Concepts

All (3,182)Explore Concept Graph

3,182 concepts

measurement

oligolectic

population ecology1 paper
phenomenon

omnivory

Animals which feed on both plant and prey sources, allowing them to effect multiple trophic levels within a food web

community ecology1 paper
process

onlap

general ecology1 paper
framework

open system dynamics

Population dynamics in systems characterized by high levels of dispersal and recruitment from external sources

population ecology1 paper
framework

open systems

community ecology1 paper
measurement

operational taxonomic units

Term used to represent each morphospecies of culturable fungi in lieu of species name as species has not currently been established by means of sequencing

methodological1 paper
concept

opportunity cost

Cost of remaining in refuge measured as lost foraging opportunities or other beneficial activities

population ecology1 paper
theory

optimal allocation theory

Theory predicting that parents should allocate investment amongst their progeny according to an optimum at which their own (i.e., the parents') fitness is maximized

population ecology1 paper
hypothesis

optimal cluster size hypothesis

The hypothesis that there is an optimal egg cluster size that maximizes fitness by balancing benefits and costs of aggregation

population ecology1 paper
theory

optimal control theory

methodological1 paper
molecular mechanism

optix transcription factor

Transcription factor gene controlling scale development and coloration in butterflies

molecular1 paper
process

orbital forcing

Climate changes driven by variations in Earth's orbital parameters affecting incoming solar radiation distribution

climate1 paper
model type

ordinal logistic regression

A regression approach that allows for multiple ordered response categories and provides more specific interpretation of exact probability of socioeconomic characteristics on constraints

methodological1 paper
phenomenon

ore shoots

Local concentrations of ore minerals within veins

general geology1 paper
framework

organization structure

forestry1 paper
metric

ortholog hit ratio

Measure of genome annotation quality based on similarity of predicted proteins to reference orthologs

molecular1 paper
phenomenon

outdoor recreation constraints

Barriers that can be impediments to individuals participating in outdoor recreational activities, often reflected in sociocultural issues

general ecology1 paper
process

outlier detection

Statistical identification of observations that deviate significantly from expected patterns in meteorological data

methodological1 paper
process

ovarian diapause

Reproductive strategy where females delay egg development and deposit eggs in terrestrial habitats during autumn after entering diapause

population ecology1 paper
process

ovary development

population ecology1 paper
metric

overlap coefficient

A measure of the degree to which two phenological distributions overlap in time, calculated by integrating the area under both probability density curves

methodological1 paper
phenomenon

overpopulation

Population density exceeding the carrying capacity of available resources, leading to reduced individual condition

population ecology1 paper
phenomenon

oxbow deposits

Diffusion-limited organic-rich deposits that result from river meanders with fine-grained nature producing near-zero rate of water flow

hydrology1 paper
process

oxygen A-band absorption

Atmospheric absorption of solar radiation by molecular oxygen around 760nm wavelength used for pressure level determination

climate1 paper
measurement

oxytocin

Neuropeptide hormone often called 'love drug' or 'cuddle hormone' that mediates a suite of behavioral traits ranging from ultrasocial to antisocial

molecular1 paper
hypothesis

pace-of-life hypothesis

Hypothesis proposing that individuals vary in life-history strategies covarying with suites of morphological, physiological and behavioural characteristics, where fast-growing individuals should be mo...

population ecology1 paper
theory

pace-of-life syndrome

Correlations between boldness and an individual's willingness to face risk for food, linked to growth rate

evolution1 paper
theory

pace-of-life syndrome

Hypothesis positing that a series of behavioural and physiological axes of variation correlates with the individual slow-fast continuum

population ecology1 paper
framework

paired watershed study

An experimental design using matched watershed pairs to isolate treatment effects while controlling for natural variation

methodological1 paper
measurement

palatability

The acceptability of food items based on taste, texture, and chemical composition

population ecology1 paper
phenomenon

paleo-valley

An ancient valley system that may have influenced past patterns of erosion and exhumation

landscape1 paper
measurement

paleocurrent analysis

Analysis of directional sedimentary structures to determine ancient flow directions

sedimentology1 paper
framework

paleoecology

general ecology1 paper
process

paleoglacier reconstruction

Reconstruction of past glacier extents and ice thickness using geomorphic evidence and numerical modeling

climate1 paper
measurement

paleomagnetic data

methodological1 paper
measurement

paleosalinity reconstruction

Determination of ancient water salinity conditions using geochemical and paleontological indicators

biogeochemistry1 paper
phenomenon

pan trap sampling bias

The differential attraction of insects to certain colored traps, potentially leading to non-representative samples of the true community

methodological1 paper
phenomenon

panorama

Large-scale moving or stationary paintings designed to create immersive visual experiences for 19th-century audiences

methodological1 paper
process

paragenesis

The sequence of mineral formation and deposition in ore deposits

general geology1 paper
process

parallax correction

Geometric correction for apparent horizontal displacement of cloud location due to satellite viewing angle

methodological1 paper
hypothesis

parallel trends assumption

methodological1 paper
phenomenon

parasite aggregation

Non-random distribution of parasites among hosts with most hosts having few parasites

population ecology1 paper
process

parasite-mediated sexual selection

The influence of parasites on sexually selected traits and mate choice decisions

evolution1 paper
process

parasitism

Attack by parasitoid species that use lycaenid larvae as hosts for their development

community ecology1 paper
measurement

parasitoid wasp DNA

molecular1 paper
framework

parent-child spatial relationships

methodological1 paper
theory

parental care trade-offs

The conflicting pressures parent birds face between maintaining optimal nest conditions and foraging to meet metabolic needs

population ecology1 paper
theory

parental desertion model

Theoretical framework predicting when parents will abandon offspring based on costs and benefits of continued care versus seeking additional mating opportunities

population ecology1 paper
phenomenon

parsivoltinism

Life cycle strategy where organisms take more than one year to complete development

general ecology1 paper
model type

partial life-cycle model

Age-structured demographic model where fertility is approximated by an average fertility parameter and age-specific survival from α until death

population ecology1 paper