography1 paper
phenomenon

arkose

general ecology1 paper
framework

art-science collaboration

Interdisciplinary partnerships between artists and scientists that create new works and approaches that would not be possible without the collaboration

methodological1 paper
measurement

ash content

Percentage of inorganic material remaining after high-temperature combustion

biogeochemistry1 paper
process

aspect effects

Influence of slope orientation on temperature due to differential solar heating throughout the day

climate1 paper
process

aspen succession

Process by which aspen acts as climax forest in the Upper East River Valley and expands into adjacent habitats through vegetative reproduction

community ecology1 paper
process

assisted migration

The introduction of a species to previously inhabited areas or to new suitable regions

general ecology1 paper
process

associational defenses

Protection gained by an organism from living in association with another species

community ecology1 paper
process

atmospheric acidification

climate1 paper
process

atmospheric correction

Processing procedure to remove atmospheric effects from hyperspectral radiance data to estimate surface reflectance

methodological1 paper
measurement

atmospheric profiling

Vertical measurement of atmospheric properties including temperature, humidity, wind, and aerosol concentrations

climate1 paper
framework

atmospheric radiation measurement

DOE's user facility providing comprehensive atmospheric measurements across diverse climatic regions

climate1 paper
phenomenon

atmospheric soot emissions

Ten percent of all annual atmospheric soot emissions in Northern Hemisphere are from boreal wildfires

climate1 paper
process

autonomous selfing

population ecology1 paper
phenomenon

avalanche disturbance

Natural disturbance event that can affect small mammal populations by crushing animals, destroying burrows, eliminating food sources, or preventing emergence after hibernation

general ecology1 paper
measurement

avalanche runout distance

The horizontal distance an avalanche travels from the starting zone to where it stops

climate1 paper
phenomenon

avian malaria

population ecology1 paper
morphological feature

axial filling

methodological1 paper
measurement

back-trajectory analysis

Computational method to trace the path of air masses backwards in time to determine source regions

methodological1 paper
measurement

backward cumulative TTD

hydrology1 paper